US875784A - Apparatus for the manufacture of copper electrotypes. - Google Patents

Description

No. 875,784. PATENTED JAN. 7,1908. S. 0. GOWPER-OOLES. APPARATUS FOR THE MANUFACTURE OF COPPER ELEGTROTYPES.

APPLICATION FILED MAR.5.1906.

' ments in Apparatus for the i\'l anufacture of anodes of the metal which it is desired to de- In order to free the electrolyte from suspend- Victoria street, Westminster, London, Enga pump and is projected bycentri-fugal force deposited so as to remove any air bubbles work serving to receive the cathodes c, c; the

"adapted to be rotated by any suitable means UNITED STATES PATENT OFFICE;

SHERARI) OSBURN (l()\\'PER-UOI.ES, OF LONDON, ENGLAND.

Specification of Letters Patent.

Patented Jan. 7, 1 908.

Application filed March 5. 1906- Serial No. 304.324.

0 all whom it may concern:

Be it known that I, SIIERARD ()saom. (rHYPER-(loans, a subject of the King of Great Britain, residing at Grosvenor Mansions,

land, lutvelinvented new and useful Improveopper Electrotypes, 'of which the following is a specification.

This invention has for its object a method and means for rapidly producing electrotypes or copper shells forprintingor other purposes.

According to my invention I make use of a vat preferably circular and the interior of which is fitted with a framework of wood or other suitable material adapted to receive the trays or cases filled with wax or other suitable composition forming the cathodes upon which the impressions are made for e ectro-typing. Alrame is suspended in the center of the vat in such a manner that it can be rotated, the said frame carrying the posit, and being advantageously )erforated to permitof the free circulation of t e electrolyte or set at an angle with open s aces be' tween. Theelectrolyteisintroduce through the bottom or'center of the vat by means of into the molds on which the metal is to'be that may be retained in the recesses thereof.

ed matter it is also advantageously forced by the pump through a filter.

To enable the invention to be fully understood I will describe it by reference to the accompanying drawin s, in which I Figure 1 is a vertical section of apparatus for manufacturing cop er electrotypes constructed according to tlie invention. Fig. 2 is a sectional plan view thereof.

a is the vat which is shown of circular form and b is the interior framework of wood with which the said vat is furnished, this framecathodes are connected by means of the wires d to terminals 0 upon insulating brackets f mounted u on the outside of the vat a.

g is the rame which is suspended within the vat a upon the central vertical shaft h and '11, t are the anodes carried by the said frame 9. These anodes, which are arranged vertically within the frame g, are provided with perforations j, Current is supplied to the anodes i from the central shaft h to which 'current is furnished by the brush l.

Z, Z are two (or morel inlet pipes extending up through. the bottom of the vat (L and through which the electrolyte is su )plied to the said vat from a ump; the sairl electrolyte may, as above (8SC-Iib0(l, be forced by the pump through a filter before entering the vat (L.

m, m are over-flow from the vat a.

The apparatus operates as follows, that is to say, the electrolyte is pumped into the vat a through the inlet pipes Z, l, and the frame 9 pipes for the electrolyte the upright shaft b so that the electrolyte entering the bottom of the vat is forced up into the revolving frame 9 and is projected by centrifugal force through the perforations in the anodes g and is thus caused to sweep rapidly over the whole of the surface of the oathodes c, c on which the metal is to be deposited, thereby removing any air bubbles that may be retained in the recesses thereof. By causing the electrolyte to circulate in this way not only are all air bubbles removed from the cathodes, as above described, but copper shells are produced free from pin holes at a rapid rate and at a current denslty varying from 500 to 1000 amperes or more per square foot.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. In an apparatus for the electro-deposition of. metal the combination with a vat for containing an electrolyte, of a cathode and a perforated anode mounted in said vat and means for continuously forcing the electrolyte through the perforations in the anode perpendicularly toward and against the face of the cathode, substantially as described.

'-2. In an apparatus for the electro-deposition of metal, the combination with a vat for containim an electrolyte, of a substantially cylindrical cathode stationarily mounted in said vat and a substantially cylindrical and perforated anode rotatably mounted in said vat whereby said electrolyte is agitated, substantially as described.

3. In an a paratus for the electro-deposition of meta, the combination with a vat provided with inlet and outlet ports for an electrolyte, said electrolyte being under pressure, of a cathode stationarily mounted in said vat, a perforated anode rotatably mounted in said vat and means for rotating said anode, substantially as described.

4. In an apparatus containing an electrolyte, of cathodes, means for supporting said cathodes in a substantially cylindrical form in said vat, a frame l revolubly mounted in said vat and anodes mounted on said revoluble frame in a substantially cylindrical form, substantially as i described. 5. In an apparatus for the electro-deposii tion of metal, the combination with a vat provided with inlets and outlets for an electrolyte, said electrolyte being under pressure, for the electro-deposi- 1 0 tion of metal, the combination with avat for ode? in a substantially cylindrical form in salt vat, and perforated anodes mounted on said revoluble frame in a substantially parallel form, substantially as described. I

f cathodes, means for supporting said cathvat, a frame revolubly mounted in said SHERARD OSBORN COWPER-OOLES. Witnesses:

WILLIAM JOHN MEEKs, PERoY READ GoLnRINo;

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