Clock with electric oscillator-controlled motor

Details Clock with electric oscillator-controlled motor Clock with electric oscillator-controlled motor

1981-01-26

1983-06-21

Roskoski, Bernard

Horology: time measuring systems or devices

Time interval

Electrical or electromechanical

368112, 368 80, 368220, G04F 800, G04F 1000

Patent

active

043891225

ABSTRACT:
The clock comprises an electronic part including a quartz oscillator controlling a motor. The motor drives, through a wheelwork, both continually running hands and stoppable hands. By means of a manually operated actuator, the stoppable hands can be operatively connected to, or disconnected from, the motor, or reset to zero. With the motor running, the continually running hands can be set to a desired time by means of a hand setting actuator. The crystal-controlled drive provides for high accuracy and the analog indication of the time and of the clocked intervals make reading convenient and fast.

REFERENCES:
patent: 2289038 (1942-07-01), Putnam
patent: 2361563 (1944-10-01), Pellation
patent: 2783835 (1957-03-01), Poole
patent: 3030765 (1962-04-01), Lovercheck
patent: 3045418 (1962-07-01), Heuer
patent: 3430434 (1969-03-01), Piguet
patent: 3636700 (1971-01-01), Stemmler
patent: 3879930 (1975-04-01), Burki
patent: 4059954 (1977-11-01), Grosse-Plankermann

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