Frame 3, resting on a fixed bed, is connected to it by several links. One of these links, 2, serves to drive the mechanism from link 1 which is actuated by a cam (not shown). Motion is transmitted simultaneously from the forked arm of link 2 to frame 3 by roller 4, mounted on the frame, and from another arm of link 2, through links 6 and 7 and pawl 8 to ratchet wheel 5 which is mounted on a stud secured in frame 3. Mounted on frame 3 are several bellcranks 11 and one bellcrank 10 which carries roller 9. Bellcranks 11 and 10 are connected by turning pairs to frame 12 and strip 14. When link 1 moves upward, links 3, 12 and 14 have translational motion and pawl 8 slides over the teeth of ratchet wheel 5. When link 1 moves downward, ratchet wheel 5 is turned clockwise so that a tooth raises roller 9, turning bellcranks 11 and 10 about their axes and imparting supplementary motion to frame 12. Spring 13 returns frame 12 to its initial position at the end of the down stroke of link 1.
$1829$LR,ML$