Gradient dyeing of lenses

Details Gradient dyeing of lenses Gradient dyeing of lenses

1976-02-23

1976-11-23

Kaplan, Morris

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 14, 8150, D06P 300

Patent

active

039934357

ABSTRACT:
A gradient dyeing machine employing a motor driven threaded camshaft to simultaneously rotate a symmetrical cam of appropriate configuration at the end of the shaft and move a ramp-shaped arm pivotally attached to a threaded carriage riding on the camshaft forward from the motor toward the cam at a continuously increasing angle relative to the camshaft over the surface of the rotating cam, to continuously and repeatedly immerse a lens holder to progressively decreasing depths in a lens coloring liquid.

REFERENCES:
patent: 1943408 (1934-01-01), Zerk
patent: 2609269 (1952-09-01), Ryan et al.
patent: 2923591 (1960-02-01), Rieser
patent: 3681123 (1972-08-01), Reilly, Jr. et al.

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