Abstract: In a carriage drawing machine for uniformly drawing and longitudinally severing elongated material to be drawn, having two drawing carriages on a carriage bed, a drive shaft disposed parallel to the carriage bed and having two cams revolvable therewith for effecting reciprocating motion of the carriages in mutually opposite directions, a drawing jaw vise on each carriage for alternatingly gripping the material to be drawn, each of the vises having two drawing jaws held in a housing by a wedge structure with bearing rollers interposed which serves to self-lock during the drawing, and an after-connected severing device which is advanceable each time the drawn material is severed, the improvement wherein the two drawing jaws of each vise are disposed on top of one another and, within clamping travel distance, the lower one of the drawing jaws is movable parallel to the direction of drawing and the upper one of the drawing jaws is movable parallel to the wedge structure of the housing.

Abstract: Method of grinding elongated, cylindrical workpieces in continuous operat in a grinding machine wherein the workpieces are advanced while they are rotated about their longitudinal axes includes exerting an oscillating grinding pressure transversely to the longitudinal axis of the workpiece, and adjusting the frequency of the oscillations to lie substantially in low-to-medium frequency range, outside the frequency ranges of resonant vibrations of parts of the workpiece and of the grinding machine; and device for carrying out the foregoing method.

Abstract: In a carriage drawing machine for uniformly drawing elongated material to drawn, having two drawing carriages reciprocatingly displaceable in mutually opposite directions, a drawing jaw vise on each carriage for alternately gripping the material to be drawn, each of the vises having two drawing jaws held in a housing by a wedge structure with bearing rollers interposed which serves to self-lock during the drawing, both of said drawing jaw vises being disposed to receive and simultaneously draw two bars of the material to be drawn, at least one of the two drawing jaws being engageable in common with both of the bars, and including an equalizing support in association with the other of the two drawing jaws.

Abstract: Method of grinding elongated, cylindrical workpieces in continuous operat in a grinding machine wherein the workpieces are advanced while they are rotated about their longitudinal axes includes exerting an oscillating grinding pressure transversely to the longitudinal axis of the workpiece, and adjusting the frequency of the oscillations to lie substantially in low-to-medium frequency range, outside the frequency ranges of resonant vibrations of parts of the workpiece and of the grinding machine; and device for carrying out the foregoing method.

Abstract: Method of controlling with heightened accuracy a processing machine driven t different operating speeds and having a machine part moving through a predetermined full range, the processing machine, at an initial setting of the moving machine part, within a given tolerance range, repeatedly permitting start-up of a processing cycle that has been instituted in advance through a precontrolled time period dependent upon the operating speed and which includes a control commencement build-up time period and a full range displacement time period, which includes interposing a blocking time period between the control commencement build-up time period and the full range displacement time period, the blocking time period always ending at the same position in the displacement range of the moving machine part, blocking the full range displacement by the moving machine part until the end of the blocking time period, and advancing the start of the control commencement build-up time period in accordance with the blocking time

Abstract: Parting device for severing a traveling elongated material into predetermined lengths, including track means, a tool slide carrying a parting tool and mounted on said track means for traveling thereon in a direction parallel to a path along which the elongated material travels past the parting device, the tool slide being displaceable at a speed in synchronism with that of the traveling elongated material as a predetermined length is being severed from the elongated material by the parting tool and being displaceable back to a starting position after the predetermined length has been severed, control means for initiating the foregoing displacements of the tool slide, reversible, flexibly yielding drive means ever actuatable for the severing operation and capable of imparting a travel speed to the tool slide greater than the synchronized speed without braking the tool slide, a member traveling at a speed continously in synchronism with the travel speed of the elongated material, and over-running clutch means i

Abstract: Method of controlling with heightened accuracy a processing machine driven t different operating speeds and having a machine part moving through a predetermined full range, the processing machine, at an initial setting of the moving machine part, within a given tolerance range, repeatedly permitting start-up of a processing cycle that has been instituted in advance through a precontrolled time period dependent upon the operating speed and which includes a control commencement build-up time period and a full range displacement time period, which includes interposing a blocking time period between the control commencement build-up time period and the full range displacement time period, the blocking time period always ending at the same position in the displacement range of the moving machine part, blocking the full range displacement by the moving machine part until the end of the blocking time period, and advancing the start of the control commencement build-up time period in accordance with the blocking time