Improvements in Electro Plated Goods and in the Process of Manufacturing the same.
Year: 1888

page_text: Date of Application, 21st Nov., 1888
Complete Specification Left, 15th Aug., 1889-Accepted, 21st Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in Electro Plated Goods and in the Process of
Manufacturing the same.
I, FREDERICK AUGUSTUS OETZMANN of 67 to 79 Hampstead Road in the County or
Middlesex Complete House Furnisher do hereby declare the nature of this invention
to be as follows:-
Many electro plated goods such as tea and coffee pots cruet frames spoons forks and
the like are exposed to greater wear in certain places than in others and when the
plating is of the same thickness throughout as is the present practice the article
becomes worn out by the coating being penetrated in some one place whilst the greater
part of the surface is still in good condition.
According to my invention I provide the articles with a thicker coating at the parts
most exposed to wear and I do so by protecting the other parts during a certain
portion of the coating operation. Preferably it is during the first part of the coating
that I only doposit upon those places where it is desired to obtain the greatest thick-
ness, the others being protected by a suitable varnish or resist. When the desired
additional thickness has been obtained for those portions I remove the varnish or resist
and continue the coating in the ordinary way.
D
COMPLETE SPECIFICATION.
Improvements in Electro Plated Goods and in the Process of
Manufacturing the same.
1, FREDERICK AUGUSTUS OETZMANN of 67 to 79 Hampstead Road in the County
of Middlesex, Complete House Furnisher, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement :-
.
-
Many electro plated goods such as tea and coffee pots cruet frames spoons forks and
the like are exposed to greater wear in certain places than in others and when the
plating is of the same thickness throughout as is the present practice the article
becomes worn out by the coating being penetrated in some one place whilst the
greater part of the surface is still in good condition.
According to my invention I provide the articles with a thicker coating at the
parts most exposed to wear and I do so by protecting the other parts during a certain
portion of the coating operation. Preferably it is during the first part of the coating
that I only deposit upon those places where it is desired to obtain the greatest thick-
ness, the others being protected by a suitable varnish or resist. When the desired
additional thickness has been obtained for those portions I remove the varnish or resist
and continue the coating in the ordinary way.
The varnish or resist which I employ is ordinary white varnish.
This method gives excellent results but similar effects may be produced in other and
cheaper ways, namely-(1). By placing the anode nearer to the part where the thick coat-
ing is required than to the other parts and by the use of additional anodes near where the
thicker coating is required. (2). In cases where it is practicable by immersing the
part which is to receive the thicker coating longer than the other parts. (3). By
frequently scratching the cyanide of potassium from the part to receive the thicker
coating so that the deposition of the metal takes place more rapidly in this part.
It will be obvious that these methods may be used either separately or in conjunction
with one another.

page_text: 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 :-
Electro plated goods and the process of manufacturing the same substantially as
described.
3
.
1001
FRED. A. OETZMANN.