Improvements in or relating to the Manufacture of Metal Sheets or Strips by Electro Deposition.
Year: 1896

page_text: Date of Application, 20th Nov., 1898-Accepted, 2nd Jan., 1897
COMPLETE SPECIFICATION.
Improvements in or relating to the Manufacture of Metal Sheets or
Strips by Electro Deposition.
1, KAREL KLIŏ, of Meadowside, Lancaster, in the County of Lancaster,
Artist, do horeby declare the nature of this invention and in what manuer the
same is to be performed, to be particularly described and ascertained in and by
the following statement:-
This invention has for its object to produce metal sheets or strips of any required
length by electro metallurgical deposition.
The invention will be understood from the following description, reference being
had to the accompanying drawing, which shows an apparatus for carrying my
invention into practice, the electro depositing bath being shown in section.
When the
1 tako a rotatable roller A of suitable metal for use as a cathode. This roller
may be plain for the production of a plain sheet, or engraved or otherwise prepared
for producing an engraved or perforated sheet. B are curved sheets of metal,
forming the anodes from which the metal sheet to be produced is electro deposited
on the roller and C is the electro depositing bath. The roller A is mounted so as
to revolve in the bath C, and the greater part of it is submerged in the liquor.
contained therein. It is capable of being rotated by the drum or pulley D or by
other suitable means. That portion of the surface of the roller, on which the metal
is to be electro deposited, is coated with a slight covering of suitable resistant.
material, such as tallow. This coating is so thin, that whilst it allows the process
of deposition to proceed, prevents the deposited metal from coming into actual
contact with the cathode and allows of the subsequent removal of the deposited
metal. The bath C is filled with the solution up to about the line E.
roller has been revolved in the bath a sufficient time for a thin ebeet of metal to be
deposited thereon, the deposited metal is cut transversely across the roller at the
point F. The deposited metal is then stripped off the roller to say the point G,
and the edge of it is attached to one end of a band or bands H which pass and
repass through the solution in the bath over and under the rollers I. The other.
end of the band is attached and wound on the reel J. This reel is turned in any
suitable manner, such, for instance, by means of a cord passing over pulleys with a
weight K at the end, which will also regulate the tension of the band or bands, and
the sheet of metal attached thereto. The roller A coutinues to revolve very
slowly, the surface above the tank being smeared with tallow or other resistant
material as the deposited motal is stripped off and before it descends again into the
liquid in the bath. As the surface of the roller A slowly emerges froin the liquid
at or about the point G, the metal deposited thereon is stripped off and is drawn by
the band or bands over and under the rollers I. The stripped off sheet then forms
the cathodes, which receive additional successive deposits on both sides from the
anodes B', the anodes dissolving into the liquid at a rate exactly equal to the rate
of deposition on the cathodes. Ultimately the sheet finally emerges from the
hath C, and after passing over the roller M passes under the roller N and is wound
on the reel J. As the metal sheet passes under the roller N a jet of hot water O
is projected against it for cleansing it from the metal io solution. Through the
water being hot, the metal dries before it is wound on the reel, and corrosion and
oxidation are consequently prevented. P is a drain for carrying away the water
from the jet. It will be seen that the band H is used simply at the commencement

page_text: of the process to draw the sheet through the bath, and when this has been effected
the band can be put aside and the sheet wound on to the reel J alone.
By the present invention the process is made continuous and the sheets or strips
can be made of any required length under the influence of the electrolizing action
of the current, without having to remove the cathode from the bath, the process of
deposition proceeding continuously without intermission.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is-
1. The improvement in the manufacture of plain, embossed or perforated metal
sheets or strips by electro deposition, whereby the process of deposition is made
continuous and sheets are produced of any required length, this result being
arrived at by making the cathode on which the metal is deposited in the form of a
cylinder or roller rotatable in the electro depositing bath under the influenco of the
electric current, the surface of the said cylinder being kept coated with a film of
resisting material, which while allowing the deposition to proceed as the roller
slowly rotates enables the metal as it is deposited in sufficient thickness to be
stripped or peeled off the roller continuously, substantially as described.
2. In the manufacture of metal sheets or strips by electro deposition, passing the
sheets, which are stripped or peeled off the roller in the manner described,
successively between anode plates submerged in the electro depositing bath in such
manner, as to form the cathodes, whereby the stripped off sheet receives additional
deposits on both sides, as fast as the anode plates dissolve in the liquid by the
electrolising action of the current substantially as set forth.
3. The process of making metal sheets or strips, whether plain, embossed or
perforated of any required length by electro deposition, substantially as herein
described.
4. In an electrolytic bath for the manufacture of metal sheets by electro
deposition, the arrangement therein of a rotary roller or cylinder adapted to form
the cathode on which the metal is electro-deposited, and curved anode plates
arranged in proximity thereto, in combination with a series of anode plates so
disposed in the bath as to allow of the deposited sheet which is stripped off the
cylinder being passed successively between them, substantially as and for the
purpose described.
5. The apparatus for manufacturing metal sheets or strips by electro deposition
substantially as bercin described and shown in the accompanying drawings."
Dated this 19th day of November 1896.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.