Crank 1, designed as disk a encircled by fixed collar b, rotates about fixed axis A. Crank 1 is connected by turning pair B to slider 5 which, in turn, is connected by a sliding pair to link 2. Link 2 oscillates about fixed axis C. Through intermediate link 6 motion is transmitted from link 2 to link 3 which slides along fixed guides e. When crank 1 rotates, link 3 reciprocates. The stroke of link 3 can be varied by screw device 4 which adjusts length A͞B of crank 1.
$1325$LG,HP$