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[Si3827]

Hi , Could anyone please help in identification. I believe the vice like device is called a joist cramp clamp, but can anyone please let me know what the other two devices are called and used for please.

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https://picasaweb.google.com/103957029414820307583/CastIronTools02?authkey=Gv1sRgCIaUgM315qjwrAE&feat=directlink

[toptips]

Looking at the first pic,imagine the long bar or handle lying along the top of a floor joist,the two pins would be either side of the joist and turning the screw would push a warped T&G board tight to the next one,never seen one before so only guessing.

[toptips]

Looking at it again i think its facing the wrong angle to push T&G together,it would need to sit on a noggin between the joists so i'm wrong.