Improved Method of Producing Solid Metal Sheets by Electro- deposition, suitable for Compass Cards, Stencils, and Openworked Flat or Curved Articles for Decorative and other Uses.
Year: 1887

page_text: Date of Application, 22nd Sept., 1887
•Complete Specification Left, 22nd June, 1888
Complete Specification Accepted, 3rd Aug., 1888
Improved Method of Producing Solid Metal Sheets by Electro-
deposition, suitable for Compass Cards, Stencils, and Openworked
Flat or Curved Articles for Decorative and other Uses.
I, WALLACE JOHN REYNOLDS, of 2 Heath Street, Commercial Road East, Middle-
sex, Nautical Instrument Maker, do hereby declare the nature of this invention to be
as follows:-
The object of this invention is to make articles solid in themselves, but of flat or
curved shape, with interstices or openings to form patterns or designs, to render
such metal articles suitable for ships compasses in place of, or in conjunction with,
the present forms of cards, transparent and other, or for mounts or surface pieces,
inlaid or not for decorative and other uses-for stencils and general purposes, for
which they can be available-The articles being produced through a novel method
or process by electro-deposition.
As an example of my invention when employed for the production of, or an
equivalent for, à compass card, I take a circular sheet of highly polished plate glass
and paint the representation of a compass card, or the reverse of one, on one of
the surfaces and when the paint dry I make a raised edge in putty or cement
round the glass to form a kind of well, or basin, into which Fluoric acid can be
poured to the desired depth. This acid eats into that part of the glass which is not
painted.
When the glass is sufficiently bitten away, I wash the acid off and remove the
cement edging, and make the glass clean by removing the paint by the aid of turps
or other agent. I then take a piece of marble or of glass and rub the surface of
the partly prepared sheet of glass, using emery powder and water for roughening
the raised or unbitten parts of the glass surface, namely, that part from which the
paint had been removed.
A coating of black lead or its equivalent is then put upon the glass, the particles
adhering to the roughened portion only, said black lead or carbonaceous body acting
as an electrode when the glass is suspended in a bath of sulphate of copper, the
other pole being in a porous pot also within the path and in electric contact.

page_text: The length of time the plate is left in the bath is determined by the desired
thickness of the deposition which takes place in a well known manner, so that the
plate of glass when removed has affixed to its surface a metal body but only at the
parts which had been previously coated with the carbon.
The result is, an article, in solid metal, with interstices or spaces, between the
division points or indications of the compass, in bold relief, with sharp well formed
edges, the article being ready for mounting as a card or dial.
The production of articles in solid metal by electro-deposition and as hereinbefore
described, is subject to variations in detail, the roughing of the glass serving as a
holding medium for an electrode on which the deposition takes place, being the
essential feature in connection with my said invention.
Dated this 22nd day of September 1887.
H. GARDNER,
166, Fleet Street, London,
Agent for the said Wallace John Reynolds.

page_text: Improved Method of Producing Solid Metal Sheets by Electro-
deposition, suitable for Compass Cards, Stencils, and Openworked
Flat or Curved Articles for Decorative and other Uses.
I, WALLACE JOHN REYNOLDS, of 2 Heath Strect, Commercial Road East, Middle-
sex, Nautical Instrument Maker 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 :-
The object of this invention is to make articles solid in themselves but of flat or
curved shape with interstices or openings to form patterns or designs, to render such
metal articles suitable for ships compasses in place of or in conjunction with the
present forms of cards, transparent or other, or for mounts, or surface pieces, inlaid
or not, for decorative and other uses, for stencils and general purposes for which they
can be available, the articles being produced through a novel method or process by
electro-deposition.
As an example of my invention when employed for the production of, or an
equivalent for, a compass card, I take a circular sheet of highly polished plato glass
and paint the representation of a compass card, or the reverse of one, on one of the
surfaces and when the paint is dry, I make a raised edge in putty or cement round
the glass to form a kind of well or bason, into which Fluoric acid can be poured to
the desired depth. This acid eats into that part of the glass which is not painted, and
when the glass is sufficiently bitten, I wash the acid off and scrape away the cement
edging and make the glass clean by removing the paint by the aid of turps or other
agent, I then take a piece of marble or glass and rub the surface of the partly
prepared sheet of glass, using emery powder and water for roughening the raised or
unbitten parts of the glass surface, namely, that part from which the paint had been
removed.
A coating of black lead or its equivalent is then put upon the glass, the particles
adhering to the roughened portion only, said black lead or carbonaceous body acting
as an electrode when the glass is suspended in a bath of sulphate of copper, the other
pole being in a porous pot also within the bath and in electric contact.
The length of time the plate is left in the bath is determined by the desired
thickness of the deposition which takes place in a well known manner, so that the
plate of glass when removed has affixed to its surface a metal body but only at the
parts which had been previously coated with the carbon.
The result is an article, in solid metal, with interstices or spaces, between the
division points or indications of the compass, in bold relief with sharp well formed
edges, the article being ready for mounting as a card or dial.
The production of articles in solid metal by electro deposition and as hereinbefore
described is subject to variations in detail, the roughening of the glass serving as a
holding medium for an electrode, on which the deposition takes place, being the
essential feature in connection with my said invention.

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 :-
:-
1. The Improved method of producing solid metal sheets by electro-deposition
suitable for compass cards, stencils, and openwork flat, or curved articles, for
decorative and other uses as herein before described.
2. The preparation or treatment of glass as hereinbefore described and the utilization
of such prepared or treated surface for the reception of a substance to serve as an
electrode for the production of metal sheets in solid form by electro-deposition as set
forth.
The 22nd day of June 1888.
H. GARDNER,
166, Fleet Street, London,
Agent for the said Wallace John Reynolds.