Method and apparatus for setting up tools, workpieces and similar on a rotatable spindle

Abstract From the Canadian patent

The invention relates to a method and an apparatus for setting up tools, work pieces and the like on a spindle which is preferably rotatable by means of a clamp bushing comprising a double walled sleeve which is closed at both ends and which has at one end a fixed radially outwards directed collar and at the opposite end means for axially securing the tools work pieces or, the like, on the clamp bushing. The bushing is formed with means for providing pressure in a recess formed between the outer wall and the inner wall of the bushing and for releasing the pressure from said recess. One or more tools having center bores fitting the outer dimension of the hushing are slipped onto the bushing …