When piston 1 is moved downward by the action of fluid delivered to the top end of the cylinder, motion is transmitted through levers 2, 3, 4 and 5 to clamping lever 6 which turns about fixed axis A. This clamps the workpieces in V-blocks by a system of rocker clamps 7 and 8. Each clamp 8 clamps two adjacent workpieces at three points. The workpieces are released in the return stroke of piston 1 when fluid is delivered to the bottom end of the cylinder.
$3870$LHP,GC$