Abstract: The travel of a fabric web is corrected by an image acquisition from a region thereof including a guidance criterium which can be interrupted to produce a single row of image points, the signals of which are digitalized and compared with a reference signal by relative shifting of the stored signals in two shift registers. The number of shifts required to bring about correlation is determined as a measure of the actual position of the web and compared to a setpoint position for operation of an effector restoring the web to its set point position.

Abstract: A device for reading code lines on a moving carrier in which the lines extend transverse to the direction of movement. The reading head extends across the web and has a row of sensors subdivided into groups. The sensors of each group have a length equal to the maximum length of the coding traces and the total row has a substantially greater length so that the sensors are subdivided along the row into groups. The signals from sensors of preceding groups in a direction of signal flow along the row are summed e.g. at operational amplifiers before being summed with the corresponding sensor outputs of subsequent groups.

Abstract: In an apparatus of manufacturing diaphragms, a layer of a difficulty flowable metal powder is applied to a support, a wire net is rolled onto the powder layer and the latter is compacted at the same time and the metal powder is fired at 800.degree. to 1500.degree. C. in an oxidizing atmosphere. In order to impart to the diaphragms a constant thickness, strength and density, the metal powder is uniformly distributed and applied as regards its bulk volume to the support and the powder layer is moved under a distributing roller rotating opposite to the direction in which the powder is fed.

Abstract: A material for composite sliding surface bearings having a plastic sliding layer comprises a metallic backing layer and a sliding layer that is joined to the backing layer and consists of a matrix-forming fluorine-containing polymer, in which a metal powder having a high affinity to fluorine is finely dispersed. In order to increase the life, a fluorine-containing polymer is provided, which in an X-ray diffractogram prepared by CuK.alpha.-radiation has a sharp intensity peak at a double Bragg angle of 2.theta.=18.07.+-.0.03.degree. and has a melting range of 320.degree. to 350.degree. C. and contains metal fluoride and metal oxyfluoride.

Abstract: A material for composite sliding surface bearings having a plastic sliding layer comprises a metallic backing layer and a sliding layer that is joined to the backing layer and consists of a matrix-forming fluorine-containing polymer, in which a metal powder having a high affinity to fluorine is finely dispersed. In order to reduce the friction torque and the wear rate, the fluorine-containing polymer contains metal fluoride and metal oxyfluoride and consists of monoclinally crystallized PVDF, amorphous PVDF and a novel polymer, which in an X-ray diffractogram prepared by CuK .alpha.-radiation has a sharp intensity peak at a double Bragg angle of 2.theta.=18.07.+-.0.03.degree. and has a melting range of 320.degree. to 350.degree. C. and is free of ortho-rhombically crystallized PVDF.

Abstract: In a process of producing composite materials consisting of sheet metal plates, metal strips and foils and provided with a skeleton surface structure, a layer of a metal powder which is difficultly flowable and consists of irregularly shaped particles is applied to a continuously moved metallic carrier layer and is bonded to said carrier layer by cold roll cladding and is sintered in a reducing atmosphere at temperatures of 600.degree. to 1000.degree. C. In order to produce composite materials in which the skeleton structure constitutes a layer that is of uniform thickness throughout the surface and is firmly bonded to the carrier layer, the metal powder is uniformly distributed and applied as regards its bulk volume using a distributing roller, which rotates opposite to the main direction of movement of the carrier layer, whereby a uniform thickness is obtained.

Abstract: For some applications of slide layers, for example in connecting rod bearings of internal combustion engines, for individual sites of a formed piece, high load bearing capability are required while for other places of the same formed piece good embedding abilities are demanded. A composite material with a slide layer applied by cathode sputtering of a tightly cohesive matrix and an insoluble component distributed statistically in it, is adapted to these opposite demands in that the diameter of the particle of the insolutble material has gradients at predetermined sites, which extend parallel to the surface of the slide layer, and to which slide layer hardness gradients correspond. These gradients are generated during the cathode sputtering process in the substrate to be coated to form a growing slide layer having temperature gradients which are maintained and which extend parallel to the substrate surface.

Abstract: In a process of manufacturing diaphragms, a layer of a difficulty flowable metal powder is applied to a support, a wire net is rolled onto the powder layer and the latter is compacted at the same time and the metal powder is fired at 800.degree. to 1500.degree. C. in an oxidizing atmosphere. In order to impart to the diaphragms a constant thickness, strength and density, the metal powder is uniformly distributed and applied as regards its bulk volume to the support and the powder layer is moved under a distributing roller rotating opposite to the direction in which the powder is fed.

Abstract: Sliding layers overlays produced by cathode sputtering comprise a matrix-forming metallic material and at least one other material which is substantially insoluble in the matrix have greatly improved mechanical and corrosion resistance properties, if the insoluble material has a lower melting point than the matrix material, and if the diameters of the particles of the insoluble material are statistically normally distributed with mean x<0.8 .mu.m. Such overlays are produced with the temperature of the substrate maintained below 150.degree. C. during the sputtering process. Coating rates of >0.2 .mu.m [of layer thickness] per minute may be used informing such overlays.

Abstract: For some applications of slide layers, for example in connecting rod bearings of internal combustion engines, for individual sites of a formed piece, high load bearing capability are required while for other places of the same formed piece good embedding abilities are demanded. A composite material with a slide layer applied by cathode sputtering of a tightly cohesive matrix and an insoluble component distributed statistically in it, is adapted to these opposite demands in that the diameter of the particle of the insoluble material has gradients at predetermined sites, which extend parallel to the surface of the slide layer, and to which slide layer hardness gradients correspond. These gradients are generated during the cathode sputtering process in the substrate to be coated to form a growing slide layer having temperature gradients which are maintained and which extend parallel to the substrate surface.

Abstract: In a composite material for sliding surface bearings, a rough metallic surface is provided with a polymeric matrix, which forms a friction contact or sliding layer over the rough base surface. To increase the wear resistance, the matrix contains zinc sulfide and/or barium sulfate in a particle size from 0.1 to 1.0 .mu.m and an average particle size of 0.3 .mu.m.

Abstract: A material which is intended for use in sliding surface bearings comprises a metallic backing, a porous metallic substrate layer applied to said backing, and a PTFE-filler mixture, which completely fills the pores of the substrate layer and constitutes an antifriction layer. The bond strength between the antifriction layer and the substrate layer is improved by coating that surface of the substrate layer which faces the antifriction layer with a primer.