Abstract: Control circuitry for a work strip stamping machine to control the longitudinal advance and the transverse strip shifting so that a selected number of rows can be automatically stamped, the control being synchronized with the cycle of the stamping member by a sensor that generates an initiating pulse to start the next advance and/or shift of the strip. The circuit includes CMOS flipflops and shift registers that provide a repeating sequence of pulses which are delivered through buffers to the solenoids that actually initiate the advance and shift of the work strip. The circuit is operated from the AC mains, but includes a battery back-up circuit that automatically takes over in the event of a power failure and inhibits further cycling of the system while at the same time maintaining voltage on the CMOS components of the circuit to retain a memory of its status until the AC power is restored.

Abstract: An apparatus for holding a record disk in fixed position on a turntable while the record is being played. The apparatus includes an air seal and a foraminous pad mounted on a turntable which engages the bottom of the record and a vacuum chuck with a rotatable fitting which is connected to a source of vacuum and is mounted on top of the record so that a vacuum is applied to the bottom of the record disk through the central opening by a fixture located above the record.

Abstract: Apparatus for driving the lay of a weaving loom and including one or more four-bar linkages arranged independently, in parallel, or in series with one another in a manner to advance and retract a loom lay during a fractional portion of the rotation of a crank and providing an extended dwell period for the lay during the remaining portion of the rotation of the crank.

Abstract: An apparatus mounted on a weaving loom for moving a weft thread carrying mechanism from one end of a loom lay to the other through the shed of the warp threads. The apparatus includes a linkage having a drive mechanism which is rotated continuously and which maintains the weft thread carrying mechanism in a fixed position for an extended dwell period and then propels the weft thread carrying mechanism across the lay after the lay has beat up a prior weft thread and has been retracted to an inoperative position. The apparatus provides a substantial reduction in the noise level and power requirement over conventional looms and permits the speed of operation to be increased to improve production.