Straight edge bar clamp

A straight edge bar clamp comprising:

• a straight edge bar comprising an elongated channeled bar having an inner channel portion with a constant cross-section, wherein the straight edge bar comprises a first end and a second end;
• a threaded base installed fixedly partially in the channel of the elongated channeled bar at the first end of the straight edge bar;
• a first movable jaw body installed movably and partially in the channel of the elongated channeled bar at a plurality of predetermined positions along the straight edge bar;
• a plurality of bosses or divots provided on an inner surface of the inner channel portion and configured to define the plurality of predetermined stopping positions for the first movable jaw;
• a catching device provided in the first movable jaw body and configured to be engaged by or released from one or more of the plurality of the bosses or divots;
• a second movable jaw body installed partially in the channel of the elongated channeled bar movably between the threaded base and the first movable jaw body along the elongated channeled bar;
• and
• a threaded shaft disposed in parallel with the straight edge bar and configured to be supported through the threaded base and anchored rotate-ably at the second movable jaw body so as to move the second movable jaw body parallel to and along the straight edge bar, so as to exert a clamping force when engaged with a work piece between the moveable jaws,
• wherein the straight edge bar further comprises:
• a flat top portion;
• straight edge portions;
• a flat bottom portion;
• capturing channel(s) provided between the flat top portion and the flat bottom portion and configured inside the inner channeled portion of the straight edge bar to capture and prevent each of the threaded base, the first movable jaw body, and the second movable jaw body from being lifted downwards out of the inner channeled portion;
• and
• overhanging portion(s), each of which being provided at an inner edge of the flat bottom portion and defining a wall of the corresponding capturing channel, so as to capture and prevent each of the threaded base, the first movable jaw body, and the second movable jaw body from being lifted downwards out of the inner channeled portion.