ApplicationNo. 05/664518 filed on 03/08/1976
US Classes:279/50, Reciprocating cam sleeve279/57Reciprocating cam sleeve
ExaminersPrimary: Simpson, Othell M.
Assistant: Bilinsky, Z. R.
Attorney, Agent or Firm
International ClassB23B 31/20 (20060101)
AbstractWhen the conventional feed yoke is moved forwardly by the conventional mechanism of an automatic screw machine, an internal conical surface on a ball sleeve, which is moved forwardly by the yoke, operating through balls forces the chuck-closing sleeve forward to close the split collet to grip and hold the bar stock firmly during a machining operation.