Photographic developer turning system

Details Photographic developer turning system Photographic developer turning system

1977-10-21

1978-10-31

Christian, Leonard D.

Agitating

Having specified feed means

Print washer type

354327, 366230, B01F 900

Patent

active

041231767

ABSTRACT:
A photographic developer turning system for periodically turning a film processing container. An electric motor connected to an output shaft is mechanically coupled to a clamp disposed about a cylindrically shaped film processing container. The motor turns the container about an axis perpendicular to the axis of the container. A cam, mounted on the shaft, opens a microswitch to interrupt the supply of power to the motor, after one rotation. A variable time delay switch connected to the microswitch permits the motor to be energized after a preselected time. After each rotation, the microswitch resets the time delay switch to zero so that the container may again be rotated after a preselected time delay.

REFERENCES:
patent: 1788901 (1931-01-01), Wilson
patent: 2142881 (1939-01-01), Bell
patent: 2349026 (1944-05-01), Wildman
patent: 3173352 (1965-03-01), Lane
patent: 3682080 (1972-08-01), Merz
patent: 3693529 (1972-09-01), Stabler
patent: 3735961 (1973-05-01), Taylor
patent: 3792487 (1974-02-01), Peres
patent: 3804379 (1974-04-01), Merz
patent: 3981488 (1976-09-01), Ratowsky

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