Patent ID: 7114424

Claim:
Wire sawing device comprising at least one layer of wires stretched between at least two wire guide cylinders and held in position on the surface of said wire guide cylinders which define the interval between the wires of said layer of wires, and hence the thickness of the sawed slices separated from each other by sawing gaps, the wires being adapted to move with alternating or continuous movement whilst bearing against at least one piece to be sawed fixed on a support table, means being provided to carry out relative movement between the piece to be sawed and the layer of wires, wherein the sawing device comprises a holding device arranged to maintain, in the course of sawing, the partially or completely sawed slices substantially parallel to each other and such that the width of the sawing gaps is held substantially constant during sawing of the slices, wherein the holding device comprises holding members adapted to coact with at least a portion of the slices in the course of sawing, wherein the holding device comprises guide elements arranged on the support table, the holding members being mounted movably on the guide elements to be moved from an inactive position toward an active position, in which the holding members coact with the slices in the course of being sawed, and vice versa, wherein the holding members are urged by resilient members in the direction of stationary abutments, wherein the holding members are, on the one hand, in the inactive position, bearing against the stationary abutments and, on the other hand, in the active position, spaced from the stationary abutments to coact with the piece or pieces to be sawed, and wherein the holding members comprise at least one bar extending along the piece to be sawed in a direction substantially parallel to the wire guide cylinders, this bar being provided with at least one coating of elastomer adapted to be applied against the slices of the piece to be sawed.