This class is the locus for apparatus (i.e., elevator) for shifting
a discrete load, in its entirety, from an entry level to a vertically
spaced exit level along a fixed path when the apparatus includes
(a) a reciprocating, load-underlying, support surface (e.g., car),
(b) rigid or semirigid means for contacting and limiting the travel
of the load support surface to the fixed vertical path, and (c) either
(1) drive-means* (e.g., fluid motor, manually operated
linkage) for transmitting to the load support surface the force
necessary to shift the load between the levels or (2) motion resisting
means (e.g., counterweight) for slowing the travel of the load supporting surface
when moving from a higher load entry level to a lower load exit
level.
In addition, this class is the locus for a fixedly mounted apparatus
(i.e., vehicle lift) which elevates a discrete vehicle, in its entirety,
from a lower entrance and exit level to a significantly higher upper
level where the vehicle is intended to be repaired or inspected
when the apparatus includes both (a) a vertically reciprocating, vehicle-underlying
support surface and (b) drive-means* for transmitting to
the support surface the force necessary for it to elevate the vehicle.
Further, this class is the locus for a mobile wheeled or tracked
apparatus (e.g., forklift) which travels to, picks up, and shifts
a discrete load, in its entirety, from one level to another vertically
spaced level and then carries the load, while still fully supported
thereby, a short horizontal distance (e.g., length of a warehouse)
to a load discharge point; when the apparatus includes (a) a vertically
reciprocating load support surface (e.g., forks) which travels only
along a confined linear path and (b) drive-means* for transmitting
to the support surface the force necessary for it to elevate the
load.
This class also provides for a subcombination of one of the
above types of apparatus when (a) no specific locus for the subcombination
exists in another class and (b) the subcombination is limited to
use with the above types of apparatus by a structural modification.
Finally, this class also provides for an ancillary device (e.g.,
call registration system) which is (a) used exclusively with and
(b) has its operation either influencing or being influenced by
the operation of one of the above types of apparatus when no particular
locus exists for the device in another class.
SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
Elevating apparatus otherwise proper for this class which
is either (a) specially modified for use with or within another
disparate apparatus (e.g., machine tool, furnace), (b) in combination
with structure for treating the discrete load or vehicle in some
manner (e.g., work cutting) or (c) claimed in combination with specific details
of a distinct disparate apparatus (e.g., endless feeding belt) or
distinct structure (e.g., rack) is classified in other classes (e.g.,
Class 414, subclass 564, Class 414, subclasses 592+).
Elevating apparatus which is constructed in such a manner
that the support surface for the load or vehicle is inherently self-charged
or self-discharged during movement along its fixed generally vertical
path of travel is excluded from this class and is classified in
other handling classes (e.g., Class 414, subclasses 595+).
An apparatus including a load or vehicle support surface which
travels in a circuit around a fixed pathway having both a vertical
and a horizontal segment is excluded from this class and is found
in other handling classes (e.g., Class 198, subclasses 321+).
The load or vehicle support surface of an apparatus proper
for this class is intended to support the load or vehicle only for
a short period of time during handling and is not intended for either
(a) supporting an article in a nonuse storage location (e.g., Class
312, subclass 247 vertically moveable cabinet) (b) supporting a
useable machine or tool (e.g., Class 248, subclasses 646+ movable
machinery support) or (c) moving one portion of a machine or article
relative to another portion thereof (e.g., an operator). In the
situation when a vehicle is supported, the surface may also support
the vehicle during the time necessary for its repair or inspection.
The line between an elevator proper for this class (187) and
a jack proper for Class 254, Implements or Apparatus for Applying
Pushing or Pulling Force is as follows:
(A) Class 187 provides for elevating apparatus which (1) lifts
the entire load a significant distance, (2) is either stationary,
nonmanually transported as a unit between use locations, or supported,
at least in part, by a building it services in use, and (3) has
a load supporting surface intended to be guided along or confined
to (e.g., located within a shaft) a linear path; and
(B) Class 254 provides for "jacking" apparatus
which either (1) elevates only one portion of the load, (2) is manually
pulled as an assembled self-supporting unit between use locations
or carried and is also positioned under the load, or (3) is stationary
mounted at a particular location and is capable of lifting the load
only a relatively short distance (e.g., far less than the distance between
the floor and ceiling of a room).
The discrete load proper for this class (187) is either (a) an
animal, (b) an article, (c) a unitized bulk material (e.g., cotton
bail, ice block) or (d) a group or mix thereof moved as a unit between
levels.
Static Structures (e.g., Buildings),
subclass 30 for an elevator combined with building structure
other than that necessary to support or guide the elevator.
Railways,
subclasses 35+ for structure shifting railroad vehicles through
use of a turntable and subclasses 127+ for an elevator
having its operation interconnected with that of an elevated railway.
Horizontally Supported Planar Surfaces,
subclasses 20+ for a power driven surface and subclasses 144.11+ for
a vertically adjustable surface which supports a load (e.g., lowers
as articles are being stacked) but does not transport it as a unit
between vertical locations.
Fire Escape, Ladder, or Scaffold,
subclasses 141+ for a platform having elevating or lowering means
which is used to either escape a fire or in the maintenance of a
building.
Merchandising,
subclasses 22+ for an elevator or drop used to service a store
and subclasses 47 and 51 for an elevator used in servicing a dining
room.
Traversing Hoists,
subclass 319 for a traveling bridge-type crane having a load
engager (other than a platform, cage, or similar device) which is
mounted for guided vertical movement toward and away from the bridge.
Material or Article Handling, as following subclasses: 246, 247+, 249+,
260, and 264 for a vertically moving vehicle carrier, which carrier is
adapted for charging or discharging a facility for the parking of
wheeled vehicles;
subclass 281 for a means for charging or discharging plural,
static structures, and wherein the means includes a portable elevating
device having a load sustaining surface; subclasses 364+ for the
combination of a pivotably or tiltably movable structure for supporting
a wheeled, load-transporting type vehicle and reorienting the vehicle
into a load-releasing attitude, and the vehicle being unloaded thereby,
and wherein the axis of pivot or tilt of the structure is vertically
shiftable (e.g., by means in the nature of an elevator or hoist);
subclasses 422+ for a receptacle emptying device of an
elevator type; subclass 427 for a wheel and wheel type article handler
and transporter having a wheel engaging means of an elevator type;
subclass 441 for a motion responsive load handler and transporter
wherein the handler is operated by a ground-engaging wheel and is
guided for rectilinear movement in a vertical or inclined path; subclasses
458+ for a vehicle having load handling means in the nature
of spaced, shelf-like load engaging portions which portions engage the
load from opposite sides and elevate it for transport; subclasses
460+ for a vehicle which straddles a load and elevates
it onto load supporting structure; subclass 471 for a self-loading
or unloading vehicle having a load receiving portion which is pivotable
relative to the horizontal, and wherein means is provided for also
raising or lowering the portion and its axis of pivot; subclasses
495+ for a self-loading or unloading vehicle having a load
receiving portion which is movable in a vertical or inclined path;
subclasses 540+ for a self-loading or unloading vehicle
having a load handling means which raises or lowers a load in a path
which includes vertical rectilinear movement; subclass 564 for a
combination of carriers, at least one of which is an elevator or
hoist and another is an endless or rotary carrier; subclasses 589+ for
a load support which moves linearly in a vertical direction and
has additional movement for aligning and mounting its load; and
subclasses 592+ for the combination of an elevator or hoist
and a loading or unloading means therefor.
Amusement Devices, appropriate subclasses, particularly
subclass 2 , for an amusement device which lifts an individual
during a ride.
SECTION IV - GLOSSARY
Repetitive terms used in the titles or definitions
of the class definition and its indented subclasses in a special or
limited sense are set forth below with the meaning each is to have.
For economy of space, an asterisk (*) following a word
located in the definition or notes indicates that reference should
be made to this Glossary for the specific meaning thereof. In addition,
an asterisk (*) following a hyphenated phrase (e.g., drive-means*) indicates
that the entire hyphenated phrase has been defined in this Glossary.
CABLE*
A flaccid, elongated, flexible element which can transmit
force only when under tension (e.g.,
rope, wire, chain).
CONTROL*
Means for regulating the operation of a separate and
distinct force generating, transmitting, or retarding device (e.g.,
motor, drive-means*, brake) which moves or stops the movement
of a relatively movable component of apparatus proper for this class
(e.g., elevator car), and includes both (a) an information input
component (e.g., sensor, information storage means, manual push
button) and (b) a distinct component which effects the operation of
the force generating, transmitting, or retarding device in a particular
manner based on the input information.
DRIVE-MEANS*
Means for supplying a motive force to an element to be moved
which includes both force generating means (e.g., motor) and structural
linkage (e.g., gears) needed to transmit the force from the generating
means to the element.
LANDING*
An in situ floor within a structure (e.g., building)
located adjacent to an elevator shaft* and to or from which
a load (e.g., passenger, cargo) transfers during the charging or
discharging of the load-underlying support surface of an elevator.
SHAFT*
A long, narrow, in situ passageway within a structure (e.g.,
building, ship, mine) which defines the fixed path between the vertically
spaced load entrance and exit levels traveled by the load-underlying
support surface of an elevator.
STAIRWAY ASSIST FOR INDIVIDUAL OR MINOR BARRIER (E.G.,
CURB) LIFT FOR IMPAIRED INDIVIDUAL:
This subclass is indented under the class definition. Subject matter either (a) intended to carry only a single
person and located on or very near to a flight of stairs for use
by the person as (1) an alternative to or (2) in conjunction with the
stairs or (b) located adjacent a small obstruction (e.g., loading
dock) which would be no serious obstacle to a healthy person and having
a specific feature (e.g., modified access, wheelchair guides) adapting
it to carry a person having some physical problem which prohibits or
restricts the ability of the person to travel past the small obstruction.
This subclass is indented under subclass 200. Subject matter which is located near a flight of stairs
and wherein the rigid or semirigid means for limiting the path of
travel of its load-underlying support surface restricts the path
to a direction parallel to the incline of the flight of stairs.
This subclass is indented under subclass 201. Subject matter having a particular structural aspect (e.g.,
operator) of braking or catching means mounted on or engaging the
load-underlying support surface and selectively holding the load-underlying
support surface at different locations along its path of travel
detailed.
STATIONARY LIFT FOR ROADWAY VEHICLE OR REQUIRED COMPONENT THEREOF:
This subclass is indented under the class definition. Subject matter consisting of fixedly mounted apparatus,
or a specified component thereof (i.e., drive-means*, vehicle-underlying support
surface component) not provided for in another class, for elevating
a discrete wheeled highway vehicle, in its entirety, from a lower entrance
and exit level to a significantly higher upper level where the vehicle
is intended to be repaired or inspected.
(1)
Note. The line between a vehicle lift proper for this subclass
and its indented subclasses and one proper for Class 254, Implements
or Apparatus for Applying Pushing or Pulling Force is as follows:
This subclass and its indents provide for vehicle elevating
apparatus which (1) has a vehicle supporting surface entirely separable from
the vehicle, (2) lifts the entire vehicle a significant distance
along a generally rectilinear path, (3) maintains its vehicle underlying support
surface in a substantially level attitude relative to ground, and
(4) is stationarily mounted at a particular location; and
Class 254 provides for vehicle elevating apparatus otherwise proper
therefor which either (1) elevates only one portion of the vehicle
at a time, (2) is manually carried or moved as an assembled, self-supporting
unit between use locations and positioned under the vehicle, (3)
lifts the entire vehicle only a relatively short distance (e.g.,
a small lever arm lifting less than the height of the vehicle),
or (4) is attached to and travels with the vehicle.
Implements or Apparatus for Applying Pushing or
Pulling Force,
subclasses 2+ , 88, 89+, 94, 418+, and digest
9 for apparatus for lifting an entire vehicle a short distance.
Material or Article Handling,
subclasses 233+ for a parking facility including one or more movable
sites (i.e., a vehicle is transported by and also stored on the
load support surface), and subclass 678 for a device having a support
for a boat or land vehicle and means to lift and tilt the support.
This subclass is indented under subclass 203. Subject matter provided with means having its own drive-means* and
mounted on, or adjacent to and traveling with, the vehicle-underlying support
surface of the elevating apparatus for lifting one portion of a
vehicle while the vehicle is located on the support surface.
for axle or undercarriage type support structure
which normally travels with distinct wheel supporting trackways, but
is selectively sustained by a prop at an elevated position to remove
the vehicle from the trackways when the trackways are lowered relative thereto.
This subclass is indented under subclass 203. Subject matter provided with both a hole in the floor surrounding
the elevating apparatus which allows the vehicle-underlying support surface
to be flush with the floor when not elevated and means which extends
over at least a portion of the hole when the vehicle-underlying
support surface is elevated to prevent an object from falling into
the hole.
This subclass is indented under subclass 203. Subject matter provided with an elongated rigid member which
(a) is attached to and extends from the elevated vehicle-underlying support
surface to the floor, (b) is distinct from the drive-means* for
the support surface, and (c) holds the support surface in its elevated position
if the drive-means* therefor fails by pushing against the
surface of the floor or coacting with means for stopping (e.g.,
a stationary catch) its motion.
This subclass is indented under subclass 203. Subject matter having a catch or brake which engages either
(a) a portion of the drive-means* directly supporting (e.g.,
piston of fluid ram) the vehicle-underlying support surface or (b)
travel directing structure (e.g., guide shoe) for the vehicle-underlying
support surface to retain at a particular position, or slow the
travel of, the vehicle-underlying support surface.
This subclass is indented under subclass 207. Subject matter wherein the vehicle-underlying support surface
is retained at a particular position by a catch engaging a corresponding
surface configuration (e.g., tooth) on an elongated member and wherein
the catch, when not engaged, moves vertically relative to the elongated
member when the vehicle-underlying support surface is elevated or
lowered.
This subclass is indented under subclass 203. Subject matter provided with means (e.g., limit switch)
which turns off or disconnects the vehicle-underlying support surface
drive-means* to protect the user of, or vehicle on, the
vehicle elevating apparatus when the apparatus is either improperly
used (e.g., overloaded) or a potentially injurious condition exists.
This subclass is indented under subclass 203. Subject matter having a particular structural aspect of
drive-means* (e.g., cable drum) for transmitting to the
vehicle-underlying support surface the force necessary to shift
the vehicle between its upper and lower levels detailed.
This subclass is indented under subclass 210. Drive-means* including two distinct elongated members
which are (a) located between the vehicle-underlying support surface
and a supporting floor and (b) mounted in a manner allowing them
to each swing vertically in conjunction with each other and to hold
up the vehicle while restricting its movement to a generally linear
vertical path.
This subclass is indented under subclass 210. Drive-means* having as its source of power either
the motor, drive train, or road wheel of a vehicle located on the
vehicle-underlying support surface of the apparatus.
Implements or Apparatus for Applying Pushing or
Pulling Force,
subclasses 91 , 94, and 422 and digest 9 for vehicle lifting apparatus
powered by either the impact of, the motion of, or a driven part
of a supported vehicle.
This subclass is indented under subclass 210. Drive-means* including two distinct elongated structures
positioned on different sides of a common vehicle-underlying support
surface and directly across from each other which transmit elevating
force to, and together hold up, the vehicle-underlying support surface.
This subclass is indented under subclass 213. Drive-means* wherein one of the force transmitting
elongated structures includes both (a) an element attached to the
vehicle-underlying support surface which has an aperture therein with
an internally facing threaded tooth and (b) a cylindrical rod passing
through the aperture which has a tooth on its outer surface threaded around
the longitudinal axis of the rod, mating with the tooth of the aperture
element, and rotating relative thereto when the vehicle-underlying
support surface is elevated or lowered.
This subclass is indented under subclass 210. Drive-means* including a vertically extending, fluid
powered mechanism which (a) is attached to the vehicle-underlying
support surface and (b) has two concentric, telescoping components
bearing a portion of the weight of the vehicle-underlying support
surface when it travels vertically.
(1)
Note. The line between a stationary vehicle lift drive proper
for this class (187) and a linear fluid motor and its control proper
for Class 91, Motors: Expansible Chamber Type, or a linear fluid
motor proper for Class 92, Expansible Chamber Devices, is as follows:
(1)
Class 187 provides for lifting apparatus which claims more
than a named stationary lift for a vehicle moving a vehicle in its
entirety between vertically spaced levels by a linear fluid motor
and additional structure which is not necessary to the internal
fluid drive of the linear fluid motor (e.g., external load support
guide structure, particular load-underlying support surface structure, particular
lifting apparatus controls (e.g., rope controls)),
(2)
Class 91 provides for linear fluid motors and their controls
moving a load between spaced positions and claiming a named load
supporting surface, and
(3)
Class 92 provides for linear fluid motors moving a load between
spaced positions and claiming a named load supporting surface.
Implements or Apparatus for Applying Pushing or
Pulling Force,
subclass 93 for fluid pressure powered apparatus for lifting
a portion of a vehicle a short distance.
This subclass is indented under subclass 203. Subject matter having a particular aspect of the vehicle-underlying
support surface of the apparatus detailed.
This subclass is indented under subclass 216. Vehicle-underlying support surface provided with structure
(e.g., chock) shiftable from a position where it does not interfere
with the movement of the vehicle wheel onto the support surface
to a position where it contacts the wheel and prevents movement
of the vehicle off of the support surface in one direction.
This subclass is indented under subclass 216. Vehicle-underlying support surface including a component
or section particularly arranged or contoured to contact the axle
or supporting framework of the vehicle and transmit lifting force
thereto.
This subclass is indented under subclass 218. Vehicle-underlying support surface having an attached contact
component or section shiftable from one location to another to contact
either (a) different portions of the supporting framework or axle
of the same vehicle or (b) the axles or supporting frameworks of
vehicles having different configurations.
This subclass is indented under subclass 218. Vehicle-underlying support surface having at least one attached
contact component or section which shifts from (a) a location where
it does not contact the vehicle axle or framework when the vehicle
elevating apparatus is in operation to (b) another location where
it will contact the vehicle axle or framework when the vehicle elevating
apparatus is in operation.
This subclass is indented under subclass 216. Vehicle-underlying support surface including a component
which (a) is designed to direct a wheel of a vehicle driving onto
the support surface and (b) is either (1) located where it does not
contact and direct a wheel every time the vehicle elevating apparatus
is in operation (e.g., one of plural alternatively useable trackways)
or (2) shiftable toward or away from a similar wheel directing component
during different vehicle elevating operations for vehicles having
a different gauge or wheel arrangement.
INDUSTRIAL LIFT TRUCK OR REQUIRED COMPONENT THEREOF (E.G.,
FORKLIFT):
This subclass is indented under the class definition. Subject matter consisting of a mobile wheeled or tracked
apparatus (e.g., forklift) or a specified component thereof (i.e.,
drive-means*, load support surface, guides for surface)
not provided for in another class, which travels to, picks up, and
shifts a discrete load, in its entirety, from one level to another
vertically spaced level and then carries the load while still fully
supported on the surface a short horizontal distance (e.g., the
length of a warehouse) to a load discharge point.
(1)
Note. The line between a mobile lift truck proper for this
and the indented subclasses and one proper for Class 254, Implements
or Apparatus for Applying Pushing or Pulling Force is as follows: (a)
This subclass and its indents provide for a mobile wheeled or track
guided truck which both (1) selfloads, supports, and travels with
a load between horizontally spaced locations and (2) is capable of
vertically moving this load along a fixed path for a significant
distance and unloading it at a different, vertically spaced level;
and (b) Class 254 provides for a mobile lift truck which either
(1) elevates only one portion of the load or (2) lifts the entire
load only a relatively short distance (e.g., less than the height of
the load) and then returns it to its original level when unloading.
(2)
Note. Wheeled or tracked apparatus otherwise proper for this
and the indented subclasses is excluded therefrom when the load
support surface is mounted for movement in an additional direction (e.g.,
tilted) and is found in Class 414, subclasses 629, 631+,
641+, and 663+ even when the movement is not utilized to
load or unload the surface (e.g., merely stabilizes the load).
Material or Article Handling,
subclasses 629 , 631+, 641+, 663+, and 914
for portable elevators having an additional handling feature (e.g.,
tilting vertical guide).
This subclass is indented under subclass 222. Mobile wheeled or tracked apparatus having a control* which
determines when an unsafe operating condition has occurred and responds to
the condition by regulating or stopping the operation of the apparatus
or load support surface.
Data Processing: Vehicles, Navigation, and Relative
Location,
subclass 50 for operation controlling means, per se, of this
type for a forklift when the algorithm utilized is not peculiar solely
to use with a forklift.
This subclass is indented under subclass 222. Mobile wheeled or tracked apparatus having a control* for
regulating the operation of the drive-means* for the load
support surface of the apparatus.
Data Processing: Vehicles, Navigation, and Relative
Location,
subclass 50 for an operation controlling means for a forklift
utilizing an algorithm not peculiar solely to use with a forklift.
This subclass is indented under subclass 222. Mobile wheeled or tracked apparatus provided with rigid,
vertically extending, elongated structure for limiting the load
support surface to travel along its confined linear path, the structure
having two elongated vertical segments attached to one another in
a manner allowing one segment of the elongated structure to bend
over and lie adjacent to the other segment.
This subclass is indented under subclass 222. Mobile wheeled or tracked apparatus provided with rigid,
vertically extending, elongated structure for limiting the load
support surface to travel along its confined linear path, the structure
having two elongated vertical sections attached to one another in
a manner allowing one section to move vertically relative to the
other section to lengthen or shorten the height of the elongated
structure.
This subclass is indented under subclass 226. Mobile wheeled or tracked apparatus in which either (a)
the structure for confining the load support surface to a linear
path, (b) the drive-means* for the movable section thereof,
or (c) the drive-means* for the load support surface is positioned,
relative to a work station for the human operator of the apparatus,
in a manner designed to avoid obstructing the view of the operator
when using the apparatus.
This subclass is indented under subclass 226. Mobile wheeled or tracked apparatus also having directing
means for limiting the path traveled by a pipe which is shifted
when the sections of the elongated structure are moved relative
to each other and which carries fluid to drive-means* for
either (a) the movable section of the elongated structure or (b)
the load support surface of the apparatus.
This subclass is indented under subclass 226. Mobile wheeled or tracked apparatus wherein the two sections
of the vertically extending, elongated structure are moved relative
to each other by a single, fluid powered mechanism having two telescopic
concentric components.
This subclass is indented under subclass 226. Mobile wheeled or tracked apparatus in which one particular
aspect (e.g., cross section) of the vertically extending elongated
structure is detailed.
This subclass is indented under subclass 222. Mobile wheeled or tracked apparatus having hand engaged
structure used to propel or to direct the course of the mobile apparatus
which is positioned in a manner designed to allow a human operator
to walk while propelling or directing the apparatus when it travels
between horizontally spaced locations.
This subclass is indented under subclass 231. Mobile wheeled or tracked apparatus provided with structure
extending outwardly from the main track engaging or wheeled supporting base
of the mobile apparatus which prevents the mobile apparatus from
toppling over or overturning when in use.
This subclass is indented under subclass 222. Mobile wheeled or tracked apparatus having a particular
aspect of drive-means* (e.g., cable drum) for transmitting
to the load support surface of the apparatus the force necessary
to shift it along its confined linear path detailed.
This subclass is indented under subclass 233. Mobile wheeled or tracked apparatus wherein the drive-means* includes
a fluid powered mechanism having two telescopic, concentric components
which mechanism is directly attached or linked to the load support
surface of the apparatus.
This subclass is indented under subclass 233. Mobile wheeled or tracked apparatus wherein the drive-means* includes
both (a) a cable* directly attached to the load support
surface of the apparatus and (b) a drum turned about its central
axis by the source of power and having a perimeter about which the
cable* is wound and collected when the drum is turned to
apply a pulling force to the load support surface.
This subclass is indented under subclass 233. Mobile wheeled or tracked apparatus wherein the drive-means* includes
both (a) a toothed gear rotatably attached to the load support surface
or to a relatively stationary component of the mobile apparatus
and (b) a bar or chain which is mounted along the confined path
of travel of the load support surface or attached to the load support
surface and which has a row of complementary teeth or apertures
mating with teeth of the gear.
This subclass is indented under subclass 222. Mobile wheeled or tracked apparatus having at least one
particular aspect of the load support surface detailed.
(1)
Note. The line between an elevator or industrial lift truck
proper for this and the indented subclasses and one proper for Class
414, Material or Article Handling, is as follows:
(a)
This subclass and its indents provide for an elevator or
industrial lift truck or component thereof when the load is shifted
in its entirety in a primary lifting direction from one level to
another vertically spaced level and may additionally include (1)
mere pivoting or tilting of the load supporting structure for detachment
or storage or (2) retaining of a received load on the support surface;
and
(b)
Class 414 provides for load engaging structure in which the
load support surface travels in a generally vertical primary lift
direction and (1) is mounted for movement in a direction other than
the primary lift direction (e.g., tilting) or (2) has an additional
load handling structure (e.g., conveyor) or (3) is constructed in such
a manner that the load support surface is inherently self-charged
or self-discharged along the primary lift direction.
Material or Article Handling,
subclass 785 for a load-underlying support surface for an elevator
or industrial lift truck having an additional load handling feature.
This subclass is indented under subclass 222. Mobile wheeled or tracked apparatus having one particular
aspect of means which contacts or is on the load support surface
of the apparatus for limiting the surface to vertical travel along
its confined linear path detailed.
This subclass is indented under the class definition. Subject matter wherein (a) the rigid or semirigid means
for limiting the path of travel of the load-underlying support surface
of an elevator is attached to or formed in the outer surface of
a wall forming the perimeter of a building and (b) the load-underlying
support surface is completely located, at all times, beyond the
perimeter of the building.
Fire Escape, Ladder, or Scaffold,
subclasses 141+ for a platform having elevating or lowering means
and subclass 37 for a similar platform which also traverses horizontally
along a track.
This subclass is indented under the class definition. Subject matter constructed in a manner which makes it easily
movable, as a unit, from one location where it functions as an elevator to
another location where it again functions as an elevator.
(1)
Note. The line between a portable elevator proper for Class
254, Implements or Apparatus for Applying Pushing or Pulling Force,
is as follows: (a) Class 187 provides for transportable elevating apparatus
which (1) lifts the entire load a significant distance between a
loading and unloading position (e.g., greater than the height of
a load being lifted), (2) is transported between use locations in
an unloaded condition and (3) has a load supporting surface intended
to be guided along or confined to (e.g., located within a shaft)
a linear path, and (b) Class 254 provides for portable "jacking" apparatus
which is movable between locations and either (1) elevates only
one portion of the load, or (2) is manually transported as an assembled
self-supporting unit between use locations, or (3) is carried and
positioned under the load and is capable of lifting the load only
a relatively short distance (e.g., less than the distance between
the floor and ceiling of a room).
Fire Escape, Ladder, or Scaffold, appropriate subclasses, especially
subclasses 141+ for a portable platform where a workman only does work
while supported thereon (e.g., sandblasting, window washing, etc.).
Implements or Apparatus for Applying Pushing or
Pulling Force, appropriate subclasses for portable "jacking" apparatus
lifting only a portion of a load or lifting a load a short distance.
Material or Article Handling,
subclasses 495+ for a self-loading vehicle with an elevating load
body and subclasses 540+ for a self-loading vehicle loaded
by an attached elevator.
This subclass is indented under subclass 240. Movable elevator wherein the rigid or semirigid means for
contacting and limiting the travel of the load-underlying support
surface to a fixed vertical path is incapable of maintaining itself
in an operative position without being leaned against or propped
up by another structure (e.g., building, pole).
This subclass is indented under subclass 240. Movable elevator which is either designed to be (a) quickly
disassembled and reassembled when moved between use locations or
(b) readily folded into a more compact size, in at least one dimension,
when moved between use locations.
This subclass is indented under subclass 242. Movable elevator wherein a portion of the weight of the
elevator is sustained or borne by an attached wheel in contact with
the ground when the elevator is moved in its disassembled or folded
configuration between use locations.
This subclass is indented under subclass 240. Movable elevator wherein a portion of the weight of the
elevator is sustained or borne by an attached wheel in contact with
the ground when the elevator is moved between use locations.
This subclass is indented under the class definition. Subject matter wherein the rigid or semirigid means for
contacting and limiting the path of travel of the load-underlying
support surface is obliquely angled relative to the horizontal surface
or ground upon which the elevator is supported.
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