Nut 1 is connected to bolt 5 by a screw pair. At its other end bolt 5 has pin d which enters slot b of strap clamp 2. Workpiece 3 is clamped by strap clamp 2 when nut 1 is tightened. Spring 4 returns strap clamp 2 to its initial position when nut 1 is released. To remove the ring-shaped workpiece, strap clamp 2 is pulled upward along slot b and turned about pin d.
$194$SL,GC$