Process of finish-grinding rings on the outer surface or inner surface, especially for finish-grinding race rings of rolling bearings. A ring to be machined is accommodated by a work fixture with centring via a hydraulic centring means and is driven in a rotating manner by a driver. The ring surface to be machined is measured during a grinding operation. The grinding operation is regulated and/or ...

An automatic speed control apparatus capable of allowing a motor vehicle to travel at a given speed in a cruising mode over a wide speed range from a low to a high speed by simplifying driver's operation as required while ensuring safety in driving by protecting the vehicle against collision with an obstacle lying in front thereof. Upon stoppage of acceleration and deceleration of the vehicle, the...

The x-ray image amplifier includes an optical transmitter for transmitting a light bundle. The light bundle is focused on an x-ray device opposite an x-ray image amplifier. The optical transmitter includes four laser diodes which are arranged at 90 degrees w.r.t. each other around the x-ray image amplifier. Each laser diode is associated with a controllable positioning device so that when the dis...

In a pressing device for a paper-trimming machine, in particular for three-knife trimmers for three-sided trimming of book blocks, pamphlets or the like, a press ram exerts, from a mechanical drive arrangement, via a lever arm movable about a central pivot and having a pressing rod which receives the press ram, and with intermediate connection of a spring element, a pressing force on the material ...

The double torque-transmitting connection, for use in a vehicle gearbox, has first and second adjacent, coaxial and independently rotating elements (121,79) connected to first and second coaxial shafts (26,30). The first shaft (26) is arragned in and projects from the hollow second shaft (30). First and second outer splines (56,59) on the outer end surfaces of their respective shafts (26,30) slide...

An X-ray diagnostics installation has an X-ray source and an X-ray image intensifier video chain, including an X-ray image intensifier, a video camera, a control circuit that derives control pulses for producing images of a subject from data supplied thereto identifying exposure conditions, and a subtraction circuit for forming the difference between stored video signals and continuing, current vi...

A shell-type centrifuge rotor has a sample container support sleeve extending through the cavity in a plate. The sleeve has at least two slots which define at least one resilient flange pivotally deflectable about a pivot axis to hold the sleeve in a fixed relationship with respect to the plate. In one embodiment both slots extend axially along the sleeve. In an alternate embodiment a first one of...

Provided is a powder and binder system for manufacturing sintered parts from particulate material, and a method of injection molding parts for sintering. The particulate material includes ceramic, metallic and intermetallic powders. Preferably, selected powder particles are coated with one or more additives depending on theirs shape and surface chemistry to create a powder system. The additives ma...

This invention relates to a process for preparing foamable branched polyester compositions having increased melt viscosity and melt strength, and a reduced level of unreacted monomeric branching agent. The process involves melt blending (A) a composition containing a polyolefin and branching agent, (B) a nucleating agent either in powder form or (B') in the form of a composition containing a polyo...

In order to detect the residual fluid in a reusable bottle (1) being returned, infrared light is sent into the bottle by means of a light source (3). Light emerging from the bottle is detected using a detector (6). On the basis of the attenuation of the light in the bottle, which can be ascertained by the detector, the presence of residual liquid in the bottle can be deduced. The method is highly ...

Provided is a powder and binder system for manufacturing sintered parts from particulate material, and a method of injection molding parts for sintering. The particulate material includes ceramic, metallic and intermetallic powders. Preferably, selected powder particles are coated with one or more additives depending on theirs shape and surface chemistry to create a powder system. The additives ma...

Des prémélanges destinés à la préparation de mousses de polyuréthane ou de polyuréthane modifié, comprennent au moins un polyol et du 1,1,1,3,3pentafluorobutane comme agent gonflant. Ces prémélanges se sont révélés particulièrement stables.; Pre-mixt. comprises: (a) polyol(s); (b) 1,1,1,3,3-pentafluorobutane as swelling cpd.; and (c) a catalyst contg. cpd(s). for the catalysis of polyol/isocyanate...

Metal lumps or pebbles are produced by introducing a molten metal stream into a stream of water in a direction which is substantially the same as the direction of the water stream and at a velocity which is substantially the same or slightly less than the velocity of the water stream.