Unusual Work Holding Device

Here's an unusual device I can't find any information on. It was made by Universal Vise & Tool Co., Parma MI. It was part of a portable welding table but looks like it could mount on a drill press column and serve as a good anti spin device for repeated drilling without a vise setup. The arms can slide on the bar and lock rigidly with the cam lock sleeves. They can also be swung out of the way when not needed.

I made the mistake of showing this on the Practical Machinist and got a lot of...

Unusual Work Holding Device