Time detecting device for alarm clock

Details Time detecting device for alarm clock Time detecting device for alarm clock

1980-12-19

1983-02-01

Truhe, J. V.

Horology: time measuring systems or devices

Chronological

With simultaneous time indicating means

368254, G04B 2302, G04C 2116

Patent

active

043712673

ABSTRACT:
In the time detecting device of an alarm clock is provided with an hour gear wheel and an alarm gear wheel, each having an indication hand, engaging with a second hour gear wheel and a second alarm gear wheel respectively. An detecting cam plate is provided so as to be axially shiftable and continuously pushed and turned by the second hour gear wheel. A projection is formed on either the second alarm gear wheel or the detecting cam plate while a hole is formed on the other. When the respective phases of the projection and the hole coincide, the detecting cam plate is allowed to shift to actuate the alarm device.

REFERENCES:
patent: 4069658 (1978-01-01), Ito
patent: 4212155 (1980-07-01), Ogihara et al.

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