Abstract: A method and machine for reproducing a picture are disclosed, in which a color original picture is scanned and the analog original picture signal thereby produced is broken into n separation picture signals, which are then digitalized. One of these separation picture signals is then stored in its entirety in a memory, while the others are sampled according to regular patterns, the sampled values being stored in the memory. Then digital output separation picture signals are read out of the memory, by reading out the first separation picture signal without alteration, and by reading out the others while interpolating between the stored values. The output signals are then used to record a reproduction picture. In embodiments, the entirely-stored picture signal can be a gray signal, while the sampled picture signals are color signals; or the entirely-stored picture signal can be a green signal, while the sampled picture signals are red and blue color signals.

Abstract: In a clutch release device, a clutch release lever engages one ring of a clutch release bearing, and the bearing ring and release lever are formed to inhibit relative rotation therebetween. For this purpose, the bearing ring may have a polygonal outer surface, in which case the release lever may have parallel flanges between which opposite parallel surfaces of the polygonal section of the bearing ring may be inserted. Alternatively, the release lever may have a wedge shaped portion adapted to engage a braking surface of the bearing ring, formed of a plastic material. In a further modification, the bearing rings have grooves or corrugations in a radially extending surface and adapted to be engaged by one or more projections on the clutch release lever.

Abstract: In a multi-part plastic cage having a comb part with a plurality of axially extending webs adapted to engage a cover part, the cover part has recesses for receiving the ends of the webs, to absorb radial forces. The parts are joined by pins extending from one of the elements into recesses in the other, adapted to be joined by ultrasonic welding at positions spaced from the web ends, so that the pins are subject only to axial loading.

Abstract: An installation for storing and recovering heat energy having a principal application in solar power stations.The heat produced is stored in a storage reservoir when the converted energy demanded is less than the heat energy produced, and recovered in the opposite case, these operations being carried out entirely automatically. The heat transfers are effected through a thermofluid able to flow by streaming over containers of any shape, enclosing a heat storage substance, and disposed loosely or methodically in said storage reservoir.

Abstract: An electro-optical display device having an assembly of individual, electrically addressable display elements arrayed in a plurality of rows and columns, and a corresponding array of lenses, each of these display elements aligned with and on the optical axis of a respective one of the lenses with its reflective display surface facing the lens, and a screen for receiving the image projected along the plurality of optical axes, the elements displaying the images in accordance with illumination reflected therefrom, wherein the improvement comprises introduction of illumination from the non-reflective side of the display elements into the assembly, and wherein illumination-directing means outside of the optical axes are provided for reflecting the illumination onto the respective reflective display surfaces of each respective display element.

Abstract: In a rolling bearing wherein rolling elements radially engage a bearing ring, a separate flange ring is positioned to inhibit axial movement of the rolling elements. The flange ring is held axially and radially by a retaining ring having a first arm that extends into an annular groove of the bearing ring and a second arm that extends axially outwardly of the bearing from the first arm, to fill the intermediate space between the bearing ring and the flange ring. The end of the last mentioned arm is bent radially inwardly to axially engage the end face of the flange ring.

Abstract: A combination attache case, handbag, shoulderbag and shoulder-supported attache case, the attache case having carrying handles, a detachable shoulder strap and at least one external pocket for receiving the handbag, the shoulder strap when detached from the attache case being adapted for re-attachment to the handbag which is then usable as a shoulderbag separate and independent of the attache case, this combination including mating fasteners for releasably joining the handbag to the attache case when the handbag is in the attache's external pocket for protection against loss or theft of the handbag.

Abstract: An electronically addressed electro optical display device of the type in which an electrical signal containing intelligence is translated into alphanumeric, graphic and pictorial images on an electro optical display includes an array of short focal length lenses, an array of electronically addressed electro optical display elements, each of which is aligned with and in the optical path of a respective one of the lenses and a screen onto which the images on the display elements are projected by the lenses. Where the electro optical display elements are of the passive type in which images are formed by selectively modulating the transmission, reflection or scattering of light, an array of light sources is employed located so as to illuminate the array of electro optical display elements.

Abstract: An horizon projection device for an aircraft simulator.The device comprises an aerial image 4 of a part of the Earth's surface, an optical image projector comprising a variable magnification system 13, an optical scanning device 18 and a wide angle projection lens 17. The optical system 13 forms in the focal plane of the wide angle lens 17 an intermediate image whose dimensions depend on the magnification. Controls responsive to the altitude, to the attitude and to the heading simulated by the pilot act on the magnification of the optical system 13, particularly to correct an apparent altitude variation due to the shift between the eyes of the pilot and the wide angle lens, during simulation of the aircraft going over on to its back.

Abstract: A clutch release bearing for attachment to a diaphragm spring declutching member, the bearing comprising an outer race and an inner race, an annular series of rolling elements which roll on the raceway of each race to transmit thrust therebetween, one bearing race having a radially extending shoulder for engagement with a diaphragm spring declutching member and a sleeve attached to that race for rotation therewith about the axis of the clutch, which sleeve extends axially for connection with the side of the diaphragm spring declutching member remote from the bearing, the other bearing race having a radially extending shoulder on which a clutch operating member can act to move the bearing axially to engage and disengage the clutch.

Abstract: A method and apparatus for determining graphical coordinates includes a grid of parallel spaced conductors, a switch in series with each conductor, a cursor having an alternating magnetic field for inducing an electric current in conductors over which it is passed and means for selectively closing the conductor switches to enable induced current flow in only one conductor at a time. The change of phase of current between conductors on either side of the cursor resulting from a circular magnetic field is detected for registering a count in a counter indicative of a coarse cursor distance from an origin axis. A count equal to a fine measurement of the distance of the cursor from a proximate conductor is added to the coarse distance count to derive a graphic coordinate.

Abstract: A slide bushing, adapted to be sprung into a round housing bore, is formed of a spring steel band having a thickness between 0.2 and 0.5 millimeters, and is provided with a plastic antifriction layer on the inner surfaces thereof. The slide bushing, when not installed, is in the form of an ellipse having a ratio of length between the major and the minor axes of 1:0.9, with the minor axis intersecting the slit.

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 ajoining faces, so that the rolling elements abut the sides of the ridge. One of the rows of rolling bearings has twice as many rolling elements as the other row.

Abstract: In a longitudinally moveable antifriction bearing having an endless row of rolling elements, with a zone for loaded rolling elements, a return zone for unloaded rolling elements and reversing sections joining the respective loaded zones and return zones, flexurally elastic tongues are provided for directing the rolling elements onto and away from the loaded zone.

Abstract: An electric horn is disclosed which has two electromagnets which are alternately and repeatedly energized so as to move a diaphragm to and fro in opposite directions. As a particular feature, a controller is disclosed which energizes these electromagnets at a frequency which is dependent upon ambient air temperature, so as to keep the wavelength of the emitted sound constant to provide a better match for the horn trumpet of the electric horn and cause better resonance therewith.

Abstract: A ball bearing for linear movement on a shaft has a cage with oval guideways, and an outer sleeve surrounding the case. The cage has axially extending raceways for guiding loaded balls, the ends of the raceways joining radially outwardly directed transitions. The transitions are weakened by transversely extending grooves or slots, to provide resilience. The raceways may be axially extending radially inwardly directed ridges having central axially extending grooves, and the transitions may have V-shaped recesses with their apices at the ends of the grooves, to define two-point contact with the balls in the transition area of the bearing. A split sleeve may surround the outer sleeve for additional support.

Abstract: A ball bearing adapted for axial movement on a shaft is comprised of a cage having guideways defining endless paths having axially extending portions for loaded and unloaded balls, and semicircular end portions. An outer sleeve surrounds the central portion of the bearing and defines races for balls in the endless paths. End rings on the axial ends of the bearing radially outwardly cover the semicircular guideway portions. The semicircular guideway portions have outwardly convex bottoms, and the end rings have concave recesses in their inner surfaces aligned with the semicircular guideways. The convex portions of the guideways and the concave portions of the recesses have common centers of curvature extending parallel to the bearing axis and displaced outwardly therefrom.

Abstract: A mandrel for producing connecting sockets at the end of thermoplastic pipes, the mandrel containing a first and a second row of retractable segments and apparatus for actuating these segments. The apparatus comprises a first and a second actuating bush arranged so as to move axially on a central shaft. The segments of the first and second rows of segments are pivotably mounted on bushes by means of parallel, axially displaced joints. Support surfaces, which are orthogonal to the mandrel axis, serve to hold the segments during their radial movement.

Abstract: A laboratory centrifuge for producing suspensions, sediments and the like, and for carrying out washing and similar processes, in which a motor-driven vertical shaft is arranged in a housing, said shaft carrying a shaft head on which magazines or such are pivotably mounted for receiving sample containers. The shaft head can be driven in either of two opposing directions and has two brackets arranged symmetrically to the axis of rotation the outwards extending arms of said brackets carrying an axle on which the magazines are pivotably mounted with axial play. The width of the magazines is slighter than the distance between the two bracket arms, and a locking device is present between the bracket arms and the magazines, becoming effective when the magazine abuts the respective bracket arm.

Abstract: A high speed line printer having a number of sets of hammers; one hammer for each character position defining a line of print, which coact with a moving type band. Each hammer time shares one of a number of drive circuits with others of the hammers in a set. A line may be printed in the time that a type font on the band moves past any particular character position.