Abstract: A molded hose branch of rubber includes an assembly formed by slipping completely vulcanized rubber hose lengths with ends onto free ends of a plastic tubing branching piece. The assembly is placed into a mold, and a thermoplastic material, for instance a blended mixture of polypropylene and EPDM, is injection molded around the assembly so as to join the thermoplastic material to the rubber hose lengths. This results in a sleeve around the rubber hose lengths and free parts of the tubing branching piece between the ends of the rubber hose lengths.

Abstract: A method for producing molded hose branches of rubber and a molded hose branch produced according to the method, includes slipping completely vulcanized rubber hose lengths with ends onto free ends of a plastic tubing branching piece for forming an assembly, placing the assembly into a mold, and injection molding a thermoplastic rubber material in the form of a blended mixture of polypropylene and EPDM around the assembly for joining the thermoplastic material to the rubber hose lengths for forming a sleeve around the rubber hose lengths and free parts of the tubing branching piece between the ends of the rubber hose lengths.

Abstract: An annular resilient body of fiber composite material for vibration-insulating support of drive assemblies includes at least one wound body having a circumferential direction and a loading direction. The at least one wound body includes a plurality of wound concentric layers formed of synthetic resin impregnated fibers extending in the circumferential direction and transverse to the load direction, and at least one layer of fibers extending at an angle relative to the concentric layers. Force-inducing fastening elements are disposed on two opposite sides of the at least one wound body. The fastening elements are formed of metal brackets at least partly encompassing the at least one wound body and elastic rubber layers bracing the metal brackets against the at least one wound body.

Abstract: A bearing for the elastic support of machines includes a rigid fiber-reinforced plastic frame having a primatic cross section and upper, lower and lateral frame walls. Rubber cushions are each vulcanized onto a respective one of the lateral walls and symmetrically disposed relative to each another. A carrier supports the rubber cushions. A retaining bolt for a machine passes through the upper frame wall. The retaining bolt has an enlarged base and an outer surface disposed in the frame. Plastic material uniformly coats the outer surface of the retaining bolt inside the frame. Vertical supporting walls supported on the enlarged base support the retaining bolt against forces tending to pull the retaining bolt out of the frame.

Abstract: A deformable drive shaft includes drive side and driven side connections and a flexible intermediate section interconnecting the connections, the flexible intermediate section being formed of an alternating sequence of disc-shaped rigid segments and disc-shaped flexible segments, the formed rigid segments having surfaces with complementary funnel-shaped projections and funnel-shaped depressions formed thereon, the funnel-shaped projections of a given formed rigid segment extending through an adjacent flexible segment into adjacent respective funnel-shaped depressions of the next formed rigid segment.

Abstract: A co-oscillating, volume-changing resonator in the form of a silencer, includes a lens-shaped housing formed of a material having a given flexural stiffness, the housing being arched defining an evacuated cup-shaped cavity formed therein, and a coating layer completely surrounding the housing, the coating layer being formed of a material having a flexural stiffness being at most one-third of the given flexural stiffness of the material of the housing.

Abstract: A co-oscillating, volume-changing resonator in the form of a silencer, includes a lens-shaped housing formed of a material having a given flexural stiffness, the housing being arched defining an evacuated cup-shaped cavity formed therein, and a coating layer completely surrounding the housing, the coating layer being formed of a material having a flexural stiffness being at most one-third of the given flexural stiffness of the material of the housing.

Abstract: A homopolymer or copolymer which contains, as a monomer unit, at least one styrene of the formula ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 independently of one another denote hydrogen, fluorine or partly or completely fluorinated alkyl or alkoxy andR.sup.4 and R.sup.5 independently of one another represent hydrogen or fluoride, the total number of fluorine atoms in the radicals R.sup.1 to R.sup.5 being at least 3 and the total number of carbon atoms in the radicals R.sup.1 to R.sup.3 being at most 8. The homo- or copolymers can be prepared by vinyl polymerization. They are useful as lenses or other components in an optical system where they have a refractive index n.sub.D of 1.42 to 1.55 with an Abbe number v.sub.D of 30 to 50.

Abstract: Thermoplastic aromatic polyesters comprising cocondensed bisphenol residues generally have a refractive index n.sub.d of from 1.60 to 1.66, an Abbe coefficient v.sub.d of from 27 to 21 and a color triplet of about 5.1, 0.1, O and are excellent starting materials for the production of optical components, particularly high quality lenses for still and cine cameras.