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: A light amplification device displaying particular utility in the display of micro intelligence. In a known light amplifier construction employing transparent sheets between which an electric field is impressed, and which employs a photoconductive sheet and an electrically optically active sheet such as a liquid crystal sheet, a novel lattice member is inserted between the photoconductive sheet and the liquid crystal sheet. In one embodiment, the lattice is defined by a plurality of metallic studs mounted in a dielectric sheet. The studs localize the electric field impressed upon the liquid crystal sheet. The resultant display is a gravure display, the studs defining the gravure points. In several embodiments, the location and form of the gravure points are varied. Color displays are also made. The introduction of the lattice lowers the power requirements of the light amplifier.

Abstract: A snap cage for a bearing wherein the diameter of the peripheral surface of the cage, viewed in axial direction is diminished, or the diameter of the bore surface of the cage is augmented, towards the web ends, the ends of the webs being formed such that the faces of the web ends lie on one side of the pitch circle.

Abstract: A metallic heat exchanger for heat transfer between a first medium flowing in tubes and a second medium flowing about the tubes and within an outer housing, the device including internal walls which divide the housing into three chambers with outlets and inlets to define a single continuous passage, the tubes extending through the chambers such that counter-flow heat exchange occurs in the first chamber, parallel flow heat exchange in the second chamber, and counter-flow heat exchange in the third chamber.

Abstract: An apparatus for use as both a camera and a viewer. As a camera, light from an object is broken up by a planar array of N lenses into N identical images which fall onto an opaque mask. A small aperture lies within each image, but at a different relative zone so that the apertures are non-homologous with respect to the image. Light passing through the apertures strikes virgin photographic emulsion of a lensfiche. The lensfiche is indexed and the process repeated for the next object. After emulsion development, the lensfiche is sequentially illuminated from the rear and each object (macroscene) sequentially reconstructed by projection on a viewing screen. For one embodiment, the method of recording consists of forming N identical and non-overlapping images, taking one portion from each of the N images, the N portions being non-homologous and dispersed from each other, and photographically recording N non-homologous portions.

Abstract: A holding disk, having, in the center, a sleeve-shaped section provided with a thread and, at the outer periphery, an annular flange running in radial direction and displaced axially in relation to the sleeve-shaped section. The connecting section between the sleeve-shaped section and the annular flange joining the end of the sleeve-shaped section is turned away from the annular flange.

Abstract: A temperature sensor comprises a thin layer of niobium nitride with a dis-ordered structure deposited on a thermally conductive electrically insulating substrate and terminal electrical contacts. The layer of niobium nitride may be deposited by reactive cathodic sputtering on the electrically insulating substrate.

Abstract: A ball bearing with a cylindrical ball cage intermediate a shaft and outer shell, and alternately spaced longitudinal load portions and ball-return paths in the bore of the shell, has additional longitudinal recesses in the bore for receiving with play a mating longitudinal rib on the cage, which permits restricted lateral and circumferential movement of the balls relative to the shell during longitudinal movement of these balls.

Abstract: A rolling bearing assembly has inner and outer members, rotatable with respect to one another, and defining a pair of races therebetween. Each of these members has a flange-shaped portion for mounting the respective member. A separate row of rolling bearings is provided in each of the races. The outer member is formed with separable ring-shaped portions defining the running surfaces of the two races, the separable portions forming an inwardly directed annular ridge under adjoining faces, so that the rolling elements abut the sides of the ridge. One of the rows of rolling bearings may have a substantially larger number of rolling elements than the other row.

Abstract: A clutch thrust bearing has thin-walled bearing members formed to define a race therebetween for receiving rolling bearing elements. One of the bearing members has a generally radially extending central wall portion, and an axially extending annular wall portion, the center portion defining one wall of the race and the axially extending portion extending away from the other bearing member. The one bearing member further includes a second thin-walled portion on the side of the bearing away from the other member, and axially spaced from the center wall portion of the same member. This thin-walled portion has a central depression for receiving thrust loads on the bearing, and the outer walls of this portion extend axially and are telescoped with the first mentioned axially extending wall. An elastic member is provided between the two center portions of the one member, and may be in the form of a split ring or an elastic material.

Abstract: A rolling bearing for lengthwise movement with respect to a shaft has a housing with a cage for guiding endless rows of rolling elements. Race rails extend axially in the housing for radially outwardly supporting rolling elements in the portions of the portions of the lengths of the rows thereof adapted to receive loads. The race rails have first sides with convex curvature in the axial direction, and second sides opposite the first sides that extend straight in the axial direction, the race rails being adapted to be assembled in the bearing with selected ones of the sides thereof being directed radially outwardly. Both sides of the race rails may have axially extending guide grooves.

Abstract: A device for incremental feed of the tool or workpiece in a machine tool of the kind in which feed is effected with a device having at least one rotating shaft, characterized by a rotating element fixed to the rotating shaft, a releasable coupling element and elements for moving the coupling element, the coupling element being situated so as to interact with the rotating element at a distance from the shaft in such a way that when the coupling element is engaged with the rotating element, the latter is rotated and thus effects a rotary motion of the shaft.

Abstract: In a shaft end bearing, the shaft end has a convex curved friction or sliding surface of revolution, and cooperates with a correspondingly curved concave friction or sliding surface. At least one of these surfaces has grooves inclined to the circumferential direction for effecting the dynamic build-up of fluid lubricant. The grooves are separated into two different annular zones spaced apart by a zone having no grooves and serving as a throttle.

Abstract: A linear-motion ball bearing assembly wherein a metal cylindrical shell has an inner bore surface defining load zones and outwardly spaced return passages for balls in endless raceways; the shell has outwardly extending longitudinal ribs, with plastic injection molded onto the bore of the shell to form guide walls for balls in the load zone and along the ribs of the shell to form return guide passages communicating with the load zone passages.

Abstract: A clutch disengaging device which includes a sliding sleeve assembly and a self-centering clutch pressure bearing having a stationary bearing ring resting against the sliding sleeve assembly. The clutch pressure bearing is centered in the process of engagement and held by suitable means in a radial direction, such as adhesive means on facing surfaces of the sliding sleeve assembly and the stationary bearing ring for bonding the facing surfaces together.

Abstract: A ball bearing comprising an outer sleeve with raceways formed therein, and having an axial bore and a retainer including a plurality of ball guideways distributed over the periphery thereof. The ball guideways comprise axial guideway sections and semicircular deflecting way sections connecting the axial guideway sections by pairs; the outer sleeve has a length which corresponds to the length of the axial guideway sections in the retainer, the retainer being made of synthetic material and projecting with the semicircular deflecting way sections beyond the outer sleeve; and end rings mounted on projecting sections of the retainer for covering the deflecting zone.

Abstract: The present invention relates to a self-pressuring radial friction bearing for both directions of rotation of a shaft; the bore surface of the bearing has pumping grooves that are inclined to the circumferential direction, and communicate via one of their ends with a space supplied with lubricant.

Abstract: A lubricating device for use in a rolling bearing having a lubricating supply disk rotating within a narrow space forming a communicating channel to the rolling bearing surfaces, and a retaining ring mounted in a non-rotating manner about the disk to form the narrow space communicating channel.

Abstract: A clutch release device for use with a thrust bearing has a sliding sleeve formed as a cylinder with a flange extending radially outward, and a transition shoulder between the cylinder and flange; a radially extending reference plane extends through said shoulder, and said flange has portions thereof displaced axially, with said reference plane being equidistant from said flange and said displaced portions.

Abstract: A linear motion ball bearing including an outer sleeve, a cylindrical ball-retaining cage within the sleeve with continuous raceways defined between the sleeve and cage, and a plurality of balls in these raceways, each raceway comprising a loaded axial race and a parallel unloaded return race, and two curved turn-around races connecting the axial races. The sleeve has, in the region adjacent each unloaded race, a longitudinal slot having a width greater than the diameter of the balls, and the cage having projections along the unloaded races for retaining balls from falling out of these races.