Clamp

A clamp for clamping a workpiece, the clamp comprising:

• a mounting bracket member including a first bore having a longitudinal axis and a screw thread on an inner circumference of the first bore;
• a substantially cylindrical body member mounted in said first bore in said mounting bracket member, said body member having a screw thread on its outer circumference that engages said screw thread in the first bore of said mounting bracket member to permit rotational and longitudinal movement of said body member relative thereto, said body member further including an axial second bore that is substantially coaxial with said longitudinal axis of the mounting bracket member;
• a locking member arranged to prevent relative movement between said body member and said mounting bracket member after the body member is set at a desired longitudinal position with respect to the bracket member;
• a plunger supported in said bore in said body member for sliding movement relative thereto in the direction of said longitudinal axis of the mounting bracket member;
• and
• a handle pivotally mounted on the body member and having a cam portion for engaging a confronting end of said plunger, said handle being operative to drive said plunger in a first direction parallel to said longitudinal axis.