Workpiece 3, located by shoulder a, is damped by its external flange with three levers 2 (only two are shown) which are connected byhe turning pairs A to link 7 whose spherical recess bears against the spherical head of bolt 4. Bolt 4 is screwed into rod 5 of piston 1. When piston 1 is moved to the right by the action of fluid delivered to the left end of the cylinder, workpiece 3 is clamped against locating flange 8. The workpiece is released when piston 1 is moved to the left by spring 6. Levers 2 are retracted to enable the workpiece to be removed by springs 9 when the front ends b of the levers have been extended well beyond ring 7.
$3867$LHP,GC$