Group for clamping and dragging a pipe or rod for pipe benders with or without an inner mandrel and rod benders, and machines for clamping mechanical parts in general

Abstract From the Canadian patent

Vise for clamping a pipe or rod or section bar or other mechanical part with a jaw (3) and a counterjaw (3'), comprising a piston fixed in position by a support (10) with a rod (6) to the head of which said counterjaw (3') is rendered integral through a cart (7); pliers with two catches (9 9'), hinged upon said support (10) to rotate vertically and endowed with hooks (9a, 9a') fit for engaging two corresponding cavities (3a 3a') provided on, respectively upper and lower surfaces of said jaw said catches having, their profile with an inner and outer raising (12 12a; 12', 12a') toward, the exterior of the working field of the pliers themselves said cart, having two pegs (13, 13') respectively …