Differential thread collet actuation

Details Differential thread collet actuation Differential thread collet actuation

1996-06-27

1998-06-02

Bishop, Steven C.

Chucks or sockets

Socket type

Spring biased jaws

279 462, 279 463, 279 464, 279 51, B23B 3120

Patent

active

057588830

ABSTRACT:
An apparatus for adjusting the grip of a tubular collet upon work, the collet receivable in a bore formed by a holder, and comprising a rotatable connector member having first and second thread connections to the collet and to the holder, respectively; the thread connections characterized as differential, with respect to the collet and to the holder, whereby as the member is rotated, the collet closes toward the work, with high mechanical advantage.

REFERENCES:
patent: 493231 (1893-03-01), Muir
patent: 3652100 (1972-03-01), Baturka
patent: 4479666 (1984-10-01), Welsh
patent: 4603889 (1986-08-01), Welsh

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