Abstract: A method and apparatus are provided for controlled grinding of roller surfaces. A rotary drive rotates a roller and a grinding wheel is rotated, which has a rotation axis parallel to the axis of the roller. The rotating grinding wheel is pressed against the rotating roller at a certain position along the axis of the roller. The grinding wheel is moved along the direction of its axis. Simultaneously, the surface of the roller is tested with an eddy current test probe disposed substantially at a corresponding position along the axis of the roller as the grinding wheel, however, the eddy current test probe is staggered with respect to the grinding wheel by a suitable angle around the roller axis. The signals from the eddy current test probe are processed by an analog-digital converter and then by a digital processor.

Abstract: An arcuate or circular profile element of generally V-shaped cross-section has a curved bottom wall, arcuate sidewalls having free edges, and laterally projecting flanges projecting from the free edges. By choosing specific relationships between the thickness of the different parts of the element, lighter-weight elements can be used to withstand the same loads as before, or elements having the same weight as before can be used to support heavier loads.

Abstract: A light-weight large-diameter antifriction bearing is composed of a plurality of bearing rings each of which is in turn composed of rounded hollow profiles which together define the bearing race for the anti-friction rolling elements. Each hollow profile has a circumferentially complete cross section.

Abstract: The invention concerns a procedure and a mechanism for washing textiles in a tub-type washing machine with a horizontally arranged tub, in which during the washing and rinsing cycles the tub is driven with a rotational velocity at which the centrifugal velocity at the tub case is between 0.4 and 0.95 g, so that the textiles are repeatedly lifted up, and then fall in a trajectory onto the lower portion of the tub, and that between the washing and rinsing cycles and after the last rinsing cycle the tub is driven at spin speed, and in which the washing or rinsing liquid is led into the suds container and is supplied to the textiles by immersing the tub in the liquid or by at least one spray nozzle spraying into the tub continuously or at intervals.

Abstract: An arrangement for producing double conical springs from heated rod-shaped material, in which one side of a conical-shaped spring is formed with a cylindrical end corresponding to the largest winding diameter. The end is then shaped to a conical form. After being transferred from a spring winding station to an end roll-in unit, the spring is clamped, and a shaping member is inserted radially into the spring, and moved against a stop. With the aid of a roll-in head, the cylindrical spring end is conically formed. After the shaping member is radially removed from the spring, the latter is released and transported to a hardening process.

Abstract: A hot-rolling mill has a rough-rolling section and a finish-rolling section. These sections are transversely offset from one another and the end of the rough-rolling section is connected to the beginning of the finish-rolling section by a heating station. Within the heating station, at the end of the rough-rolling station, is mounted a take-up coiler for the rough product. This coiler can transfer its product coil to a pay-out coiler which is either movable transversely between the two sections so that it can move to the second path and feed the product into the second or is fixedly mounted at the beginning of the second (finish-rolling) section in which case a transporting device is provided which transports the coils from the take-up coiler to the pay-out coiler.

Abstract: A method and an apparatus for testing the tightness of a threaded connection between an oilfield pipe and a tapped connector. An annular space along the threaded connection is sealed with a test head, and only the threaded connection is thus subjected to internal hydraulic pressure via this connection.

Abstract: Sheet-metal ring mount for anti-friction roller bearings has an inner and an outer race ring each composed of two sheet metal annuli both of which have a flange portion and a race portion. The race portions of two annuli together bound two sides of the four sides of the race in which a series of anti-friction rollers is received for rotation in such a manner that the axis of rotation of successive rollers extend at right angles to one another.

Abstract: An apparatus for stamping indicia on workpieces moving in a path, in a combination which comprises a rail extending along but spaced from the path of workpieces movement, and a stamping unit which is movable along this rail to and from a rest position adjacent an end portion of the rail, and which includes a housing having a lower part which is movable transversely to the workpiece movement path. Cam and follower means are provided for biasing the lower part against a workpiece moving in the path, and an inking box adjacent the end portion of the rail is so positioned so as to be in tight engagement with the housing of the stamping unit when the unit is in its rest position, so as to be protected against ink evaporation and entry of contaminants.

Abstract: A method for applying identification markings on surfaces of moving panels and strips, preferably steel sheets and steel strips. The method is particularly applicable at high speeds, in which the surface of the moving panel or strip between an inspection station and an identification or marking station, is divided into zones of a length equivalent to the marking to be applied. Every individual zone between inspection station and identification or marking station is traced electronically, and the surface of each traced zone is oxidized and melted by a laser light source. Each zone is assigned a location in a shift register associated to an inspection station, and each inspection station is assigned several inspection tasks. A shift register is used for each inspection task. Information items originating from various inspection tasks are recorded in individual shift registers at locations assigned to an individual zone.