IMPROVEMENTS IN THE MANU- FACTURE OF WELDED IRON TUBES
Year: 1852

page_text: LETTERS PATENT to James Roose, of Birmingham, in the County
of Warwick, for the Invention of "IMPROVEMENTS IN THE MANU-
FACTURE OF WELDED IRON TUBES."
Scaled the 5th September 1853, and dated the 22nd November 1852.
PROVISIONAL SPECIFICATION left by the said James Roose at
the Office of the Commissioners of Patents, with his Petition,
on the 22nd November 1852.
I, JAMES ROOSE, of Birmingham, in the County of Warwick, do
5 hereby declare the nature of the said Invention for "IMPROVEMENTS
IN THE MANUFACTURE OF WELDED IRON TUBES " to be as follows:-
This Invention consists of employing a bell mouthed die, with or
without a mandril, so as simultaneously to turn up and weld a skelp
of iron, such die being made plain, or grooved with several grooves,
Oor with one or more grooves, according as it is desired to produce
plain tubes, corrugated tubes, or tubes with one or more webs
or fins.

page_text: SPECIFICATION in pursuance of the conditions of the Letters
Patent, filed by the said James Roose in the Great Seal Patent
Office on the 21st May 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
JAMES ROOSE, of Birmingham, in the County of Warwick, send
greeeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty second day of November,
in the year of our Lord One thousand eight hundred and fifty two,
in the sixteenth year of Her reign, did for Herself, Her heirs and
successors, give and grant unto me, the said James Roose, Her
special licence that I, the said James Roose, my executors,
administrators, and assigns, or such others as I, the said James
Roose, 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
night 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 WELDED IRON-
TUBES," upon the condition (amongst others) that I, the said James
Roose, by an instrument in writing under my hand and seal, 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 James Roose, 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 consists of employing a bell mouthed die, with or
without a mandril, so as simultaneously to turn up and weld a
skelp of iron, such die being made plain, or grooved with several
grooves, or with one or more grooves, according as it is desired to

page_text: produce plain tubes, corrugated tubes, with one or more webs.or
fins. And in order that the Invention may be more fully under-
stood, I will describe the means pursued by me.
I take a strip of iron of the required length, breadth, and thick-
ness, and proceed to place the one end into a muffle or small furnace
until the end has attained a red heat, then the strip is placed on a
swage grooved anvil, so that by means of hammers the workmen
may bend or skelp the strip at the one end, and make it sufficiently
small to enter the small end of the bell die or mouthpiece, as
marked in the Drawings with the Letter (A). The strip is then
placed into a long furnace until it comes up to a good welding heat,
or near to a state of fusion; it is then drawn out of the furnace, the
end placed through the bell, which is fixed in a stop on the end of a
draw bench next to the mouth of the furnace,
a
pair of plyers then
takes hold of the end which protrudes through the bell; the chain
on the drawbench is then set in motion. A mandril of the same
form as shewn at Letter (B), can if required be made use of; it is
placed in front of the bell at the large end, which passes into the
bell, and gives internal support to the tube, while the tube is being
drawn through the bell die or mouthpiece; it will have the effect of
welding or amalgamating the seam of the skelp, and will become a
welded iron tube. If the tube is intended for a grooved, fluted, or
other description of tube, it is passed back into the furnace, and
another bell of the required form or shape placed in the same stop as
the former bell; the intended welded tube D, is then drawn through
the bell without a mandril, which will have the effect of making
the tube into a corrugated form or other shape. Other bells may be
made use of, such for instance as to produce a tube with a web or
webs, or fins, or other forms, but I do not confine myself to the
particular form of bell die, or mouthpiece, or tube to be pro-
duced.
What I claim to be of my Invention is the converting of a flat
strip at one heat and one process, into a welded tube (after the end
is turned up) by a bell mouthed die or mouthpiece, with or without a
mandril, and forming it into the shape of a corrugated, fluted, or

page_text: al tubes, by wing the same throug
ΟΓ the
form desired.
In witness whereof, I, the said James Roose, have hereunto set
my hand and seal, this Twentieth day of May, in the year of
our Lord One thousand eight hundred and fifty-three.
Witness,
H. W. CARPMAEL.
JAMES ROOSE. (L.S.)