A NEW METHOD OR PRINCIPLE OF PRODUCING CYLINDERS OF VARIOUS DISCRIP-TIONS
Year: 1817

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
HENRY OSBORN, of Bordesley, near Birmingham, in the County of
Warwick, Sword and Gun Barrel Maker, send greeting.
WHEREAS His most Excellent Majesty King George the Third, by
His Letters Patent under the Great Seal of Great Britain and Ireland,
bearing date at Westminster, the First day of March, in the fifty-
seventh year of His reign, did give and grant unto me, the said Henry
Osborn, my exors, admors, and assigns, His special licence, full power,
sole privilege and authority, that I, the said Henry Osborn, my exors,
admors, and assigns, during the term of years therein expressed, should
and lawfully might make, usc, exercise, and vend, within England,
Wales, and the Town of Berwick-upon-Tweed, my Invention of "A
NEW METHOD OR PRINCIPLE OF PRODUCING CYLINDERS OF VARIOUS DISCRIP-
TIONS;" in which Letters Patent there is contained a proviso, obliging
me, the said Henry Osborn, under my hand and seal, to cause a par-
ticular description of the nature of my said Invention, in what manner
the same is to be performed, to be inrolled in His Majesty's High

page_text: Court of Chancery within two calendar months next and immediately
after the date of the said recited Letters Patent, as in and by the
same, relation being thereto had, may fully and at large appear.
NOW KNOW YE, that I, the said Henry Osborn, in compliance
with and performance of the proviso contained in the said Letters
Patent, do hereby declare that my said Invention doth, by this instru-
ment in writing under my hand and seal, particularly describe and
ascertain the nature of my said Invention, and manner in which the
same is to be performed, as will by a description in writing, as also by
delineation of apparatus hereunto annexd, that will help to illustrate
or exemplify my said principle (that is to say):
I take a piece of flat iron or steel of any given length, breadth, or
thickness, and having turned it or formed it into a cylinder by any of
the usual or by any patent processes, and prepared it for welding, I
cause it to be placed in a furnace or open fire, and being brought to a
welding heat I cause a maundrell (B, B.) made of iron or steel, or a
mixture of iron and steel, of any given diameter, according to the
caliber required, (formed as described in the reference, and having
placed said maundrell in the cylinder (H, H,) and taking care that the
said maundrell does not come further through said cylinder than is
required to cause the desired pressure from the rolls (A, A,) the shoulder
or stop guard (C. C) on the maundrell resting against the bar or fence
(F, F,) in front of the rolls, the prepared cylinder is suffered to enter
the aperture in the rolls intended to perform the opperation of welding,
and it is instantly carried through by means of the rotative motion of
the rolls; and as the maundrell remains stationary by means of the
shoulder (C, C,) resting against the fence (F, F,) the whole of the
interior of the cylinder is formed agreeable to the diameter of said
maundrell, and the exterior is formed agreeble to the impression
turned or cut in said rolls. Thus if the cylinder is required to be of
one given diameter from end to end (be the length what it may) the
grove in the rolls is made accordingly. If, on the contrary, the
cylinder, such as gun and pistol barrells, is required to be taper, then
the diameter of the rolls must be regulated by the length of said barrel
or cylinder, in order that when properly placed in the intended grove

page_text: formed in said rolls the compressure is such as produces the desired
form by being passed through the different apertures or groves as may
be found necessary, as I do not confine myself to any given number of
groves in my rolls, but take from one to four, or niore, as may be found
necessary, and pass the taper or other cylinder through as many of
them as may be required to produce the exact form wanted. Thus far
I have only spoke of welding cylinders made of plain iron, but iron called
strings, being twisted (as for gun barrels, &c.), and brought to a welding
heat, is treated the very same as the other. It is indispensible that this
should be understood, in order that there may not be any ambiguity as
to the truc intent and meaning of what description of iron made into
cylinders is to be operated upon; and as my Patent is for a new method
or principle by which cylinders of all descriptions made of iron and steel
may be welded to that particular point, I direct the attention of my
readers.
In witness whereof, I, the said Henry Osborn, have hereunto set
my hand and seal, this Twenty-first day of April, in the year of
our Lord One thousand oight hundred and savontoon
HENRY OSBORN. (..s.)
AND BE IT REMEMBERED, that ou the Twenty-first day of
April, in the year of our Lord 1817, the aforesaid Henry Osborn came
before our said Lord the King, in His Chancery, and acknowledged
the Specification aforesaid, and all and every thing therein contained
and specified, in form above written. And also the Specification afore-
said was stampt according to the tenor of the Statutes made for that
purposc.
Inrolled the Twenty-second day of April, in the year of our Lord
One thousand eight hundred and seventeen.