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: A gear is oscillatingly rolled on a fixed gear so that a pin fixed thereto describes epitrochoidal movement. The pin rocks a sector gear to reciprocate a rack meshing therewith. A low speed interval is produced when the pin position corresponds to a cusp of the epicycloid.

Abstract: Apparatus for driving an automatic workpiece conveyor in a press train which includes a plurality of linkage members articulated to one another to drivingly interconnect a drive element of a press with a workpiece conveyor. The linkage members are interconnected and configured so as to assure movement of the workpiece conveyor between two end positions, with a predetermined stopping interval at the end position, with a continuously moving press drive element. These linkage members include a coupling point interconnecting two of the members which is constrained to move in a predetermined path including two arcuate sections spaced from one another and having the same radius of curvature, which arcuate sections correspond to the end positions of the conveyor. A secondary linkage system is provided for operating a turning device for turning the workpieces when in the end positions.