Abstract: The invention concerns a clamping and/or braking device with a housing, in which at least one plate-like element is held, supported at a first end opposite a stop area of the housing. A second end transfers clamping and/or braking forces to an object, or acts on a pressurizable element, which transfers clamping and/or braking forces to an object. The plate-like element has at least one bending area which is convex in the starting state, which is constructed pressure-resistant and nevertheless elastically deformable so that the bending area forms an elastic element between the stop area of the housing and a pressurizing end of the plate-like element. A pressure space is formed between the convex side of the bending area and the housing. Some embodiments include multiple plate-like elements.

Abstract: The invention relates to a clamping and/or braking device, in particular a pneumatically actuatable clamping and/or braking device, with a housing having a space in which a hydraulic medium constructed least in part as a solid body is accommodated, wherein the space for accommodating the hydraulic medium is delimited on one side by a wall of the housing and on the other by a clamping and/or braking element, and with at least one actuating element that acts on the hydraulic medium to produce a clamping and/or braking force which can be transmitted by the clamping and/or braking element to an impinging element. According to the invention, at least one actuating element is shaped like a pin or a spike. The actuating element is movable along a predetermined spatial curve, and acts on the hydraulic medium through an aperture in the wall of the housing delimiting the space for accommodating the hydraulic medium.

Abstract: The invention relates to a tensioning device, especially for machine tools, in which a deforming tensioning element acts on a clamping part with a clamping force which results from the deformation in order to fix or release a fixing element.

Abstract: The invention relates to a clamping and/or braking device with a base element (7) and a force-applying element (17), by means of which the generated clamping and/or braking forces can be transferred to an object (39), as well as at least two adjacent wall sections (3), which each apply force with an end region on the base element (7) and the force-applying element (17), and wherein the two or more adjacent wall sections (3) define an essentially sealed pressure chamber that can be pressurized with pressure or negative pressure, wherein the two or more wall sections (3) each have a bending region (3a), which is resistant to tensile force and nevertheless can be bent elastically so that the bending regions (3a) form an elastic element between the base element (7) and the force-applying element (17).

Abstract: The present invention relates to a safety device for reliably stopping weights, where a clamping system blocking the movement of the weight is controlled by a valve that works in cooperation with the weight body.

Abstract: The invention relates to a clamping and/or braking device with a base element (7) and a force-applying element (17), by means of which the generated clamping and/or braking forces can be transferred to an object (39), as well as at least two adjacent wall sections (3), which each apply force with an end region on the base element (7) and the force-applying element (17), and wherein the two or more adjacent wall sections (3) define an essentially sealed pressure chamber that can be pressurized with pressure or negative pressure, wherein the two or more wall sections (3) each have a bending region (3a), which is resistant to tensile force and nevertheless can be bent elastically so that the bending regions (3a) form an elastic element between the base element (7) and the force-applying element (17).

Abstract: Injection-molding materials comprised of polycarbonate can be processed into optically isotropic films in a chill roll extrusion method. The optically isotropic films for protecting data carriers (CD-ROMS) from becoming scratched, or they are used as supporting materials for the information layer.

Abstract: A piston-rod assembly with a piston rod having at least one attachment at one end. The piston rod is fabricated of fiber reinforced composite. The piston rod has a body of fiber-reinforced ceramic with a basic matrix of carbon fibers or ceramic fibers or both wherein at least silicon carbide is embedded and with an open porosity, at least at the surface layer, of no more than 3% of the volume of that layer admitting lubricants into the pores. The at least one attachment (2, 18a, 19, or 22) includes at least one component of a non-ceramic material that fits into and/or interlocks with the piston rod.

Abstract: A resilient leg as part of an attachment for the wheel of a motor vehicle. The leg is provided with a piston rod (4) that has a piston (5) attached to it, that travels into and out of a housing (1), that is attached at its outer end to the vehicle's chassis, and that is maintained in radial alignment by two separated bearings. The piston divides the interior of the housing into two fluid-charged chambers (9 & 10). The object is to ensure satisfactory transmission of moments of force from the piston rod to the housing in a leg that is light in weight. The piston rod accordingly extends through, and is maintained in radial alignment at, both ends of the leg.

Abstract: A piston-rod assembly with a piston rod having at least one attachment at one end. The piston rod is fabricated of fiber reinforced composite. The piston rod has a body of fiber-reinforced ceramic with a basic matrix of carbon fibers or ceramic fibers or both wherein at least silicon carbide is embedded and with an open porosity, at least at the surface layer, of no more than 3% of the volume of that layer admitting lubricants into the pores. The at least one attachment (2, 18a, 19, or 22) includes at least one component of a non-ceramic material that fits into and/or interlocks with the piston rod.

Abstract: Injection-molding materials comprised of polycarbonate can be processed into optically isotropic films in a chill roll extrusion method. The optically isotropic films are used as covering films for protecting data carriers (CD-ROMS) from becoming scratched, or they are used as supporting materials for the information layer.

Abstract: A resilient leg as part of an attachment for the wheel of a motor vehicle. The leg is provided with a piston rod (4) that has a piston (5) attached to it, that travels into and out of a housing (1), that is attached at its outer end to the vehicle's chassis, and that is maintained in radial alignment by two separated bearings. The piston divides the interior of the housing into two fluid-charged chambers (9 & 10). The object is to ensure satisfactory transmission of moments of force from the piston rod to the housing in a leg that is light in weight. The piston rod accordingly extends through, and is maintained in radial alignment at, both ends of the leg.

Abstract: The invention relates to an apparatus for counterbalancing the weight of movable machine parts of a machine tool. A simply and compactly designed apparatus of this kind enabling a weight compensation even without complex pressure supplies is, according to the invention, characterized in that it comprises one or more helical springs (1;15 to 18) the one end (7, 29) of which is connected to the movable machine part (12; 35) for generating a counter-force counteracting the weight force for the movable machine part.

Abstract: An impact resistant provided PMMA moulding material according to DE 195 44 563 is process into a surface-hardened film which is highly glossy, essentially free of gel bodies and can be processed in the “in-mould-film-decoration” method. The melted mass is generated by means of an extruder and fed to the inventive glazing rolls via a flexible lip nozzle, saild rolls being configured in order to generate an especially high locking pressure in the roll slit. The smoothing rolls are cambered. The films are used for decorating surfaces of high-value thermoplastic moulded parts.

Abstract: Injection-molding materials comprised of polycarbonate can be processed into optically isotropic films in a chill roll extrusion method. The optically isotropic films for protecting data carriers (CD-ROMS) from becoming scratched, or they are used as supporting materials for the information layer.

Abstract: In a chuck for the rotary machining of workpieces (15), having a hollow shaft possessing a hollow shaft axis and jaws (13) which can be turned about axially parallel pivot pins (12) and which are configured as two-armed levers whose one end (13b) can be applied with gripping surfaces (13c) to the workpieces (15) and whose other end (13a) can be turned about the pivot pins (12) by means of a driven ring gear (8) coaxial with the hollow shaft axis (A-A), which can be rotated to a limited extent about the latter, a braking device (22) is associated with the hollow shaft (9). In order to reduce construction costs and permit a uniform increase of force by the operating thrust in both directions of rotation, the jaws (13) are in mirror-image symmetry with their own planes of symmetry running through the axes of the pivot pins (12), and furthermore, the jaws (13) can be swung to both sides according to the direction of rotation of the ring gear (8), with respect to a radial line passing through these axes.

Abstract: An impact resistant provided PMMA moulding material according to DE 195 44 563 is process into a surface-hardened film which is highly glossy, essentially free of gel bodies and can be processed in the “in-mould-film-decoration” method. The melted mass is generated by means of an extruder and fed to the inventive glazing rolls via a flexible lip nozzle, saild rolls being configured in order to generate an especially high locking pressure in the roll slit. The smoothing rolls are cambered. The films are used for decorating surfaces of high-value thermoplastic moulded parts.

Abstract: The invention relates to an apparatus for counterbalancing the weight of movable machine parts of a machine tool. A simply and compactly designed apparatus of this kind enabling a weight compensation even without complex pressure means supplies is, according to the invention, characterized in that it comprises one or more helical springs (1; 15 to 18) the one end (7; 29) of which is connected to a stationary component (8; 19) and the other end (2; 31) of which is connected to the movable machine part (12; 35) for generating a counter-force counteracting the weight force of the movable machine part (12; 35).

Abstract: A multi-disk clutch having a housing with a toothed ring and a cover connected to the toothed ring. The toothed ring, on an inner circumferential surface, has a plurality of disk carrier teeth distributed in the circumferential direction. At least one outer disk engages, of an external toothing, with the disk carrier teeth on the toothed ring. At least one inner disk is connected in rotation-proof fashion to a coupling hub. The clutch further has a pressure plate, and an energy storage device. The energy store device, in an outer circumferential area, has a recess associated with at least one disk carrier tooth that opens substantially radially outward and the disk carrier tooth engages in the recess.

Abstract: A hub for a friction clutch with at least one clutch plate. The hub includes at least one axial guide device for the clutch plates and at least one stop device, which at least in part merge into one another without interfaces. The stop device is arranged in the radially outer area of the axially continuous guide device.