Improvements in or in connection with Apparatus for the Electro-deposition of Metals.
Year: 1894

page_text: Date of Application, 4th May, 1894-Accepted, 9th June, 1894
COMPLETE SPECIFICATION.
Improvements in or in connection with Apparatus for the
Electro-deposition of Metals.
1, Dr. HANS ALEXANDER of 28 Alexanderstrasse, Berlin, in the Empire of
Germany, do hereby declare the nature of this invention and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement :-
This invention relates to apparatus for the electro-depositing of metals which
differs from the arrangements heretofore constructed by the fact that the kathode
conductor is carried through the bath and having other improvements and
advantagtes all of which will be fully described hereinafter.
In the accompanying drawing
Fig. 1 is a plan.
Fig. 2 is a vertical section, and
Fig. 3 a vertical section on the line Y Y of Fig. 1.
The conductor for the positive anode enters from the left-hand side at A in
Fig. 1 whilst the conductor for the negative kathode enters from the right-hand
side at K; the last-mentioned kathode extends from the edge of the trough
directly into its interior and right through the same whilst the anodes are arranged
above and under the said kathode.
The articles to be treated are not as heretofore fastened to and suspended singly
from wires but are simply placed on supporting pieces or rods of the kathode
immersed in the bath and the places of contact are changed subsequently by shifting
or turning as required.
Small articles are placed upon a wire netting and the whole placed together
upon the supports. Such small articles are not turned over singly but are turned
over by placing another piece of netting of equal size upon the articles and
then turning over the whole arrangement quickly and simultaneously.
In many cases it is sufficient to strike or shake the nets in order to cause
all the articles situated thereon to change their positions to a sufficient extent.
The arrangement can be readily carried out in the form of stages at different
levéls for the purpose of utilizing deep baths to the fullest extent.
With the simple or single arrangement of anodes and kathodes and also with
the arrangement in stages or floors of a number of anodes and kathodes one
above the other means may be provided whereby with the aid of chains, ropes,
toothed racks, etc., the articles can be raised away from the anodes and kathodes
and also wholly out of the bath for the purpose of facilitating the introduction
and removal of the articles and the cleaning of all the conducting parts without
having to touch the liquid in the bath with the hands at all.
The advantages of this invention are as follows:-
1. The area of the bath is utilized to a considerably greater extent.
2. A great saving in hand labor and in material (copper wire).
3. A much greater amount of work is performed under the same circumstances.
4. All disturbance or hindrance in operation such as short-circuiting and the like
is obviated.
5. It is possible to allow the baths to be attended to by inexperienced persons
without any risk.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
:-
A galvanic bath arranged and constructed as described so that the articles to be
treated therein are not suspended on wires but are placed in the bath and supported
and treated therein substantially in the manner and for the purposes hereinbefore
:set forth.
Dated this 4th day of May 1894
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.