Improvements in Apparatus for Coating Metal Articles by Electro- deposition.
Year: 1897

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 11 of the Patents, &c., Act, 1883), as required by
the decision of the Chief Examiner of the 14th day of May 1898.
Date of Application, 17th June, 1897
Complete Specification Left, 2nd Nov., 1897-Accepted, 11th Dec., 1897
Improvements in Apparatus for Coating Metal Articles by Electro-
deposition.
I, GEORGE HARRY NASH, of 172, Lozell's Road, Aston, Birmingham, in the County
of Warwick, Commercial Traveller, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in apparatus for coating metal articles
of all kinds by electro-deposition.
In carrying out my invention; in the usual vat containing the required solution,
I mount a receiver or vessel (for containing the articles to be plated) in such a
manner that it receives a rocking movement from any suitable arrangement such
as an eccentric, the necessary connections for the electric current being effected by a
flexible cable or in any other suitable manner.
By this arrangement it will be obvious that as the receiver is rocked the articles
in the process of plating will be constantly moved over one another and be thereby
burnished.
Studs or plates are provided in the receiver for conveying the current to the
articles to be plated.
Improvements in Apparatus for Coating Metal Articles by Electro-
deposition.
I, GEORGE HARRY NASH, of 172, Lozell's Road, Aston, Birmingham, in the County
of Warwick, Commercial Traveller, 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 improvements in apparatus for coating metal articles
of all kinds by electro-deposition.
In carrying out my invention I mount in the usual vat containing the required
solution, a box or vessel (for containing the articles to be plated) the said box being

page_text: adapted to have a rocking movement imparted to it by suitable mechanism such as
an eccentric or crank, flexible cables or other suitable connections being employed
for conveying the electric current to the said box.
1
To enable my invention to be fully understood I will describe the same by
reference to the accompanying drawings, in which ;-
Figure 1 is a sectional side elevation of my improved apparatus; and,
Figure 2 is a sectional end view of the same:"
Figure 3 is a plan view of the oscillating box; and
Figure 4 is a longitudinal section of the same:
Figures 5 and 6 are longitudinal sections illustrating details of construction.
a is the vat or tank for containing the solution and 6 is the box for containing
the articles to be plated the said box being made of suitable non-conducting
material having perforated walls to allow the ingress and egress of the electrolytic
solution and having arranged upon the bottom a series of conducting strips c, c
which are in electrical connection through the strip d with the uprights e, e to
which the conducting cable f is attached. This box is mounted in a cradle 9 also
composed of non-conducting material, say for instance wood, and provided with
trunnions h, h by which it is carried in two hangers i, i depending from bars j, j
upon the top of the vat a. I find it advantageous to thus arrange the box b in a
cradle as it permits of the said box being readily introduced into and removed from
the vat a, it is to be understood, however, that if desired the trunnions h, h may
be directly applied to the said box. When the box is thus mounted in a cradle
it is provided with handles k, k for facilitating the handling of the same.
As hereinbefore stated any suitable mechanism can be provided for oscillating
the said box, in the drawing (Figures 1 and 2) I have represented the box as being
oscillated through the medium of a crank 7 the pin of which is connected by a rod m
to a pin n at one side of the cradle. With this arrangement it will be obvious that
as the crank is rotated the desired oscillation of the box will take place_causing
the articles which are loosely placed therein to roll backwards and forwards in the
said box the said strips c, c in the bottom of the box serving to ensure the necessary
supply of electric current.
The metallic plates forming the anode are indicated by the dotted lines at o, o in
Figure 1 and represented as being suspended from the bars j, j; in order, however,
to produce as rapid a deposit as possible I find it advantageous to attach anode
plates p, p to the sides and bottom of the cradle g, as clearly indicated in Figure 4,
the said plates being held in position by the angle pieces q, q. I also find it
advantageous to provide the box 6 with a lid r which has also an anode plate p
affixed upon it. These plates P, P are represented as being connected with the
electrical generator by a flexible cable s Figures 1 and 2.
The oscillation of the box causes the articles therein to rub one against another
whereby they are burnished during the plating process.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I would have it understood
that I am aware that it has been previously proposed to employ apparatus for coating
metal articles by electro deposition in which the articles are burnished by causing
them to rub one against another in receptacles having simple rotation or gyratory
oscillating or other movement compounded with rotation and to such apparatus
I make no general claim, but I declare that what I claim is:
1. Apparatus for coating metal articles by electro-deposition wherein a box
or receptacle for containing the articles to be coated is mounted in the electrolytic
tank so that it can be oscillated therein, substantially as described.
2. In apparatus for coating metal articles by electro-deposition wherein a rocking
or oscillating box is employed for containing the articles to be plated, arranging
the said box in a cradle, substantially as, and for the purpose, described.
3: In apparatus for coating metal articles by electro-deposition wherein an
oscillating box is employed for containing the articles to be coated, the combination

page_text: with the said box or with the cradle containing the box of anode plates fixed
thereto and oscillating therewith, substantially as, and for the purpose, described.
4. The improved apparatus for coating metal articles by electro-deposition, con-
structed and arranged substantially in the manner hereinbefore described and
illustrated in the accompanying drawings.
תנו
1
1
1005
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for Applicant.