Beaver-tail indexing mechanismYour model is disabled. For more details go to Edit properties3D Model
The driving pinion revolves continuously and drives the gear through ordinary gear teeth except when the “beaver-tail” stop mechanism comes into action. The cam, whose shape is reminiscent of that of a beaver’s tail, is intermittently controlled by two rollers.
Further information about this mechanism can be found in “Ingenious Mechanisms for Designers and Inventors”, vol. 1 (1930), Industrial Press Inc., ed. Franklin D. Jones.
Original CAD files from trinityscsp. Animation generated in Blender.