Abstract: A sliding panel display device for displaying two different images, such as photographs, comprises front and rear panels, each bearing a different image or photograph, and each divided into a plurality of parallel strips. The strips of the front panel are arranged as slidable interleaves between the strips of the rear panel, whereby the strips of the front panel are movable between a first position, in which the strips of the rear panel are completely covered by the strips of the front panel, and a second position, in which the strips of the front panel are completely hidden behind the strips of the rear panel whereby in the first position, only the image on the front panel is visible, while in the second position, only the image on the rear panel is visible. These panels are held together in the interleaved relationship in a holder that forms a frame. The rear panel is fixed in the holder, while the front panel is held in the holder so as to be slidable between the first and second positions.

Abstract: A box-like picture display unit is arranged to display two framed pictures in windows (12 and 13). The pictures are moved in turn from a stack (15) by movement of a carriage (14) up and down. When the carriage (14) is moved upwards, a finger (18) engages a recess (20) in a back of a rear picture in the stack and lifts and carries the picture to the window (12). When the carriage moves downwards, a fixed arm (21) pushes the picture down from the window (12) to opposite the window (13), and in front of the stack (15). The carriage is moved down by manually pressing on a top part (25) of the carriage. The carriage is moved upwards automatically under the action of a pair of coiled springs (26), the springs being charged; i.e., wound up, during and by downward movement of the carriage (14).

Abstract: A signage apparatus has a storage magazine of cartridges which may be individually displayed as desired.

Abstract: In an apparatus for turning over individual sheets assembled to form a stack, preferably for leafing through program tiles of a jukebox, the sheets are arranged to pivot about mutually parallel pivot pins and are provided with projections rising above the pivot pins on which a support engages so that a sheet is turned over to the opposite side. A space-saving design, in which unintentional turning-over of the pages is effectively prevented, is provided in that at least one fixing device and stop device are provided, the fixing device being in contact with the open sheets so that in the turning-over movement of an open sheet it is moved against a force acting on the fixing apparatus, and the stop device being arranged so that the sheets adjoining the open sheets are in contact with the stop device so that their pivoting in the turning-over direction is prevented at least until the projections of the adjacent sheets are in a position of engagement with the support.

Abstract: A poster display system for displaying a plurality of different images which includes an image grid with interlaced strips from the various images, masking grid adjacent the image grid having spaced apart masking strips alternating with spaced apart window strips, a mounting system for mounting the image grid and the masking grid for movement relative to one another, a drive mechanism for producing relative movement between the image grid and the masking grip between successive display positions in which the window strips of the masking grid are aligned with image strips of a particular image, the image strips of the other images being obscured by the masking strips, and compression means for urging opposite edge portions of the image grid and of the masking grip towards each other whereby the image grid and the masking grid become curved and the image grid and the masking grid are brought into intimate contact with one another under pressure.

Abstract: Apparatus for turning over individual boards assembled as a stack, preferably for leafing the program boards of a music box (juke box) is provided, in which boards may be rotated around mutually parallel pivot axes lying in a plane, pivoting bilaterally with the edge area of one side on mutually straight profile sections which can be moved synchronously in guides of a chassis by a drive in a straight line in both directions. The boards are provided with projections extending beyond the pivots, at which a stay fixed to the chassis engages in such a way that in each case, a diagonally supported board lying in a viewing window of the chassis is turned over to the opposite side, in which position it is supported at an approximately identical, mirror-image angle.

Abstract: The invention provides a self-powered display unit for displaying at least two consecutively changing images to be viewed by a viewer, the unit comprising a housing, at least one wall portion of the housing being made of an array of linear lenses having a lenticular front face and a flat rear face; at least one displaceable, light-weight, substantially planar indicia carrier disposed inside the housing at a distance from the rear face at most equalling the focal length of the lenses, and a high efficiency, low energy consumption, battery-powered DC drive means for periodically displacing the indicia carrier for a distance at least equalling the distance between two adjacent lenses of the array.

Abstract: There is provided a self-powered display unit for displaying at least two consecutively changing images to be viewed by a viewer, the unit including a housing having at least one window-like opening; at least one lenticular panel mounted in the housing behind the window-like opening, the lenticular panel having front and rear faces, the focal length of the lenses being substantially equal to their width; at least one displaceable, lightweight, substantially planar indicia carrier in the form of a replaceable film or sheet disposed inside the housing; an edge of the indicia carrier at least indirectly freely abutting against a cam; a high-efficiency, low-energy consumption, battery-powered DC drive including a DC motor coupled to the cam for periodically displacing the indicia carrier for a distance at least equalling the distance between two adjacent lenses of the panel, and a guide facilitating smooth reciprocating movement of the indicia carrier in juxtaposition with the rear face of the lenticular panel, w

Abstract: A display device for sequentially displaying a plurality of images interlaced on a single mosaic transparency includes a frame and a drive assembly engageable with the mosaic and operative to drive the mosaic through a closed loop path. A thermal compensation device is mounted on the frame and engaged with a substantially opaque mask overlying the mosaic and formed with a uniform aperture pattern for sequential alignment with the images formed on the mosaic. The thermal compensation device is responsive to temperature changes within the display device to shift the mask relative to the frame such that the mask follows the shifting of the mosaic due to such temperature changes to thereby maintain the mask and mosaic in the proper relative positions for precise registration of the image pixels formed on the mosaic with the apertures in the mask.

Abstract: A title rack page drive for a jukebox includes a plurality of title pages which are each pivotally mounted to pivot about a horizontal axis and a page drive for turning the pages. The page drive selectively turns an individual one of the pages at a time about the pivot axis of that page by positively engaging a pin on an individual one of the pages and applying a generally arcuate motion to each pin in order to rotate the pages about the axis.

Abstract: A display device, particularly for the display of music titles in a jukebox includes a frame housing, two juxtaposed stacks of information carriers arranged vertically one behind the other, with a front information carrier of a first one of the stacks of information carriers and a rear information carrier of a second one of the stacks of information carriers being simultaneously displaceable by a displacing mechanism relative to one another toward the respective other stack of information carriers. In order to displace the respective front and rear information carriers, the two stacks of information carriers are movable by the displacing mechanism relative to one another in synchronized steps and offset by the thickness of an information carrier. The direction of movement of the movable and displaceable information carriers is reversible by a reversing mechanism. The information carriers of each stack of information carriers are supported at edges thereof in the threads of threaded spindles.

Abstract: A display system for two-dimensional displays wherein images are applied (e.g., photographically, printed or the like) to transparent sheets and transported through a viewing machine, the sheets being sequentially positioned in a back-lighted viewing window. The sheets are suspended from rods and stored behind the back-lighting area. The rods are arranged in a desired sequence in a storage rack having an entrance and exit. A chain is entrained on a circuitous pathway through the machine. The pathway starts at the exit end of the storage rack referred to as a pick-up station, then passes over the back-lighting area, extends downwardly between the back-lighted area and the window, passes under the back-lighting area and behind the stored display sheets to a return station that receives the sheets and directs them to the entrance to the storage rack, and then back to the pick-up station. The images are inverted on the sheets with the sheets suspended from the rods, e.g.

Abstract: A display apparatus and a display method using this apparatus in which a plurality of circulating members are accommodated in two accommodation chambers formed in a frame. The circulating members are circulated by being moved vertically or laterally by first and second feed devices and first and second transport devices so that the display is successively changed, thereby enabling various information items to be displayed easily and conveniently.

Abstract: A plurality of different advertising messages is displayed in a mechanical and repetitive manner. The size of the message is determined by the number of moveable panels used. A complete message can be shown on as little as two moveable panels or as many as an even multiple of two panels. Each panel is rectangular in shape and mounted with the long edge vertical. Each pair of panels are moved sequentially, first longitudinally and then transversely until a new message is displayed. The process is repeated sequentially to display each new message in turn. The total number of panels is determined by the number of messages and the size of each message to be displayed with each panel being located on a moveable carrier. The carriers are prevented from twisting and jamming by discrete springs and transfer guides that maintain a preferred relationship of the carrier when being moved.

Abstract: A dispenser for the controlled one at a time dispensing of a magnetic card to an operator who inserts the card into a magnetic card reader for entry of an active number in an "Electronic Point of Sale" advertising medium reaching a predetermined captive audience while engaged in the spending of money, such as in supermarkets, shopping centers, hotels, trade shows, airports, drug stores and the like. The card is also used to imprint the card number embossed thereon on coupons in a coupon book then handed to the shopper with the card then returned to the dispenser to enable the sequential dispersing of another card. A card being reinserted into the card dispensing carousel is inserted into a card return slot to rest at one end on a retainer upper ledge until an operator depresses an actuator button forcing the end edge of the returned card past the upper edge of the retainer down onto a lower ledge of the retainer activating a carousel upper drive switch in the process.

Abstract: A mechanically operated, gravity-assisted display device has the capability of being remotely controlled by an unskilled operator to display current numeric pricing indicia for a product or other alpha-numeric indicia for any required purpose. The device is ideally suited for displaying the unit price of gasoline on an elevated sign at a filling station. Multiple gravity-biased sliding panels which are arrayed to form variable indicia are operated remotely by flexible suspension elements equipped individually with fixed enlargements. Interchangeable coded remote operating cards for groups of the flexible suspension elements have passages through which predetermined enlargements may pass while other enlargements are blocked. Movement of the block enlargements with the flexible suspension elements to which they are attached under influence of the coded cards establishes the required change of displayed indicia.

Abstract: A slide previewer/tray loader having a holder which is adapted to receive a photographic slide at one end thereof. The holder is initially positioned at an angle above horizontal so that the slide will drop into the holder by force of gravity. When in the initial position, the slide in the holder is illuminated by a back light so that the slide can be previewed and edited. The holder pivots in such a manner that the slide can be moved to a vertical position over a slide tray slot. Means are provided to restrain the slide in the holder during transit from the initial viewing position to the position over the slide tray slot. The restraining means releases the slide to allow it to drop into the tray slot.

Abstract: An indexing device consists of a base, a lid pivoted to the base, and a plurality of cards pivotally mounted between the lid and the base for selective movement with the lid. Each card has a lug at a front edge thereof, the plurality of cards being arranged such that the lugs are serially positioned at specific intervals in step-wise fashion. A like plurality of levers are pivoted to the base at corresponding specific intervals. A first end of each lever has a push-button fixed thereto for downward digital manipulation. The opposite end of each lever extends under the front edge of the cards for upward movement to select a desired number of cards to pivot upward with the opening of the lid.

Abstract: A display device arranged to present selectively three different displays. The displays are formed by three sets of display panels with two of the panel sets being selectively movable as a unit relative to the third and movable relative to each other and to the third to provide the selectively different panel displays. Selective movement of the panel sets is effected by a control which, in the illustrated embodiment, includes a camming element which is guided in a plurality of angularly related paths to effect the desired selective disposition of the different panel sets.