CLASS 353, OPTICS: IMAGE PROJECTORS |
1 | KALEIDOSCOPIC: |
This subclass is indented under the class definition. Subject matter including a plurality of reflecting surfaces
so arranged in the optical path that images of objects viewed as
multiple images of the objects arranged in a symmetrical pattern
and relative motion between the objects and the reflecting surfaces
or between the reflecting surfaces and observer changes the patterns.
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2 | . Including particles loosely housed for agitation: |
This subclass is indented under subclass 1. Subject matter including a chamber of loosely assorted objects, usually
of irregular shapes, transparent and varicolored, which
may be tumbled over each other by rotation of the chamber or moved
in other ways to give ever-changing visual effects.
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3 | HELIOSTATS: |
This subclass is indented under the class definition. Subject matter wherein solar light is employed to project
an image and comprising essentially a reflector and mechanism for
causing it to follow the apparent movement of the sun so as to keep
the direction of the reflected light constant and appropriate for
projecting the image.
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4 | ASCENDING HEATED AIR CHANGES PICTURES: |
This subclass is indented under the class definition. Subject matter wherein an object to be projected is moved to and from the projection position by convection currents of air which usually move a fan which in turn moves the object. | |
5 | MAPPING OR AERIAL PHOTOGRAPH RECTIFYING: |
This subclass is indented under the class definition. Subject matter wherein the projection system is especially
adapted to project an image (usually an aerial photograph
of the terrain) on a surface for making a map, or
to compensate for the orientation of the camera which produced the
aerial photograph being projected, or to align or superimpose
parts of such aerial photographs.
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6 | . Stereoscopic: |
This subclass is indented under subclass 5. Subject matter wherein the projected pictures were taken
from different points of view and have separate perspectives corresponding
to the perspective offered by the right and left eyes of a viewer.
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7 | STEREOSCOPIC: |
This subclass is indented under the class definition. Subject matter where the projection system is adapted to
project pairs of individual picture elements having separate perspectives corresponding
to the perspective offered by the right and left eyes of a viewer.
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8 | . Polarizer: |
This subclass is indented under subclass 7. Subject matter including light polarizing material in at least one light path for allowing light of a certain polarization to pass therethrough and blocking certain other light. | |
9 | . Slide transfer mechanism: |
This subclass is indented under subclass 7. Subject matter including mechanism for moving stereoscopic
slides into the projection path; or portions of this mechanism
such as a slide changer which moves slides from a magazine into
the projection path and back to the magazine or a magazine which
moves to position individual slides next to the slide changer.
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10 | RELIEF ILLUSION: |
This subclass is indented under the class definition. Subject matter wherein the projection system is adapted
to provide an illusion of depth from a single projected image obtained from
only one point of view.
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11 | TARGET, MAP OR NAVIGATION PROJECTION: |
This subclass is indented under the class definition. Subject matter wherein the projector is especially adapted
to project an image of a map or navigation chart; an image
of a target onto a map or chart; or a target which represents
a vehicle such as an aircraft onto a screen.
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12 | . With or for vehicle: |
This subclass is indented under subclass 11. Subject matter wherein the projector is in combination with a mobile carrier such as a ship, automobile, or airplane; or in which the projector is adapted to be employed in a vehicle. | |
13 | WITH OR FOR VEHICLE: |
This subclass is indented under the class definition. Subject matter in which the projector is in combination
with a mobile carrier, such as a ship, automobile, or
airplane; or in which the projector includes structure
which significantly adapts the projector for operation in a vehicle.
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14 | . Instrument indicator: |
This subclass is indented under subclass 13. Subject matter wherein the image projected is of the face
of an instrument which informs the driver about a condition or position
of the vehicle such as a speedometer or compass.
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15 | WITH SOUND ACCOMPANIMENT: |
This subclass is indented under the class definition. Subject matter wherein the image projector is synchronized
or otherwise combined with a means to reproduce sounds, such
as music or speech, and which sounds bear a relationship
to the projected pictures.
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16 | . Phonograph: |
This subclass is indented under subclass 15. Subject matter wherein the sound accompaniment is an instrument
for reproducing sounds by means of the vibration of a stylus or
needle following a spiral groove on a revolving circular disc or
cylinder.
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17 | .. In carrying case: |
This subclass is indented under subclass 16. Subject matter including a housing having a handle for carrying
the enclosed projector and phonograph.
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18 | .. Cabinet encloses projector and one side of screen: |
This subclass is indented under subclass 16. Subject matter including a cabinet which encases the projector
and part of the viewing screen and usually also encases the phonograph; and
which excludes outside light from the projection path to form a
unitary device.
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19 | . Common picture and sound record carrier system: |
This subclass is indented under subclass 15. Subject matter wherein the picture to be projected and the
audio record are both on the same film strip or slide or where both
are mounted in a common frame.
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20 | POLARIZER OR INTERFERENCE FILTER: |
This subclass is indented under the class definition. Subject matter including a polarizing element or interference
filter in the optical path to modify the light in said path.
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21 | EDITING OR AUXILIARY VIEWING: |
This subclass is indented under the class definition. Subject matter wherein the projector is particularly designed
so that the pictures to be projected may be directly inspected for
faults or arranged in a particular position or sequence; or
where the projector has auxiliary means so that the pictures may
be previewed before projection or may be viewed on an auxiliary
screen during projection on the main screen.
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22 | TRANSPARENT PLATE: |
This subclass is indented under the class definition. Subject matter including a transparent plate having parallel flat surfaces in the optical path through which the projecting light beam passes. | |
23 | . Plate part of film gate: |
This subclass is indented under subclass 22. Subject matter wherein the transparent plate is an essential
part of the gate to position a film strip in the focal plane of
the projector.
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24 | .. Including lens support: |
This subclass is indented under subclass 23. Subject matter in combination with means to position a lens
in the projector.
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25 | SELECTIVE DATA RETRIEVAL: |
This subclass is indented under the class definition. Subject matter wherein a desired one of a plurality of individual
units of information may selectively be moved into the optical path
for projection from a stored or nonprojectable position either by
positioning the unit in the optical path or by moving the optical
path to the individual unit.
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26R | . Film strip: |
This subclass is indented under subclass 25. Subject matter wherein the data is stored on a strip of film of indeterminate length which usually is supported on a pair of reels which are rotated to bring selected portions of the data into position for projection. | |
26A | .. Automatic |
This subclass has no definition. | |
27R | . Plural picture rows on single microcard: |
This subclass is indented under subclass 25. Subject matter wherein the data is stored in numerous individual areas which are arranged in a plurality of rows or columns on a rectangular sheet of microfilm which is in a flat condition during projection; the optical path and microcard usually being relatively movable to select the individual area to be projected by alignment with the optical path which may include moving a mask to block light from going through the undesired data. | |
27A | .. Automatic |
This subclass has no definition. | |
28 | PROJECTED IMAGE COMBINED WITH REAL OBJECT: |
This subclass is indented under the class definition. Subject matter wherein the projected image is combined with
a real object so that the two may be viewed simultaneously.
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29 | ADDITIONAL ILLUMINATION OF OR NEAR PROJECTED IMAGE: |
This subclass is indented under the class definition. Subject matter including a projector for projecting an image
on a surface and also means to illuminate the periphery of that
surface to form a lighted border or means to direct additional illumination
on the surface for the purpose of improved contrast, picture
definition, brilliancy or tinting.
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30 | COMPOSITE PROJECTED IMAGE: |
This subclass is indented under the class definition. Subject matter including at least one image projector to
project a plurality of images on a screen in superimposed or in
mosaic relationship so that the images each contribute a part of
the composite image.
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31 | . Multicolor picture: |
This subclass is indented under subclass 30. Subject matter including means to project a composite image
from a set of pictures, each picture corresponding to a
particular color which is different from the color of the other pictures
of the set.
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32 | .. Lenticular film: |
This subclass is indented under subclass 31. Subject matter wherein the projector is adapted for projecting
images from lenticular film and usually includes a multizone color
filter.
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33 | .. Prism: |
This subclass is indented under subclass 31. Subject matter including a prism, usually for directing
light to the respective pictures or for combining light which has
come through the respective pictures.
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34 | . Plural projection paths with single light source: |
This subclass is indented under subclass 30. Subject matter including a single lamp and two or more optical
paths and means to simultaneously direct light from the lamp to
the optical paths.
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35 | . Slides and/or film superposed in projector: |
This subclass is indented under subclass 30. Subject matter wherein a plurality of slides or film strips
are aligned in the optical path of the projector so that light passes
sequentially through more than one of them to form a composite image
on a viewing screen.
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36 | . Letters or numbers: |
This subclass is indented under subclass 30. Subject matter wherein a plurality of numbers or letters are individually projected adjacent each other on a viewing screen to form a meaningful image or where indicia is projected adjacent or upon a scene on the viewing screen, usually for the purpose of advertising. | |
37 | . Reflector between lamp and screen: |
This subclass is indented under subclass 30. Subject matter including a mirror or reflecting prism positioned
between the light source and the viewing screen to direct light
along the optical path.
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38 | UNITARY PLURAL REFRACTING SURFACES: |
This subclass is indented under the class definition. Subject matter including a transparent structure having
a plurality of discrete surfaces, such as lenticles or
facets, which extends across the optical path for modifying
the light which passes therethrough.
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39 | MICROPROJECTOR: |
This subclass is indented under the class definition. Subject matter including a lens system (usually
of the compound type) which provides great magnification
of the projected image of microscopical objects.
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40 | SCALE OR SCALE INDICATOR PROJECTOR: |
This subclass is indented under the class definition. Subject matter including a scale or scale indicator together
with optical elements arranged to project an image of the scale
or scale indicator.
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41 | . Vernier or plural scales: |
This subclass is indented under subclass 40. Subject matter including more than one scale, such
as in a vernier or micrometer for making fine or exact measurements.
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42 | POINTER: |
This subclass is indented under the class definition. Subject matter wherein the projector includes an optical
or mechanical pointer for indicating to the observer particular
parts of a projected image on a projection screen, or light-spot
pointers, per se.
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43 | GUN, FLASHLIGHT OR BATTERY OPERATED TYPE: |
This subclass is indented under the class definition. Subject matter including a projector housing shaped like
a pistol, gun or flashlight or such projector or other
projector which uses a dry-cell battery for a power source.
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44 | SIMULTANEOUS PROJECTION AND MANUAL DELINEATION: |
This subclass is indented under the class definition. Subject matter wherein the projector is constructed to permit
a person to write or draw simultaneously on a surface while an image
of that writing or drawing is projected from the surface on a viewing
screen; or including means such as tracing paper on which
an image is projected while a person simultaneously makes a record
corresponding to the image by tracing the image with a pencil or
the like.
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45 | . Score register: |
This subclass is indented under subclass 44. Subject matter wherein the writing which is projected is the score of a game such as bowling. | |
46 | IMAGE MOVES ON SCREEN: |
This subclass is indented under the class definition. Subject matter including a projector adapted to project
an image which moves on or across the viewing screen.
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47 | . Cabinet enclosed projector and one side of screen: |
This subclass is indented under subclass 46. Subject matter including a cabinet which encases the projector
and part of the viewing screen and which excludes outside light
from the projection path to form a unitary device.
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48 | . Plural projectors or projection paths: |
This subclass is indented under subclass 46. Subject matter including a plurality of projectors as there
defined or two or more optical paths for projecting onto separate
viewing screens or separated areas on a viewing screen.
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49 | .. Single light source: |
This subclass is indented under subclass 48. Subject matter including only one lamp for the two or more
optical paths and means to direct light from the lamp to the optical
paths.
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50 | . Reflector between lamp and screen: |
This subclass is indented under subclass 46. Subject matter including a mirror or reflecting prism positioned
between the light source and the viewing screen to direct light
along the optical path.
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51 | .. Plural: |
This subclass is indented under subclass 50. Subject matter including a plurality of reflectors as there
defined.
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52 | TEMPERATURE CONTROL: |
This subclass is indented under the class definition. Subject matter including means to heat, cool, reduce
the rise in temperature, or ventilate all or part of the
projection system or the picture to be projected.
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53 | . Means to preheat slides or film: |
This subclass is indented under subclass 52. Subject matter including means to conduct heat or direct heated air to a film-slide magazine or to a film strip to heat the film before projection to prevent unequal expansion of the film (known as "popping") and thus prevent distortion of the projected image. | |
54 | . Liquid coolant: |
This subclass is indented under subclass 52. Subject matter including a liquid, usually water, in
or near the projection path which absorbs heat energy thus reducing
the amount of heat transmitted to the film or other object to be
projected.
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55 | . Heat filter: |
This subclass is indented under subclass 52. Subject matter including a sheet of material in the optical
path which at least partially separates the heat or infrared energy
from the visible-light energy; by absorbing the
heat energy, by reflecting the heat energy and transmitting the
visible light, or by transmitting the heat energy while
reflecting the visible light toward the object to be projected.
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56 | . Heat resistant or insulating material: |
This subclass is indented under subclass 52. Subject matter including a low heat-transmitting
shield, liner, or partition which absorbs or reflects
heat and stops heat from reaching particular parts of the projector; a
mask having an aperture in the optical path which blocks part of
the heat and light rays; a mask which alternately blocks
the optical path for the purpose of reducing the heat energy reaching
the object; or nonheat-conducting material employed
in constructing the projector to reduce the transfer of heat to
particular projector parts.
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57 | . Blower: |
This subclass is indented under subclass 52. Subject matter including a fan or rotor and means to rotate
the fan or rotor to move cooler air into the projector and to move
warmer air out of the projector to cool the parts of the projector.
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58 | .. Plural: |
This subclass is indented under subclass 57. Subject matter wherein the projector includes a plurality of fans or rotors which force air through parts of the projector. | |
59 | .. Common motor for blower and slide changer: |
This subclass is indented under subclass 57. Subject matter wherein the motor which rotates the blower is operatively connected with the slide-transferring mechanism to provide the force which moves the slides. | |
60 | .. Air directed against face or back of object: |
This subclass is indented under subclass 57. Subject matter wherein the air is particularly forced against
and moves substantially perpendicular to the front or back side
of an object to be projected to hold the object in place during projection
or to merely cool the object.
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61 | .. Particular air ducts or deflector: |
This subclass is indented under subclass 57. Subject matter including special passages or deflectors
to direct air to certain parts of the projector for cooling thereof.
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62 | STENCIL OR PERFORATED PLATE PROJECTOR (E.G., SKY OR CLOUD PROJECTOR): |
This subclass is indented under the class definition. Subject matter wherein the projector is particularly adapted
to project an image of an opaque stencil or opaque plate which is
perforated so as to form a particular message or design on a viewing
screen or on a cloud in the sky.
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63 | EPIDIASCOPE (I.E., SELECTIVE OPAQUE AND TRANSPARENCY PROJECTOR): |
This subclass is indented under the class definition. Subject matter including a projector which selectively projects
an image from an opaque object by light reflection therefrom or alternatively
projects an image from a transparency by directing light therethrough.
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64 | . Plural reflectors between lamp and screen: |
This subclass is indented under subclass 63. Subject matter including a plurality of mirrors or reflecting
prisms positioned between the light source and the viewing screen
to direct light along or toward the optical path.
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65 | EPISCOPE (I.E., OPAQUE PROJECTOR): |
This subclass is indented under the class definition. Subject matter including means to project the image of an
opaque object by reflecting light from the object rather than projecting light
through a slide or film as in a transparency projector.
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66 | . Reflector between lamp and screen: |
This subclass is indented under subclass 65. Subject matter including a mirror or reflecting prism positioned
between the light source and the viewing screen to direct light
along the optical path.
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67 | .. Cabinet encloses projector and one side of screen: |
This subclass is indented under subclass 66. Subject matter including a cabinet which encases the projector
and part of the viewing screen and which excludes outside light
from the projection path to form a unitary device.
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68 | SELECTIVE SLIDE AND FILM STRIP PROJECTOR: |
This subclass is indented under the class definition. Subject matter including a projector which is particularly
adapted to selectively project an image to a viewing screen from
a slide or from a film strip.
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69 | DISTORTION COMPENSATION: |
This subclass is indented under the class definition. Subject matter including a rectifying element in the optical
path, or means to adjust an element in the optical path
to offset the undesired effects of abnormalities of the film or slides
or undesired effects of the screen and projector alignment.
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70 | . For projection axis inclined to screen: |
This subclass is indented under subclass (69). Subject matter including means to eliminate the keystone
effect or other distortion when the projector is above the viewing
screen, as in most theaters, or when the projection
axis is oblique to the screen or some other purpose.
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71 | SELECTIVE PROJECTION ON DISTANT OR CABINET SCREEN: |
This subclass is indented under the class definition. Subject matter including a cabinet which encases a projector
and part of a viewing screen, wherein the projector may
be employed to project an image on said viewing screen or wherein
the projector may be employed alternatively to project an image
on a distant, detached viewing screen.
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72 | PROJECTOR OR SCREEN REMOVABLE FROM COMMON HOUSING: |
This subclass is indented under the class definition. Subject matter including a projector and a screen in a common
housing wherein the housing is opened and the projector or screen
is at least partially removed when projecting the image on the screen.
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73 | . Plural reflectors between lamp and screen: |
This subclass is indented under subclass 72. Subject matter including two or more mirrors or reflecting
prisms in the optical path between the lamp and the viewing screen
during use.
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74 | CABINET ENCLOSES PROJECTOR AND ONE SIDE OF SCREEN: |
This subclass is indented under the class definition. Subject matter including a cabinet which encases the projector
and part of the viewing screen and which excludes outside light
from the projection path to form a unitary device.
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75 | . Light shield, mask, hood, or diaphragm: |
This subclass is indented under subclass 74. Subject matter including opaque or translucent light-limiting
means such as a diaphragm, hood, curtain, aperture
plate, framing plate, light baffle or shield.
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76 | . Focus or variable magnification: |
This subclass is indented under subclass 74. Subject matter including adjustable structure to focus the
image of the object on the screen or to increase or decrease the
size of the image relative to the size of the object.
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77 | . Reflector between lamp and screen: |
This subclass is indented under subclass 74. Subject matter including a mirror or reflecting prism positioned
between the light source and the viewing screen to direct light
along the optical path.
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78 | .. Plural: |
This subclass is indented under subclass 77. Subject matter including a plurality of reflectors as there
defined, which usually direct the light to form a folded
light path inside the cabinet.
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79 | STRUCTURALLY RELATED PROJECTOR AND SCREEN: |
This subclass is indented under the class definition. Subject matter where the projector is connected to a viewing
screen by physical means such as mechanical linkage to space the screen
from the projector or electrical wiring to control movement of the
screen from the position of the projector.
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80 | . Profile or silhouette: |
This subclass is indented under subclass 79. Subject matter wherein a shadow image of an article is projected
on the viewing screen.
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81 | PRISM IN LIGHT PATH: |
This subclass is indented under the class definition. Subject matter including a prism in the optical path to
reflect or refract the light rays of the path.
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82 | PLURAL PROJECTION PATHS WITH SINGLE LIGHT SOURCE: |
This subclass is indented under the class definition. Subject matter including a single lamp and two or more optical
paths and means to direct light from the lamp to the optical paths, usually
alternately.
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83 | . Dissolve type: |
This subclass is indented under subclass 82. Subject matter including means to fade in a picture in one projection path or to fade out the picture in the other projection path, usually by means of a shutter or by gradually shifting the lamp from one projection path to the other. | |
84 | COLOR FILTER: |
This subclass is indented under the class definition. Subject matter including means in the optical path to block
or absorb particular wavelengths of light.
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85 | LAMP CONTROL: |
This subclass is indented under the class definition. Subject matter including means to switch the lamp off and
on or to otherwise modify the illumination intensity or means to
adjustably position the lamp relative to other parts of the projector.
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86 | . Dissolve type: |
This subclass is indented under subclass 85. Subject matter including means to gradually extinguish the
lamp to fade out a picture or to gradually increase the illuminating
power of the lamp to fade in a picture.
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87 | . Lamp position adjustable: |
This subclass is indented under subclass 85. Subject matter including means to movably position the light
source, usually relative to a reflector or lens in the
projector.
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88 | SHUTTER: |
This subclass is indented under the class definition. Subject matter including means to interrupt the light from
the lamp in the projector, usually during movement or changing
of the picture carrier.
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89 | . Plural projection paths: |
This subclass is indented under subclass 88. Subject matter including two or more optical paths for projection
of pictures with either a shutter for each path or a shutter which
alternately blocks the two paths.
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90 | .. Dissolve type: |
This subclass is indented under subclass 89. Subject matter including means to gradually increase the
intensity of an image (i.e., fade
in) or to gradually diminish the intensity of an image
until it is no longer recognizable (i.e., fade
out).
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91 | . Solenoid operated: |
This subclass is indented under subclass 88. Subject matter including a periodically-energized electromagnet which either directly operates the shutter or which operates some other part of the projector which is connected to the shutter. | |
92 | . Slides reciprocated horizontally from magazine: |
This subclass is indented under subclass 88. Subject matter including a slide magazine and mechanism
to horizontally move the slides individually into the projection
path and back into the magazine and to advance the magazine all
in cooperation with movement of the shutter.
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93 | . Dissolve type: |
This subclass is indented under subclass 88. Subject matter including means to gradually increase the
intensity of an image (i.e., fade
in) or to gradually diminish the intensity of an image
until it is no longer recognizable (i.e., fade
out).
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94 | PLURAL: |
This subclass is indented under the class definition. Subject matter including a plurality of projectors as there
defined or two or more light sources with their respective associated
optical paths.
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95 | FILM GATE: |
This subclass is indented under the class definition. Subject matter including structure in the optical path which
positions a film strip in the focal plane of the projector and masks
the film edges so that a single frame or picture area is projected.
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96 | . And lens support: |
This subclass is indented under subclass 95. Subject matter in combination with means to position a lens
in the projector.
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97 | LIGHT SHIELD, MASK, HOOD, OR DIAPHRAGM: |
This subclass is indented under the class definition. Subject matter including opaque or translucent light limiting
or controlling means such as a diaphragm, hood, curtain, aperture
plate, framing plate, light baffle or shield.
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98 | REFLECTOR: |
This subclass is indented under the class definition. Subject matter including a surface, which specularly
reflects light, positioned behind the light source or anywhere
in the light path between the light source and the viewing screen.
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99 | . Plural: |
This subclass is indented under subclass 98. Subject matter including a plurality of reflectors as there
defined.
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100 | LENS SUPPORT: |
This subclass is indented under the class definition. Subject matter including means to position a lens in the
projector.
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101 | . Lens position adjustable: |
This subclass is indented under subclass 100. Subject matter wherein the support movably positions the
lens for a purpose such as focusing, varying the magnification
or facilitating insertion of the film in the projector near the lens.
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102 | PARTICULAR CONDENSER: |
This subclass is indented under the class definition. Subject matter including a lens in the optical path between
the lamp and the object to form and direct parallel rays along the
optical axis toward the object or to secure a desired distribution
of the light over the surface of the object, the lens usually
having a specific surface, shape, index of refraction, or
dimensional relationship to the lamp or object whose image is to
be projected.
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103 | SLIDE TRANSFER MECHANISM: |
This subclass is indented under the class definition. Subject matter including mechanism for moving slides into
the projection path; or portions of this mechanism such
as a slide changer which moves slides from a magazine into the projection
path and back to the magazine or a magazine which moves to position
individual slides next to the slide changer.
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104 | . For slides of various dimensions: |
This subclass is indented under subclass 103. Subject matter wherein the slide changer or carrier is particularly
adapted to hold or move slides of different lengths, widths, or
thicknesses or slides which are distorted or warped.
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105 | . Magnetically operated: |
This subclass is indented under subclass 103. Subject matter wherein a magnet, either permanent or electromagnetic, is employed to aid in getting the slides into the correct position for projection. | |
106 | .. Solenoid: |
This subclass is indented under subclass 105. Subject matter wherein the magnet is a periodically-energized electromagnet for moving a slide or slide carrying structure. | |
107 | ... Rotary slide carrier: |
This subclass is indented under subclass 106. Subject matter wherein the slide carrier is the type which is rotated, such as a rotary magazine or a disc to which slides are fixed, about an axis during the slide moving cycle. | |
108 | . Slides fixed to movable carrier: |
This subclass is indented under subclass 103. Subject matter wherein the carrier is moved to position
the slides in the projection path so that the slides remain attached
to the carrier before, during and after projection as opposed
to being moved from a magazine before projection and to a magazine
after projection.
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109 | .. Endless chain or belt: |
This subclass is indented under subclass 108. Subject matter wherein the carrier is a chain or belt to
which slides are attached or a chain which is formed partially or
completely by the individual slide holders.
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110 | .. Disc: |
This subclass is indented under subclass 108. Subject matter wherein the slides are attached to a flat
disc shaped carrier and are in the plane of the disc which disc
is rotated in the projection path for removing one slide from and
positioning another slide in the projection path.
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111 | . Gravity operated: |
This subclass is indented under subclass 103. Subject matter wherein at least some movement of the slides to or away from the projection position is caused by the slides own weight, the slides either falling or sliding downwardly. | |
112 | .. Feeder magazine and receptacle: |
This subclass is indented under subclass 111. Subject matter including a magazine in which the slides are stored before being projected and a receptacle, which may be another magazine, to receive the slides after projection. | |
113 | . Feeder magazine and receiver magazine: |
This subclass is indented under subclass 103. Subject matter including mechanism to move a slide from
a first magazine in which slides are stored before projection to
a second magazine where the slides are stored after projection.
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114 | . Slides reciprocated horizontally: |
This subclass is indented under subclass 103. Subject matter wherein the individual slides are moved horizontally into and out of the projection path and are held in a substantially vertical path perpendicular to the projection path during such movement. | |
115 | .. Slides elevated: |
This subclass is indented under subclass 114. Subject matter including means to move a slide vertically in addition to horizontally reciprocating it, usually to raise the slide to the projection level before moving it horizontally into the light path or to raise the slide slightly after it is moved out of the light path so that it can be manually gripped and removed from the slide changer. | |
116 | .. From magazine: |
This subclass is indented under subclass 114. Subject matter including a magazine which is open on at
least one side or means to position a magazine so that the slides
are movable into the projection path and back into the magazine by
means of the reciprocation mechanism.
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117 | ... Rotary magazine: |
This subclass is indented under subclass 116. Subject matter where the magazine is shaped as a drum and rotates about the central axis of the drum to position different slides for reciprocation to and from the projection path. | |
118 | . Slides gripped or hooked: |
This subclass is indented under subclass 103. Subject matter including a hook which engages a slide, or
a hook on the slide which engages a complementary part on the changer, or
mechanism which frictionally grasps the individual slides.
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119 | HOUSING: |
This subclass is indented under the class definition. Subject matter including the structure which substantially
encases or encloses projection structure.
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120 | PICTURE CARRIER: |
This subclass is indented under the class definition. Subject matter including a film with particular relationships
of the pictures thereon to each other or to the dimensions of a
film strip, or with indexing means on the film; or
including a film or slide frame which has both a picture and a sound
record thereon.
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121 | METHODS: |
This subclass is indented under the class definition. Subject matter including process steps for use in projecting
an image of an object on a viewing screen.
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122 | MISCELLANEOUS: |
This subclass is indented under the class definition. Subject matter which is not provided for in any of the preceding subclasses of this class. | |
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
This subclass has no definition. | |
DIG1 | SLIDES STACKED WITH SURFACE TO SURFACE CONTACT |
This subclass has no definition. | |
DIG2 | FILM STRIP |
This subclass has no definition. | |
DIG3 | TRANSPARENT |
This subclass has no definition. | |
DIG4 | OPAQUE |
This subclass has no definition. | |
DIG5 | TRANSPARENCY HOLDER ACCESSORIES |
This subclass has no definition. | |
DIG6 | HEAD ACCESSORIES |
This subclass has no definition. | |