Winding time-setting push-button assembly for a watch

Details Winding time-setting push-button assembly for a watch Winding time-setting push-button assembly for a watch

1975-06-20

1976-11-30

Jackmon, E. S.

58 63, 58 73, G04B 3708, G04B 2702

Patent

active

039941256

ABSTRACT:
A watch winding and time setting assembly comprises a crown body having an axial passage extending therethrough, and a push-button located in said axial passage. Said passage comprises a first portion of circular cross-section in which is located a cylindrical head of the pushbutton, a second portion of non-circular cross-section greater than the diameter of the first portion and in which a shoulder of the pushbutton is keyed, and a third cylindrical portion having a diameter no smaller than the second portion, which third passage portion has a sleeve fixed therein for receiving and retaining a compression spring. Said spring biases said shoulder into abutment with the lower edge of the first passage portion, and the sleeve acts as a limit stop for said shoulder portion.

REFERENCES:
patent: 2974474 (1961-03-01), Wegner
patent: 3452819 (1969-07-01), Simon
patent: 3783607 (1974-01-01), Fowrer

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