method for cutting metal rods with two opposite blades and a saw blade advances both in the implementation of this method

摘要

A two-bladed saw comprises two parallel blades mounted on a frame, the two blades advancing from opposite directions and being subject to an alternating movement transverse to the axle of the blade and means for regulating the motion of each of the blades, so that one blade effects a useful work run while the other blade is on the idle return run. By means of the two-bladed saw, it is possible to reduce the total cutting time because the element to be cut, is cut from two opposite sides and at each work run only one blade is in contact with the metal, while the other blade is on its return run.