Electrolytic treatment apparatus

Details Electrolytic treatment apparatus Electrolytic treatment apparatus

1989-05-15

1990-03-20

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204218, 204228, 204297R, 204297W, 204299EC, 204300R, 204300EC, C25D 1706, C25D 1708

Patent

active

049099175

ABSTRACT:
An apparatus for electro-coating disc-like workpieces (can ends for food cans) comprises an electrolyte tank and a carrier wheel mounted for rotation with one third of its periphery in the electrolyte. The wheel carries equi-spaced pallets, each defining a pocket for holding a workpiece with its periphery in good electrical contact with the pallet while the pallet is carried by the wheel through the electrolyte adjacent a counter electrode. Energisation of the pallets is achieved by sliprings each having three conductive segments connected to respective pallets spaced equally around the wheel. Adjacent segments in adjacent sliprings are staggered for sequential energisation of the pallets while submerged in the electrolyte. Electrical control means (a) test for the presence of a workpiece in a pocket, and for the degree of workpiece contact with its pocket, and (b) control the electric current passing to each separate pallet.

REFERENCES:
patent: 2448117 (1948-08-01), Pearson et al.
patent: 3849284 (1974-11-01), Kossmann
patent: 4659445 (1987-04-01), Bogdan et al.

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