Diaphragm cell cathode structure

Details Diaphragm cell cathode structure Diaphragm cell cathode structure

1975-11-28

1977-04-05

LeFevour, C. F.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C25B 900

Patent

active

040160645

ABSTRACT:
Disclosed is an electrolytic diaphragm cell having a plurality of fingered anode blades extending outwardly from an anode base plate and cathode means that are electrically and mechanically connected to a cathode base plate that is parallel to and spaced from the anode base plate. The cathode means include a cathode back screen spaced from and parallel to the cathode base plate, and a plurality of hollow cathode fingers extending outwardly from the cathode back screen, and interleaved between the anode blades. Each of the cathode fingers has an open base and side walls, a top, a bottom, and a leading edge fabricated of foraminous metal. The individual cathode fingers have bolt means electrically and mechanically connected to each of the cathode fingers, and extending outwardly from the open end thereof. The bolt means pass through apertures in the cathode back screen corresponding to but of greater diameter than the bolt means so that the individual cathode fingers are slideably adjustable on the cathode back screen. Electrical contact between the cathode base plate and the cathode unit is provided by first elastic conductor means which extend outwardly from the cathode base plate toward the cathode back screen, and second elastic conductor means in electrical contact with the first elastic conductor means and in electrical and mechanical contact with the bolt means on the opposite side of the cathode back screen from the cathode fingers. Also disclosed is a method of assembling the cell by inserting the individual cathode fingers between adjacent individual anodes such that the bolt means project outwardly from the open base, positioning the cathode back screen on a plane substantially defined by the open edges of the individual finger cathodes while allowing the bolt means to pass through apertures in the cathode back screen. The elastic conductor means are then placed on the bolt means on the opposite side of the back screen from the cathodes. The elastic conductor means, the bolt means, and the cathode back screen means are then fastened together; and the anode unit and the cathode unit are assembled together so as to form a single electrolytic diaphragm cell.

REFERENCES:
patent: 3337443 (1967-08-01), Raetzsch et al.
patent: 3902984 (1975-09-01), Yoshida et al.

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