Two direction quick adjusting bar clamp

Claim 1

A two-direction quick adjusting bar clamp comprising a clamp holder block bored to provide two bores to receive two bars arranged in two different directions at right angles to each other, the bars being each freely movable along the holder block for effecting the relative adjustment of the bars in said directions, two alined members movably mounted within another bore the holder block, one member being formed to engage and disengage one of the bars to tighten and release the same in the holder and the other member being formed to engage and disengage the other of the bars to tighten and release the same in the holder, the said two alined members comprising a first member internally threaded and a second member having a clearance opening, and a single control device operatively connecting the said members for moving the members relatively toward and from each other for effecting the simultaneous tightening and the simultaneous releasing of the bars to and from the holder in any position of the adjustment of the bars relative to each other in the said two directions, the single control device comprising a rod freely passing through said second member and threadingly connected to said first member and a manually operable element fixed to said rod and arranged thereon to releasably engage said second member.