Gear mechanism for transmission of small forces

Details Gear mechanism for transmission of small forces Gear mechanism for transmission of small forces

1974-10-04

1976-08-31

Scott, Samuel

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74640, 74416, 58125R, F16H 128, G04B 1902

Patent

active

039772756

ABSTRACT:
A gear mechanism for transmission of small forces, such as in a hand mechanism gear for clocks or watches which has a driving shaft, a driven shaft coaxial thereto, two gearwheels developed as crown wheels, mounted coaxially engaging each other over a small portion of their circumferences and having each a different number of teeth, one of these gearwheels being stationary and the other rotary. A coupling means such as a clutch is fastened to the driving shaft for rotation therewith. The clutch and the two gearwheels are mounted in relation to each other in such a manner that when the clutch rotates with the driving shaft, the rotary gearwheel resting on the driven shaft, while itself rotating, rolls off on the stationary gearwheel.

REFERENCES:
patent: 2821063 (1958-01-01), Sundt
patent: 2849897 (1958-09-01), Walma
patent: 3190066 (1965-06-01), Gardes et al.
patent: 3258994 (1966-07-01), Gorfin
patent: 3532005 (1970-10-01), Bremmer, Jr. et al.
patent: 3661028 (1972-05-01), Fuchs
patent: 3796898 (1974-03-01), Kleinwaechter

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