Two speed planetary gear train

Details Two speed planetary gear train Two speed planetary gear train

1975-04-17

1976-09-21

Schacher, Richard A.

Advancing material of indeterminate length

With material-responsive control means

To regulate longitudinal movement of material

226 44, 226117, B65H 2322

Patent

active

039814238

ABSTRACT:
A motion picture camera having a capability of recording sound on film simultaneously as the film passes the image recording station, is improved by the use of a single drive motor which powers film moving mechanisms at both stations. A novel speed change assembly is used to vary the drive of the film through the image recording station in response to the condition of a film loop between the stations as detected by a mechanical sensor which controls the speed change assembly.

REFERENCES:
patent: 1900555 (1933-03-01), Heisler
patent: 3244469 (1966-04-01), Hennessey
patent: 3901590 (1975-08-01), Ashida

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