Apparatus for screwing and unscrewing the bottoms of watch casin

Details Apparatus for screwing and unscrewing the bottoms of watch casin Apparatus for screwing and unscrewing the bottoms of watch casin

1974-09-23

1976-01-06

Smith, Al Lawrence

Tools

Watchmakers'

G04D 110

Patent

active

039304272

ABSTRACT:
A tool for tightening and untightening screw-type bottoms or backs of watch casings in which the spindle by which the bottom is rotated is threaded to a tool stand using the same pitch of thread as that of the threads on the watchcase bottom, so that as the spindle is rotated it is displaced axially by the same amount as the bottom, thereby keeping the tool on the spindle in proper engagement with the bottom of the case.

REFERENCES:
patent: 2993394 (1961-07-01), Scott
patent: 3359839 (1967-12-01), Miller
patent: 3625093 (1971-12-01), Freiburghaus

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