Omnidirectional clock

Details Omnidirectional clock Omnidirectional clock

1977-01-24

1979-03-20

Schaefer, Robert K.

58 2, G04B 1900

Patent

active

041447085

ABSTRACT:
A clock has a clock face in the form of an axially symmetric solid, e.g. a sphere, a cone or a cylinder. Clock hands extend around the clock face following a helical path, and time-indicating markings are arranged on all the surfaces of the face. It is therefore possible for a complete set of these markings to be seen from any direction relative to the clock face. The hands are normally driven by a conventional clock movement, there being an hour hand and a minute hand. However, it would be possible in some applications to have only a single hand, e.g. a minute hand, and to drive the clock face relative to the hand. The markings are arranged along helical paths, corresponding to the helical shape of the hands.

REFERENCES:
patent: 2757508 (1956-08-01), Zanetti
patent: 3587222 (1971-06-01), Mestrovic
patent: 3702531 (1972-11-01), Maue
patent: 3875736 (1975-04-01), Gulko

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