Abstract: Disclosed is a device for the insertion of microfiche cards into a microfiche reader comprising a plurality of microfiche cards, each card having an image aperture part and a blank part with a perforation in one of the two corner areas of the blank part, a magazine containing a plurality of microfiche cards, the magazine being equipped at a location corresponding to the perforation of the microfiche card with a shaft, releasable from the magazine, the shaft extending through the perforations in the microfiche cards as a holder and a rotational axis for movement of the microfiche cards, and being open on a first lateral surface adjacent the shaft and on a second lateral surface perpendicular to the first lateral surface and facing away from the shaft, a film stage and magazine stage arrangement adapted for receiving the magazine wherein the magazine is positioned on the magazine stage such that the first open lateral surface of the magazine is pointing toward the film stage and the distance between the shaft a

Abstract: A microfilm reader/printer has a plurality of interchangeable film carriers to accommodate microfiche of different sizes and format. The film carriers are normally latched into two orthogonally oriented pairs of spaced, parallel rails so that film movement is limited. However, if a film carrier is unlatched from said rails, one of the carriers may be interchanged for another.

Abstract: An X-ray microfilm reader comprises a microfilm medium holder for holding same in a working position and a light source disposed below the working position which reflects light from a dichroic mirror towards the microfilm medium through a condenser. The image from the microfilm medium passes through any one of a plurality of projecting lenses and through a coner and is thereafter reflected by an image mirror onto a screen for viewing by the user.

Abstract: There is disclosed herein apparatus for positioning rows and columns of microimage frames imprinted on a cassetted filmstrip for projection and display. The filmstrip is longitudinally movable in incremental amounts through an elongated cassette passageway, the passageway having a transverse aperture for permitting projected light to pass through a selected portion of the filmstrip for enlarged and focused microimage display.

Abstract: An image focusing apparatus for microfiche film readers and other optical systems has a lens holding apparatus which rests on a transparent or glass plate, a rotatable lens adjusting assembly in the lens holding apparatus, a shaft slidably and pivotally connected to the lens adjusting assembly, a knob on the shaft, and a shaft holder which fixes the position of the shaft with respect to the reader. The lens holding apparatus is universally mounted to the frame of the reader to enable the lens holding apparatus to move freely in response to changes in the angular disposition of the glass plate with respect to the horizontal plane. The lens adjusting assembly has an eccentric finger which translates the rotating motion of the knob and shaft into a vertical force, which moves the lens. The lens adjusting assembly has a barrel, a socket in the barrel and key slots along the socket. The shaft has a partially-spherical end and keys which slidably and pivotally fit into the socket and key slots.

Abstract: A microfiche reader according to the present invention includes a housing consisting of a hood portion and a base portion, a screen located within the hood portion and visible through the front end of the hood, a combined microfiche carriage and index holder, a lens assembly and a projection system. The combined microfiche carriage and index holder serves to accurately locate the microfiche with respect to the index grid. By reason of the fact that there is no relative movement between the index grid and the microfiche in use, it is always possible to accurately locate the microfiche with respect to the projection system by reference to the index grid. The index grid is illuminated by an index illuminating lens carried by the housing. The illuminating lens is located in a fixed relationship with respect to the projection path which again contributes to the facility with which the microfiche may be accurately located in the projection path.

Abstract: A microfilm reader for enlarged projections of any desired micropicture among a number of such pictures on a microfilm. The microfilm is interleaved between two movable plates. A slidable support for the image forming objective is pressed with a tensioned spring against the upper plate. The slidable support can be connected to a slide lever for effecting its placement in proper position. Two arms of a spring can be employed for mounting the slidable support and for tilting it around an axis essentially parallel to the cover plate.

Abstract: An aperture card reader is equipped with a unit detachably mountable on the main body for automatically feeding aperture cards. The aperture card can automatically be placed between presser plates while the unit is mounted on the main body or, alternatively, can be manually fed when the unit is detached from the main body. The aperture card is automatically fed between the presser plates with the card in a position in which the minor sides of the aperture card are oriented in the direction of feed, while the card can be manually placed between the presser plates by feeding the card in a position in which the major sides of the card are oriented in the direction of feed. The image of the microfilm mounted on the aperture card can be projected on a screen in a horizontal position when the card is fed automatically, or in a vertical position when the card is fed manually.

Abstract: A microfilm reader is provided which comprises two casings. The first casing comprises selection means for selecting a micropicture as well as means providing a projection beam for imaging the positioned micropicture through at least one selected orifice in the first casing. The second casing comprises at least one orifice for receiving the projection beam carrying the micropicture information and projection means for displaying the received micropicture information. The two casings can be attached in dual position and by proper positioning of mirrors the projection beam passes through matched orifices of the two casings. The remaining orifices are covered with covers.

Abstract: A film screen is perpendicularly slidably mounted on a first guide rail in a microfiche reader. This first guide rail is detachably mounted on a frame which in turn is slidably mounted on a second guide rail perpendicularly with respect to said first guide rail so that the two guide rails form a coordinate support arrangement for selectively displacing the film screen in two mutually perpendicular directions. The second guide rail is mounted on the base of the microfiche reader. The film screen and first guide rail can be easily detached from the frame and replaced by a film screen and first guide rail of different size which is then attached to the frame.

Abstract: A microfiche construction embodying Cassegrainian reflecting surfaces. A fixed projection sheet is provided with convex lenses on its top surface, the lower peripheries of which are internally mirrored. An indexable lensfiche is provided with sunken convex reflecting mirrors on its top surface which are optically aligned with corresponding upper lens of the projection sheet to define Cassegrainian surfaces. Light modulated by microimages on the lensfiche strikes the Cassegrainian surfaces and passes to a viewing screen. In an embodiment, the projection sheet carries both Cassegrainian reflectors.

Abstract: A microfiche viewer with a light projection path whereby different images on an individual piece of microfilm can be placed in the light projection path for viewing. The fiche is rectangular in configuration and is inserted into the viewer with the shorter side parallel to the front of the viewer. A rotatable base is attached to the bottom of the viewer which is designed to limit the angular rotation of the microfiche viewer.

Abstract: Apparatus for holding film strips of the type having a plurality of miniaturized film images carried thereon, wherein the apparatus is to be used with an optical system which illuminates and projects the images on an enlarged scale so that they can be viewed on a projection screen. The apparatus includes a rotary film holder or cassette having a number of concentric cylindrical segments defining a pair of coaxial cylinders, the segments being provided with grooves to permit insertion of a plurality of film strips in the cassette. The inner segments are longer than the outer segments so that portions of the radially outermost edges of the film strips are exposed and the outer edge of a selected film strip can be engaged by an edge drive wheel to permit the selected film strip to be moved partially out of and to be returned to the cassette.

Abstract: A reading device for viewing microfilms, transparencies, fiches, and the like, comprising a plate-shaped projection screen made of transparent material supported on a frame structure with the projection screen disposed in a slanted position relative to the horizontal. The screen has on the viewing side a frosted surface and on the opposite side prism-shaped parts. A source of light is disposed into the frame structure beneath a carrier for placing an article to be projected thereon. A mirror assembly is disposed in the frame structure to reflect light rays passed from the light source through the article to the prism-shaped parts and through the projection screen. The prism-shaped parts are disposed in lengthwise rows and have prism surfaces extending at an angle with respect to the opposite side of the projection screen for deflecting the light rays reflected from the mirror assembly so as to project an image of the article within an angle converging toward a viewer situated above and in front of the screen.

Abstract: An overhead projector comprises a stage having at least two guide members fixed to its upper surface and movable longitudinally and transversely above a projector body, a file page having a plurality of slide films fitted therein in rows and columns and pairs of reference edges spaced apart at equidistances from crosswise and lengthwise center axes of the file page and adapted to abut against the guide members of the stage for positioning the file page relative to the stage, and positioning means for determining movements of the stage at determined intervals. The slide films in the file page are spaced apart at distances correspondingly equal to the movement distances determined by the positioning means. The projector is capable of correctly positioning a file page relative to the stage with ease after the file page has been rotated or turned upside down for changing over the projection methods of the projector, such as reflection projection and transmission projection.

Abstract: A variable magnification device capable of varying magnification of projected images of information bearing media which includes a plurality of interchangeable projection lenses having different focal lengths, a change-over plate for selectively bringing the projection lenses into a predetermined projecting position, and a focusing adjusting ring normally kept out of contact with said projection lenses and capable of engaging for focusing adjustment only the selected one of the projection lenses which has been brought to the predetermined projecting position, and thus once adjusted for focusing, the selected one of the projection lenses is not required to be re-adjusted for focusing even when returned to the predetermined projecting position after having been moved through other positions for further changing over.

Abstract: An indexing construction for microfiche elements of the type wherein the microfiche is provided with integral lens elements to define a lensfiche. The improvement comprises altering surface(s) of the microfiche to thereby define a plurality of indexing nodules. These nodules cooperate with complementary nodules on either a viewing screen or a hardness member. By virtue of this construction both alignments of the lensfiche and indexing thereof relative to a viewing screen are facilitated.

Abstract: A microfiche reader according to the present invention includes a housing consisting of a hood portion and a base portion, a screen located within the hood portion and visible through the front end of the hood, a combined microfiche carriage and index holder, a lens assembly and a projection system. The combined microfiche carriage and index holder serves to accurately locate the microfiche with respect to the index grid. By reason of the fact that there is no relative movement between the index grid and the microfiche in use, it is always possible to accurately locate the microfiche with respect to the projection system by reference to the index grid. The index grid is illuminated by an index illuminating lens carried by the housing. The illuminating lens is located in a fixed relationship with respect to the projection path which again contributes to the facility with which the microfiche may be accurately located in the projection path.

Abstract: The contents of a book, magazine or the like are digitally encoded onto a memory, and the memory is removably insertable into a portable book-like apparatus whereby the encoded information can be displayed on a screen of the apparatus.

Abstract: A method of making copies of information sets of the type carried by microfiche elements having integral lenses on one surface thereof. The copy is made by embossing the top surface of a plastic, planar blank to form the integral lenses. The bottom surface of the blank is provided with a thin, opaque coating. The coating is ruptured by a stamping block, the ruptured portions forming optical apertures in the coating. These apertures function in a manner analogous to developed images in a photographic emulsion. Thus, microfiche copies may be made without the use of silver bromide. The selective rupture process may also be employed in the duplication of motion picture film.

Abstract: Microfilm is inserted between two or more parallel, transparent, laterally invertible support plates placed in a light path emanating from a light source and travelling to a projection objective. The plates are placed in a tray which can be slided in two directions normal to the light path. The microfilm located more closely to the reader is in proper position for one or more projection objectives. For reading the microfilm located on the other side, the plates are inverted in order to bring this film in proper reading position.

Abstract: A viewer is provided which is especially adapted for viewing dental X-ray films taken of the mouth of a patient. The viewer is provided with a throat extending inwardly from the front thereof which vertically divides the housing into upper and lower sections. A display screen is provided on the front of the upper section of the housing with a light compartment for a light source on the side thereof. The light source includes a dichroic filter for filtering out the infrared rays of the high intensity light provided and a condensing lens for projecting the visible rays down through a film located in the throat to provide an image bearing beam. In the lower section of the housing, a mirror located below the film horizontally reflects the image bearing beam through a projection lens onto a second mirror which directs the image bearing beam rearwardly and upwardly onto a rear mirror located on the upper section of the housing opposite the screen.

Abstract: A microfiche reader according to the present invention includes a housing consisting of a hood portion and a base portion, a screen located within the hood portion and visible through the front end of the hood, a combined microfiche carriage and index holder, a lens assembly and a projection system. The combined microfiche carriage and index holder serves to accurately locate the microfiche with respect to the index grid. By reason of the fact that there is no relative movement between the index grid and the microfiche in use, it is always possible to accurately locate the microfiche with respect to the projection system by reference to the index grid. The index grid is illuminated by an index illuminating lens carried by the housing. The illuminating lens is located in a fixed relationship with respect to the projection path which again contributes to the facility with which the microfiche may be accurately located in the projection path.

Abstract: A microfiche reader with a compact housing having an upper housing portion or hood and a lower housing portion or base, has an upper surface which supports a fiche carrier in a projection plane. The hood has a lower surface spaced above the base to provide a work area for manipulation of the microfiche carrier. To further minimize size and overheating of the microfiche, a light source, condensing lens and mirror form a preassembled module which is located in the hood beneath and behind the projection screen and above the film plane. The projection lens and focus adjustment are carried by a slide or drawer which is movable between a position in registry with the light beam during use to a withdrawn position for easy access for changing lenses. The use of the light source module in the hood and the projection lens in the base enables the use of various size screen hoods on the same base without changing mirror angles in the base.

Abstract: A reader for a distributed-optical microfiche wherein each page of recorded intelligence is constituted by a reduced scale image that is dissected to form a pattern of dispersed bits. The several patterns representing the recorded pages are interlaced to produce a multi-page microfiche that is read back by irradiating and enlarging only a selected pattern of dispersed bits and projecting this pattern onto a screen. The reader includes a lens matrix formed by an array of individual lenslets, each optically aligned with a respective bit in the selected pattern to enlarge and project this bit onto a screen zone. Interposed between the lens matrix and the screen is an apertured melding mask having an array of openings corresponding to the array of lenslets and optically aligned therewith.

Abstract: A system for previewing and projecting slides that are stored in spaced, co-planar relation in a planar holder is disclosed. The slides are previewed, either individually or in a group, in their natural orientation without removing the slides from the holder. Projection of the slides to form a naturally oriented image also is accomplished without removing the slides from the holder. In the preferred embodiment, means are provided for moving the planar slide holder orthogonally with respect to the optical axis of the projection system. A slide indexing system is provided to allow the projectionist to select a particular slide for projection. The slide indexing system utilizes cooperative means on the slide holder and projector to achieve indexing and, if desired, other control functions. In an alternative embodiment, the projected image plane is vertical and can be rotated about a vertical axis at the projector without moving the base of the projector.

Abstract: A cover plate for a microform reader. The reader includes a carrier for holding a microform, with the cover plate being pivotally mounted on the carrier for movement between open and closed positions. A spring interconnects the cover plate and the carrier and coacts with an inclined surface in the reader to progressively add energy to the spring as the carrier is moved to a first position from a second position to enable the spring to automatically lift the cover plate as the carrier is moved towards the first position to permit the removal and insertion of a microform in the carrier.

Abstract: A microfiche reader in which the subject to be viewed and by which any selected area thereof can be quickly and easily brought into intersecting alignment with the light beam of the optical system of the machine, is carried by the upper one of two superimposed rigid frames that are mounted on the base of the machine by elongated ball bearing retainers interposed between stationary tracks fixed to the machine base and endwise movable tracks fixed to the lower one of the superimposed rigid frames, for movement in unison across the machine base along one of a pair of coordinate horizontal axes, and connected with one another for relative movement along the other one of said axes by similar elongated ball bearing retainers having rolling engagement with upper and lower tracks respectively fixed to the upper and lower rigid frames.

Abstract: Portable microfilm reader having a body with a microfilm holder, a projection lamp, a foldable reflecting mirror, a hinged cover, and a projection surface or screen on the inside of the cover. The invention provides means for automatically erecting the mirror when the cover is opened, and automatically folding the mirror when the cover is closed. Means is also provided for automatically turning the projection lamp off when the cover is closed.

Abstract: A method of making illuminating sheets for microfiche readers. The illuminating sheet includes light conducting channels in a base or carrier having low creepage and low coefficients of thermal and of humidity expansion which terminate at different points accurately located over the surface of the sheet. The channel termini have mirrors which reflect light and thereby illuminate microimages on a microfiche. The method includes embossing elongated channels of different lengths onto a transparent, plastic sheet by means of an embossing roll. The roll carries spaced discs, the discs having peripheries of different lengths to thereby form channels of different lengths. The channels are then filled.

Abstract: A microfiche structure consisting of a laminate of an opaque, apertured web sandwiched between two transparent sheets. The transparent material partially extends into each aperture to thereby define, for each aperture, an optical doublet. The laminate may be continuously formed by compression, as by rolls.

Abstract: A micro fiche indexer which shifts a fiche containing a plurality of images in horizontal rows both laterally and vertically under the influence of a single operating member that is actuated by the user. It comprises a screen on which an enlarged reproduction of an image on the fiche is cast together with a light source included as a part of an optical system, and a microswitch which cuts out the light source as the fiche is shifted to bring into viewing position a new image. The operating mechanism for causing the shifting includes a pushbutton mounted in a cabinet below the screen and which is carried at one end of a lever that is pivoted on a fulcrum intermediate its ends, whereby the other end of the lever raises an actuating panel which, due to its upward movement, first shifts a holder in which the fiche is mounted laterally from one station to another and at the end of a row, moves the fiche holder vertically from one row to another.

Abstract: A microfiche reader has a carrier which includes means for transporting a microfiche film with a rectilinear movement. The carrier has two plates of glass for receiving a microfiche between them, one of the glass plates being hinged to raise and lower relative to the other. As the carrier moves to one extremity of its rectilinear movement, the cover glass automatically swings on its hinge pin to open and thereby enable manual access to the microfiche between the glass. Regardless of how far the carrier does or does not move, near the extremity of the movement, this glass opening device has an ability to lift the cover glass to a position where its center of gravity closely approaches, but does not cross, the hinge pin.

Abstract: An indexing construction for microfiche elements of the type wherein the microfiche is provided with integral lens elements to define a lensfiche. The improvement comprises raising the lens elements with respect to the microfiche to thereby define a plurality of upstanding positioning and indexing nodules. These nodules cooperate with complementary nodules on either a viewing screen or a harness member. By virtue of this construction both alignment of the lensfiche and indexing thereof relative to a viewing screen are facilitated.

Abstract: An animated image presentation apparatus operable in conjunction with a multiple-image microrecord in which a plurality of interrelated images are recorded on a reduced scale in a manner whereby each image is dissected into a multiplicity of bits which are dispersed to form an image pattern that is distinct from and interlaced with the image patterns defined by the recordings of the other images. The apparatus includes a lens matrix disposed in parallel relation to the microrecord to project an image pattern in registration therewith onto a screen, the matrix being constituted by an array of lensettes that are dispersed on the matrix to assume positions that are optically aligned with the bits in the image pattern. The microrecord is indexed relative to the matrix to successively register in a predetermined sequence the image patterns recorded on the record with the array of lensettes for presentation on the screen at a rate providing an animated display.

Abstract: A microfiche editing device for mechanically aligning a portion of one microfilm with respect to a second microfiche along an optical path. The first microfilm may be a microfiche held and aligned by a rectangular toothed rack or a microfilm held and aligned by a double spool mechanism.

Abstract: A holding frame holds a microfiche. Guide rails mount the holding frame on the microfilm reader housing for movement along two perpendicular coordinate axes for moving selected portions of the microfiche held by the frame into position to be projected. An arresting device arrests the frame in selected positions and includes a stationary clamped structure on the housing and a cooperating releasable clamping structure on the frame. The clamping structure when not released clamps the clamped structure and thereby arrests the frame relative to the housing.

Abstract: An illumination distribution system for a microrecord reader in which information is optically extracted from the microrecord by a lens array. The microrecord is formed by a plurality of data sets recorded on a record medium, each set representing a reduced scale image of a distinct page of intelligence and being dissected into a multiplicity of data sub-sets which are dispersed on the medium. The illumination distribution system is constituted by a plurality of light-conducting fibers each acting to conduct light derived from a common source to a respective sub-set thereby illuminating the sub-sets of a data set from which information is being extracted, the remaining areas of the microrecord being un-illuminated, thereby avoiding the waste of the available light energy and conserving power.

Abstract: A microfiche or other form of microfilm record having a main set of images thereon which may be selectively projected onto a viewing screen. In order to facilitate the making of reproductions of the recorded images without interposing a mirror between the sensitive film or the plate of the reproducer and the image projection system, the microfiche incorporates a companion set of images each being a reversed image of the corresponding image on the main set whereby when a reversed image is projected, it may be directly reproduced to produce a nonreversed, readable copy.

Abstract: A micro information reader defined by a thin container open at one side. The open side receives a micro information carrier. The carrier and the thin container are provided with interengaging ridges which function as detents to index the micro information carrier with respect to fixed illumination sources and projection lenses on the reader.

Abstract: A microfiche having pinholes instead of lenses. The pinholes and thickness of the fiche are of such dimensions that the device functions as in the manner of a pinhole camera.

Abstract: An optical system for reading a microrecord in which a plurality of data sets are formed on a record medium, each set representing a reduced scale image of a distinct page and being dissected into a multiplicity of data sub-sets. The sub-sets, which together form a data set, are dispersed on the medium in accordance with a predetermined pattern, the dispersed sub-sets forming the plurality of data sets being interlaced with each other whereby each data set occupies a distinct position on the medium and may be optically extracted therefrom. The optical system includes an array of lensettes each constituted by a reflective concave element associated with a reflective spherical element, the elements of each lensette being optically aligned with a respective data sub-set whereby the image of the sub-set formed on the concave element is reflected by the spherical element onto a screen.

Abstract: A microfiche reader provided with a pair of lenses of different powers selectively and simultaneously shiftable into and out of alignment with the fiche projecting light beam. The lens in use rests by gravity on an X-Y fiche transport supported on a turn table. The lens shifting mechanism includes a device holding the lens in use firmly stationary despite both rotary and linear movement of the fiche transport. Simple linear movement of the lens shifting mechanism functions to elevate one lens while lowering the other gradually into contact with the fiche transport. The lens support assembly includes components for automatically adjusting the intensity of the light beam to provide the same lighting intensity on the image viewing surface for each lens. The lens support assembly is readily removable as a unit for servicing and the substitution of another assembly while the first is undergoing repair.

Abstract: A large number of characters are formed on a sheet such as microfiche. The characters are further divided into classes such as a class of Roman alphabet characters, a class of Japanese hiragana characters, a class of Japanese katakana characters and a plurality of classes of Chinese characters arranged phonetically according to their leading syllables. Each class contains a predetermined number of characters. The characters are arranged in an alternating arrangement on the microfiche which is movable relative to a mask formed with apertures in such a manner that at each position of the microfiche all of the characters of a corresponding class are displayed through the respective apertures of the mask. Class selection means comprising one or more switches control drive means to move the microfiche so that the desired class of characters is displayed.

Abstract: An optical projection apparatus employing lenses between 30 and 150 mils radius. The lenses are arrayed over a surface, near a photographic film which carries microimages. The microimages are projected through the lenses and against mirrors. The mirrors, termed folding mirrors, reduce the length of the projections in a direction along the optic axes of the lenses. The folding mirrors effectively reduce the throwing distance of the lenses thus reducing the thickness of the apparatus. The apparatus is also used to record.

Abstract: A library file of microfiche film comprises a plurality of spaced parallel film stored inside a cartridge. In a microfiche reader, a reciprocally moving extractor moves into and out of the cartridge to extract and return microfiche. An elevator control means selectively raises or lowers the cartridge relatively to the extractor, thereby selecting a particular microfiche. An interlock mechanism actuated by the extractor and selectively connected to the elevator control means prevents the elevator from moving after a microfiche is extracted and before it is returned to the cartridge.

Abstract: A film carrier device for a microfilm reader includes a rectangular transparent flat base plate having a pair of laterally spaced parallel longitudinally extending guide members located along opposite side top borders of the base plate. The rear inside faces of the guide members diverge rearwardly and have longitudinal grooves extending for the full lengths of their bottoms and the grooves may extend likewise for the full lengths of the guide member inside faces. A transparent cover plate is hinged along its forward edge to the forward border of the base plate and is swingable between a closed position overlying the base plate and a rearwardly upwardly inclined open position. A pair of laterally spaced film stops project upwardly from the base plate proximate its rear portions and a pair of leaf spring film engaging clips are disposed proximate the guide member front ends or proximate the film stops.

Abstract: A cartridge is provided for microfiche in the form of a box having a series of elongated rectangular pockets in a stacked array, one above the other and with exposed front openings. Each pocket is dimensioned to receive one microfiche. Cut-out portions are provided on opposite sides of the box to intersect the pockets and expose edge portions of each microfiche stored in the pockets. With this arrangement, appropriate friction wheels in the cut-out portions of the box can be provided on a stationary frame structure to eject a microfiche from the cartridge automatically and pass the same onto a microfilm viewer.

Abstract: A microrecord in which a plurality of data sets are formed on a record medium, such as a film surface. Each data set represents a distinct page or an equivalent body of intelligence and is constituted by a multiplicity of data sub-set each including at least one data bit. The sub-sets which together form a data set are dispersed on the medium according to a predetermined pattern. The dispersed sub-sets forming the plurality of data sets are interlaced with each other whereby each data set occupies a distinct position on the medium and may be optically extracted therefrom.

Abstract: The disclosure relates to a micro fiche transport means adapted to transport a micro fiche in rectilinear directions at right angles to each other for projection relative to a plurality of micro photos carried thereby; the transport means having a plurality of parallel rows of indexing portions disposed at right angles to each other and intersecting each other and also a rectilinear track means and a plurality of generally herring bone shaped cam means operable by a rotary cam member which is limited by a single or partial revolution clutch.