B - Operations – Transporting – 26 – F
Patent
B - Operations, Transporting
26
F
164/136
B26F 1/08 (2006.01)
Patent
CA 1052260
IN THE PATENT OFFICE PATENT APPLICATION entitled IMPROVEMENTS IN OR RELATING TO A CAPSTAN TOOL HOLDER FOR A PUNCHING MACHINE in the name of PIERRE ALLEMAND ABSTRACT OF THE DISCLOSURE Each chuck of the capstan is peripherally integral with a rim made from a relatively elastic material which defines, facing each indexing bore for the formation of a shock absorber/stop member, an orifice whose outlet cross-section is substantially the same. as the inlet cross-section of the said bore and, in the vicinity of the indexing pin a cross-section which, at least in the direction of travel of the chuck, is larger than the cross-section of the end fitting of the said pin, each orifice having a sloping wall which converges towards the central area of the said chuck. The improvements forming the object of the invention are applicable to capstan tool holders for punching machines.
256367
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