Agitator

Details Agitator Agitator

1976-12-30

1980-01-22

Hornsby, Harvey C.

Agitating

By movement of support for removable mixing chamber

Mixing chamber secured to support

366237, 354327, B01F 1100, G03D 304

Patent

active

041847776

ABSTRACT:
An agitator for use in developing photographic film has an upright oscillatable shaft with a platform at its upper end for supporting a developing tank, spring means urging the upright shaft to a neutral position, a motor-driven shaft normal to the upright shaft, a pair of radial arms carried by the motor-driven shaft, and a pair of vertically spaced arms carried by the upright shaft and extending across the path of movement of the radial arms. Upon rotation of the motor-driven shaft a first radial arm contacts a first spaced arm and rotates the upright shaft from its neutral position. When the first radial arm passes by the first spaced arm the spring means returns the upright shaft toward its neutral position until the first spaced arm strikes the second radial arm. The second radial arm then acts on the first spaced arm to rotate the upright shaft away from the neutral position. When the second radial arm passes by the first spaced arm the spring means returns the upright shaft to the neutral position through a series of diminishing arcs. Continued rotation of the motor-driven shaft results in the radial arms acting on the second spaced arm to cause a similar but opposite action. The oscillating and jarring action of the upright shaft keeps the developing solution well mixed and keeps the film being developed free of air bubbles.

REFERENCES:
patent: 2104283 (1938-01-01), Webster
patent: 2545914 (1951-03-01), Boucher
patent: 2863475 (1958-12-01), Lau
patent: 3935884 (1976-02-01), Hazelton
patent: 4026531 (1977-05-01), Luchsinger et al.

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