US807973A - Process of obtaining marketable eleectrolytic deposits. - Google Patents

Description

UNITED STATES PATENT OFFICE.

PIERRE STEENLET, OF BRUSSELS, BELGIUM, ASSIGNOR TO MAROEL PERREW LLOYD, OF BRUSSELS, BELGIUM.

PROCESS OF OBTAINING IVIARKETABLE ELECTROLYTIC DEPOSITS.

Specification of Letters Patent.

Patented Dec. 19, 1905.

Application filed Novemberfl, 1903. Serial No. 180,155.

This invention relates to the art of electro plating or electrodepositing, and it has reference particularly to those processes in this art in which the anode and cathode are separated by a suitable diaphragm.

It is well recognized that in the electroplating operations a very material improvement results from adding to the electrolyte small quantities of certain organic materials, as albuminoids. It is also a well-known fact that such additions to the electrolyte are removed from the latter by electrolytic action or occluded in the deposit, whereby the latter is rendered brittle or irregular and cannot be treated in metallurgy unless it is previously melted.

I have discovered that the objections,at tending the old method of using organic materials in connection with electrodepositing may be overcome by employing a diaphragm impregnated with or otherwise made to carry in suitable disposition and quantity the organic substance, which latter is rendered insoluble. The process then becomes one in which the organic substance is not influenced by the electrolytic action or by the electrolyte itself, with the result that it does not en ter into the composition of the resultant deposit and does not deleteriously affect the same. Said albuminous or other organic I substance being made insoluble and the diaphragm charged therewith being interposed between the anode and the cathode, the electrolytic action on the resultant deposit remains the same as to qualitythat is, an increased and regular deposit is obtainedand, further, said increased deposit is not mixed with organic substances and the deposited metal may be directly treated in metallurgy or used directly as metal plates. Such results have never been obtained by the old processes, whereby brittle or irregular deposits have been only obtainable.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

ing witnesses.

PIERRE STEENLET. Witnesses:

JOSEPH MARKL, GREGORY PHELAN.

It is hereby certified that in Letters Patent No. 807,973, granted December 19,

1905, upon the application of Pierre Steenlet, of Brussels, Belgium, for an improvement in the "Processes of Obtaining Marketable Electrolytic Deposits, an error appears in the printed specification requiring correction, as follows: On page 1, line 66, the word from should read form; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the ease in the Patent Office.

Signed and sealed this 2nd day of January, A. 1)., 1906.

[SEAL] F. I. ALLEN,

Commissioner of Patents.