Abstract: Disclosed is a picture viewer for viewing a stack of pictures sequentially through a viewing window. The picture viewer comprises a housing member, a slider member, a bias means for urging the stack of pictures against the viewing window, and an exchange means for sequentially changing the picture that is presented at the viewing window. The exchange means comprises: (a) a retentive element to hold one picture in the housing member when the slider member is moved out of the housing member and (b) a separator bar which pushes the remainder of the stack out of the housing when the slider member is moved out of the housing. To permit relatively smooth operation of the picture viewer, the bias means is mounted on the slider.

Abstract: Disclosed is a picture viewer for viewing a stack of pictures sequentially through a viewing window. The picture viewer comprises a housing member, a slider member, a bias means for urging the stack of pictures against the viewing window, and an exchange means for sequentially changing the picture that is presented at the viewing window. The exchange means comprises: (a) a retentive element to hold one picture in the housing member when the slider member is moved out of the housing member and (b) a separator bar which pushes the remainder of the stack out of the housing when the slider member is moved out of the housing. Alignment means are provided to maintain the separated picture in alignment with the remainder of the stack so that jamming does not occur when the separated picture is returned to the stack.

Abstract: A device for sequentially exhibiting the individual charts in a stack of charts, each of the charts having a plurality of spaced notches along the lower edge thereof, the notches on consecutive charts being misaligned, comprising a display area having a lower shelf on which the stack of charts rest, the shelf being sloped forwardly and downwardly to direct the charts to and off the front edge thereof, a sliding comb assembly positioned adjacent the shelf, the comb assembly including a plurality of spaced teeth, the spacing between the teeth being the same as the spacing between the chart notches, the teeth extending upwardly and inwardly adjacent and along the front edge of the shelf to block movement of the charts off of the shelf except when the notches on a chart are aligned with the teeth, the comb assembly being slideable laterally relative to the shelf to align the teeth thereof with consecutive charts to deliver consecutive charts from the display area, and a spent chart magazine positioned to catch th

Abstract: Container for pictures, especially for photopositives, which is constructed to be at the same time a stand-up or hanging frame or a component of an archive. The container has centering elements by means of which the uppermost picture of a stored pile is completely visible in the viewing window.

Abstract: A picture viewer has a housing for a pile of pictures, a window for viewing the pictures, and a slider which is used to transport a picture from one side of the pile and guided to the other side of the pile again as the slider is operated. A retaining device selectively operates to prevent the remainder of the pile from being transported out of the housing.

Abstract: A picture viewer having an enclosure including a housing or frame and a slider movable in the housing, the frame and slider defining a compartment for a pile of pictures, a separator bar or pile transporter in the enclosure, an individual picture transporter accomplishing loosening of an individual picture from the pile and transporting the individual picture away from the pile, the loosening being accomplished by surface retentive means engaging the face of the individual picture at an end of the pile, such retentive means taking any of a number of different forms including forms which adhere, apply suction, are magnetically or electrostatically attractive, or otherwise retentively related to the face of the individual picture, the surface retentive means, in several forms of the invention, accomplishing the transporting function as well as loosening function, and in other forms of the invention the transporting being accomplished by separate transporting devices.

Abstract: A card index comprises a housing containing a drawer which holds a stack of punched cards. All the cards have punched holes in which a row of dogs in the bottom of the drawer engage and the cards also have punched selection holes in which selection stop cams can engage. Each card has selection holes in register with all of the stop cams except one. To select a card, a button corresponding to the card is pressed and this rocks a key lever to move the corresponding stop cam downwards. The cam passes through the selection holes in all the cards until it reaches the selected card which has no hole in register with that cam. Accordingly, the selected card and the cards, if any, below are pressed downwards and are held on the dogs. The drawer is released by depression of the button and is opened by a spring. As it opens, the drawer moves the cards which are pressed down on the dogs out of the housing with the selected card on top, but the cards above the selected card are retained in the housing by the stop cam.

Abstract: A slide viewer/sorter having a chute oriented at an incline to horizontal which is adapted to receive a photographic slide at one end. The slide drops by force of gravity to a viewing station where it is held by a detent. After viewing the slide the detent is actuated to release the slide which is transported by force of gravity to the lower end of the chute where it drops into a first receptacle. The first receptacle is rotatably mounted so that it can be moved out of the way, thus allowing the slide to drop further down into a second receptacle, having a number of bins. The second receptacle is mounted so that any bin can be positioned under the chute. This allows the operator of the viewer/sorter to sort the slides into two or more different stacks.

Abstract: A picture viewer having a housing to confine a pile of pictures, a slider to be withdrawn and returned to the housing, a viewing window, a pressure plate confronting the window, springs urging the plate toward the window, a retention strip to engage and strip off the picture at the end of the pile upon withdrawal of the slides, a separator strip to retain the pile as the one picture is stripped off, a slidable button on the housing to disable the springs and draw the plate away from the window, and a confining ledge on the slider also drawing the plate away from the window and independently of the slidable button.

Abstract: A microfiche carrier assembly is provided comprising a core of flexible but relatively rigid sheet material having a thin cover sheet provided with an adhesive surface for securing the cover sheet to the core so as to seal both faces and one end of the core. The cover sheet extends beyond the other end of the core to provide overhanging flaps forming a pocket therebetween with the adhesive surfaces of the flaps facing inwardly. A marginal edge of a microfiche is positioned in the pocket and is secured therein by the flaps. The microfiche carrier assembly is also provided with selector means in the form of a perforation at a predetermined location in a selector field to permit retrieval of a selected microfiche from a deck of microfiche carrier assemblies contained, for example, in a magazine.

Abstract: A container for confining a pile of pictures and displaying one of the pictures, a housing with a movable part facilitating removal and insertion of pictures, a viewing window, a backing device with a portion engaging and urging the pile of prints toward the window, and a movable spring or latch to hold the backing device against the displayed print, said backing device being released upon actuation of said movable part.

Abstract: A picture viewer having a housing to contain a pile of pictures, a slide in the housing, a window in the housing, a pressure plate confronting the window, springs mounting the plate, in certain embodiments biased to press the plate toward the window, and in other embodiments biased to retain the plate away from the window, a control to alternately move the plate against the spring bias or release the plate to alternately apply and relieve pressure on the pile of pictures, the control operating in response to withdrawal and return of the slider and also being manually operable.

Abstract: The invention relates to an apparatus for the alternate exposure of individual sheets from a pile of sheets, in particular to a photo-viewing change device, having a bearing face for the sheet edges at one side of a pile of sheets and having an access means or a shifting device for shifting an end sheet of the pile of sheets parallel to its sheet face.

Abstract: A picture viewer for displaying, progressively, all of the pictures in a pile of pictures, including a housing with a viewing window, a pile support in the housing beneath the window, leaf springs urging the support toward the window, a spring-disabling control on the housing to disable such springs, a slider to be withdrawn and returned to the housing, a rotary transporter in the housing adjacent the window engaging the top picture in the pile, a driver on the slider to revolve the rotary transporter, and a separator to hold the pile in the housing while the one picture is stripped off and moved out upon withdrawal of the slider, the one picture being pushed back into the housing and under the pile by the slider upon its return, the rotary transporter being non-revolving or spaced from the pile during slider return.

Abstract: A picture viewer for displaying, progressively, all of the pictures in a stack of pictures, including a housing with a viewing window, picture supporting elements behind the window, a space to confine the pile of pictures behind the supporting elements, a slider in the housing to be withdrawn and then returned, a retention element to strip an individual picture off one end of the stack as the slider is withdrawn from the housing, a separator traversing one side of the stack to engage the side edges of the pictures to allow relative sliding movement between the individual picture and the stack. The supporting elements being movable to drop the displayed picture from the level of the window, and a guide surface directing the individual picture stripped from the stack onto the supporting elements adjacent the window.

Abstract: A slide magazine for storing slide frames having an edge portion of a predetermined configuration, includes a housing having a bottom surface which is provided with formations operative for holding slide frames in the housing. The formations are shaped so as to matingly complement the configuration of the edge portion of the slide frames to thereby prevent the latter from falling out of the housing. The distance between two adjacent formations as considered lengthwise of the bottom surface corresponds to the thickness of the slide frames to be installed on the slide magazine. Thus, an overall length of a set of the slide frames filling the magazine corresponds to the length of the bottom surface so that the slide magazine requires substantially no more space than the set of slide frames in it.

Abstract: A display device of louvre arrangement wherein a display or exhibit is constituted by a group of parallel interleaved strips which are arranged in overlapping relation. The display device has a plurality of such groups. The display device has a driving mechanism having a cam arrangement, driving device, connecting members and a guide device, and cam followers each having an arm at the upper portion. The display device further comprises a frame structure releasably engaged with the connecting members of the driving mechanism, and elongated rigid elements movable together with the strips. Each elongated rigid element has an engaging member for contacting the arm of the cam follower to thereby shift the rigid elements and strips of one group in cooperation with a vertical movement of the cam followers.

Abstract: An image display system and process are disclosed. The image display system comprises a generally flat display screen which is subdivided into a plurality of display mode modules, each display module being composed of a plurality of display elements. Each display element comprises at least one rectangular display cell wherein a projection block is movable between a retracted position, where it is invisibly lodged within the cell, and an advanced position, where it is visible from outside by the display's viewer. Each projection block is fixed to a slide movable in the two directions perpendicular to the front plane of the display. Means are provided to simultaneously actuate all slides in their retracting and their advancing movement.

Abstract: An improved compact repeating slide viewer of the type having two compartments, one for storing a stack of slides and the other for viewing individual slides, a longitudinally shiftable slide carriage feeds the topmost slide of a stack to the viewing compartment and then returns the viewed slide to the bottom of the stack with the slide carriage retracting a spring actuated tongue which acts upon the stack until the viewed slide is returned to the bottom of the stack and then releases the tongue to elevate the stack for feeding of the next topmost slide. The viewer also includes means for easily loading and unloading slides from the stack or from the viewing compartment, and is constructed to be easily manufactured from molded plastic parts.