Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Patent
1973-08-08
1976-04-27
Braun, Fred L.
Cleaning and liquid contact with solids
Processes
Using solid work treating agents
15100, 14102, 134 10, 354319, 354324, B08B 700, G03D 308
Patent
active
039532259
ABSTRACT:
An automatic self-contained basic unit-processor for an offset photolithographic plate which may be used, at different times, for any processing step requiring contacting of the plate by liquid. For example, an exposed plate is developed by contacting the exposed surface of the plate with the conventional developing fluid, and subjecting the surface to a linear, reciprocating rubbing action by a sponge. This rubbing action produces results surprisingly similar to those produced by a manual rotary action. A fully assembled basic-unit processor of this invention requires only that it be connected to a source of power, and to a reservoir for recirculatable processing fluid. A single electric motor is adapted (a) to drive each roll of two pairs of coupled drive rolls, (b) to reciprocate a sponge in frictional contact with a generally horizontal offset plate, and (c) to supply a controllable flow rate of fluid for processing the plate. Rotary movement of the electric motor effects positive rotation of each of a pair of coupled drive rolls, in opposite directions with respect to each other, to negate slipping of a wet plate between them. Translation of rotary movement of the electric motor in a first plane to linear reciprocation in a second plane essentially orthogonal to the first, is effected by a direct rod-actuated drive with swivel rod-ends. The fully assembled basic-unit processor may be used sequentially for various functions, e.g. developing, washing and gumming. It may also be transported through a standard 36-inch wide doorway, eliminating the drawbacks characteristic of machines which are to be assembled at the installation site.
REFERENCES:
patent: 2555874 (1951-06-01), Coughlin
patent: 3059560 (1962-10-01), Gutzmer
patent: 3528358 (1970-09-01), Pickard
patent: 3593641 (1971-07-01), Adams et al.
patent: 3608464 (1971-09-01), Harrell et al.
patent: 3625131 (1971-12-01), Puls
patent: 3635144 (1972-01-01), Beck
patent: 3682079 (1972-08-01), Casson
Braun Fred L.
Buckler Industries, Inc.
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