Acceleration/deceleration actuating mechanism for wrist instrume

Details Acceleration/deceleration actuating mechanism for wrist instrume Acceleration/deceleration actuating mechanism for wrist instrume

1975-01-06

1976-03-23

Scott, James R.

Electricity: circuit makers and breakers

Special application

58 50R, 200 6145M, 200 6152, 240 643, 335205, H01H 3500, G04B 1930, G04C 2310

Patent

active

039461734

ABSTRACT:
Terminals within a digital wristwatch which normally require closure by pressing a button on the side of the watch in order to render visible the display are arranged to be automatically closed by a magnetic inertial device within the watch casing. The magnetic inertial device includes a guide tube and a conducting ball held at one end of the tube by a permanent magnet. The terminals to be closed and thus render visible the display on the watch are positioned in the other end of the guide tube so that by flicking the wrist, the ball is shaken loose from the magnet and will make momentary contact with the terminals, thereby rendering the display visible. A reading can thus be taken without requiring use of the other hand to operate the normal manual press-button switch on the side of the watch.

REFERENCES:
patent: 3114236 (1963-12-01), Ross
patent: 3911666 (1975-10-01), Haber

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