Abstract: A roller with an eddy current brake includes a roller shell that is rotatably supported in a stationary bearing, wherein the eddy current brake, within the roller shell, includes an eddy current receiver connected thereto and a stationary magnet. The eddy current brake is formed with a shielding tube made of a ferromagnetic material (steel), which at one end is fixedly connected with a carrier with the rod, the carrier being made of a non-magnetizable material (aluminum), wherein the shielding tube is arranged at a distance of a further air gap from the roller shell and at a distance of a further air gap from the eddy current receiver. By reason of the roller 5, one achieves that the start of the rotation of the roller shell 11 takes place without remagnitization and thus more smoothly.

Abstract: A roller with an eddy current brake includes a roller shell that is rotatably supported in a stationary bearing, wherein the eddy current brake, within the roller shell, includes an eddy current receiver connected thereto and a stationary magnet. The eddy current brake is formed with a shielding tube made of a ferromagnetic material (steel), which at one end is fixedly connected with a carrier with the rod, the carrier being made of a non-magnetizable material (aluminum), wherein the shielding tube is arranged at a distance of a further air gap from the roller shell and at a distance of a further air gap from the eddy current receiver. By reason of the roller 5, one achieves that the start of the rotation of the roller shell 11 takes place without remagnitization and thus more smoothly.

Abstract: A dowel pin of an assembly arrangement for joining two furniture parts. The dowel pin includes a fixing part with a recess into which a dowel shaft is fitted and is then fixed by the deformation and/or pressing-together of a jacket area of the fixing part surrounding the recess.

Abstract: A dowel pin of an assembly arrangement for joining two furniture parts. The dowel pin includes a fixing part with a recess into which a dowel shaft is fitted and is then fixed by the deformation and/or pressing-together of a jacket area of the fixing part surrounding the recess.

Abstract: A completely automatic method for the nesting of contours to be cut from a piece of natural leather in which defects in structure and material as well as the outer contours of the leather are detected by means of a camera. The defective places, characterized by different shades of color, are transmitted to the electronic control unit. Pattern contours to be cut are stored in the electronic control unit, and regions wherein specific degrees of defect are tolerable are defined for each contour. A specific shade of color corresponds to each degree of defect, so that defects of the same degree are characterized by the same shade of color (in the case of black-and-white cameras by the same gray values; in the case of color cameras by the same color temperature). An automatic nesting simulation process is then effected via a software program.

Abstract: A work table for an automatic cutting installation for cutting materials by means of non-mechanical cutting tools has a metallic cutting base which is formed of a plurality of metal strips. Edges of the metal strips form the support surface for the workpiece. Undulating metal strips may be arranged alternately against non-undulating metal strips. Alternatively, metal strips may be used that are bent into the form of a rectangular undulation and have undulation valleys and undulation ridges which are of different length. The undulation valleys and undulation ridges lie in each case opposite each other and offset, forming a corner-shaped space. The metal strips extend over the complete width of the work table and their top-to-bottom width is selected to provide sufficient stability for the material to be cut which rests thereon. Portions of the metal strips are bonded or soldered to each other.

Abstract: A system for preventing the collision of two cutting tools in a computer-controlled cutting unit in which the two cutting tools may at times be moved toward each other. This system determines the actual position of each cutting tool during the cutting process. The distance between the two cutting tools is determined and is compared with a previously specified tolerated separation by means of a comparator in the computer. As soon as the tolerated separation has been reached, the system shuts off the cutting unit. In addition, an electrical safety circuit prevents the cutting unit from starting up again automatically after an automatic shutdown.

Abstract: A cutting portal for an ultra-high-pressure fluid jet cutting system separates the longitudinal and transverse motion of the cutting head support. The portal includes two parallel plates with lightweight, honeycomb composite material between them. The cutting portal is moved transversely of its length longitudinally of the cutting table. A guide rail for the cutting head support is supported in the honeycomb material and extends along the length of the cutting portal, transversely to the motion of the cutting portal. Spaced apart bearing shafts are supported by bearing shells in the honeycomb material. A driven belt passes around the shafts and moves the cutting head support along the guide rail, which provides motion of the cutting jet in the transverse direction of the cutting table.

Abstract: A material resting surface for a workpiece support, for use with non-mechanical cutting tools of the type which pass a cutting jet, or the like, through the workpiece and into the support. The workpiece support is coated with a kneadable composition, i.e. a substance or mixture of substances of a highly viscous or pasty consistency, and after each cutting process, a reproducible defect-free surface is restored by kneading the composition.

Abstract: The invention relates to a bicycle, the frame (31) of which is connected to a single-arm drive extension (30) which, at its rear end, has firmly connected to it a rear wheel axle (11a) which is rotatably mounted and can be driven by a drive device (38,33,34,35), onto which rear wheel axle (11a) the rear wheel can be attached from one side. Moreover, the front wheel holder connected to the bicycle frame (31) is designed as a monospar fork (1), with the front wheel axle (11) being firmly connected to the monospar fork (1) for accommodating the front wheel on one side. The wheels (8a,8b) have wheel hubs (9a,9b) which are designed in half shell shapes and are open towards the axle bearing devices (12,13,14), with a break device (22), which is firmly connected to the axle bearing device, being arranged within at least one half shell shaped wheel hub, which brake device (22) can be pressed against the inner peripheral surface of a wheel hub (9a, 9b) for braking the bicycle.

Abstract: The invention relates to a drive device having stepless torque adjustment, especially for cycles. The drive device comprises a drive shaft (13), a first adjusting disc (1) arranged coaxially with the drive shaft (13), into which first adjusting disc (1) a spiral-like cutout (3) is incorporated at least partially about the center of the first adjusting disc (1), a second coaxially arranged adjusting disc (5) into which through slots (6) are incorporated which run outwards from the center of the second adjusting disc (5), and a coaxial segmented ring (27) consisting of individual segments (28) onto the outer periphery of which segmented ring (27) can be placed an endless drive element (30). The segments (28) each have extensions (43) which engage both in the spiral-like cutout (3) and in an allocated through slot (6). One of the said adjusting discs can be driven by the drive shaft (13), whereas the other non-driven adjusting disc can be blocked by means of a blocking device (10a and 10b).