CLASS 271, SHEET FEEDING OR DELIVERING |
1 | SPECIAL ARTICLES: |
This subclass is indented under the class definition. Means adapted for feeding or delivering sheet-like bodies or sheets of other than rectangular outline. | |
2 | . Envelope: |
This subclass is indented under subclass 1. Means adapted to handle unsealed envelopes and the like. | |
3.01 | DELIVERING TO STACK AND FEEDING THEREFROM: |
This subclass is indented under the class definition. Subject matter including means for moving an individual
sheet from a pack of sheets and placing the individual sheet toward
an operation and means for removing the individual sheet from the
operation and placing the individual sheet in the same pack of sheets.
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3.02 | . Aligning at stack: |
This subclass is indented under subclass 3.01. Subject matter including means for positioning the pack
of sheets with respect to a part of a support for the pack or with
respect to a part of the sheet moving means.
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3.03 | . Intermediate tray: |
This subclass is indented under subclass 3.01. Subject matter comprising a receiver and wherein the individual sheet is moved from the pack of sheets and collected temporarily in the receiver before placing the individual sheet toward the operation. | |
3.04 | . With job divider (e.g., resettable bail bar or double bar separator): |
This subclass is indented under subclass 3.01. Subject matter comprising a means for separating apart
a set of sheets from the sheets being delivered to the pack.
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3.05 | . Feeding from bottom of stack: |
This subclass is indented under subclass 3.01. Subject matter wherein the individual sheet is moved from
the lowermost part of the pack of sheets and placed toward the operation.
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3.06 | .. Control for feeding responsive to delivering: |
This subclass is indented under subclass 3.05. Subject matter including means for sensing an occurrence
of a condition or a change in condition of the device which removes
the individual sheet from the operation and in response thereto
acts to start, stop or change the mode of moving the individual
sheet from the pack of sheets and placing toward the operation.
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3.07 | .. Pneumatic separating: |
This subclass is indented under subclass 3.05. Subject matter wherein the sheet is individualized and moved
from the pack of sheets by suction or air blast.
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3.08 | . Feeding from top of stack: |
This subclass is indented under subclass 3.01. Subject matter wherein the individual sheet is moved from
the uppermost part of the pack of sheets and placed toward the operation.
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3.09 | .. Control for feeding responsive to delivering: |
This subclass is indented under subclass 3.08. Subject matter including means for detecting an occurrence of a condition or a change in condition of the device which removes the individual sheet from the operation and in response acts to start, stop or change the mode of moving the individual sheet from the pack of sheets and placing it toward the operation. | |
3.11 | .. Pneumatic separating: |
This subclass is indented under subclass 3.08. Subject matter wherein the sheet is individualized and moved
from the pack of sheets by suction or air blast.
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3.12 | . Sheets on edges: |
This subclass is indented under subclass 3.01. Subject matter wherein the pack of sheets is held so that
the sheets derive a substantial amount of support from their outer
borders.
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3.13 | . With sheet sensor for selective location: |
This subclass is indented under subclass 3.01. Subject matter including means for detecting the presence
or absence of the sheet at a designated position along a path of
sheet movement.
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3.14 | FEEDING AND DELIVERING: |
This subclass is indented under the class definition. Subject matter including means for moving an individual
sheet from a position or from a pack of sheets and placing it toward
an operation; and including means for removing the individual sheet
from the operation after having been operated on or placing the
individual sheet on a receiver after having been operated on.
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3.15 | . Sensor located at the feeder and controls the delivering: |
This subclass is indented under subclass 3.14. Subject matter wherein a detecting means is positioned at
the sheet moving and placing means for regulating the means for
removing the sheet from the operation after having been operated
on or placing the sheet on a receiver after having been operated
on.
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3.16 | .. Having timer: |
This subclass is indented under subclass 3.15. Subject matter comprising a time recording device wherein the time recording device is responsive to the sensor for controlling the delivering of the sheets. | |
3.17 | . Sensor located at the delivering and controls the feeding: |
This subclass is indented under subclass 3.14. Subject matter wherein a detecting means is positioned at
the sheet removing and placing means for regulating the means for
moving the individual sheet from the pack of sheets or placing the
sheet toward the operation.
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3.18 | . Conveyor releases to subsequent conveyor: |
This subclass is indented under subclass 3.14. Subject matter wherein the individual sheet is removed by
a sheet carrying means which discharges the individual sheet to
another sheet carrying means.
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3.19 | .. With alternate conveying path: |
This subclass is indented under subclass 3.18. Subject matter wherein the subsequent conveyor carries the individual sheet at least to two distinct routes. | |
3.2 | .. Including conveyor couple: |
This subclass is indented under subclass 3.18. Subject matter wherein one of the sheet carrying means consisting
of two elements each of which elements has an endless orbitally-moving
surface rotating in opposite directions, the surface of one element
being opposite to and spaced from the surface of the other element during
at least a portion of their movement and the surfaces moving in
the same direction and engaging opposite surfaces of the sheet lying therebetween
during the portion of their movement.
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3.21 | .. On peripheral face of drum or belt: |
This subclass is indented under subclass 3.18. Subject matter wherein one of the sheet conveyors includes
a circumferential surface of a rotating or endlessly orbiting member.
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3.22 | ... Pneumatic: |
This subclass is indented under subclass 3.21. Subject matter wherein the circumferential surface of the
sheet conveyor engages the sheet by suction or air blast.
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3.23 | .. Including pneumatic conveyor: |
This subclass is indented under subclass 3.18. Subject matter comprising at least one sheet carrying means
for engaging the individual sheet by suction or air blast.
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3.24 | .. Including gripper couple: |
This subclass is indented under subclass 3.18. Subject matter including at least two elements having surfaces located adjacent to and opposite to one another, the element surfaces engaging opposed surfaces of the sheet located between the element surfaces with sufficient frictional force to move the sheet. | |
4.01 | . Separator and conveyor: |
This subclass is indented under subclass 3.14. Subject matter including means for individualizing a sheet
relative to a pack of sheets and moving the individual sheet from
its position in the pack, and a means for carrying the individual
sheet away from the pack toward the operation.
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5 | .. Pneumatic separator: |
This subclass is indented under subclass 4.01. The separator having means for engaging the sheet by suction
or air blast.
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6 | .. Continuous endless conveyor: |
This subclass is indented under subclass 4.01. The same endless band or bands carrying the sheet to and taking it from operative position. | |
4.02 | .. Sensor located at the separator and controls the conveyor: |
This subclass is indented under subclass 4.01. Subject matter comprising a detecting means positioned
at the sheet individualizing and moving means for regulating the
sheet carrying means.
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4.03 | .. Sensor located at the conveyor and controls the separator: |
This subclass is indented under subclass 4.01. Subject matter comprising a detecting means at the sheet
carrying means for regulating the sheet individualizing and moving
means.
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4.04 | .. Mechanically linked for simultaneous operation: |
This subclass is indented under subclass 4.01. Subject matter wherein (1) a gear and clutch, or (2) a shaft,
roller and cam mechanism or the equivalent; drives the separator
and conveyor at the same time.
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4.05 | .. Endless belt separator: |
This subclass is indented under subclass 4.01. Subject matter wherein the separator is a continuous band
of flexible material.
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4.06 | ... To endless belt conveyor: |
This subclass is indented under subclass 4.05. Subject matter wherein the conveyor is a continuous band
of flexible material and the sheet is moved by the separator to
the conveyor.
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4.07 | ... To rotary conveyor: |
This subclass is indented under subclass 4.05. Subject matter wherein a conveyor turns about an axis in
an arc of a circle and the individualized sheet from the endless
separator is carried to the conveyor.
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4.08 | .. Rotary separator: |
This subclass is indented under subclass 4.01. Subject matter wherein the separator turns about an axis
in an arc of a circle.
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4.09 | ... To endless belt conveyor: |
This subclass is indented under subclass 4.08. Subject matter wherein the conveyor is a continuous band
of flexible material and the sheet is moved by the separator to
the conveyor.
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4.1 | ... To rotary conveyor: |
This subclass is indented under subclass 4.08. Subject matter wherein the conveyor turns about an axis
in an arc of a circle and the individualized sheet from the rotary
separator is carried to the conveyor.
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4.11 | .. Reciprocating separator: |
This subclass is indented under subclass 4.01. Subject matter wherein the separator undergoes a to and
fro movement during its operation.
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4.12 | ... To rotary conveyor: |
This subclass is indented under subclass 4.11. Subject matter wherein the conveyor turns about an axis
in an arc of a circle and the individualized sheet from the endless
separator is carried to the conveyor.
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7 | . Continuous endless conveyors: |
This subclass is indented under subclass 3.14. The same endless band or bands carrying the sheet to and carrying it from operative position. | |
8.1 | FEEDING: |
This subclass is indented under the class definition. Subject matter for moving an individual sheet from a pack
of sheets, or moving the individual sheet toward an operation, or
positioning the individual sheet with respect to a location where
the individual sheet is operated upon.
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9.01 | . Multiple supplies: |
This subclass is indented under subclass 8.1. Subject matter including two or more feeding sources. | |
9.02 | .. Sheet feeding from one supply controls feeding from another supply: |
This subclass is indented under subclass 9.01. Subject matter wherein a means for (a) moving an individual sheet from a position or from a pack of sheets and (b) placing the individual sheet toward an operation from one source regulates the moving and placing of the individual sheets of the other source. | |
9.03 | ... Responsive to empty supply: |
This subclass is indented under subclass 9.02. Subject matter wherein the feeding means includes a device
for sensing depletion or near depletion of one feeding source and
in response thereto controls the feeding from the other source.
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9.04 | ... Alternate feeding: |
This subclass is indented under subclass 9.02. Subject matter wherein at least two distinct means are operating
one after the other each on its own source of supply for moving
the individual sheet from the position or from the pack of sheets
and placing it toward the operation.
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9.05 | .. Supply selection (e.g., sheet color): |
This subclass is indented under subclass 9.01. Subject matter wherein the supply includes sheets having a plurality of unique characteristics and at least one of the feeding means controls the feeding of the sheet having one specific characteristic such as a particular color. | |
9.06 | ... Size selection: |
This subclass is indented under subclass 9.05. Subject matter wherein one of the characteristics is a particular dimension of the sheet. | |
9.07 | .. Single separator acts on multiple supplies: |
This subclass is indented under subclass 9.01. Subject matter wherein only one device is provided for individualizing and moving sheets from the multiple supplies. | |
9.08 | ... Movably mounted supply: |
This subclass is indented under subclass 9.07. Subject matter wherein a support for at least one of the sources moves relative to the separator. | |
9.09 | .. Including manual supply: |
This subclass is indented under subclass 9.01. Subject matter wherein at least one of the feeding sources comprises a human operated sheet feeding mechanism. | |
9.1 | .. Including continuous web supply: |
This subclass is indented under subclass 9.01. Subject matter wherein at least one of the feeding sources provides a sheet having an indefinable length. | |
9.11 | .. Superposed supplies: |
This subclass is indented under subclass 9.01. Subject matter wherein the two or more sources, each complete
with its own feeding means, are placed one above the other.
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9.12 | .. Juxtaposed supplies: |
This subclass is indented under subclass 9.01. Subject matter wherein the two or more sources each complete
with its own feeding means are arranged side by side in linear relationship.
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9.13 | .. With convergence to single path: |
This subclass is indented under subclass 9.01. Subject matter wherein an individual flow of sheets from the two or more feeding sources merge together into a common flow route. | |
10.01 | . Separator and conveyor: |
This subclass is indented under subclass 8.1. Subject matter including means for individualizing a sheet
relative to a pack of sheets and moving the individual sheet from
its position in the pack and a means for carrying the individual
sheet away from the pack toward the operation.
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11 | .. Pneumatic separator: |
This subclass is indented under subclass 10.01. The separator having means for engaging the sheet by suction
or air-blast.
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12 | ... Endless conveyor: |
This subclass is indented under subclass 11. The sheet being carried from the separator by one or more endless bands. | |
13 | .... Side aligner: |
This subclass is indented under subclass 12. With means for positioning the lateral edge of the sheet parallel to the line of travel. | |
14 | ... Reciprocating conveyor: |
This subclass is indented under subclass 11. The sheet being carried away from the separator by a member moving to-and-fro in a straight path. | |
15 | ... Side aligner: |
This subclass is indented under subclass 11. With means for positioning the lateral edge of the sheet parallel to the line of travel. | |
16 | .. Buckling separator and endless conveyor: |
This subclass is indented under subclass 10.01. With means for forcing an intermediate portion of the sheet away from the pack, while the ends remain in contact therewith, and one or more endless bands for then carrying the sheet therefrom. | |
17 | ... Side aligner: |
This subclass is indented under subclass 16. With means for positioning the lateral edge of the sheet
parallel to the line of travel.
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10.02 | .. Sensor located at the separator and controls the conveyor: |
This subclass is indented under subclass 10.01. Subject matter comprising a detecting means at the sheet
individualizing and moving means for regulating the sheet carrying
means.
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10.03 | .. Sensor located at the conveyor and controls the separator: |
This subclass is indented under subclass 10.01. Subject matter comprising a detecting means at the sheet
carrying means for regulating the sheet individualizing and moving
means.
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10.04 | .. Mechanically linked for simultaneous operation: |
This subclass is indented under subclass 10.01. Subject matter wherein (1) a gear and clutch, or (2) a shaft,
roller and cam mechanism or the equivalent; drives the separator
and conveyor at the same time.
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10.05 | .. Selective drive (e.g., number of degree of rotation): |
This subclass is indented under subclass 10.01. Subject matter includes a device for permitting a certain amount of movement of the separator or the conveyor such as a number of degree of rotation of the separator. | |
10.06 | .. Endless belt separator: |
This subclass is indented under subclass 10.01. Subject matter wherein the separator is a continuous band
of flexible material.
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10.07 | ... To endless belt conveyor: |
This subclass is indented under subclass 10.06. Subject matter wherein the conveyor is a continuous band
of flexible material and the individualized sheet is moved by the
separator to the conveyor.
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10.08 | ... To rotary conveyor: |
This subclass is indented under subclass 10.06. Subject matter wherein the conveyor turns about an axis
in an arc of a circle and the individualized sheet from the endless
separator is carried to the conveyor.
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10.09 | .. Rotary separator: |
This subclass is indented under subclass 10.01. Subject matter wherein the sheet individualizing and moving
means includes a surface or an element that turns about an axis
in an arc of a circle.
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10.1 | ... To endless belt conveyor: |
This subclass is indented under subclass 10.09. Subject matter wherein the individualized sheet is carried
from the rotary separator by a continuous band of flexible material.
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10.11 | ... To rotary conveyor: |
This subclass is indented under subclass 10.09. Subject matter wherein the conveyor turns about an axis
in an arc of a circle and the individualized sheet from the endless
separator is carried to the conveyor.
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10.12 | .... With aligning: |
This subclass is indented under subclass 10.11. Subject matter including means for positioning or locating the sheet with respect to the location of the rotary conveyor. | |
10.13 | .... With clutch: |
This subclass is indented under subclass 10.11. Subject matter wherein the rotary separator and conveyor arrangement combined with a mechanism which selectively engages and disengages an arrangement of the driving parts of the separator and the conveyor. | |
10.14 | .. Reciprocating separator: |
This subclass is indented under subclass 10.01. Subject matter wherein the separator undergoes a to and
fro movement during its operation.
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10.15 | ... To endless belt conveyor: |
This subclass is indented under subclass 10.14. Subject matter wherein the individualized sheet is carried from the reciprocating separator by a continuous band of flexible material. | |
10.16 | ... To rotary conveyor: |
This subclass is indented under subclass 10.14. Subject matter wherein the conveyor turns about an axis
in an arc of a circle and the individualized sheet from the reciprocating
separator is carried to the conveyor.
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18 | . Separators: |
This subclass is indented under subclass 8.1. Means for removing an individual sheet from its position
in a pack.
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18.1 | .. Magnetic or electrostatic: |
This subclass is indented under subclass 18. Device wherein the removal of the sheet is effected or facilitated
by an element or mechanism that generates lines of magnetic flux
or static electricity.
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18.2 | ... Cyclicly moving: |
This subclass is indented under subclass 18.1. Device wherein the element or mechanism is periodically
moved relative to the pack to effect the removal of individual sheets
from the pack.
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18.3 | .. Surface-piercing element(s): |
This subclass is indented under subclass 18. Device wherein the sheet-removal means includes one or more
sharp pointed members, the point of which penetrates the face of
the sheet that is to be removed.
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19 | .. Buckling: |
This subclass is indented under subclass 18. Adapted to force an intermediate portion of the sheet away
from the pack while the ends remain in contact therewith.
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20 | ... Pneumatic: |
This subclass is indented under subclass 19. Wherein the sheet is engaged by suction or air-blast. | |
21 | ... Rotary: |
This subclass is indented under subclass 19. Wherein the sheet is engaged by a member moving in the arc of a circle. | |
22 | .... Pack advancer: |
This subclass is indented under subclass 21. Having means for keeping top or side feed packs forced into position for separating. | |
23 | .... Bottom feed: |
This subclass is indented under subclass 21. The pack being so held as to permit it to fall into position for separating a sheet. | |
24 | ... Pack advancer: |
This subclass is indented under subclass 19. Having means for keeping top or side feed packs forced into position for separating. | |
25 | .... Feeler control: |
This subclass is indented under subclass 24. Having means contacting with a portion of the pack to control the action of the advancer. | |
90 | .. Pneumatic: |
This subclass is indented under subclass 8.1. Device wherein the sheet-removing means engages an individual
sheet by a gaseous fluid medium under subatmospheric or above-atmospheric
pressure.
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91 | ... Plural, relatively-moving suction members: |
This subclass is indented under subclass 90. Device wherein the sheet-removing means comprises at least
two vacuum elements, each of which is movable relative to the stack,
and each of which is also movable relative to the other.
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92 | .... Laterally receding members (e.g., for tautening sheet laterally): |
This subclass is indented under subclass 91. Device wherein at least two of the elements that are in engagement with a sheet move away from each other in a direction that is transverse to the direction of feeding of the sheet so engaged, thereby tending to tension an area of the sheet that is between the elements. | |
93 | .... Including members for separating and members for forwarding sheet: |
This subclass is indented under subclass 91. Device wherein at least one of the elements moves to and
from the stack of sheets in a direction generally perpendicular
to the plane of the foremost sheet to engage and move the foremost
sheet away from the stack, and wherein another of the elements moves
in a direction generally parallel to said plane, whereby said one
element initiates the movement of a foremost sheet and transfers
said foremost sheet to the other of the elements to continue the
movement of the foremost sheet away from the stack.
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94 | ... Unidirectionally-moving suction member or surface: |
This subclass is indented under subclass 90. Device wherein the sheet-removing means comprises an element
that turns continually in the same direction, through the surface
of which element vacuum is applied to engage and remove a sheet
from a stack.
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95 | .... Having additional movement: |
This subclass is indented under subclass 94. Device wherein motion is imparted to said element, which
motion is supplemental to the turning of the element.
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96 | .... With means to adjust suction: |
This subclass is indented under subclass 94. Device provided with means to vary the zone or area on the
foremost sheet where vacuum is applied, or to vary the degree of
vacuum applied, or vary the effect of the vacuum applied.
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97 | ... Sheet removal by pressurized gas: |
This subclass is indented under subclass 90. Device wherein the sheet-removing means includes a source
of air or other gaseous medium subjected to above-atmospheric pressure.
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98 | .... And suction means: |
This subclass is indented under subclass 97. Device wherein the sheet-removing means also includes a vacuum element operating in conjunction with the pressurized air. | |
99 | ... Suction member acting on bottom of pack: |
This subclass is indented under subclass 90. Device wherein a stack of sheets is held so as to permit
the sheets thereof to fall into position at which the sheet-removing
means engages the lowermost sheet of the stack, and wherein the
sheet-removing means comprises a vacuum element.
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100 | .... Oscillating member bending margin of bottom sheet: |
This subclass is indented under subclass 99. Device wherein the vacuum element moves to and from the
stack, and during its movement away from the stack engages a portion
of the lowermost sheet adjacent one of the edges or corners thereof
to move that portion away from the undisturbed residue of the stack.
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101 | ..... With moving segments supporting remainder of pack: |
This subclass is indented under subclass 100. Device provided with at least one component that is moved
from a position outside the stack to a position between the bent
portion of the lowermost sheet of the stack and the undisturbed
portion of the next-to-lowermost sheet of the stack, thereby to
hold the undisturbed residue of the stack against feeding movement during
separation of the lowermost sheet from the stack.
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102 | .... Suction member reciprocating perpendicularly to sheet: |
This subclass is indented under subclass 99. Device wherein the vacuum element moves to and from the
stack in a direction generally normal to the plane of the lowermost
sheet of the stack.
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103 | ... Sheet-moving action of suction member results from engagement with sheet: |
This subclass is indented under subclass 90. Device wherein the sheet-removing means includes a vacuum cup mounted on an array of telescopically projectable and retractable elements, through which array a source of vacuum is applied, and wherein the projection of the vacuum cup toward the foremost sheet of a stack causes a sheet-engaging orifice of the vacuum cup to be sealed by the foremost sheet, whereupon the increase in vacuum (i.e., decrease in pressure) within the array following the sealing causes the array and the cup mounted thereon to be retracted from the stack with the foremost sheet attracted to the cup. | |
104 | ... With means to restrain feed of next sheet: |
This subclass is indented under subclass 90. Device provided with means to retard the removal of the
sheet adjacent to and succeeding the foremost sheet of the stack.
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105 | ... Means effecting preliminary operation on sheets in pack: |
This subclass is indented under subclass 90. Device including a means using a gaseous fluid medium under
subatmospheric or above-atmospheric pressure, which means acts on
any of the sheets of a stack to separate at least a portion of a
sheet from a corresponding portion of an adjacent sheet, but without
removing any of the sheets from the stack.
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106 | .... Suction member flexing sheet or portion: |
This subclass is indented under subclass 105. Device wherein the means is a vacuum element that bends
all or a part of the foremost sheet prior to removal of said sheet
from a stack.
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107 | ... Oscillating suction member: |
This subclass is indented under subclass 90. Device wherein the sheet-removing means is a vacuum element that moves to and from the stack in the arc of a circle. | |
108 | ... Controlled by valve means: |
This subclass is indented under subclass 90. Device wherein the flow of gaseous medium to or from the
sheet-removal means is regulated by mechanism to vary or stop such
flow.
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30.1 | ... Pack advancer: |
This subclass is indented under subclass 90. Device provided with means to urge a stack of sheets in
a direction such that the foremost sheet of the stack is in a position
appropriate for removal of a single sheet.
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31 | .... Feeler control: |
This subclass is indented under subclass 30.1. Having means contacting with a portion of the pack to control the action of the advancer. | |
31.1 | .... Stack on Edge: |
This subclass is indented under subclass 30.1. Devices wherein a stack holder is provided and arranged
to support the stack so that the individual sheets derive a substantial
amount of their support from their edges.
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33 | .. Adhesive: |
This subclass is indented under subclass 18. The sheet-engaging means supplied with a substance to which
the sheet will adhere.
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34 | .. Endless belt: |
This subclass is indented under subclass 18. The sheet engaged by one or more endless bands.
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35 | ... Bottom feed: |
This subclass is indented under subclass 34. The pack being so held as to permit it to fall into position for separating. | |
109 | .. Rotary: |
This subclass is indented under subclass 8.1. Device wherein the sheet-removing means engages an individual
sheet by a surface or element that turns about an axis in an arc
of a circle.
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37 | ... Preliminary protrusion: |
This subclass is indented under subclass 109. Each sheet being slightly projected from the pack prior to its engagement by the rotary separator. | |
38 | .... Feeler control: |
This subclass is indented under subclass 37. Having means contacting with a portion of the pack to control the operation. | |
110 | ... Control of separator responsive to sensing of sheet: |
This subclass is indented under subclass 109. Device provided with means to detect the absence or presence
of a sheet from the pack or stack of sheets, and further provided
with means to activate or deactivate the sheet-removing means as
a result of such detection.
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111 | .... Including plural separators or plural sensors: |
This subclass is indented under subclass 110. Device provided with two or more sheet-removing means or provided with two or more detectors. | |
112 | ... Suction assisted: |
This subclass is indented under subclass 109. Device provided with means in addition to the turning surface
or element, which means includes a source of vacuum or subatmospheric pressure
that facilitates the operation of the sheet-removing means.
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113 | ... Separator rotating in plane of foremost sheet: |
This subclass is indented under subclass 109. Device wherein the axis of turning is perpendicular to the
surface of the sheet that is nearest the sheet-removing means, whereby
the means turns in a zone that is parallel to said surface.
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114 | ... Variably or intermittently driven: |
This subclass is indented under subclass 109. Device wherein the sheet-removing means is impelled to be turned by mechanism that imparts changeable turning speeds to the means, or imparts different turning speeds to different sheet-engaging portions of the means, or imparts a discontinuous turning motion to the means. | |
115 | .... In oscillatory movement: |
This subclass is indented under subclass 114. Device wherein the sheet-removing means turns partially to-and-fro about an axis, whereby the means feeds a sheet during one direction of its turning and retracts to its initial position during its reverse direction of turning. | |
116 | .... By over-running one-way drive: |
This subclass is indented under subclass 114. Device provided with a clutch mechanism that imparts a turning motion to the sheet-removing means during only a portion of the time required for removal of a sheet, and thereafter permits the sheet-removing means to be turned by continued movement of the sheet past said means until the sheet is fully removed. | |
117 | ... Separator adjustable or retractable relative to pack: |
This subclass is indented under subclass 109. Device wherein the sheet-removing means is mounted on structure
that permits the position of said means to be varied with respect
to the stack of sheets or permits said means to be moved away from
the stack, or wherein the stack of sheets is mounted on structure
that permits the stack to be moved away from the sheet-removing
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
118 | .... Feed by successive approach and retraction: |
This subclass is indented under subclass 117. Device wherein the sheets are sequentially removed from
the stack by alternately bringing together and moving apart the
sheet-removing means and the stack in continuous sequence of operations.
| |||
119 | ... Separator having non-uniform periphery: |
This subclass is indented under subclass 109. Device wherein the surface or element that turns about an
axis is not circular or is not regular in its circumference.
| |||
120 | .... Including relatively movable elements: |
This subclass is indented under subclass 119. Device wherein the surface or element that turns about an
axis is mounted so as to have an additional motion with respect
to the axis of turning.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
121 | ... With means to restrain feed of next sheet: |
This subclass is indented under subclass 109. Device provided with means to retard the removal of the
sheet adjacent to and succeeding the foremost sheet of the stack.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
122 | .... By restrainer having rearwardly moving surface: |
This subclass is indented under subclass 121. Device wherein a face of said retarding means adjacent to the foremost sheet has motion imparted thereto, which motion is in a direction opposite to the direction of movement of the foremost sheet during separation thereof. | |
123 | .... By restrainer acting on rear end of sheet: |
This subclass is indented under subclass 121. Device wherein said sheet-retarding means engages a margin or edge of the foremost sheet or the sheets adjacent to the foremost sheet, which margin or edge is that which is opposite to the direction of movement of the foremost sheet during separation thereof. | |
124 | .... By adjustable restrainer: |
This subclass is indented under subclass 121. Device wherein the sheet-retarding means is located adjacent
the sheet-removing means to form an opening that permits the foremost sheet
to be moved out of a stack holder, and the extent of the opening
is variable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
125 | ..... Including restraining roller: |
This subclass is indented under subclass 124. Device wherein one of the elements comprising the sheet-retarding
means is a cylindrical member which may rotate.
| |||
126 | ... With means to urge pack toward separator: |
This subclass is indented under subclass 109. Device provided with means to force a stack of sheets in
a direction such that the foremost sheet of the stack is in a position
appropriate for removal of single sheets.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
127 | .... Including pivoted pack holder: |
This subclass is indented under subclass 126. Device provided with a structure to hold a stack of sheets, which structure is permitted to turn toward the sheet-removing means to a limited extent about an axis. | |
42 | .. Reciprocating: |
This subclass is indented under subclass 18. The sheet being engaged by a member moving to and fro in
a straight path.
SEE OR SEARCH CLASS:
| |||
128 | ... With pack advancer: |
This subclass is indented under subclass 42. Device having means for urging top and side feed packs into
position appropriate for removal of single sheets.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
129 | .... With sheet on edge: |
This subclass is indented under subclass 128. Device wherein the pack is held so that the sheets thereof
derive a substantial amount of their support from their edges.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
130 | .... And feeler control for advancer: |
This subclass is indented under subclass 128. Device provided with means to detect the absence or presence
of a sheet adjacent a sheet-removal zone, and further provided with
means to activate or deactivate the stack-urging means as a result
of such detection.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
131 | ... Bottom feed: |
This subclass is indented under subclass 42. Device wherein the stack of sheets is held so as to permit
the sheets thereof to fall into position at which the reciprocating
member engages the lowermost sheet for separation of the lowermost
sheet from the stack.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
132 | .... Suction assisted: |
This subclass is indented under subclass 131. Device provided with means in addition to the reciprocating
member, which means include a source of vacuum or subatmospheric
pressure that facilitates the operation of the reciprocating member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
133 | .... With means to prepare pack or bottom sheet for feeding: |
This subclass is indented under subclass 131. Device provided with means that acts on a stack of sheets
or on the lowermost sheet of the stack while the stack is in its
holder, which means makes the stack or the lowermost sheet ready
for feeding of an individual sheet therefrom.
| |||
134 | ..... By relief of pack weight: |
This subclass is indented under subclass 133. Device wherein the means acts to support a portion of the
stack above the lowermost sheet, thereby to facilitate feeding of
the lowermost sheet unburdened by the downward force of sheets thereabove.
| |||
135 | ..... By partial planar movement of bottom sheet: |
This subclass is indented under subclass 133. Device wherein the means acts on the lowermost sheet and
moves that lowermost sheet in its own plane to pre-feed or to individualize that
lowermost sheet prior to the action of the reciprocating feed member
in fully separating the sheet from the stack.
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136 | .... With means to skip or stop feed: |
This subclass is indented under subclass 131. Device provided with means to prevent the feeding of a lowermost
sheet temporarily or under control of a user of the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
137 | .... With means to restrain feed of next sheet: |
This subclass is indented under subclass 131. Device provided with means to retard the removal of the
sheet adjacent to and succeeding the foremost sheet of the stack.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
138 | ..... By adjustable exit or throat: |
This subclass is indented under subclass 137. Device wherein the sheet-retarding means is located at an
opening of a stack holder that permits the foremost sheet to be
moved out of the holder, and the extent of the opening is variable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
139 | .... By pusher reciprocating variably or non-rectilinearly: |
This subclass is indented under subclass 131. Device provided with means to effect to-and-fro movement of the sheet-engaging member, wherein the member may be adjusted relative to the means, or the means may be adjusted relative to the stack, or wherein the means or the member may be moved to-and-fro in other than a straight line. | |
140 | ..... Orbital (e.g., four-way) motion of pusher: |
This subclass is indented under subclass 139. Device wherein the means or the member may be moved in other
than a straight line.
| |||
141 | .... By pin (e.g., pointed) pusher: |
This subclass is indented under subclass 131. Device wherein the sheet-engaging member includes an element
having a pointed end that partially pierces the sheet to be fed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
142 | .... By adjustable (e.g., for sheet thickness) pusher: |
This subclass is indented under subclass 131. Device wherein the sheet-engaging member includes an element projecting toward the stack, and is provided with means to permit or cause change in the extent of projection of the element. | |
143 | .... By self-aligning (e.g., yieldable) pushers: |
This subclass is indented under subclass 131. Device provided with a plurality of sheet-engaging members,
each of which members is mounted for movement toward the stack to
the extent necessary to properly engage the bottom sheet of the
pack for feeding thereof.
| |||
144 | .... Holder adjustable to size of sheet: |
This subclass is indented under subclass 131. Device wherein the stack is held in a hopper which can be
varied in dimension to accommodate the length and width dimensions
of the sheets of the stack.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
225 | . By means to change direction of sheet travel: |
This subclass is indented under subclass 8.1. Device wherein the individual sheets move along a particular path or line of movement and provided with means to cause the individual sheets to move along a different path or line of movement. | |
226 | . With means to align sheet: |
This subclass is indented under subclass 8.1. Device provided with means for positioning or locating a
sheet with respect to some part of the device or with respect to
some part of a mechanism that will operate on the sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
227 | .. Responsive to sheet-sensor: |
This subclass is indented under subclass 226. Device provided with means to detect the presence of a sheet,
or of an index mark on said sheet, at a particular location of the
device, and further provided with means to activate the sheet-positioning
means as a result of such detection.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
228 | ... To control gripper-couple moving sheet to alignment: |
This subclass is indented under subclass 227. Device wherein the sheet-detecting means regulates the operation
of a gripper-couple to move the sheet into aligned position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
229 | .. With means to retard sheet before alignment: |
This subclass is indented under subclass 226. Device provided with first means for slowing the speed of movement of each sheet, which first means is in addition to a second means for positioning or locating each sheet, the first means acting before the second means. | |
230 | ... By member moved with sheet: |
This subclass is indented under subclass 229. Device wherein the first means is an element that moves
in the same direction as that of the sheet to be retarded, but at
a slower speed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
231 | .... Including suction retarder: |
This subclass is indented under subclass 230. Device wherein the slowing is effected by a surface that
contacts the sheet surface frictionally, the frictionally contact
being enhanced by subatmospheric pressure urging the sheet toward
the surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
232 | .. Against aligner entering hole in sheet: |
This subclass is indented under subclass 226. Device wherein each sheet to be positioned includes a slit or opening in the surface thereof, and the positioner includes an element that penetrates the slit or opening. | |
233 | .. Against rear-edge aligner: |
This subclass is indented under subclass 226. Device wherein the means for positioning sheets contacts
the trailing end of a travelling sheet.
| |||
234 | .. Against plural aligning assemblages: |
This subclass is indented under subclass 226. Device provided with more than one sheet-positioning means.
| |||
235 | ... For incremental travel against successive front-edge aligners: |
This subclass is indented under subclass 234. Device wherein the sheet moves in a particular path or line of movement, the movement being effected step-by-step due to the action of the plural positioners which act one after another on the sheet. | |
236 | ... For front and side alignment of sheet: |
This subclass is indented under subclass 234. Device wherein at least one of the positioners contacts
the "front-edge" of the sheet and at least another
of the positioners contacts a "side-edge" of the
sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
237 | .... Alignment of imbricated sheets: |
This subclass is indented under subclass 236. Device wherein the sheets to be positioned are arranged
in overlapped condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
238 | .... Including oppositely-disposed side-edge aligners: |
This subclass is indented under subclass 236. Device wherein one of the "side-edge" positioners
is adjacent one "side-edge" of the sheet and another
of the "side-edge" positioners is adjacent an
edge on the other side of the sheet, whereby the sheet is caused
to travel between the two "side-edge" positioners.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
239 | ... Plural aligners selectively used: |
This subclass is indented under subclass 234. Device wherein the operator of the device may use any of the plural positioners at will. | |
240 | ... Oppositely-disposed side-edge aligners: |
This subclass is indented under subclass 234. Device wherein one of the positioners is adjacent one "side-edge" of
the sheet and another of the positioners is adjacent and edge on
the other side of the sheet, whereby the sheet is caused to travel
between the two positioners.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
241 | .. By aligning a sheet-holder and its sheets: |
This subclass is indented under subclass 226. Device provided with first means to which the sheet is firmly
secured and by which the sheet is carried; and further provided
with means for positioning said first means, whereby the sheet carried
thereby will also be positioned.
| |||||
242 | .. Against temporarily-stopped conveyer: |
This subclass is indented under subclass 226. Device wherein the means for positioning sheets is integral
with a means for moving individual sheets, and wherein the sheet-moving means
is halted during the time the sheet is positioned relative thereto.
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243 | .. Against front-edge aligner moved in direction of sheet travel: |
This subclass is indented under subclass 226. Device wherein the individual sheets are transported along
a particular path, and provided with a sheet positioner for the "front-edge" of
a sheet, which positioner is shifted along the same path as the
sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
244 | ... By retro-moving front-edge aligner: |
This subclass is indented under subclass 243. Device wherein at least part of the shifting movement of the positioner is along the same path of movement as the sheet movement but in a direction opposite to the direction of movement of the sheet. | |
245 | .. Against front-edge aligner interposed into sheet path: |
This subclass is indented under subclass 226. Device wherein the individual sheets are transported along a particular direction of travel, and provided with a sheet positioner for the "front-edge" of a sheet, which positioner is moved so as to intersect the direction of sheet travel and intercept the travel of the sheet momentarily. | |
246 | ... Synchronized with intermittently-active conveyor-couple: |
This subclass is indented under subclass 245. Device wherein the sheet-transporting means includes a gripper-couple
that operates at recurrent intervals and in timed relation to the operation
of the "front-edge" positioner.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
247 | .... Including sheet-margin gripper: |
This subclass is indented under subclass 246. Device wherein the gripper-couple contacts an area of the sheet adjacent an edge thereof. | |
248 | .. Against aligner adjacent side edge of sheet: |
This subclass is indented under subclass 226. Device wherein the positioning means includes a guide surface
that is intended to contact one of the "side-edges" of
a traveling sheet, which guide surface is generally parallel to
the direction of movement of the sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
249 | ... By shifting aligner and gripper-couple laterally of sheet travel: |
This subclass is indented under subclass 248. Device provided with both a positioning means and a gripper-couple
mechanism that move together with a relatively small degree of movement,
the direction of movement being transverse to the direction of sheet
movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
250 | ... By means to shift sheet laterally against aligner: |
This subclass is indented under subclass 248. Device provided with means for imparting to the sheets an additional movement (i.e., additional to the direction of sheet travel), which additional movement is in a direction transverse to the direction of sheet travel and toward the positioning means and is a relatively small degree of sheet movement. | |
251 | .... By oblique conveyor: |
This subclass is indented under subclass 250. Device provided with a sheet moving means that moves successive
sheets along a resultant direction that is composed of a large vector direction
along the direction of sheet travel and a small vector direction
transverse to said direction of sheet travel toward the side-edge positioner.
| |||
252 | .... By gripper-couple pulling sheet laterally: |
This subclass is indented under subclass 250. Device wherein the means to impart additional movement to
the sheets comprises a gripper-couple mechanism that moves transverse
to the direction of sheet travel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
253 | .. With means to adjust position of aligner: |
This subclass is indented under subclass 226. Device provided with means to vary the placement of the positioning means with respect to the device. | |
254 | ... During operation of feeder: |
This subclass is indented under subclass 253. Device wherein the placement of the positioning means may
be varied while the sheet feeder continues to operate.
| |||
255 | ... With indicator of aligner position: |
This subclass is indented under subclass 253. Device further provided with means to show, by visible index markings, the relationship between the positioning means and the structure of the sheet feeder. | |
256 | . With means to interrupt feeding: |
This subclass is indented under subclass 8.1. Device provided with means to discontinue, suspend or alter
the normal flow or travel of sheets from a stack to an operation
station.
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258.01 | .. Responsive to sheet sensor: |
This subclass is indented under subclass 256. Subject matter wherein the feeding interrupting means includes
a device for detecting the absence of the sheets or presence of
a particular condition of the sheets adjacent to the feeding interrupting
means and in response thereto discontinue, suspend or alter the
normal flow or travel of the sheet from the stack to the operation
station.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
259 | ... Plural sensors: |
This subclass is indented under subclass 258. Device provided with two or more of said detecting means.
| |||
260 | .... Pneumatic sensors (e.g., to sense superposed sheets): |
This subclass is indented under subclass 259. Device wherein the detecting means utilize air pressure
or suction in their activating circuitry.
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261 | .... Laterally spaced sensors (e.g., to sense misalignment): |
This subclass is indented under subclass 259. Device wherein the detecting means are located across the
direction of travel of the sheets.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
262 | ... Excess-thickness sensor: |
This subclass is indented under subclass 258. Device wherein the detecting means detects the presence
of two or more sheets, or detects a sheet that is thicker than that
for which the detector is adjusted.
| |||
263 | .... To activate an electric circuit: |
This subclass is indented under subclass 262. Device wherein the detecting means is included in a system of wiring that carries a flow of electricity, and wherein said detecting means regulates said flow to activate the sheet-interrupter. | |
258.02 | ... Interrupts feeding upstream only: |
This subclass is indented under subclass 258.01. Subject matter wherein the detecting device in response to a particular condition detected discontinue, suspend, or alter the normal flow or travel of the sheet from the stack to the operation station only at a location ahead of the location of the detecting device. | |
258.03 | ... Single sensor with timer: |
This subclass is indented under subclass 258.01. Subject matter in combination with a timer wherein the timer is actuated by the detecting device. | |
258.04 | ... Sensor operates warning indicator: |
This subclass is indented under subclass 258.01. Subject matter comprising a means for producing a humanly perceptible signal in response to the sensing of malfunction by the detecting means. | |
258.05 | ... Mechanical linkage: |
This subclass is indented under subclass 258.01. Subject matter wherein the sheet sensor is a mechanically
driven device and comprising a means for driving the sheet sensor
and the feeding means in a timed relationship with each other.
| |||
257 | .. Manually controlled (e.g., for alternate-cycle feed): |
This subclass is indented under subclass 256. Device wherein the interruption of feeding is the direct
result of a willful act of an operative.
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264 | . By means to convey sheet (e.g., from pack to operation): |
This subclass is indented under subclass 8.1. Device provided with means for moving individual sheets
to a particular position.
| |||
265.01 | .. Responsive to sheet sensor: |
This subclass is indented under subclass 264. Subject matter comprising a device which detects the presence
or absence of the sheet at a designated location or a sheet thickness
and in response thereto continue moving the individual sheet toward
a desired location.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
265.02 | ... Plural sensors: |
This subclass is indented under subclass 265.01. Subject matter including two or more detecting devices. | |
265.03 | .... Laterally spaced sensors: |
This subclass is indented under subclass 265.02. Subject matter wherein the detecting devices are located
at different locations at a distance from each other and along the
direction of travel of the sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
265.04 | ... Thickness sensor: |
This subclass is indented under subclass 265.01. Subject matter wherein the detecting device detects combined thickness of two or more sheet layers or detects depth of the individual sheet. | |
266 | .. With intermittent movement of the sheet: |
This subclass is indented under subclass 264. Device wherein the conveyor causes the sheet to move intermittently
or step-by-step.
| |||
267 | .. On oscillating or reciprocating conveyor: |
This subclass is indented under subclass 264. Device wherein the sheet-moving means comprises mechanism
that itself moves to and fro but imparts movement to the sheet in
only one direction.
| |||
268 | ... Including gripper-couple: |
This subclass is indented under subclass 267. Device wherein the sheet-moving means comprises a gripper-couple
that contacts an area of the sheet adjacent an edge thereof.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
269 | ... Including rear-edge pusher: |
This subclass is indented under subclass 267. Device wherein the sheet-moving means comprises a member
that contacts the trailing end of the travelling sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
270 | .. With means to vary speed of conveyor sheet: |
This subclass is indented under subclass 264. Device provided with means to adjust parts of the sheet-moving means relative to each other or their supporting mechanism, or provided with means to change the speed of movement of the sheet moved thereby, or provided with means to cyclicly change the speed of movement of the sheet-moving means (i.e., change from fast to slow repetitively). | |
271 | .. By rear-edge pusher: |
This subclass is indented under subclass 264. Device wherein the sheet-moving means comprises a member
that contacts the trailing end of the travelling sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
272 | .. Between superposed conveyor couple: |
This subclass is indented under subclass 264. Device wherein the sheet-moving means comprises two elements,
each of which elements has an endless, orbitally-moving surface,
the surface of one element being opposite to and spaced from the
surface of the other element during at least a portion of their
movement and the surfaces moving in the same direction and engaging
opposite surfaces of a sheet lying therebetween during said portion
of movement.
| |||
273 | ... Having means to permit separation of couple: |
This subclass is indented under subclass 272. Device provided with structure whereby the two elements
may be moved away from one another.
| |||
274 | .... Including couple-elements resiliently urged together: |
This subclass is indented under subclass 273. Device wherein the two elements are normally biased toward one another by yieldable means and the movement away from one another is resisted by the yieldable means. | |
275 | .. On peripheral face of drum or belt: |
This subclass is indented under subclass 264. Device wherein the sheet-moving means comprises a circumferential surface of a rotating or endlessly-orbiting member, the conveyed sheet being entirely in contact with said surface. | |
276 | ... Including pneumatic means: |
This subclass is indented under subclass 275. Device wherein the contact between the sheet and the conveyor surface is caused by vacuum means or air pressure means. | |
277 | ... Including gripper-couple: |
This subclass is indented under subclass 275. Device provided with at least two elements having surfaces located adjacent to and opposite to one another, the element surfaces engaging opposed surfaces of the sheet located between the element surfaces with sufficient frictional force to move the sheet as the elements are moved by the drum or endless belt or chain on which the elements are mounted. | |
145 | . Pack holders: |
This subclass is indented under subclass 8.1. Device for supporting or holding a stack (i.e., a regularly-arranged
collection) of sheets in position for removal of individual sheets
therefrom.
| |||
146 | .. With means to vibrate pack: |
This subclass is indented under subclass 145. Device provided with mechanism for moving the holder to-and-fro
with a low amplitude of movement but a high frequency of movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
147 | .. Advancer: |
This subclass is indented under subclass 145. Device provided with means to urge a stack of sheets in
a direction such that the foremost sheet of the stack is in a position
appropriate for removal of single sheets.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
148 | ... With means to move portions of advancer unequally (e.g., for unequal-thickness sheets): |
This subclass is indented under subclass 147. Device wherein the urging means is provided with areas thereon capable of moving at a rate of speed greater than or lesser than other areas on the urging means, or said means can be adjusted to lie at different levels, thus permitting the foremost sheet to be equally presented to the sheet-removal means even though the individual sheets are thinner at one portion thereof than at another. | |
149 | ... For on-edge or imbricated sheets: |
This subclass is indented under subclass 147. Device wherein the stack holder is arranged to support the
sheets of the stack so that the individual sheets derive a substantial
amount of their support from their edges, or wherein the sheets
are arranged in overlapped array, the margin of one sheet lying
beyond the edge of an adjacent sheet relative to the direction in which
the stack is urged.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
150 | .... Supported by moving conveyor belt: |
This subclass is indented under subclass 149. Device wherein the stack rests on a surface that moves toward
the sheet-removing means.
| |||
151 | ..... For imbricated sheets : |
This subclass is indented under subclass 150. Device wherein the sheets are arranged in overlapped condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
152 | ... Control of advancer responsive to sensing of foremost sheet: |
This subclass is indented under subclass 147. Device provided with means to detect the absence or presence
of a sheet adjacent a sheet-removal zone, and further provided with
means to activate or de-activate the stack-urging means as a result
of such detection.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
153 | .... Sensor included in feed mechanism: |
This subclass is indented under subclass 152. Device which is provided with a means to remove the foremost
sheet of a stack, and wherein the detecting means is a part of said removing
means.
| |||
154 | .... Sensor activates electric or fluidic circuit: |
This subclass is indented under subclass 152. Device wherein the detecting means is included in a system
of wiring or tubing that carries a flow of electricity or fluid
respectively, and wherein said detecting means regulates said flow
to activate or deactivate the urging means.
SEE OR SEARCH CLASS:
| |||||||
155 | ..... Controlled electric or fluidic motor actuates advancer: |
This subclass is indented under subclass 154. Device wherein the flow is applied directly to motive means
that energizes the urging means.
| |||
156 | .... Controlled pawl and ratchet actuates advancer: |
This subclass is indented under subclass 152. Device wherein the stack-urging means that is activated
and deactivated by the detecting means comprises a mechanical movement
that is known in the art as "pawl and ratchet" and
is further explained in (1) Note below.
| |||
157 | ... With means to replenish pack or retract advancer platform: |
This subclass is indented under subclass 147. Device provided with means to cause or to permit a stack
of sheets to be placed or replaced in position for feeding, or provided
with a support for a stack of sheets, which support normally urges
the stack toward a sheet-removal position but is provided with means
to withdraw said support away from the sheet-removal position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
158 | .... Using plural platforms during continuous operation of feeder: |
This subclass is indented under subclass 157. Device provided with at least two supports alternately or
alternatively usable for urging a stack toward the sheet-removal
position whereby the sheet removing means may function without stopping
for replenishment of the stack.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
159 | ..... And plural drives for plural platforms: |
This subclass is indented under subclass 158. Device wherein a mechanism is provided for each of said
supports, each said mechanism being capable of moving its support
independently of the other(s).
| |||
160 | ... Urged by spring or weight: |
This subclass is indented under subclass 147. Device wherein the stack-urging means includes a yieldable resilient member, or includes a mass moved under the influence of gravity. | |
161 | .. With means to bow sheets: |
This subclass is indented under subclass 145. Device provided with means to hold the stack such that the
sheets therein are in a non-planar condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
162 | .. Holder movable relative to feed position: |
This subclass is indented under subclass 145. Device provided with means permitting the stack-holding
or stack-supporting means to be moved with respect to the sheet-removing
position.
| |||
163 | ... Holder convertible from feed to delivery: |
This subclass is indented under subclass 162. Device wherein the stack-holding means can be moved from a location at which it permits sheets to be removed from the stack to a location at which it permits sheets to be added to the stack. | |
164 | ... Holder moved parallel to plane of sheets: |
This subclass is indented under subclass 162. Device wherein the movement is along a direction coincident
with a lengthwise or widthwise dimension of a sheet of the stack.
| |||
165 | .. For feed from bottom of pack: |
This subclass is indented under subclass 145. Device wherein the holder supports the stack so as to permit
the sheets thereof to fall into position at which a sheet-removing
means engages the lowermost sheet for separation of the lowermost
sheet from the stack.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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166 | ... With means to relieve weight of pack: |
This subclass is indented under subclass 165. Device provided with means to support at least a portion
of the stack above the lowermost sheet thereof, thereby to facilitate
removal of the lowermost sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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167 | .. With means to restrain feed of next sheet: |
This subclass is indented under subclass 145. Device provided with means to retard movement of the sheet
adjacent to and succeeding the foremost sheet of the stack.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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168 | ... By sheet-impaling restrainer: |
This subclass is indented under subclass 167. Device wherein the retarding means comprises an element
that penetrates the surface of at least the foremost sheet.
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169 | ... By lateral margin or side-edge restrainer: |
This subclass is indented under subclass 167. Device wherein the means comprises elements that contact those edges or margins of the foremost sheet that are parallel to the direction in which the sheet is to be removed, and wherein the elements are spaced apart from each other a distance equal to or slightly less than the width dimension of said sheet. | |
170 | .... Corner snubber: |
This subclass is indented under subclass 169. Device wherein the elements are located at the junctions of the front edges and side edges of the foremost sheet. | |
171 | .. Holder adjustable to size of sheet: |
This subclass is indented under subclass 145. Device wherein the stack-holding means can be varied in
its dimensions to accommodate the length and width dimensions of
the sheets comprising the stack.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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278 | DELIVERING: |
This subclass is indented under the class definition. Apparatus wherein means are provided limited to removing or conveying individual sheets from a work station to a receiver, stack, or some determined position. | |
279 | . Multiple discharge: |
This subclass is indented under subclass 278. Apparatus having means to deliver the sheets to a plurality of receivers. | |
280 | .. For separating sheet from moving assemblage of sheets: |
This subclass is indented under subclass 279. Apparatus wherein the sheets to be delivered comprise a
set of two or more sheets that are being conveyed toward two or
more receivers, the apparatus being provided with means for disassociating
one of said sheets from one or more other sheets and for concurrently
delivering said one sheet to one receiver and the one or more other
sheets to one or more other receivers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
281 | ... By separating member moving in direction opposite of assemblage: |
This subclass is indented under subclass 280. Apparatus wherein the means for disassociating includes a member which moves in a direction counter to the direction in which the assemblage is being conveyed to effect relative movement between the sheet and the remainder of the assemblage. | |
282 | ... By sheet attracting means: |
This subclass is indented under subclass 280. Apparatus wherein the means for disassociating includes means capable of drawing toward itself one or more of the sheets, e.g., by magnetism, suction, etc. | |
283 | .... Pneumatic attracting means: |
This subclass is indented under subclass 282. Apparatus wherein the attracting means includes pneumatic means for causing the attraction. | |
284 | ..... Opposed pneumatic attracting means: |
This subclass is indented under subclass 283. Apparatus wherein oppositely located pneumatic attracting means are provided to act on opposite sides of the assemblage. | |
285 | ... With leading edges of sheets offset: |
This subclass is indented under subclass 280. Apparatus in which the assemblage is conveyed to disassociating means with the leading edge of one sheet in advance of the leading edge of another sheet. | |
286 | .... With means to cause offset: |
This subclass is indented under subclass 285. Apparatus in which means are provided to create the offset relation of the leading edges. | |
287 | .. Of successive sheets to plural receivers in succession: |
This subclass is indented under subclass 279. Apparatus wherein the sheets to be delivered comprise a
sequence of two or more sheets that are being conveyed one after
the other toward two or more receivers, the apparatus being provided
with means for diverting a first of said sheets into a first receiver,
a second of said sheets into a second receiver, the sequence continuing
until a sheet is diverted into the last receiver whereupon the next
sheet is diverted into the first receiver and the operation is repeated.
SEE OR SEARCH CLASS:
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288 | ... With control means to vary mode of operation: |
This subclass is indented under subclass 287. Apparatus having means to alter the normal sequence of delivery.
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289 | .... To bypass array of receivers: |
This subclass is indented under subclass 288. Apparatus wherein the control means causes the sheets to be delivered to a location other than the receivers involved in the normal sequence of delivery. | |
290 | ..... To route sheets to subsequent array of receivers: |
This subclass is indented under subclass 289. Apparatus wherein the other location is an additional group of receivers into which these sheets are successively delivered. | |
291 | ... With selective actuation of means for inverting duplex sheets: |
This subclass is indented under subclass 287. Apparatus including means to selectively deliver sheets having copy on both sides thereof in oppositely faced relation to that of sheets having copy on single sides thereof. | |
292 | ... With movable receivers or receiver portions: |
This subclass is indented under subclass 287. Apparatus in which at least a part of each receiver is movable, e.g., relative to another receiver part, the delivery location, etc. | |
293 | .... With means to increase spacing between receiver defining portions: |
This subclass is indented under subclass 292. Apparatus in which the means defining the boundaries of each receiver are relatively movable to increase the dimension of the entrance thereto. | |
294 | .... Receivers moving into registry with delivery zone: |
This subclass is indented under subclass 292. Apparatus in which the entrance of each receiver is successively moved into alignment with a stationary exit of the means delivering the sheets. | |
295 | ..... Receivers arranged in rotary array: |
This subclass is indented under subclass 294. Apparatus in which the receivers are arranged in an array rotatable about an axis to align each receiver entrance with the delivering means exit. | |
296 | ... By diverter or conveyor moving past receivers: |
This subclass is indented under subclass 287. Apparatus in which the means delivering the sheets or a means for deflecting the sheets from the conveyor is successively moved into alignment with the entrance to each receiver. | |
297 | ... By individual diverter for each receiver: |
This subclass is indented under subclass 287. Apparatus in which an individual deflector is located adjacent the entrance to each receiver to direct conveyed sheets into that receiver. | |
298 | .. With means to program discharge destination: |
This subclass is indented under subclass 279. Apparatus wherein a means is provided by which an operator
can feed precoded instructions into the machine to select the delivery sequence
or discharge destination.
SEE OR SEARCH CLASS:
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299 | .. To laterally spaced receivers: |
This subclass is indented under subclass 279. Apparatus in which sheets are delivered to side-by-side receivers. | |
300 | .. By release from conveyor at plural locations: |
This subclass is indented under subclass 279. Apparatus in which a means to convey the sheets has a means to temporarily hold the sheets and then selectively discharges the sheets at one of the plurality of receivers. | |
301 | .. Selectively to recirculating path or exit: |
This subclass is indented under subclass 279. Apparatus in which an endless loop conveying path is provided and in which a selectively operable means is provided which in one condition maintains the sheet in the endless loop and in another condition causes the sheets to exit the loop. | |
302 | .. By conveyor section movable to direct sheets along alternate paths: |
This subclass is indented under subclass 279. Apparatus wherein the sheet delivering means is a conveyor that can be shifted or has a portion that can be shifted to divert the sheet into the receiver. | |
303 | .. With movable diverter: |
This subclass is indented under subclass 279. Apparatus having movable means to deflect a sheet from a conveying path to a receiver or receivers. | |
304 | ... Bidirectionally rotating diverter roller: |
This subclass is indented under subclass 303. Apparatus in which the diverter is a revolving wheellike member which can selectively revolve in opposing directions depending upon the desired destination of the sheet. | |
305 | ... Individual diverter for each receiver: |
This subclass is indented under subclass 303. Apparatus wherein a separate diverter is located adjacent the entrance to each receiver to direct conveyed sheets into that receiver. | |
65 | . Optional face or back: |
This subclass is indented under subclass 278. Apparatus wherein means are adapted to deliver the sheet either side up. | |
66 | .. Endless conveyors to flies: |
This subclass is indented under subclass 65. Apparatus wherein the sheet is carried by endless bands to fingers which bear against one side of the sheet and rotate to turn it over. | |
67 | . Endless conveyors to curtains: |
This subclass is indented under subclass 278. Apparatus wherein the sheet is carried by endless bands and deposited on bands adapted to be rolled up and permit the sheet to fall. | |
69 | . Endless conveyors to other conveyors: |
This subclass is indented under subclass 278. Apparatus wherein the sheet is carried by endless bands to another type of carried which continues the delivery. | |
70 | .. To flies: |
This subclass is indented under subclass 69. Apparatus wherein the final conveyor is composed of fingers
which bear against one side of the sheet and rotate to turn it over.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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72 | . Rotary conveyors to flies: |
This subclass is indented under subclass 278. Apparatus wherein means are provided which move in the arc of a circle to deliver the sheets to fingers which bear against one side of the sheet and rotate to turn it over. | |
73 | . Curtains: |
This subclass is indented under subclass 278. Apparatus wherein bands are provided which receive the sheet
and are adapted to be rolled up and permit the sheet to fall.
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306 | . With transfer means between conveyor and receiver: |
This subclass is indented under subclass 278. Apparatus provided with means additional to the removing
means and a receiving means, which additional means (i.e., transfer
mechanism) is located adjacent a receiving means and which additional
means facilitates or effects the passage of individual sheets from
said removing means to said receiving means.
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307 | .. Means to strip sheets from engagement with moving conveyor: |
This subclass is indented under subclass 306. Apparatus in which the removing means comprises a moving
conveyor and in which the transfer means includes means to separate sheets
from engagement with the conveyor.
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308 | ... Stripper cyclically movable between stripping and nonstripping position: |
This subclass is indented under subclass 307. Apparatus in which the stripping means is cyclically movable, either in response to the need for removing a sheet or as a result of the stripping operation, between a position in which it is operative to separate a sheet from the conveyor and a position at which it would be incapable of initiating separation of a sheet. | |
309 | ... By air blast: |
This subclass is indented under subclass 307. Apparatus in which the means for stripping the sheet from the conveyor includes means for applying a pneumatic discharge to the sheet. | |
310 | ... By means to attract sheet from conveyor: |
This subclass is indented under subclass 307. Apparatus wherein the means for separating the sheet from the conveyor includes means capable of drawing the sheet toward itself, e.g., by suction, electrical attraction, etc. | |
311 | ... Stripper normally in contact with conveyor surface: |
This subclass is indented under subclass 307. Apparatus wherein the means for separating is retained in touching relation with the surface of the conveyor. | |
312 | ... Stripper normally in spaced relation to conveyor surface: |
This subclass is indented under subclass 307. Apparatus wherein the means for separating is normally retained
in a position away from the conveyor surface even during the separating operation.
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313 | .... With means to maintain constant spacing of movable stripper: |
This subclass is indented under subclass 312. Apparatus in which the stripper is mounted for movement
toward and away from the conveyor surface during normal operation
of the conveyor and in which means are provided to maintain a predetermined
spacing between the stripper and the conveyor.
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175 | .. Means to drape sheets over horizontal bar: |
This subclass is indented under subclass 306. Device provided with a sheet receiver that comprises a narrow support having one dimension that is coextensive with the width dimension of the individual received sheets and another dimension that is very short compared to the length dimension of said sheets whereby one portion of each received sheet will hang generally vertically on one side of the support and another portion of each received sheet will hang generally vertically on the other side of the support, in which device the transfer mechanism comprises means to cause each sheet to be deposited on said support with the sheet portions hanging as described. | |
176 | .. Responsive to delivered sheet: |
This subclass is indented under subclass 306. Device provided with means to detect the presence of a sheet
moving toward the receiving means, and further provided with means
to activate the transfer means as a result of such detection.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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177 | .. Means to push sheets out of edgewise into broadside movement (e.g., packer): |
This subclass is indented under subclass 306. Device wherein the removing means conveys a succession of
individual sheets along a direction parallel to their surfaces,
and wherein said transfer mechanism urges each of said sheets in succession
to be moved in a direction perpendicular to its surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
178 | ... Rotating packer: |
This subclass is indented under subclass 177. Device wherein the transfer mechanism includes a member
turning about an axis, at least a portion of the turning member
contacting at least a portion of the surface of each sheet.
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179 | .... Screw or helix: |
This subclass is indented under subclass 178. Device wherein the member includes a surface that simultaneously
winds around said axis and progresses axially along said axis.
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180 | ... By reciprocating or oscillating packer: |
This subclass is indented under subclass 177. Device wherein the transfer mechanism includes a member
moving to-and-fro in a direction perpendicular to the surface of
a sheet that is contacted by the member.
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181 | .... Packing sheets on-edge into receiver: |
This subclass is indented under subclass 180. Device wherein the member pushes the individual sheets into a stackholder that is arranged to support the sheets thereof so that said sheets derive a substantial amount of their support from their edges. | |
182 | .. Means to retard sheets: |
This subclass is indented under subclass 306. Device wherein the transfer mechanism acts to restrain or
hold back the forward movement of each of the succession of sheets
that are being conveyed, the action of the transfer mechanism being
timed to occur on each successive sheet just as that sheet is at
the receiver.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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183 | ... By suction retarder: |
This subclass is indented under subclass 182. Device wherein the restraint or hold back is effected by a surface or member moving at a speed slower than that of each of the sheets and contacting the sheet surface frictionally, the frictional contact being enhanced by subatmospheric pressure urging the sheet toward the surface or member. | |
184 | .. Means to change orientation or direction of sheets during delivery: |
This subclass is indented under subclass 306. Device wherein the transfer mechanism acts to alter either the direction in which the surface of each successive sheet faces or the direction in which each successive sheet moves, the alteration occurring just before or while the sheet is moved into the receiver. | |
185 | ... Orientation-changing means: |
This subclass is indented under subclass 184. Device wherein the transfer mechanism acts to alter the direction in which the surface of each successive sheet faces. | |
186 | .... Sheet inverting means: |
This subclass is indented under subclass 185. Device wherein the transfer means alters the orientation
of each successive sheet from an orientation in which a particular
surface is facing in a particular direction to an orientation in which
said surface is facing in a direction opposite to said direction.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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187 | .... By rotating circumferential-pocket members: |
This subclass is indented under subclass 185. Device wherein the transfer mechanism includes a turning
means provided with one or more receptacles for the temporary holding
of successive sheets, each receptacle lying in or adjacent a peripheral
portion of the turning means.
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188 | .. Means to bow sheets during delivery: |
This subclass is indented under subclass 306. Device wherein the transfer mechanism causes the successive
sheets to be curved or corrugated temporarily, thereby imparting
a temporary stiffness to the sheets that facilitates forward propulsion
of the sheets into the receiver.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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189 | .. Means temporarily interposed between conveyor and receiver: |
This subclass is indented under subclass 306. Device wherein the transfer mechanism includes means that
may be placed in the path of movement of the successive sheets for
a short time, or may be removed from such path, said means being
located at the discharge end of the conveying means and just before
the receiving means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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190 | ... Transversely-disposed, gapped sheet-supports on endless carrier: |
This subclass is indented under subclass 189. Device wherein the transfer mechanism includes one or more
platforms extending across and moving along with the direction of movement
of the succession of sheets, while supporting said sheets the plat-form(s)
being mounted for such movement in a closed-loop orbit and being
spaced one trailing end from a succeeding leading end to permit
successive sheets to pass through the space between said ends.
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191 | ... Endless belt on reciprocating carrier: |
This subclass is indented under subclass 189. Device wherein the transfer mechanism includes a closed-loop
band encircling two or more pulleys mounted on a support that moves to-and-fro
between a first position where the bend extends under the discharge
end of the conveyor of successive sheets and a second position where
the band extends over the receiver.
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192 | ... Counter-rotating supports for lateral margins: |
This subclass is indented under subclass 189. Device wherein the transfer mechanism includes two means
disposed to receive one or more successive sheets and temporarily
hold such sheet (s) by contacting the two side borders of the sheet
(s) that extend in a direction parallel to the direction of travel
thereof, which means releases the sheet (s) so held by turning one
of the means in one rotational direction and simultaneously turning
the other of the means in the opposite rotational direction.
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193 | . By electrostatic or magnetic conveyor: |
This subclass is indented under subclass 278. Device wherein the removing means includes mechanism to
generate static electricity or lines of magnetic flux, which mechanism
cooperates with the removing means to facilitate delivery of a succession
of individual sheets to a receiver.
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194 | . By pneumatic conveyor: |
This subclass is indented under subclass 278. Device wherein the removing means includes a gaseous fluid
medium under subatmospheric or above-atmospheric pressure.
SEE OR SEARCH CLASS:
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195 | .. Using pressurized gas: |
This subclass is indented under subclass 194. Device wherein the removing means includes a gaseous fluid
medium under above-atmospheric pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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196 | .. Unidirectionally-moving suction member or surface: |
This subclass is indented under subclass 194. Device wherein the removing means includes an element that
turns continually in the same direction, through the surface of
which element vacuum is applied to engage and deliver a sheet to
a receiver.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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197 | ... Including endless-belt conveyor and suction chamber: |
This subclass is indented under subclass 196. Device wherein the surface is that of a closed-loop band which encircles two or more pulleys and moves adjacent a vacuum box that connects with a source of the vacuum that is applied to the surface of the band. | |
198 | . By endless conveyor: |
This subclass is indented under subclass 278. Device wherein the removing means includes a closed-loop belt or chain unidirectionally orbiting about two or more pulleys or sprockets. | |
199 | .. Operation controlled by delivered sheet: |
This subclass is indented under subclass 198. Device provided with means to detect the presence of a sheet
moving toward the receiving means, and further provided with means
to activate or deactivate the orbiting closed-loop belt or chain.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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200 | .. With delivery end movably relative to pack receiver: |
This subclass is indented under subclass 198. Device wherein that portion of the endless conveyor closest
to the receiving means may be displaced with relation to the receiving
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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201 | ... Moving away from increasing delivered pack: |
This subclass is indented under subclass 200. Device wherein the endless conveyor delivers successive sheets into a stack of sheets that grows in size of stack as a result of such delivery, and provided with means to move the delivery end of said conveyor in a direction that will permit and not interfere with such growth. | |
202 | .. With means to vary speed of sheets on conveyor(s): |
This subclass is indented under subclass 198. Device provided with one conveyor or a succession of conveyors
for removing a succession of sheets to a receiver, and further provided
with means to change the rate of movement of the succession of sheets
moving thereon.
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203 | ... By cyclicly varying conveyor speed: |
This subclass is indented under subclass 202. Device provided with means whereby said conveyor or at least
one of the conveyors is caused to increase its speed and decrease
its speed in regular sequence.
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204 | .. Suspension gripper: |
This subclass is indented under subclass 198. Device provided with means for frictionally engaging opposite
surfaces of each successive sheet adjacent at least one of the margins thereof,
said means being mounted on a closed-loop belt or chain.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
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205 | ... For lateral margins of conveyed sheet: |
This subclass is indented under subclass 204. Device wherein said means engage two of said margins of each successive sheet, the engaged margins being those which extend in the direction of movement of the sheets. | |
206 | ... With means to adjust gripper: |
This subclass is indented under subclass 204. Device wherein said means may be varied in operation, position or condition. | |
314 | . Rotary conveyor: |
This subclass is indented under subclass 278. Apparatus in which the removing means includes means traveling in the arc of a circle for delivering the sheets. | |
315 | .. With circumferential pocket members: |
This subclass is indented under subclass 314. Apparatus in which the means moving in the arc of a circle includes one or more receptacles for the temporary holding of successive sheets, each receptacle lying in or adjacent to a peripheral portion of the means moving in the arc of a circle. | |
81 | .. Traveling: |
This subclass is indented under subclass 314. Apparatus wherein the conveyor has a bodily movement in addition to the rotary movement. | |
82 | .. Suspension gripper: |
This subclass is indented under subclass 314. Apparatus wherein the rotary conveyor has means for carrying the sheet suspended from the edge. | |
83 | .. Flies: |
This subclass is indented under subclass 314. Apparatus wherein means are adapted to bear against one
side of the sheet and rotate to turn it over.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
84 | . Reciprocating conveyors: |
This subclass is indented under subclass 278. Apparatus wherein the delivering means moves to and fro in a rectilinear path. | |
85 | .. Suspension gripper: |
This subclass is indented under subclass 84. Apparatus wherein the conveyors are provided with means for carrying the sheet suspended from one edge. | |
207 | . To receiver for pack of sheets: |
This subclass is indented under subclass 278. Device provided with means to hold the delivered sheets in a stacked, (that is, regularly aligned) array. | |
208 | .. With means to discharge static electricity: |
This subclass is indented under subclass 207. Device provided with means to remove, or permit the removal of, any electrical charge that may have accumulated on the delivered sheets prior to the stacking thereof. | |
209 | .. With means to bow sheets: |
This subclass is indented under subclass 207. Device provided with means to cause the sheets to be curved
into a nonplanar condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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210 | .. With means to vibrate receiver: |
This subclass is indented under subclass 207. Device provided with means to move the holder to-and-fro
with a low amplitude of movement but a high frequency of movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
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211 | .. With air cushion between sheet and pack: |
This subclass is indented under subclass 207. Device wherein sheets are successively delivered onto the
top of a stack of delivered sheets, and wherein a layer of ambient
atmosphere is caused to form below the sheet last delivered and
above the top of the stack, which layer of air permits the last
delivered sheet to float down onto the top of the stack.
| |||
212 | .. For receiving sheets from below the pack: |
This subclass is indented under subclass 207. Device wherein the sheets are delivered to the holder from
a location underneath the holder and the stack is formed by moving
the sheets upwardly into the holder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
213 | .. With movable sheet-surface support: |
This subclass is indented under subclass 207. Device provided with a platform or backing for holding a
stack of sheets, which backing extends in the length and width dimension
of a sheet and is contiguous with the sheet adjacent thereto, and
which backing is capable of being moved, thereby moving or permitting
movement of, the stack held thereby.
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214 | ... Receding from delivery zone (e.g., retractor): |
This subclass is indented under subclass 213. Device wherein the movement of the backing is in a direction away from the source of the delivered sheets. | |
215 | .... Responsive to increase: |
This subclass is indented under subclass 214. Device provided with means to detect growth in the accumulation
of the stack of sheets on or held by the platform or backing, and
further provided with means for causing movement of the platform
or backing away from the source of delivered sheets as a result
of such detection.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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216 | .... Conveyor-receiver for imbricated sheets: |
This subclass is indented under subclass 214. Device wherein the direction of movement of the backing
is simultaneously parallel to the surface of the sheet adjacent
thereto and away from the delivered sheets, whereby the sheets are
arranged in overlapped array, the edge of a previously delivered
sheet lying beyond the edge of a next delivered sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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217 | .... Lowering as pack-height increases: |
This subclass is indented under subclass 213. Device wherein the direction of movement of the backing
or platform is vertical and downward and such movement occurs in
synchronism with the delivery of sheets thereto, whereby the platform
recedes in relation to the growth of the stack of sheets accumulating thereon.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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218 | ..... With auxiliary support for part of pile: |
This subclass is indented under subclass 217. Device further provided with at least one additional platform
that is usable for temporary accumulation of delivered sheets thereto.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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219 | ..... Spring-loaded support: |
This subclass is indented under subclass 217. Device wherein the platform is urged upwardly under the influence of a yieldable member, whereby the weight of the growing stack of sheets is resisted by the yieldable member. | |
220 | .. With movable pack-limiting member(s) (e.g., hold-down): |
This subclass is indented under subclass 207. Device provided with means that confine the individual sheets
to cause them to be formed into a stack, or align the sheets within
a stack receiver, or direct the sheets into the receiver, or ensure
that the sheets will remain within the receiver after being directed
thereto, said means being capable of movement.
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221 | ... And means to move members cyclicly against sheet edges (e.g., jogger): |
This subclass is indented under subclass 220. Device further provided with linkage powered from a source
other than the kinetic energy of the moving sheet itself, which
linkage effects periodic movement of the confining or aligning means
against peripheral portions of the delivered sheets.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
222 | .... And yieldable connection in moving means: |
This subclass is indented under subclass 221. Device wherein the linkage includes a resilient element, whereby one portion of the linkage may move whereas another portion of the linkage does not move. | |
223 | ... Members adjustable to sheet size: |
This subclass is indented under subclass 220. Device wherein the confining means may be moved to vary
the dimensions thereof to accommodate the length and width dimensions of
the sheets comprising the stack.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
224 | .... Sheet-impact bumper member: |
This subclass is indented under subclass 223. Device wherein the confining means is further movable under
the influence of the kinetic energy of the moving sheet delivered
thereto, thereby to absorb the energy of the sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
900 | STRIPPER: |
Device which separate a sheet from a moving conveyor. | |
901 | MAGNETIC OPERATION: |
Device which handle sheet material and which use a magnetic force in their operation. | |
902 | REVERSE DIRECTION OF SHEET MOVEMENT: |
Device which change the direction of sheet movement so that the leading edge of the sheet becomes the trailing edge of the sheet. | |
903 | TRAVELING WICKET (FOR STACK ON EDGE): |
Device which convey sheets by means of rotating or orbiting racks that support the stack on edge. | |
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
This subclass has no definition. | |