IMPROVEMENTS IN THE MANUFACTURE OF FLEXIBLE METAL PIPING AND TUBING
Year: 1873

page_text: LETTERS PATENT to James George Ingram, of Wilmer Gardens,
Hoxton, in the County of Middlesex, India-rubber Manufacturer,
for the Invention of "IMPROVEMENTS IN THE MANUFACTURE OF FLEXIBLE
METAL PIPING AND TUBING."
Sealed the 5th May 1874, and dated the 11th November 1873.
PROVISIONAL SPECIFICATION left by the said James George Ingram
at the Office of the Commissioners of Patents, with his Petition,
on the 11th November 1873.
I, JAMES GEORGE INGRAM, of Wilmer Gardens, Hoxton, in the
County of Middlesex, India-rubber Manufacturer, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN THE MANUFACTURE OF
FLEXIBLE METAL PIPING AND TUBING," to be as follows:-
-
Flexibility is given to a metal pipe or tube in the following manner
A sheet of lead or other metal to form the pipe or tube is rolled around
a spiral coil of steel or other metal wire and bound tightly with twine or

page_text: other ligature so as to press the lead or other metal between the coils of
the wire even with the inner surface of the wire. The pipe or tube
thereby acquires the flexibility of the coil and increased power of
resisting pressure.
SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said James George Ingram in the Great Seal Patent
Office on the 11th May 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
GEORGE INGRAM, of Wilmer Gardens, Hoxton, in the County of Middle-
sex, India-rubber Manufacturer, send greeting,
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eleventh day of November, in the
year of our Lord One thousand eight hundred and seventy-three, in the
thirty-seventh year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said James George Ingram, Her
special licence, that I, the said James George Ingram, my executors,
administrators, and assigns, or such others as I, the said James
George Ingram, 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 Inven-
tion for "IMPROVEMENTS IN THE MANUFACTURE OF FLEXIBLE METAL PIPING AND
TUBING," upon the condition (amongst others) that I, the said James
George Ingram, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should
particularly describo 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 James George Ingram, do hereby
declare the nature of my said Invention, and in what manner the same.

page_text: is to be performed, to be particularly described and ascertained in
and by the following statement :-
-
Flexibility is given to a metal pipe or tube in the following manner :-
A sheet of lead or other metal to form the pipe or tube is rolled around
a spiral coil of steel or other metal wire and bound tightly with twine or
other ligature so as to press the lead or other metal between the coils of
the wire even with the inner surface of the wire. The pipe or tube
thereby acquires the flexibility of the coil and increased power of
resisting pressure.
The novelty is in the adaptation of the above-
mentioned coil or ligature to metal for the construction of a flexible
pipe.
JAMES GEORGE INGRAM. (L.S.)
Signed, sealed, and delivered
by the above named James
George Ingram in the
presence of
FREDERICK JACOB,
Solicitor,
48, Bedford Row,
W.C.