IMPROVEMENTS IN THE MANUFACTURE OF PIPES, TUBES, AND HOLLOW CYLINDERS
Year: 1859

page_text: LETTERS PATENT to John James Speed, the younger, of the City of
Detroit, in the United States of America, Telegraph Engineer, for the
Invention of "IMPROVEMENTS IN THE MANUFACTURE OF PIPES, TUBES, AND
HOLLOW CYLINDERS."
Sealed the 7th February 1860, and dated the 10th August 1859.
PROVISIONAL SPECIFICATION left by the said John James Speed at
the Office of the Commissioners of Patents, with his Petition, on the
10th August 1859.
I, JOHN JAMES SPEED, the younger, of the City of Detroit, in the United
States of America, Telegraph Engineer, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN THE MANUFACTURE OF PIPES, TUBES, AND
HOLLOW CYLINDERS,". to be as follows:→
My Invention consists in manufacturing pipes, tubes, and hollow cylinders
of a combination of sheet metal and wire or strips of metal, and a soldering
flux of zinc or other suitable metal in manner. following:-I first form a tube
by bending round sheet metal, and overlapping and uniting the edges by rivets
or otherwise. This sheet metal. may be galvanized on one or both sides, or
may be coated with any desired metal or metallic alloy; I then wind round
the sheet metal tube, spirally, wires or strips, or bands of metal, and unite the
whole by placing the partially finished pipe or cylinder in a bath of molten
metal, and employing a flux to cause adhesion; I make the pipe revolve in
the bath until a sufficient coating has been deposited on or become affixed to it.

page_text: I withdraw and repeat the coating operation as often as may be necessary to
secure the thickness of coating desired. For some purposes I wind on more
than one spiral layer; 'and, according to the purposes for which the finished
article is intended, I use various thicknesses of sheet metal and wire of different
gauges. For water pipes I coat the interior with zinc, or use that metal as
the core, and for gas I coat the interior with lead or use sheet lead for
the core.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John James Speed in the Great Seal Patent Office on
the 10th February 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
JAMES SPEED, the younger, of the City of Detroit, in the United States of
America, Telegraph Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Tenth day of August, in the year of our Lord One
thousand eight hundred and fifty-nine, in the twenty-third year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said John James Speed, Her special licence that I, the said John James
Speed, my executors, administrators, and assigns, or such others as I, the said
John James Speed, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after 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 "IMPROVE-
MENTS IN THE MANUFACTURE OF PIPES, TUBES, AND HOLLOW CYLINDERS," upon
the condition (amongst others) that I, the said John James Speed,
my executors or administrators, by an instrument in writing under my,
or their, or one of their hands and seals, should particularly 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 John James Speed, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the follow-
ing statement thereof, that is to say:→

page_text: My Invention consists in manufacturing pipes, tubes, and hollow cylinders
of a combination of sheet metal, and wire or strips of metal, and a soldering
flux of zinc or other suitable metal in manner following:-I first form a tube
by bending round sheet metal, and overlapping and uniting the edges by rivets
or otherwise; this sheet metal may be galvanized on one or both sides, or
may be coated with any desired metal or metallic alloy. I then wind round
the sheet metal tube, spirally, wire or strips, or bands of metal, and unite the
whole by placing the partially finished pipe or cylinder in a bath of molten
metal and employing a flux to cause adhesion. I make the pipe revolve in
the bath until a sufficient coating has been desposited on, or become affixed to
it. I withdraw and repeat the coating operation as often as may be necessary
to secure the thickness of coating desired. For some purposes I wind on
more than one spiral layer, and according to the purposes for which the finished
article is intended I use various thicknesses of sheet metal and wire of different
gauges. For water pipes I coat the interior with zinc, or use that metal as
the core, and for gas I coat the interior with lead or use sheet lead for
the core.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim the improvements
in the manufacture of pipes, tubes, and hollow cylinders herein-before
described.
In witness whereof, I, the said John James Speed, have hereunto set my
hand and seal, this Twenty-sixth day of January, One thousand eight
hundred and sixty.
J. J. SPEED, JR. (L.S.)