Abstract: There is disclosed a recording apparatus capable of easily overlaying two images. One image is read photoelectrically and supplied as electrical signals, while the other image is stored in a read-only memory and supplied as electrical signals. The read-only memory is also used for storing control information for the overlaying process.

Abstract: A photographic reproportioning apparatus for changing one dimension of a two dimension image contact print exposed on a photosensitive film moved by a support plate in a predetermined linear direction with respect to the image being reproduced by a reversible synchronous motor. A stationary overlying film carriage supports the original image in contact with the photosensitive film. An opaque mask overlies the film support members and includes an aperture bar assembly moved by synchronous motors in the linear direction of movement of the sensitive film. The aperture bar assembly, interposed in the mask transversely of the direction of its movement, exposes the film from an overhead light source during movement of the mask.

Abstract: A small sized copying machine employs a film-like transparent member as a support for originals to be copied, which is maintained in close contact with the original and a photosensitive film in an exposure region. The film is exposed from behind to obtain an electrostatic latent image corresponding to said original thereon.

Abstract: A photographic exposure apparatus for modifying graphic images by adding or subtracting image area in precise amounts from all defining edges of the graphic image as it is being exposed upon a light sensitive sheet, includes a chassis having a horizontal top. A film board, having an overlying light sensitive film, overlies the chassis top for movement in an orbital path relative to the chassis. A fixed position film carriage, supporting a film having an image to be reproduced, is superimposed on the film board in contiguous contact with the light sensitive sheet. A motor driven eccentric motion dial drive guide is connected with an under carriage supported by the chassis top and connected with the film board. The drive guide is manually adjusted and the motor energized for orbital movement of the film board in a path of predetermined magnitude during exposure of the image on the light sensitive sheet.

Abstract: This invention is directed to an apparatus and method for transferring the outline of a drawing to a copy sensitive base. In the transferring of the drawing there is employed a uniform intensity of light to have a uniform transfer of the drawing to the copy base without hot spots on the drawing. The size of the drawing and the copy base can be any reasonable size such as fifty feet by fifty feet.

Abstract: A mobile copier structured to be held in the hand and moved across the surface of the matter to be copied, comprising a support, a printable paper mounted on the support movable increment-by-increment across the matter to be printed in consonance with movement of the support thereacross, an optical train on the support for focusing the matter to be printed on the printable paper, a source of light for intermittently illuminating the matter to be printed and, optionally, a fixing and developing medium. The support is structured in two parts detachably connected, one of which contains the printable paper and the fixing and developing mediums, if employed, and is removable from the other part for replenishing the paper and developing medium.

Abstract: An improved image reproportioning system is of the type for reproducing an image from an image bearing sheet onto a photosensitive sheet so that the scale of one dimension of the reproduced image can be changed relative to its other dimension. The system comprises a first sheet supporting member for supporting one of the sheets, and a second sheet supporting member for supporting the other of the sheets in substantial juxtaposition with the first sheet. The system also includes means for defining a slit of light, and means for moving the first and second sheet supporting members at a substantially constant speed in a first direction parallel to the direction of the one dimension and transverse to the slit of light so that the sheets pass through and are exposed by the slit of light. Means are also provided for moving the first and second sheet supporting members relative to one another at a substantially constant relative speed as the sheets are exposed to the slit of light.

Abstract: A photographic reproportioning apparatus for transferring an image from a sheet member to an arcuate image on a photosensitive sheet has first and second travel boards movably supported for movement in a linear direction. A light shield having a uniform exposure line and a taper exposure line is located over the travel boards. Light projected through one of the exposure lines exposes a photosensitive sheet on movement of the sheet under the exposure line. A radius attachment having a circular member is drivably associated with the second travel board to move a photosensitive sheet in an arcuate direction. The sheet member carrying the image is attached to the first travel board and moves in a linear direction whereby the linear image is projected by light passing through the tapered exposure line in an arcuate pattern on the photosensitive sheet as the photosensitive sheet and sheet member having the image pass under the tapered exposure line.

Abstract: A method and apparatus for obtaining a distorted photographic reproduction from a negative photographic image, in which a sheet of photosensitive printing paper is attached to a planar surface of a table, the image negative is placed over the paper and a slitted mask is placed over the image negative. The image negative and the mask are moved laterally relative to one another and to the paper while the mask is exposed to a light source. To obtain a circular reproduction the mask is held stationary and the printing paper is rotated about an axis intersecting the slit while the image negative is moved laterally with respect to the slit.

Abstract: This invention relates to a drive system for the moving optics of the cable and drum type scanner that may be used in an electrostatic copier. A one piece cable is driven alternately by a pair of drums which are coupled to electromagnetic clutches so that linear document scanning and retracing by an optical carriage is achieved.

Abstract: There is provided an arrangement for driving reciprocating members, which is for use in the optical system of an electrophotographic copying machine of the scanning exposure type. The optical system is actuated to have an initial velocity through the resilient force caused by each of spring members subsequent to alternate arrivals to respective end positions of scanning and returning movements. After having obtained the predetermined velocity either for the scanning, or the return operation, the optical system is actuated to be electrically driven for the purpose through the actuation of a clutch.

Abstract: A photographic exposure apparatus and method for preparing production artwork of an image to be reproduced by photo-engraving. Prior art handwork or manually operated devices employed in modifying artwork images required high levels of skill and considerable time to achieve satisfactory results.The subject apparatus includes a movable panel superposed on a stationary plate for supporting a film containing an image to be reproduced in contiguous contact with a light sensitive sheet superposed on the stationary plate. An eccentric motion dial guide connected with a drive motor and connected with the film support panel is manually adjusted and the motor energized for orbital movement of the film support panel in a path of predetermined magnitude during exposure of the image on the light sensitive sheet.

Abstract: A contact printer, for exposing light sensitive sheets to relatively large size drawings and the like for making accurate duplications, is formed of an endless, movable, support belt having a flat support surface which is overlapped by a movable transparent belt. The drawing and sheet are overlapped and fed between and move in a longitudinal direction with the two belts. The overlapping portions of the transparent belt, the drawing and sheet are all flattened and tightly clamped together against the flat support surface by a vacuum system. Such system includes closely spaced, transversely extending, grooves formed in the surface of the support belt. The grooves open endwise into longitudinally extending border portions which are formed along the side edges of the support belt. A row of holes through at least one of the border portions passes over a vacuum chamber. Thus, air is evacuated through the grooves and out through the holes to the chamber.

Abstract: A photographic exposure apparatus and method for preparing production artwork of an image to be reproduced by photoengraving. The apparatus includes a movable panel superposed on a stationary plate for supporting a film containing an image to be reproduced in contiguous contact with a light sensitive sheet superposed on the stationary plate. Film registration indicators at least on the stationary plate permit successive identical registration of the film and at least one light sensitive sheet. An orbital motion guide and a linear motion guide, separately connected with driving motors and separately connected with the film support panel, are selectively manually adjusted and the respective motor energized for moving the film support panel in a predetermined path of predetermined magnitude during exposure of the image on the light sensitive sheet.In an alternative embodiment, the image is projected on the light sensitive sheet when attached to the film support panel by an overhead projector.

Abstract: A photographic reproportioning apparatus for changing one dimension of a two-dimension image projected on a photosensitive member having a main travel board supporting a sub-travel board for movement in a linear path. The boards are shielded from a light source with an opaque mask having an exposure window to expose the photosensitive member as it moves relative to the window. Motion transmitting structure operates to move the sub-travel board at the same speed or less than the speed of the main travel board. The motion transmission structure has an adjustable speed control bar connected to a first drive mounted on the main travel board. The first drive operates a second drive mounted on the main travel board and connected to the sub-travel board. The speed of movement of the first drive depends on the angular position of the speed control bar relative to the longitudinal path of movement of the main travel board and the speed of the main travel board. The first drive also rotates a wheel.

Abstract: An apparatus is disclosed for alternatively positioning a quartz or pinpoint light above a vacuum printing frame in a lithographic process. Either a quartz or a pinpoint light is required to produce fine line contacts, duplicates and reverses which are subsequently arranged in the desired orientation and transferred onto a printing plate for offset printing. The apparatus is located over a vacuum printing frame, or similar device, and has both the quartz light and pinpoint light attached to a movable housing. The housing is movable along two rails so as to accurately position either of the lights in its proper position over the printing frame. Movement of the housing is initiated by the operator and ceases when the housing contacts a limit switch.

Abstract: An illuminator including an internally reflecting light conduit and a light source to illuminate at least one of its ends. The longitudinal surface of the light conduit has a coating arranged in desired geometry to allow the escape of light from the conduit in accordance with the geometry to illuminate an object as desired. The coatings disclosed are a diffuse material to scatter light internally of the conduit, and a transparent material of refractive index greater than that of the conduit.

Abstract: An apparatus for producing from a photographic transparency a contact copy that is controllably elongated or compressed in one dimension only. The transparency and a photosensitive film sheet are separately transported at different linear speeds past an elongated illuminated slit by a pair of drive rollers that are driven at different rotational rates. Segmented pressure rollers keep the transparency and film sheet in contact with their respective drive rollers during transport.A differential speed drive mechanism is used to rotate the drive rollers at different speeds. This comprises a pair of complementarily tapered shafts, coaxially attached to the respective drive rollers, together with an O-ring that is caught between the shafts at a selectable axial location. The ratio of the tapered shaft diameters at the location of the O-ring establishes the relative rotation rate of the drive rollers, and hence the extent of dimensional distortion of the produced copy.

Abstract: An apparatus in which an article is illuminated by a light source moving thereacross. Vibration of the light source is minimized during the movement thereof.

Abstract: A slit exposure device of the type in which an original carrier is fixed and an optical system is movable. A driving force transmitting member adapted to move an optical system is passed over output shafts, and rotation of the output shafts causes two groups of optical elements to be reciprocated at a speed ratio of 2 : 1. One of the movable groups of elements requires that an electric cord be connected thereto, wherein one end of the electric cord is fixed, the direction of the cord being changed during movement by means of a rotatable member.

Abstract: An apparatus having a first table and a second table carrying a negative and photosensitive film under a member having an elongated slit. A light source projects light through the slit to expose the film as it moves under the slit. Motion transmitting control structure is operable to move the second table at a speed which is equal to or less than the speed of the first table. The motion transmitting structure has an angularly adjustable arm connected to the first table. A movable member located in a guideway is connected by a cable to the second table and engageable with the arm whereby on movement of the first table the arm moves the movable member which in turn moves the second table. The speed of the second table relative to the speed of the first table depends on the angular position of the arm. The apparatus has an accessory for changing a linear image to an arcuate image.

Abstract: An electrophotographic copying apparatus with an original support table arranged on the top of the housing to carry out a reciprocating linear movement out of and back to a home position whereby a copy sheet moved in synchronism with the table is exposed line by line to the original.

Abstract: An electrophotographic copying apparatus with an original support table arranged on the top of the housing to carry out a reciprocating linear movement out of and back to a home position whereby a copy sheet moved in synchronism with the table is exposed line by line to the original. The table includes a transparent table plate hinged along one longitudinal side edge to a carriage moving along one upper side edge of the housing and guided on a single rail extending longitudinally in the housing on said side, the opposite side of the table plate being pointwise supported relative to the housing so as to be pivotable around the hinge connection with the carriage to provide access to the interior of the apparatus.

Abstract: Controlled-distortion photocopying apparatus comprises a bifurcate drive mechanism the forks of which are angularly adjustable with respect to each other. Each fork propels a film carriage along a path normal to an exposure slit provided in a film mask disposed between the film carriages and a light source. A transparency to be copied is carried beneath the exposure slit by one carriage and a sensitized film carried beneath the transparency by the other carriage. The dimension of the photocopy normal to the long dimension of the exposure slit is either decreased or increased according to which carriage carries the sensitized film and which the transparency; the magnitude of the dimensional change depending upon the angle between the forks of the drive mechanism.

Abstract: A cam system to drive an oscillating mirror used to keep the movement images projected onto the moving drum of a xerographic reproduction machine in register. The cam system uses a cam, a cam follower, a drive to move the cam follower to and from a start of scan position while in contact with the cam, and a device to rotate the cam about an axis outside the cam. With this arrangement when the cam is adjusted to alter the path of the cam follower, it is rotated about the center of curvature of the cam follower axis during rotation of the cam so that the cam follower always starts its path from the same start of scan position.

Abstract: A contact copying device includes first and second plates which are spaced from and substantially parallel with each other, one of the plates having a slot therein. A pair of pickup rollers are provided for feeding superposed films, one of which is unexposed and sensitized, and the other of which includes information thereon which is to be exposed onto the unexposed film. The feed rate of the films past the slot is controlled and varied in accordance with the amount of light required to expose the sensitized film by a source of electromagnetic energy spaced from the slot.

Abstract: A carriage drive apparatus comprising a carriage, a drive mechanism to drive the carriage in one direction, a shaft rotatable at a constant speed, an overrunning clutch mounted on the shaft, and at least one lever connecting the clutch and the carriage, the lever pivoting about the shaft. The arrangement is such that on movement of the carriage in the one direction, the lever is moved, but is prevented from rotating about the shaft at greater than the given speed by the overrunning clutch. A plurality of levers may be employed. The apparatus is particularly useful for providing controlled deceleration during the return scan of a scanning lamp carriage of a reproducing machine.

Abstract: A portable photographic exposure apparatus for making reproductions of loft drawings, body drafts or the like directly from the drawing table on which the drawing is made. A wheeled cabinet structure has a horizontal supporting surface, the height of which is adjustable to the height of a drawing table, with an exposure unit adapted to be mounted on the supporting surface and containing a light source, a set of electric motor driven wheels, and a source of static electricity. The exposure unit is driven over the drawing table to expose a sheet of film which is laid over the drawing on the drawing table to reproduce the drawing. Static electricity projected by the exposure unit presses the film firmly against the drawing to be reproduced. The electric motor is reversible to return the exposure unit to its supporting cabinet. The apparatus may also be used to expose a negative which is subsequently processed to provide positive reproductions of the loft drawing.