Indexing gear for timekeeping devices

Details Indexing gear for timekeeping devices Indexing gear for timekeeping devices

1983-01-07

1984-09-25

Roskoski, Bernard

Horology: time measuring systems or devices

With calendar indicator

Setting or resetting

368 37, 74461, G04B 1924

Patent

active

044733011

ABSTRACT:
The invention relates to an indexing gear for timekeeping devices comprising a toothed wheel having an indexing tooth, a pinion indexable two teeth at a time by means of the indexing tooth of the indexing wheel, said pinion being secured against rotation between indexing operations by a shoulder of the indexing wheel, and also comprising a driven toothed wheel meshing with the pinion, the pinion having, according to the invention, slotted teeth or teeth elastically deformable in some other way, which interact with the shoulder of the indexing wheel and the teeth of the toothed wheel, such that a gear drive is obtained which is completely without any play.

REFERENCES:
patent: 3496761 (1970-02-01), Gabriel
patent: 4127041 (1978-11-01), Imazaike
patent: 4432081 (1984-02-01), Schwartz et al.
Till Patent #58162, FIGS. 1-6, 09/27/1922.

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