US1797375A

US1797375A - Electrode for electrolytic apparatus

Info

Publication number: US1797375A
Application number: US301145A
Authority: US
Inventors: Smith James Norman
Original assignee: Westinghouse Electric and Manufacturing Co
Current assignee: CBS Corp
Priority date: 1928-08-21
Filing date: 1928-08-21
Publication date: 1931-03-24
Anticipated expiration: 1948-03-24

Description

:hlard'l 24 1931. I V N, sMlTH 1,797,375

ELECTRODE FOR ELECTROLYTIC APPARATUS Fi led Aug. 21. 1928 Patented 'Mar'. 24, 1931 UNITED mm PATENT: OFFICE alums nomam smrn, or rename. onraaro, canana, assrenoa, BY- nnsnn assremn'rs, 'ro wrsrmenousn ELECTRIC & manuracrunme comm, a conromrroiw or PENNSYLVANIA ELECTRODE FOR ELECTROLYTIC APPARATUS Application filed August 21, 1928. Serial No. 301,145.

This invention relates to electrodes for use .in electrolytic cells, more particularly'cells of the tank type for the electrolysis of water.

The object of this invention is to provide an electrode which shall be simple to construct and very efiicient. To this end, my invention comprises, broadly, an electrode having a conducting member of high electrical from the action I embodiment protected by a covering sleeve of the electrolyte, and having firmly attached to the covering sleeve suitable electrolyzing elements.

e accom anying drawings disclose one lllustrative of this invention,

conductivity,

wherein:

, Fig. 1 isa vertical cross-section of one portion of the electrode;

Fig. 2 is a side elevation of the complete electrode; Fig. 3 is an end elevation of the complete electrode and Fig. 4 is horizontal cross-section on the line 4-4 of Fig. 2.

The electrode comprises a main conducting member or rod 1,- of copper or other metal of high electrical conductivity, sleeve or shell 2 of a metal passive to the electrolyte and gas within the cell, such metal being preferably iron or steel, and pref- 80 erably nickel plated when used as an anode.

The rod 1 is adapted tobe slid into said shell 2 and to be soldered or braised or otherwise fused thereto. The bottom of said sleeve is provided with a plug 3 of similarly protective therein so coming in rod 1. The sleeve and rod, which will, for convenience be called the stud ortion of the electrode, is disposed within t e bend of the foraminous electrolyzing element 5, preferably consisting of wire mesh cloth having a relatively large number of horizontal conducting wires 6 and relatively few vertical supporting wires 7 interwoven therewith. A cover plate 8 encloses the portion of the electrolyzmg element 5 bent about the stud 2 and holds sald element in position on the stud.

as to prevent the electrolyte from Y The electrolyzing element o' is shown as holes for bolting having a metal welded or tightly secured contact with the bottom end of the" U-shaped, but it will be obvious that it may be of any other desired shape or construction, in two or more parts joined or held together at the bent-over portion, more or less approximating such form and partially bent or wrapped around the electrode stud and secured thereto by suitable means. It will also be. apparent that, in order to further simplify the construction, especially in case very large current is not used, the cover plate may be omitted and the element welded or otherwise firmly attached to the stud to provide a good electrical and mechanical joint.

The bent portion 4 of the electrolyzing element 5 is welded, soldered, clamped or otherwise attached to the cover plate 8 partially covering the bend of the electrolyzing element 5, the cover being provided withopenings or slots 9 where the element may be readily welded or. clamped to the plate, and also welded or clamped to the sleeve 2 of the stud. The cover plate may be provided with or riveting to the stud.

-Where the electrolyzing elements are to be used as anodes, they are preferably of reasonably pure nickel, or nickel plated iron or steel, and where used as cathodes, of reasonably pure iron.

Having described my invention, what I claim is:

1. An electrode adapted for use in an electrolytic cell, comprising a stud having a main highly electrically conducting member and a sleeve of metal of lesser conductivity and passive to th'e-action of electrolyte and gas in the cell, and-a bent-over electrolyzing element electrically and mechanically connected to the lower end portionof the sleeve at the bend of said element.

2. An electrodecomprising a stud having'a main highly electrically conducting member, a protective sleeve thereon, a cover plate con forming to the perimeter of said sleeve, and an electrolyzing element disposed between said plate and sleeve and electrically and me cham'cally connected thereto.

.3. An electrode comprising a stud having a copper conducting rod, a protective sleeve thereon, a cover plate conforming to the perimeter of said sleeve, and a bent-over folee raminous electrolyzing element dislposed between said plate and sleeve and e ectrically and mechamcally connected thereto.

4. An electrode comprising a stud having a copper rod and a protective sleeve thereon, a

protective plug disposed in the bottom of said sleeve, a, cover plate conforming to the perimeter of said sleeve,

7 l and-a foraminous electrol zing element having a rtion thereof con ormmg to and between said plate and sleeve, said sleeve, cover andelectrolyizing element form a good electrically 'condu vjoint. Signed at Toronto, Province 0 Ontario, in the county of'York d Dominion of Canada, this 16th day of Au'gz, A. D. 1928.

- 'JA'LIES NORMAN being secured together to