IMPROVEMENTS IN THE ELECTRO PLATING OF ROLLERS 6
Year: 1883

page_text: LETTERS PATENT to David Appleton of the Engraved Roller Plating
Company of Manchester in the County of Lancaster for an Invention of
IMPROVEMENTS IN THE ELECTRO PLATING OF ROLLERS
6
J
PROVISIONAL SPECIFICATION left by the said David Appleton at the
Office of the Commissioners of Patents on the 22nd October 1883.
DAVID APPLETON of the Engraved Roller Plating Company of Manchester
in the County of Lancaster, "IMPROVEMENTS IN THE ELECTRO PLATING OF
ROLLERS
"
My Invention relates principally to a former Invention for which Her Majestys
Letters Patent bearing date the sixth of January in this current year and
numbered 88 have been granted to me. According to the said Invention I made
an electro deposit of nickel upon copper printing or embossing rollers in order to
increase the durability of the printing surface and to lessen the tendency of the
colors and matters to act upon such surface. In the electro plating operation I
have experienced great difficulty in obtaining a firm and uniform deposit owing to
the formation of gas bubbles upon the surface of the roller and to difficulty in
dislodging them. The object of my present Invention is to prevent the accumulation
of these bubbles upon the roller. To this end I employ a brush which is in contact
with the roller during the plating operation the roller being rotated continuously
or intermittently as preferred. The brush or the acting surface thereof is
suspended from the cathode rod or from a suitable part so that the ends of the
parts of the brush usually termed bristles or of some of them touch the surface of
the roller so as to remove any adhering bubbles. By preference vegetable fibre or.
spun glass or other substance not liable to be acted upon by the plating solution is
used in the making of the brush. Two or more brushes may be used in place of
one. If preferred the brush may rest upon the roller or be below or on either side
of the roller or in any suitable position so long as the desired result is obtained.
I do not confine myself to the use of a brush and may use a bar or roller or part of
rubber or other suitable material nearly touching the surface to be plated or
resting upon such surface; neither do I limit the application of my Invention to
electro plating with nickel as it might be used in the electro deposition of brass and
cobalt

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said David Appleton in the Patent Office on the 19th April 1884.
DAVID APPLETON of the Engraved Roller Plating Company of Manchester
in the County of Lancaster "IMPROVEMENTS IN THE ELECTRO PLATING OF
BOLLERS
"
My Invention relates principally to a former invention for which Her Majestys
Letters Patent bearing date the sixth of January in this current year and
numbered 88 have been granted to me. According to the said invention I made
an electro deposit of nickel upon copper printing or embossing rollers in order to
increase the durability of the printing surface and to lessen the tendency of the
colors and matters to act upon such surface. In the electro plating operation I
have experienced great difficulty in obtaining a firm and uniform deposit owing
to the formation of gas bubbles upon the surface of the roller and to difficulty in
dislodging them. The object of my present invention is to prevent the accumulation
of these bubbles upon the roller. To this end I employ a brush which is in contact
with the roller during the plating operation the roller being rotated continuously
or intermittently as preferred. The brush or the acting surface is suspended from
the cathode rod or from a suitable part so that the ends of the parts of the brush
usually termed bristles or of some of them touch the surface of the roller so as to
remove any adhering bubbles.
...
In order that my invention may be fully understood I have attached hereto a
sheet of drawings made to a scale of about two inches to the foot and marked with
letters of reference. In the said drawings Fig: 1 represents a vertical cross section
of a bath adapted for the plating of two rollers at once Fig: 2 being a longitudinal
sectional elevation of the same. In the said Figs. a, a, are two rollers which are
suspended from the cathode rods b, b, by means of the hooks or links c, o, and are
caused to revolve continuously or intermittently in the same direction or to rotate
or to rock to and fro as preferred. In the example the rollers are rotated by
means of the overhead driving shafts'd, d. Driving bands or cords pass partly
around the grooved ends of the hollow tapered mandrils h which carry the rollers.
From the rods b, b, are also suspended brushes e, e, which are provided with arms
ff, which are adjustable in clamps g, g, which are secured to the said rods. By
adjusting the said arms in the clamps the bristles of the brush can be made to just
touch the surface of the roller or to press lightly upon it so as to have the desired
effect. By preference vegetable fibre or spun glass or other substance not liable to
be acted upon by the plating solution is used in the making of the brush. Two
or more brushes may be applied to each roller in place of one. If preferred the
brush may rest upon the roller or be below or on either side of the roller or in any.
other suitable position so long as the desired result is obtained. I do not confine
myself to the use of a brush and may use a bar or roller or part of rubber or other
suitable material nearly touching the surface to be plated or resting upon such
surface; neither do I limit the application of my invention to electro plating with
nickel as it might be used in the electro deposition of brass and cobalt.
Having now fully set forth and indicated the nature of my said invention and
the manner in which I carry the same into practical effect I would have it to be
understood that I claim :-
First. The method of removing gas bubbles from the surfaces of rollers during
the electro plating of the same substantially as set forth and indicated.

page_text: And secondly. In the electro plating of rollers the use of brushes substantially as
and for the purpose set forth and indicated.
In witness whereof I the said David Appleton have hereunto set my hand and
seal this eighteenth day of April in the year of our Lord one thousand eight
hundred and eighty-four
Signed, sealed, and
delivered in the
presence of
EDWARD K. DUTTON
41 John Dalton St, Manchester.
(Agent for the Patentes)
DAVID APPLETON (L.S.)