Signals and indicators – Navigation devices
Patent
1978-05-18
1979-08-21
Griffin, Donald A.
Signals and indicators
Navigation devices
116213, G03B 1700, G01D 1300
Patent
active
041651642
ABSTRACT:
A clicking apparatus for permitting two dials to be click stopped independently of each other comprises an intermediate member interposed between the two dials. The intermediate member has a through bore arranged in such manner that one open end of the bore may be opposed to any of a number of click holes or bores of the first dial and the other open end may be opposed to any of a number of click holes or bores of the second dial. In the through bore there are inserted two steel balls spaced by a biasing member by which one of the two steel balls is biased against the first dial and the other ball is biased against the second dial so as to effect click stop action for each dial.
REFERENCES:
patent: 2765763 (1956-10-01), Bretthauer
patent: 2789528 (1957-04-01), Kaden et al.
Griffin Donald A.
Nippon Kogaku K.K.
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