US1549233A - Sectional anode - Google Patents

Description

Patented Aug. 11, 1925.

UNITED" STATES PATENT, OFFICE..-

.VAN WHTKIJE TODD, OF MILLBURN, NEW JERSEY, ASSIGNOR TO THE HANSON & VAN

WINKI'E COMIPANY, OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY.

saorromu. mom.

Application filed December'20, 1928. Serial No. 681,788.

To all whom it may concern:

Be it known thatI, VAN WINKLE TODD, a citizen of the United States, and a resident of Millburn, county of Essex, State of New Jersey, have invented certain new and useful Improvements in Sectional Anodes, of which the following is a specification.

*This invention relates to sectional anodes for use in electroplating apparatus and has for its object the production of anode holders and sections that will be more convenient and more eificient than those heretofore used. The invention comprises an in-. soluble anode backbone or stem having a dove-tail or equivalent wing or socket upon which anode sections may be strung, the

latter having corresponding dove-tail recesses or projections adapted to engage with the corresponding part of the anode stem whereby they may be easily applied, securely held in place when applied and form individually good pressure contact with the anode stem.

In the accompanying drawings:

Figure 1 represents an anode stem 'or backbone.

Figure 2 represents; a transverse section thereof.

Figures 3, 4, 5, 6 and? are forms shown in cross-section.

Figures 8, 9, 10 and 11 show forms anode sections.

Referring to Figure 1 of the drawings, I have shown an anode stem or backbone 1 which should be made of insoluble material such as lead or of metal coated with lead. A hook 2 enables the stem to be hung onto an anode rod 3. Extending the length of the stem is a dove-tail wing 4 (see Figure alternative ,2) and such wings may be either on both may be made in the body shown in Figures 5, 6 and 7.

sides. of the stem, as shown in Figure 2,1or on one side only, as shown in Figure 3.- The wing may also take the form shown in Figure 4 of a rounded dove-tail. n

Instead of a rib or wing, the dove-tail of the stem, as

In Figures 8, 9, 10 and 11, there are shown various .forms of sectional anodes adapted to be strung upon the anode stein. These, anodes, are, of course, made of soluble metal,

but, as shown in Figure 11, the dove-tail part may be. made ,of insoluble metal and cast into the anode section so as to form an integral part thereof.

When such sections are strung upon the anode stem, the lower one may rest upon the foot 5 of the stem and the other anode sections superimposed thereon. Owing to thecenter of gravity of the sectional anodes being to one side of their point of support, each section will individually clamp the anode stem so, that any corrosion or accumulation of salt or dirt between the sections will not interfere with their electrical contact with the stem itself. This will be particularly the case with a section such as shown in Figure 11, where the dove-tail part is of insoluble metal so that the contact with the anode stem will not in any way be affected by the dissolution of the soluble part of the section.

The sections shown in Figures 9 and 11 may be inserted at any point along the anode stem. The thickness of the dove-tail extension being less than the width of the narrow part of the dove-tail slot enables a section of this character to be ifiserted vertically and then turned into a horizontal position so that they become locked in place.

I claim 1. A sectional anode comprising in combination, an insoluble anode stem having a dove-tail holder rib and a plurality of separable anode sections adaptedyto engage with and beheld by the said dove-tail holder in any desired position.

2. The combination with -an anode hold-, I

ing stem of'insoluble metal having 'a dovetail holding portion of a sectionalanode of soluble metal with a dove-tail portion of insoluble metal cast therein, said dove-tail extension being adapted to engage the (love.

tail of the anode stem.

3. In combination, an anode stem of in-.

soluble metal having a dove-tail holder having a recessed dove-tail holding groove and detachable soluble anodes having extensions adapted to freely pass into the said dove-tail groove when in one. position nd to lock therein when turned to another posit-ion.

VAN WINKLE TODD.

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