When piston 1 moves to the right by the action of fluid delivered to the left end of the cylinder, workpiece 4 is clamped by universal swivelling jaws 5. Each swivelling jaw is a semicylinder rocking about axis O and bearing against the cylindrical recess in jaw holders 2. Jaws 5 are set to the required angle by means of two pins 3 which are inserted through holes in the jaw holders into recesses a of jaws 5. The vise can clamp work with either parallel or inclined side surfaces and the work can be set and clamped at the required angle.
$3852$LHP,GC$