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Description
When piston 1 is moved downward by the action of fluid delivered to the top end of cylinder 8, it pushes crosspiece 3, rigidly attached to piston rod 2, downward. Crosspiece 3 is connected by turning pairs A to drawbolts 4 which actuate wedge clamps 5. These clamps slide along inclined surfaces in the body of the device and clamp workpiece 6 in both the horizontal and vertical directions. The workpiece is released in the return stroke of piston 1 by the action of spring 7 which raises crosspiece 3 and drawbolts 4, and the piston forces the fluid out of cylinder 8 and back into the tank. $3879$LHP,GC$
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