Minute-interval alarming device for a clock or the like

Details Minute-interval alarming device for a clock or the like Minute-interval alarming device for a clock or the like

1975-04-23

1976-12-14

Witkowski, Stanley J.

58 16R, 58 18, 58 19A, 58125B, G04B 2310, G04C 2136

Patent

active

039967344

ABSTRACT:
An alarming device for a clock comprises a rotationally driven minute time wheel having plural sets of shift teeth, a rotatable 10-minutes time wheel which intermittently meshes with the shift teeth of the minute time wheel to be driven thereby, and a rotatable hour time wheel which intermittently meshes with the 10-minutes time wheel and is driven thereby. First and second detection devices respectively detect when the 10-minutes and hour time wheels are in predetermined angular positions, and setting means enables setting of the detection devices in predetermined positions. An audible alarm is rendered operative and provides an audible alarm only when the 10-minutes time wheel and the hour time wheel have respectively conformed in phase with said first and second detection devices thereby providing notification of the alarm time. The first detection device is provided with alarm time indicating indicia each of which represents one-figure minutes selected in accordance with the number of said shift teeth of the minute time wheel, and the second detection device is provided with alarm time indicating indicia representing hours.

REFERENCES:
patent: 2579166 (1951-12-01), Youhouse
patent: 3474617 (1969-10-01), Robinson et al.
patent: 3524314 (1970-08-01), Morton et al.
patent: 3673787 (1972-07-01), Kovacevic
patent: 3857234 (1974-12-01), Flumm et al.

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