Drive coupling

Details Drive coupling Drive coupling

1985-12-10

1989-08-22

Roskoski, Bernard

Horology: time measuring systems or devices

Arbor and pinion details

368323, G04B 2900

Patent

active

048602701

ABSTRACT:
In a drive coupling for the coupling of an adjustment shaft with the ratchet adjusting knob of a wristwatch, a slide bushing which is axially movably disposed on the adjustment shaft has a collar with sections circumferentially punched therefrom and bent axially out of the collar plane so as to form an annular cam and detent structure.

REFERENCES:
patent: 1848562 (1932-03-01), Greenleaf

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