APERFEICOAMENTO EM TESOURA PARA CORTAR VERGALHOES

摘要

A shearing device for cutting rod of the type comprising a pair of coplanar discs with projecting blades has the blades mounted in grooves in the discs so that the tips of the blades can be moved into and out of the path of the rod, thereby enabling the discs to rotate continuously and thus avoiding the problem with the known shearing device of accelerating and stopping the discs and ensuring that the blades are moving at precisely the same speed as the rod during the cutting action.