Abstract: A gear drive arrangement having at least two meshing spur gears which are helical or straight toothed in only one direction. One of the meshing spur gears has at least two axially spaced gear parts thereon and, approximately in the center thereof, at least one peripheral groove separating the two gear parts. The depth of the groove is at least as great as the height of the tooth and preferably extends below the root circle. The other meshing spur gear is free of a peripheral groove thereon.

Abstract: Electrical sequence control system. There is described an electrical sequence control system which is controlled according to a predetermined program by means of a switching circuit wherein the outputs of the binary counter are connected with n bits to the data inputs of the decoder and the address inputs of a multiplexer, the output of the latter being applied to one input of an AND-gate and the second input of said AND-gate being connected to a rectangular wave generator. The output of the AND-gate is connected to the input of the binary counter and the connection of the output of the multiplexer with the input of the binary counter acts as a return when one of the input signals at the multiplexer corresponds with the address input.

Abstract: Gear cutting tool. There is provided a toothed tool for the plunge cut shaving of a gear workpiece having in the tooth surfaces a plurality of grooves whose edges constitute cutting edges, which grooves are spaced apart to define increments on each tool tooth equal to the number of teeth of the workpiece or one whole multiple thereof, and wherein when the tool is in a crossed axes relationship with the workpiece axis said cutting edges of those tool teeth spaced circumferentially a number of teeth equal to the number of teeth on the workpiece, or an integral multiple thereof, define a helix whose portion diametrically opposite the common perpendicular between said axes when viewed along said axis toward said workpiece forms an angle with the workpiece axis which is smaller than the complement of the angle between the tool axis and the workpiece axis.

Abstract: Drive gear system for motor vehicles. The invention is particularly applicable to driving means such as planetary gearing for connecting multiple electric motors respectively to individual wheels of such vehicle. Recognizing that differing demands are made upon various parts of such mechanism, such as the braking disk, the wheel rim supporting disk and other component parts of the drive system, it is expensive and inconvenient to make the entire unit of material capable of meeting the most severe conditions imposed upon any part thereof. Accordingly, there is here provided a construction by which the braking disk, the wheel rim supporting disk, ring gear, supporting housing and other component parts may all be made as units separate from each other and therefore made as desired of materials appropriate to their respective functions.