Alarm switch for an alarm circuit in a horological device

Details Alarm switch for an alarm circuit in a horological device Alarm switch for an alarm circuit in a horological device

1978-01-19

1980-04-29

Truhe, J. V.

Horology: time measuring systems or devices

Signalling means

Time condition responsive

368259, 368322, G04C 2116

Patent

active

041999304

ABSTRACT:
A horological device is provided with an alarm switch in the form of an alarm wheel having a conductive path extending from a topside of the wheel to a bottom side of the wheel. The alarm wheel is adapted to operate in an alarm circuit arranged to generate audible signals at a predetermined time. An alarm setting pinion is engaged with the alarm switch to prevent undesired movement of the alarm wheel in case of mechanical shock.

REFERENCES:
patent: 3686879 (1972-08-01), Hummel

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