US3708417A - Method of making a cast anode with hook - Google Patents

Abstract

THERE IS DISCLOSED A METHOD FOR MAKING A CAST ANODE HAVING INTEGRALLY FORMED THEREWITH AN EXTENSION WITH IS SUBSEQUENTLY BENT INTO A HOOK.

D R A W I N G

Description

' 2, 7 c. G. KARNA 3,70

I I MW v illh.

METHOD OF MAKING A CAST ANOD E WITH HOOK Filed NOV. 18, 1970 FIG. la

PRIOR ART FIG. 3 -FIG. 4

FIG. Ib

' PRIOR ART INVENTOR. CARL G. KARNA ATTORNEYS United States Patent 3,7 08,417 METHOD OF MAKING A CAST ANODE WITH HOOK Carl G. Kama, Wheaton, Ill., assignor to R. Lavin & Sons, Inc. Filed Nov. 18, 1970, Ser. No. 90,609 Int. Cl. B01r 3/04 US. Cl. 204286 2 Claims ABSTRACT OF THE DISCLOSURE There is disclosed a method for making a cast anode having integrally formed therewith an extension which is subsequently bent into a hook.

BACKGROUND OF THE INVENTION Electro-plating with copper anodes typically requires hanging the anode in the electrolitic solution by a hook which furthermore performs the function of making electrical contact with the positive terminal of the power source. In the past copper anodes have been cast in generally rectangular form and have been provided in a subsequent operation with a tapped hole at the top which receives the threaded shaft of a separate hook. This arrangement while satisfactory for many years, nevertheless requires a number of different operations to prepare the anode for use. It is the purpose of the present invention to simplify the manufacture of anodes of this type.

SUMMARY OF THE INVENTION In accordance with the present invention a copper or other metal anode is cast preferably in flat rectangular form having integrally cast therewith a tongue-like extension. After casting, the tongue is simply bent into the form of a hook, thus eliminating steps such as machining, drilling, threading, etc.

BRIEF DESCRIPTION OF THE DRAWING FIGS. la and 1b illustrate respectively the prior standard copper anode with hook attached thereto and the standard mold for making such anode;

FIG. 2 illustrates a mold in which the new anode may be cast;

FIG. 3 illustrates the new anode as it would look coming from the mold; and

FIG. 4 shows the new anode after the book has been formed.

BRIEF DESCRIPTION OF PREFERRED EMBODIMENTS Referring now to the drawing and initially to FIGS. 1a and 1b, a mold has been illustrated which is typical of the mold forms'used to cast prior standard copper anodes now being manufactured. The mold 10 will produce a flat rectilinear or oblong anode 11 whose length is somewhat greater than its width. A neck 12 formed in the mold by extension 12' is formed along the upper side 13. After casting, the neck 12 can be drilled to provide bore 14 which will receive the tapped lug 15. A brass hook 16 having a threaded shaft 17 will be threaded into the lug in order to secure the hook to the anode.

In FIG. 2 a mold 18 for producing the new self-hook anode of the invention has been illustrated. The mold 18 has a main c g e tion 184. similar to that of the standard mold. A rectangular elongated extension 19 of leSser depth 19a connects the respective depths of the interiors 18a and 19a by an inclined face 191;.

With reference to FIG. 3, the new self-hook anode 20 produced by the mold 18 has been illustrated. The anode 20 has a lug or tongue 21 connected to the main body of the anode 20a by an intermediate triangular section 22. As will be seen with reference to FIG. 4 the tab 21 can be bent into a hook 25 which in the preferred design is an arcuate continuation of the face 22a of section 22. The self-hook anode 20 thus is cast with the lug or tongue 21 integral therewith and by simple bending of the tab, several operations otherwise thought necessary are avoided. Further, since the cast hook is integral with the main body of the anode, mechanical strength is excellent and transmission of electrical energy is enhanced. Since the material of the hook is the same as the anode, no contamination in the electroplating process can occur.

The foregoing description relates to a particular embodiment of the invention and is therefore representative. In order to appreciate the scope of the invention, reference should be made to the appended claims.

What is claimed is:

1. A self-hook anode comprising a thick rectangular principle body having narrower end sides and two broader planar sides, having integrally formed an extension of the body, said extension is integrally attached to the body at one of its end sides by an intermediate triangular tapered support section adjacent to the body wherein the taper-ing extends from one of the broad planar sides of the body, one side of the support section is coplanar with the remaining broad planar side of the body and a curved tongue section extending from the support section, wherein the curvature of the tongue is a continuation of one face of the support section, said tongue having a substantially uniform cross-section which is thinner than the thickness of and narrower than the width of the body section.

2. A method of forming metal anodes comprising casting an anode to have a thick rectangular principle body portion having narrower end sides and two broad planar sides and having integrally formed thereto an extension of the body which is integrally attached to the body at one of its ends by an intermediate triangular tapered support section adjacent to the body and is tapered from the body to a tongue which is substantially thinner than the body portion and has a substantially uniform cross-section which is narrower than the width of the body section and wherein the tapering extends from one of the broad planar Sides of the body and has a side which is coplanar with one of the broad sides of the body and, after casting, bending the tongue portion to form a hook for handling the anode and for making electrical contact with a power source.

References Cited UNITED STATES PATENTS 639,811 12/1899 Haas 204286 2,666,029 1/1954 De Quasie et al. 204286 684,291 10/1901 McCoy 204281 JOHN H. MACK, Primary Examiner R. I. FAY, Assistant Examiner

Images