Abstract: An electrode for the production of gas in an electrolytic cell of the membrane type with substantially vertical electrodes. The electrode is a substantially vertical conducting plate having a horizontal zone for connecting it to a current lead and is pierced by apertures for the evolution of a gas. Oblique vanes project from the plate opposite the apertures. The apertures are substantially vertically extending slots and the vanes are elongated extending from an active face of the electrode and are arranged adjacent the vertical slots.

Abstract: The invention relates to improvements in electrolytic cells with vertical metal anode plates, such as diaphragm cells for the electrolysis of a brine. The cell according to the invention comprises a baseplate with slots passing therethrough and anode plates which pass through the slots in the baseplate and which are connected to a current lead-in disposed beneath the baseplate. Sealing joints are interposed between the anode plates and the faces of the slots and are supported by the current lead-in.

Abstract: Vertically stacked electrolytic cells are fluid-tightly separated from one another by separator and collector means generally horizontally disposed between superposed cells. Each of the cells has side walls and generally vertical and parallel spaced cathodes supported by the side walls, with generally vertical and parallel anode plates alternating with the cathodes. A current collector between the superposed cells is connected to lower ends of anode plates in the upper cell and to upper ends of anode plates in the lower cell so as to feed electric current to anode plates of both cells.

Abstract: The invention relates to a bipolar electrode and to a diaphragm-type electrolyser equipped with such a bipolar electrode. Said bipolar electrode comprises a generally vertical supporting wall, a plurality of generally vertical, spaced parallel anode plates, transversally connected to said wall, on one side thereof, and a plurality of generally vertical, spaced parallel foraminous cathode fingers transversally connected to the opposite side of said wall, and alternating with the anodes. At least a portion of the supporting wall comprises a plurality of generally vertical elongated metallic members supporting the cathode fingers and extending each between two anode plates. The cathode fingers are in communication with one another through apertures provided through said metallic members.