US830918A - Anode. - Google Patents

Description

PATENTED SEPT. 11, 1906.

.1, N-BLSON.

ANODE. APPLICATION FILED JUNE 28, 1906.

ii-575 Mi r I.

' to be plated,

UNITED smrns PATEN T OFFICE.

JOHN NELSON, 0F lEltU, ILLINOIS.

ANODE.

Patented Sept. 1 1, 1906.

.To ILZZ whmn it may concern;

Be it known that I, Jonx NELsox. a citizen of the United States, residing at Peru, in the county of Lasalle and State of Illinois,

ave invented a new and useful Improvement .in Anodes, of which the following is a specification.

My invention relates particularly to anodes for use in electroplating apparatus; and my primar object is to provide an improved anode of t at class adapted to support the material to be used forplating purposes in granular, lump, or scrap form so disposed as to, expose to action' the maximum surface possible of the metal which is to enter into the electrolyte.

My invention is illustrated in the accome panying drawings, in which Figure 1 represents a plan view ofelectroplating apparatus constructed in accordance with my invention; Fig. 2, a view of a onefaced anode with its envelop removed; Fig. 3, a View of the same with the envelop or porous sheath applied; Fig. 4, a broken vertical section taken as indicated at line 4 of Fig. 3; Fig. a section taken as indicated at line 5 of Fig. 3, and Fig. 6 a section of a twofaced anode.

In the construction illustrated, A represents a tank; B B, two series of one-faced border or wall anodes; B an intermediate series of two-faced anodes; B, rods or bars of conductim material extending across the tank and supporting the anodes; C, cathode rods or bars adapted to support the articles and D a generator having conductors D D, the former of which is connected with the anode-bars and the latter of which is connected with the cathode-bars.

The anodes B B are of like constructimi. Each comprises a conducting-bar I), prefer ably of graphite, vertical marginal cleats or strips 1), carried by one face thereof, a bottom cleat or strip connecting the lower ends of the cleats b, and a porous envelop b preferably of fibrous material, permitting free circulation of the electrolyte. The

. cleats, which may be of wood, are preferably supported on shouldered dowels b leaving spaces 6 between them and the graphite bar for the circulation of the electrolyte.

The l laced together, for

envelop may be formed of a coarse canvas sheet strptclied across the cleated face of the bar and having its bottom portion folded 'up over the lower edge of the bar and its lateral portions folded over the lateral edges of the bar, the free ed es of the sheet being joined by a lacing I). lhus is formed a pocket bof substantially the length of the graphite bar, said pocket being open at its top to enable grain or lump nickel to be filled in at the point indicated-b the arrow, as required. The material may be supplied by means of a small shovel. The upper end of the bar is equipped witlra metallic member I) for connection with the anode-bar.

The anodes B are similar to those already described except that they are equipped with cleats on both sides and have envelops lacing at the lateral edges of the bars, as indicated at b". Thus the intermediate anodes have pockets on both sides of their graphite bars.

It will at once be evident to those skilled in the art that the improved construction provides for tree circulation of the electrolyte-and contact with the metal (designated d) at an unlimited number of surfaces of the particles, an even distribution of the material with reference to the plate, and the ready maintaining of that condition. Moreover, while the maximum contact of electrolyte and anode. material is provided for and also the equallv-important feature of distribution looked after, the device is exceedingly simple and cheap of construction.

The device has been described in detail for clearness of understanding, and no undue limitation is to be understood therefrom.

What I regard as new, and desire to secure 'by Letters Patent, is'

1. An anode, comprising a plate equipped with vertical marginal cleats, and a porous envelop forming therewith a. pocket open at its upper end, for the purpose set forth.

.2. An anode, comprising a plate equipped with vertical marginal cleats, and a porous envelop comprising a sheet stretched across the cleatcdface of said plate and having its lower margin folded under the lower edge of the plate and its lateral margins folded and the purpose set forth.

3. An anode, comprising a plate having cleats supported on one side thereof and spaced apart frorn the plate, and an envelop forming therewith a pocket open at the upper end.

4. An anode comprising a plate equipped on tWo opposite surfaces with marginal vertieal cleats, and an envelop forming therewith two vertical pockets open at their upper ends, for the purpose set forth. I JOHN NELSON.

In presence of.

RUDOLPH F. STRUEVER,

L. DENNY.

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