Machinery for discontinuously forwarding material or work past or through discontinuously operating tools

Abstract

Machinery for discontinuously forwarding material or work past or through discontinuously operating tools, presses for example. Two separated work-holder bars parallel the forwarding stream. The bars move upstream and downstream together subject to a cam. The cam rotates around an axis paralleling the stream. The motion of the cam is transmitted to the bars by a follower and by a transmission. The transmission engages guides that guide the bars. The bars are accordingly discontinuously shifted in at least one direction essentially cross-stream. The follower is mounted on a rocker. The rocker pivots around a pivot secured stationary to the machinery above and more or less paralleling the axis of the cam. The follower is forced by a spring against the circumference of the cam. The transmission is a linkage including a reversing lever. A thruster is articulated to the rocker at a point remote from the pivot. The thruster pivots the reversing lever around another pivot. The second pivot is also secured stationary to the machinery and parallels the pivot that the cam pivots around. The cross-stream motions of the work-holder bars are derived from the reversing lever.

Dependencies are inferred from the claim text.