Abstract: This cutting carriage for manufacturing pneumatic tires, comprises improvements allowing high-resistance steels to be cleanly cut at the smallest angles. The cutting carriage is characterized by a geometry allowing the ideal cutting conditions to be brought together for all types of fabric: large-diameter cutting disk, pivotable mobile assembly, optimum fixed clearance angle in all cases. The support mechanism during the cutting travel, and the disengagement mechanism during the return travel are provided by pneumatic members.

Abstract: The bearing device consists of a hydraulic cylinder and piston unit mounted between two pivotally interconnected solids and a hydraulic circuit. The acceleration performances in the two directions imparted to the suspended mass supporting the grinding wheel are obtained by using a combination of suitable valve means controlling the hydraulic circuit and more particularly through the system for regulating the fluid pressure in one of the chambers of the cylinder which operates as a differential. The result thus obtained is a homogeneous removal of chips and an optimal exploitation of energying flaw-removing machines.

Abstract: This device intended for crack removing machines comprising a frame structure, a post and a first fluid-actuated cylinder connected to a two-armed lever pivotally connected to an arm supporting the grinding wheel comprises a third cylinder connected in parallel to the first cylinder and having one point of its cylinder and another point at the end of its piston rod pivotally connected the former about a vertical axis fixed in relation to the frame structure of the machine and the latter about another axis fixed in relation to the post and not coincident with the pivot axis of this post.