IMPROVEMENTS IN COATING OR COMBINING SHEET IRON AND STEEL WITH SHEET LEAD, ZINC, TIN, TUT
Year: 1855

page_text: LETTERS PATENT to Arthur Warner, of No. 11, New Broad Street, in
the City of London, Merchant, for the Invention of "IMPROVEMENTS IN
COATING OR COMBINING SHEET IRON AND STEEL WITH SHEET LEAD, ZINC, TIN,
TUT
"
Sealed the 30th November 1855, and dated the 4th August 1855.
COMPLETE SPECIFICATION filed by the said Arthur Warner at the Office
of the Commissioners of Patents, with his Petition and Declaration, on
the 4th August 1855, pursuant to the 9th Section of the Patent Law
Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ARTHUR
WARNER, of No. 11, New Broad Street, in the City of London, Merchant,
send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN
COATING OR COMBINING SHEET IRON AND STEEL WITH SHEET LEAD, ZINC, TIN,
COPPER, OR ALLOYS OF SUCH METALS," and have petitioned Her Majesty to grant
unto me, my executors, administrators, and assigns, Her Royal Letters Patent
for the same, and have made solemn declaration that I verily believe myself to
be the true and first Inventor thereof:
NOW KNOW YE, that I, the said Arthur Warner, do hereby declare that
the following complete Specification, under my hand and seal, fully describes
and ascertains the nature of my said Invention, and the mauner in which the
same is to be performed, viz:-

page_text: This Invention consists of coating or combining sheet iron and sheet steel
with sheet lead, zinc, tin, copper, or alloys of such metals, by applying soldering
metal between them, and subjecting them to heat whilst pressed together in a
flat or nearly flat state, the heat being applied through one or both of the
metals, so as to melt the soldering metal which is between them. The
soldering metal may be most conveniently applied by coating one or both of
the sheets or pieces of sheet metal which are to be combined, though this is
not essential.
Having thus stated the nature of my Invention, I will proceed to describe
more fully the manner of performing the same.
It is preferred in all cases that the sheet iron and sheet steel should first be
coated with lead, zinc, or tin, in the ordinary manner of dipping in moulten
metal, or by deposition from solutions; to neither of which processes of
coating, however, do I make any claim, they being well known; but it is not
essential that the sheet iron or steel should be first so coated.
Supposing it to be desired to coat a sheet of iron with a sheet of copper, or
with a slicet of an alloy of copper, I prefer to employ lead as an interposed
metal between the two sheet metals above mentioned, particularly when it is
intended that the combined sheets should be used for ship-building or other-
wise, where the sheets are liable to constant moisture, as by so doing the copper
or its alloys will not be preserved by galvanic action at the expence of the iron;
but in other cases a sheet of copper or of its alloys may be applied to a sheet of
iron or steel, according to my Invention, without the interposition of lead; and
I would state, that when lead is thus used between the sheets of metal before
mentioned, I prefer that the iron should be coated all over with lead, in order
that where these compressed sheets lap or come in contact there should be lead
interposed between the iron, the copper, or its alloy. I flush over one of the
surfaces of the sheet of copper or of its alloy the soldering metal, the sheet
being placed on an iron table heated in any convenient manner from below,
and then I place the sheet of iron or of steel on to the sheet of copper or of
its alloys, and press the sheets together by a strong plate of iron, and keep the
sheets closely pressed together, and allow them to cool whilst held pressed
together. In combining a sheet of lead or of zinc with a sheet of iron or of
steel, I proceed in the same manner, but I flush the soldering metal on to
the sheet iron or steel, and place the sheet of lead or of zinc on to the iron or
steel, and then subject the two sheets to pressure, and allow them to cool
whilst pressed together. When coating a sheet of iron or of steel with a sheet
of tin, I cause, the tin to be slightly alloyed, as is well understood, to harden it
and to increase its fusing point, and I combine the sheet tin with the sheet iron

page_text: or sheet steel, as above explained in respect to sheet lead and sheet zinc. The
solder used in each case should be such as will melt at a temperature below
the temperature at which the sheet of the alloy of copper, or the sheet of zinc,
or sheet of lead, or sheet of tin, or sheet of an alloy of either of these metals
which is to be used, will melt:
Having thus described the nature of my said Invention, and the manner
of performing the same, I would have it understood that what I claim is,
the coating of sheet iron and sheet steel by applying steel, copper, or alloy
of copper by interposed solder, as above described; 1 also claim the coating of
sheet iron and sheet steel by applying sheet zinc, shect lead, or sheet tin, or
alloys of such metals by interposed solder, as above described.
In witness whereof, I, the said Arthur Warner, have hereunto set my
hand and seal, the Fourth day of August, in the year of our Lord
One thousand eight hundred and fifty-five.
ARTHUR WARNER. (L.S.)