Abstract: An intermittently rotary workpiece-holding table has operating units that move vertically relative to the table. The operating units are controlled by vertically swinging levers that are driven vertically at one end and at their other ends control the operating units. The levers pivot about fulcrums, each lever having two fulcrums spaced apart along its length. During a first portion of movement of the lever, that fulcrum is operative which gives the most rapid vertical movement to the operating unit. Then the first fulcrum becomes inoperative and the second fulcrum becomes operative, whereupon the speed of vertical movement of the operating unit slows, as for example for the performance of a work operation.

Abstract: Machine with intermittently rotary workpiece-holding table makes it possible to perform with great rapidity the working and assembly of pieces requiring great precision. It comprises work units placed above (8), below (8') and laterally (8") to rotary table (14) and respective control elements (7a, 15, 7b, FIGS. 1a and 1b) to determine the advance and return movements of the work units. The control units comprise, for each of the work units placed above (8, FIG. 1), a linear cam (7a) and a reversed linear cam (7b), angularly out of phase, controlling a lever system (15) carrying the corresponding tappet. The cams are placed in the axial direction on a rotating body (6). With respect to known machines that exhibit an active travel and an empty return travel, the hourly production theoretically is doubled.