OMNIDIRECTIONAL PRESSURIZED HYDRAULIC AND PNEUMATIC FLUID-ACTUATED PISTON-TYPE POWER MEANS FOR OPERATING MECHANISMS, SUCH AS A CHUCK, BY RECIPROCATING LINEAR MOVEMENTS, OMNIDIRECTIONALLY, WITHIN ANY PLANE

摘要

A hydraulically or pneumatically controlled apparatus for operating a chucking tool on a lathe or other machine tool for clamping and releasing workpieces. Due to its particular structure and especially the particular design and arrangement of its check valves, this apparatus takes up a very small space, and the axial movements of its piston are transmitted to the outside and may be employed for controlling the operations of the machine tool.