IMPROVEMENTS IN THE MANUFACTURE OF METAL SHEETS FOR SHEATHING SHIPS AND OTHER VESSELS, AND FOR IISES
Year: 1854

page_text: LETTERS PATENT to Arthur Warner, of 11, New Broad Street, in the City
of London, for the Invention of "IMPROVEMENTS IN THE MANUFACTURE OF
METAL SHEETS FOR SHEATHING SHIPS AND OTHER VESSELS, AND FOR
IISES"
Sealed the 31st October 1854, and dated the 5th May 1854.
PROVISIONAL SPECIFICATION left by the said Arthur Warner at the
Office of the Commissioners of Patents, with his Petition, on the 5tli
May 1854.
I, ARTHUR WARNER, of 11, New Broad Street, in the City of London, do
hereby declare the nature of the Invention for "IMPROVEMENTS IN THE MANU-
FACTURE OF METAL SHEETS FOR SHEATHING SHIPS AND OTHER VESSELS, AND FOR OTHER
USES," to be as follows:--
This Invention has for its object the manufacture of sheets of metal princi-
pally intended for sheathing ships and other vessels, but also applicable for
other uses where sheet metal is employed; and the improvements consist of
coating or depositing copper on sheet zinc which has been previously coated
with tin or lead, or compounds of those metals.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Arthur Warner in the Great Seal Patent Office on the
4th November 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ARTHUR
WARNER, of 11, New Broad Street, in the City of London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifth day of May, in the year of our Lord One
thousand eight hundred and fifty-four, in the seventeenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the
said Arthur Warner, Her special licence that I, the said Arthur Warner,
my executors, administrators, and assigns, or such others as I, the said
Arthur Warner, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use;
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN THE
MANUFACTURE OF METAL SHEETS FOR SHEATHING SHIPS AND OTHER VESSELS, AND
FOR OTHER USES," upon the condition (amongst others) that I, the said Arthur
Warner, by an instrument in writing under my hand and seal, should particu-
larly describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed in the
Great Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Arthur Warner, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement thereof (that is to say):-
This Invention has for its object the manufacture of sheets of metal princi-
pally intended for sheathing ships and other vessels, and such sheets may also
be applied to other uses. And the Invention consists of coating sheets of zinc
(previously coated with tin or lead) with sheets of copper or its alloys, thus
producing sheets of metal very suitable for sheathing as well as for other uses,
each sheet having one surface of coated zinc, and the other of copper or alloyed
copper. I prefer that the copper should be of much less thickness than the
zine, particularly when intended for sheathing, as the cost of sheathing is thus
more largely reduced; but this may be varied aacording to the purpose to
which the compound sheet metal is intended to be applied. The sheets of zinc
are to be first coated with lead or with tin, which may be done by any of the
processes heretofore resorted to, and which are well known, and form no part

page_text: of my Invention; and when for sheathing purposes, I prefer that the sheets
of zinc should have been first coated on both sides with lead, such as are now
sold by Messrs. Morewood & Co.; or other coated zinc may be used, so long as
the zinc be well coated with lead; or the zinc, when cost is not an object, is to be
first coated on both sides with tin. The sheets of copper are each to be flushed
with solder on one side. A sheet of coated zinc is to be placed on the solder
on the sheet of copper, and the two sheets are to be placed on an iron table,
the sheet of copper being downwards; and on to the sheet of zinc a plate of
iron is to be pressed, by a screw or screws, or otherwise, the two surfaces which
are brought in contact with each other having been first moistened with the
ordinary solution used when soldering. Under the table is a hollow box to
receive an iron heater, somewhat larger than the sheets of metal placed on the
table; this heater is to be heated in a suitable fire or oven, or otherwise, to
such a degree of heat as will cause the solder on the surface of the copper to
melt, by the heat of the heater passing through the table and through the
sheet of copper; and when the solder is found to run, the pressure on the
surface of the sheet of coated zine is to be increased, so as to ensure perfect
contact of all the parts; the heater is then to be moved back out of the way
and to be again heated. The solder which I have employed for these purposes
is composed of about two parts lead and one part tin, but this may be varied.
The solder between the two sheets having been allowed to cool or set, the
compound sheet is then to be clipped or trimmed, to make the edges true.
When it is desired to coat both sides with copper the process is to be repeated,
and a sheet of copper is to be similarly applied to the other side of the
coated zinc.
Having thus described the nature of my said Invention, and the manner of
performing the same, I do not confine myself to the details; but what I claim
is, the coating of sheets of zinc (previously coated with lead or tin) with
copper or alloyed copper, and thus to obtain compound sheet metal, such as
herein described.
In witness whereof, I, the said Arthur Warner, have hereunto set my
hand and seal, this Fourth day of November, in the year of our Lord
One thousand eight hundred and fifty-four.
ARTHUR WARNER. (L.S.)
Witness, JOHN EDKINS.