Abstract: An exposure mask 9 for photographic material 4 includes a measuring wheel 23 and two adjustable mask blades 19 and 20. Movement of the photographic material 4 causes rotation of the wheel 23, which causes a switching member 34 to approach a switch 42. When the switching member 34 reaches the switch 42 it stops the transport of the material 4. Adjustment of one mask blade 20 adjusts the initial distance between the switching member 34 and the switch 42.

Abstract: Three easel boards having cut outs and positioning means thereon are provided by which a sheet of photo paper may be positioned in order to provide fifteen print patterns on the sheets when exposed.

Abstract: An automatic masking device including an aperture extension means for use in a printer, wherein a reproduction picture to be projected onto a photosensitive film sheet mounted on a holder is masked by masking plates which are arranged in front of the holder, and are adapted to be movable over the surface of the holder so as to open and close an aperture between the masking plates, and which are adapted to be settled to form the aperture of the predetermined size, and wherein the aperture extension means is capable of extending the aperture beyond the predetermined size and of returning it to the predetermined size.

Abstract: A paper mask produces even width borders on bordered photographic prints even if the unexposed photographic print paper is misaligned, angularly mistracking, or wandering in alignment through roll feeding, or if the width of the paper varies. The paper mask apparatus includes a base which is mounted on the paper deck of the printer and front and rear guides which are movably mounted to the base and have masking lips which overhang the longitudinal edges of the print paper. The front and rear guides are generally parallel to one another and are urged toward one another by bias springs. A separate masking frame of the desired print size is mounted to one of the two guides and moves with that guide to define transverse masking edges.

Abstract: A system for microfilming documents that employs microprocessor control to insure fault-free operation. The aspects of operation; such as document present, size of document, size of photographic mask, the exposure parameter, and system "ready", must meet necessary criteria, or the microprocessor will halt operations and present a human-readable response as to the cause.Substitutional tables for supporting documents are available, to relate to the characteristics of the document.Simultaneous conflicting commands are executed sequentially according to a priority sequence.

Abstract: An automatic masking device for use in a printer, wherein a reproduction picture to be projected onto a photosensitive film sheet mounted on a holder is masked by a pair of masking plates which are separated at a certain distance away from the surface of the photosensitive film sheet, and are adapted to be movable over the surface of the film sheet so as to open and close the opening distance between the masking plates, and wherein the opening distance between the masking plates is settled by moving the masking plates depending on an magnification and a size of the reproduction picture.

Abstract: A photographic printer makes a plurality of exposures on photographic print paper. The size of the exposure is determined by a mask. The proper feed length of the print paper is determined by indicia associated with the mask.

Abstract: A photographic masking frame is described in which there is a base plate and a raisable frame which holds the print material flat on the base when in the working position and which has an opening in it which is closable by a removable square mask formed in two portions. One of these portions is L-shaped and covers substantially three quarters of the area of the opening and the other of these portions is square and covers the remaining quarter of the opening. The removable mask as a whole can be lifted as a single unit and fits into a square recess of approximately the same dimensions which is made in the top surface of the raisable frame. The area of the recess is greater than the area of the aperture in the frame. The square portion of the mask is raisable without disturbing the L-shaped portion of the mask and overlaps the adjacent edges of the L-shaped portion of the mask and so renders the join light-tight.

Abstract: A photographic printer has a first set of negholds for use with first-run production printing, and a second set of negholds for use with reprint production printing from film segments attached to an elongated paper tab. The first set of negholds includes one neghold for each of the commonly used sizes of photographic film, such as 110, 126 and 135. Similarly, the second set of negholds includes a neghold for each of these same common film sizes. Circuitry associated with the neghold indicate to the printer control whether a first-run neghold or a reprint neghold is being used. The photographic printer has stored a first set of calibration values for use with the first set of negholds and a second set of calibration values for use with the second set of negholds. Based upon the indication from the circuitry associated with the negholds, the photographic printer automatically selects which set of calibration values are to be used.

Abstract: A method and apparatus for photographic printing wherein the margin of a printing paper is masked and the uncovered region inside the margin is exposed by projection or contact printing, after which most of the central exposed region is masked and a remaining uncovered region is exposed to provide a border bounding the central image.

Abstract: A frame for making photocopies, includes a support plate having an upper surface adapted to support photosensitive sheet material and including four edges. At least two covers are provided, for covering respective sections of the upper surface of the plate so as to prevent light penetration onto the latter. Each of the covers is pivotable independently of the other between a first position in which a respective section of the upper surface of the plate is uncovered and a second position in which the respective section of the upper surface is covered. When the covers are in the abovementioned second position, they light sealingly engage the respective edges of the plate.

Abstract: A multiprint easel, comprising a photographic paper supporting base, provided with a raised rear edge, and slots extending parallely in and perpendicularly adjacent to a side of the base, within which spring loaded holding tabs are movably accommodated, which, together with upwardly projecting stationary tabs disposed at a base side oppositely thereto, are intended for insertion and holding of the paper on the base; a frame, mountable over the base, and panels accommodated, respectively, horizontally and vertically slidable therein, causing an opening to appear between the panels however they are manipulated on the frame; an insert placeable within and covering the opening of the frame.

Abstract: A photographic copying machine wherein any one of a series of masks, each having a differently dimensioned light-transmitting opening, can be placed onto a locating plate which supports a battery of fixedly mounted or mobile magnetic actuators for discrete electric switching elements. Each mask carries a different array of soft magnets which displace or otherwise influence a group of actuators so that the thus influenced actuators open or close the associated switching elements which adjust the exposure controls and/or another system of the copying machine in dependency on the size and/or shape of the opening in the selected mask. The soft magnets on each mask influence a different group (e.g., a different number) of actuators each of which is an H-shaped permanent magnet.

Abstract: When the size of the frame of a format mask is changed, an automatic frame-area measurement is performed, so that the exposure-duration control system of the copying machine be informed of the size of the format-mask frame to be employed. The machine is provided with photo-detectors which receive light through a transparent original for exposure-duration control purposes. At least one photodetector is used for the format-size measurement, the photodetector signal being transmitted through a controllable-gain amplifier to the exposure-duration control circuit. When an automatic frame-area measurement is commanded, all filters and shutter elements move out of the copying-light path and a calibration filter moves in so that the light incident on the photodetector does not greatly exceed that transmitted by a typical original.

Abstract: An automatic masking device for use in a composer, wherein an original picture is held against a transparent plate, which comprises a plurality of opaque maskingsheets which are adapted to move inwards along the surface of the transparent plate from its edges, driven by drive means which is controlled by detectors which are mounted on the inside edges of at least some of the masking sheets.

Abstract: A holding device for holding a laminar photographic material, particularly in production of photographic enlargements, has a supporting member with a supporting surface arranged so that a laminar photographic material can be placed on said supporting surface from outside, and an ejecting device associated with the supporting member. The ejecting device is movable between an operative position in which it projects outwardly beyond said supporting surface in a direction transverse to the latter so as to lift the laminar material from the supporting surface, and an inoperative position in which the ejecting device does not project outwardly beyond the supporting surface in the transverse direction. The ejecting device may be formed as a two-armed ejecting member whose one arm is arranged to be urged by the user, whereas the other arm lifts the laminar material from the supporting surface in response to such urging.

Abstract: A method of making a plurality of individual prints on a single sheet of photographic print paper is disclosed herein along with a particular easel arrangement for carrying out this method. The easel arrangement includes a fixed planar surface of sufficient size to support the photographic print paper for movement between a number of different positions, each corresponding to the placement of a particular print on the overall sheet. In order to make the individual prints, this sheet is manually moved to its various positions with the aid of stop members which engage the leading edge of the sheet but which are readily movable out of engagement therewith. In this way, the sheet of photographic print paper can be easily and accurately moved from position to position.

Abstract: An apparatus for producing an enlargement of a graphic image having a light tight housing with an opening on one side of the housing which cooperates with a light tight door to provide access to a central area of the housing, a platen adapted to receive a graphic image to be enlarged at the bottom of the housing, at least one set of parallel space lens support slots fixed to the housing and positioned one slot on each side of the hollowed out area and located a preselected distance from the platen, at least one set of parallel space slots fixed to the housing and positioned one slot on each side of the housing at the upper end of the housing with the parallel space and support slots and the platen located thereunder, a planar lens support having a fixed focal length lens adapted to be slidably inserted into and supported by at least one set of lens supports to position the lens between the platen and the base support slots, a planar matt support of a selected dimension positioning a sensitized sheet material

Abstract: A photographic copying apparatus wherein a composite mask is installed between the plane of photographic paper and a variable-focus optical unit which images a light source or an original into the plane of photographic paper. The movable sections of the mask carry pairs of photodiodes. A control unit adjusts the optical unit when the latter projects light onto both photodiodes of each pair in a direction to reduce the projected image and in the opposite direction when none of the photodiodes are illuminated. The adjustment is terminated when the size of the projected image is such that only one diode of each pair is illuminated.

Abstract: Photographic printing apparatus for printing a montage of contiguous images comprising a baseboard above which an enlarger is positioned, a guide mounted atop the baseboard, an easel having an easel base upon which photographic printing paper may be supported and a mask defining an aperture mountable upon the base in a plurality of orientation, and a locator for locating the easel at a plurality of positions along the guide atop the baseboard. The easel also has a cam rotatably mounted beneath a base upper surface to which a leaf spring is secured over the cam, and a lift rod movably mounted between the cam and leaf spring.

Abstract: A platform-shaped device is designed to be placed over the illuminating aperture of a color-controllable light-box of known construction, and under a camera which is loaded with a roll of color film of slide-forming size and character, and which is focused on the central area of the platform. The device has at opposite sides a reel for holding, guidedly feeding and receiving a roll of developed black-and-white negatives previously made from the usually much larger black-and-white art work. The device also has means (e.g. a geneva-movement mechanism) for accurately sequentially positioning in the camera field, each one of a series of frames to be converted to color-slide frames in the camera. A pair of laterally movable thin blackened masking plates are manually movable in guides to expose different laterally constricted areas of the negative for each color to be projected therethrough from the light-box.

Abstract: A masking device for cropping photographs which are viewed on a view screen of a photographic printer. The masking device allowing the operator of the photographic printer to see exactly what portion of a photograph is being cropped prior to the printing of the photograph. The mask further providing a key for signaling the electronic system of the printer how much paper should be advanced for the cropped photograph and correcting the exposure setting of the printer.

Abstract: A photographic enlarging easel is disclosed for positioning and masking photographic paper on a base plate. The easel allows the paper to be positioned anywhere on the base plate and provides masking blades that are removable and can be moved anywhere on the easel. The easel has a base plate with a flat surface for the paper, a rectangular open frame formed of four members, each having substantially similar cross sections, the frame pivoted about a pivot line parallel to and extending outside one edge of the base plate, the frame when in the closed position resting on the flat surface of the base plate allowing the paper to extend beyond the base plate.

Abstract: A photographic easel includes a plurality of panels movable separately and independently of each other for exposing sequential portions of photographic material disposed on the easel.

Abstract: In relation to a primary end use in nuclear medicine, namely, the recording of multiple images in a so-called dynamic study of a patient using a gamma camera wherein said multiple images are typically photographically reproduced on a single sheet of film in an appropriate format, the within inventive method obviates the need to modify the angular orientation of the images projected onto the image-receiving film sheet incident to providing same with the proper format or display position, and instead contemplates the novel alternative of properly pre-positioning the film sheets. Among other advantages and benefits is a noteworthy simplification in the construction and operational requirements of the image-projecting lens assembly of the apparatus being used to produce the photographic record.

Abstract: An apparatus for use in making printing plates in which a sheet of photo-sensitive material is held by a hanger and moved horizontally and vertically. Successive areas are, in this manner, aligned with a projector and exposed to separate images, each image corresponding to one page of a book. Telescoping cylinders produce the desired movement of the sheet in discrete steps so the position of the sheet need not be manually adjusted for each image. Fine adjustment of the position of the image on the sheet is obtained by moving two positioning rollers while the image is projected onto a movable registration screen that blocks the projection of the image onto the sheet until after the adjustment has been made.

Abstract: A photographic easel having a substantially flat panel provided with a rectangular rim having substantially parallel side walls and substantially parallel end walls in which the walls are spaced, respectively, one and two-thirds the length and the width of a rectangular test paper and the easel includes a rectangular flap having an edge substantially parallel to one of the walls and mounted thereon for pivotal movement between a position disposed flatly against the panel and a position retracted therefrom for guided positioning of the paper against the edge and the walls parallel thereto.

Abstract: In an apparatus for exposing a strip of photographic positive paper to light shining through a strip of photographic negatives for producing latent photographic images, an adjustable length mask for defining the outline of each photographic image print on the positive paper strip. The mask, which overlies the positive paper strip, includes manually movable plates for adjusting the length of the mask opening. An automatically operated marker punch is mounted upon the mask, offset from the lighted print area, and includes a replaceable thin punch blade positioned to form a narrow slot in the paper at the lead edge of each separate print, which slot is later used to actuate a cutter mechanism for cutting apart the developed prints from the positive paper strip.

Abstract: A photographic easel for making borderless prints has a laterally adjustable bar positionable by bolts movable in a pair of parallel slots and is otherwise formed of a generally rectangular metal sheet having bent-up edges. A back and side edge are bent at an angle of about 10.degree. from the vertical toward a central region of the sheet to form abutments for two adjacent edges of a sheet of print paper, and a front edge is bent up at an acute angle to the horizontal plane of the metal sheet to form a finger grip for manually positioning the easel. The bar is generally channel-shaped with a vertical edge and an inclined edge and is preferably reversible, and five support pads are secured to the underside of the sheet to uphold the corners and a central region above a support surface to provide clearance for the bar-retaining bolts.

Abstract: An apparatus is disclosed for printing a border on a photographic print. The apparatus is particularly useful for printing black borders which have always been difficult and costly to produce. The apparatus includes a light source within an enclosure having a translucent flat top surface to emit light and a straight edge at one side thereof, the enclosure having sides formed from opaque material. A further flat surface is positioned in the same plane as the translucent surface extending from the straight edge, a platen is formed from opaque material extending over the translucent surface with a sealing and pressure strip over the straight edge, a right angle corner frame positioned on the translucent surface with one arm having an edge parallel to the straight edge, an adjustable guide means for the corner frame and a locking means for locating the corner frame in a position on a linear path.

Abstract: A multiprint easel has a base and a mask positioned above the base to leave room for a laterally slidable paper tray. The paper tray is movable between at least two positions, has bent-in edges that hold print paper, and has a registration pin that fits in holes in the base to locate the paper tray accurately in each print position. The back edge of the paper tray is bent up to slide along the back edge of the mask and is held in engagement with the mask by a bent-up retainer at the back edge of the base. A movable slide preferably underlies the paper tray and has a bent-down back edge that is movable forward for removing paper from the tray, and the slide preferably guides on the registration pin.

Abstract: In the disclosed easel system, a base supports a number of interchangeable facilities for engaging photographic material such as enlarging paper. These facilities may provide variable borders, fixed borders, hold the material for unbordered pictures, and secure the material for contact prints. Hinges hold the various facilities in a preparatory position when the material is being changed.

Abstract: A web of copying material is transported on-edge through an exposure-station web guidance system provided with a masking system which includes stationary and shiftable transverse-edge framing plates. The projected image of a first longitudinal-edge reference line on the copy table supporting the original is brought into register with a corresponding reference line of the masking system. The projection scale is adjusted to cause the format-breadth of the projected image to be at most slightly smaller than the format breadth of the web, but in no event greater. The projected image of the first transverse edge of the original is brought into register with the edge of the stationary framing plate, and then that of the second transverse edge with that of the shiftable framing plate. This registration is effected by sensing infrared-light images of the dark-light transitions associated with the transverse edges of the original. An exposure is performed.

Abstract: An apparatus for making reproductions or negatives for plate making comprises a base frame, a vertical supporting post secured at its lower end to the base frame, a master copy holding frame spaced above the base frame and vertically movably supported on the supporting post, a light source on the master copy holding frame, a lens system on the underside of the master copy holding frame and a copy paper holding plate on the base plate. The light source, the lens system and the copy paper holding plate are so positioned relative to one another as to be aligned with the axis of light emitted by the light source. The master copy holding plate carries a movable plate which is horizontally movable both longitudinally and transversely of the master copy holding frame. A master film holding plate is adapted to support a plurality of master films thereon and be removably secured to the movable plate which is movable to position the master films selectively for exposure to the light.

Abstract: A photographic printer has a paper feed system for automatically advancing print paper by a predetermined feed length after each exposure. A paper feed cut off circuit terminates the paper feed after a predetermined time period in the event that the paper feed has not been previously terminated. This prevents waste of large amounts of print paper in the event of a malfunction in the automatic paper feed system.

Abstract: A device for use with a photographic apparatus adapted to project an image, the device having a base dimensioned to receive a photographically sensitized sheet in fixed position; and a shield borne by the base for overlaying a sensitized sheet received on the base and having a flap portion movable between a first position in which the image can be projected on the flap portion for test purposes and a second position in which a portion of the sensitized sheet is exposed to the projected image.

Abstract: This easel for photographic enlarging has retainers for holding paper in position on the easel, and improved means for adjusting the retainers for paper sheets of different size. There are clamps for holding the retainers in set positions and provision for preventing parts of the clamps from becoming disconnected when turned in directions to release them. A single clamping screw for each retainer expedites adjustment. Masks for paper of different size have the same spacing of screw-receiving openings corresponding to a single standardized spacing of threaded openings in the easel plate.

Abstract: A photographic developing apparatus comprising a rectangular easel with upper and lower edges, opposed first and second side edges and opposed top and bottom surfaces, the easel including sidewalls that form the top surface into a paper support surface capable of supporting a sheet of photographic print paper, a plurality of covers arranged in first and second parallel columns in a covering relationship on the paper support surface and hinged to the sidewalls such that the covers are capable of being selectively opened and closed and a plurality of lateral grooves formed in the bottom surface, and an easel support including a planar surface having a central area corresponding to a predetermined location, four rectangular elements each including an inner locating surface so as to provide opposed first and second side surfaces and opposed upper and lower surfaces, the side surfaces and the upper and lower surfaces having a dimension such that when the easel is positioned on the planar surface with its lower edg

Abstract: This easel holds photographic paper in position for exposure during an enlarging operation. The paper is placed on a plate and pushed up against a shoulder at one end of the plate; after which a masking frame is swung down into contact with the paper to hold it flat. Retaining elements extending from the shoulder hold the paper flat on the plate and prevent it from curving upward along the shoulder where the paper could be bent and creased when the masking frame swings down into contact with the paper.

Abstract: A photolettering, or photoprinting, attachment system for use with standard photographic enlargers, which includes an easel for holding photographic printing paper, comprising removable shield means to cover the paper and means to hold a layout positioning sheet in register with the photographic printing paper; said system may also include a film strip font carrier for positioning at the film plane of the enlarger.

Abstract: A vignetting device has plural sets of matching vignetting plates which are accurately aligned and successively shifted to a central opening to block out different parts of the photograph area so as to permit fast and accurate preparation of special effect and composite prints.

Abstract: The present invention provides an apparatus for photographically reproducing a positive image such as a previous photograph wherein both the focal length and the length from the positive image to the lens of the apparatus may be adjusted. The apparatus also includes means whereby two or more positive images may be reproduced on a single frame of film.

Abstract: A camera-processor magazine is disclosed having a cartridge for storing light sensitive roll material, together with means for driving such material out of the cartridge and upon an exposure platen. A roller curtain for shielding the material when the magazine is open also functions to guide the leading portion of the roll material across the exposure platen and into the nip of a pair of exit rollers.

Abstract: A sheet of opaque material has a window therein and marks on the sheet indicating the positioning of an edge of a test print for placement over the window to expose different areas of the test print in succession.

Abstract: A variable aperture shutter is provided with a pair of shutter blades reciprocably mounted on a drive formed by an endless belt stretched between, and driven by, a pair of capstans. One blade is attached to each side of the endless belt loop and both extend across the width of the loop. Reversible rotation of the capstans controls the separation of the blades. A light beam, aligned orthogonally with the shutter, is intercepted when the shutter blades are in the closed position, with their adjoining edges abutting. Light is permitted to pass through a gap between confronting blade edges upon controlled rotation of the capstan drive. Apertures of varied sizes and shapes may be generated by superimposing two or more shutters and selectively controlling their capstan drives.

Abstract: A locator pin is provided as part of an apparatus for maintaining accurate registration between a circuit board on which a conductive pattern is to be formed and a printing mask containing the image of the conductive pattern. The locator pin comprises a base member, an upright body member having a plurality of annularly arranged slots therein, and a threaded expansion pin fitting into the body member. The body member has a first cross-sectional area when the expansion pin is not screwed into it and a second cross-sectional area when the expansion pin is forcibly screwed into it. The first cross-sectional area of the body member is less than that of registration holes in the circuit board and printing mask, permitting the circuit board to be easily positioned adjacent the printing mask. The second cross-sectional area is at least as great as that of the registration holes so that the circuit board and printing mask are interlocked in accurate registration with one another.

Abstract: A borderless printing easel comprised of a paper support base having a retaining border formed thereon, and a set of flat sectioned mask plates removably positionable on the base portion, the individual sections of said mask plate being hinged at their center by a pliable strip of adhesive material whereby the mask sections can be successively folded back onto the top of opposing mask sections to reproduce adjacent or nearly adjacent borderless prints on a single sheet of print paper.