Device for indicating the advancing of film in a camera being ta

Details Device for indicating the advancing of film in a camera being ta Device for indicating the advancing of film in a camera being ta

1977-09-02

1979-01-16

Adams, Russell E.

354218, 354289, G03B 100

Patent

active

041346572

ABSTRACT:
A camera in which a roll of film is employed is provided with a device for indicating the advancing of film being taken up or rewound. A friction member is rotatably mounted on the film take-up spool shaft but does not rotate with the shaft unless film is wound around the friction member. The friction member is provided with a cam portion which is engaged by one end of an indication lever. The other end of the indication lever is provided with a striped or other pattern which is viewable through a window in the camera body. Alternatively, a portion of the friction member could be directly viewed through the window.

REFERENCES:
patent: 1680647 (1928-08-01), Stark et al.
patent: 2150696 (1939-03-01), Nelson
patent: 2521933 (1950-09-01), Mihalyi
patent: 3688668 (1972-09-01), Ort

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