CERTAIN IMPROVE- MENTS IN MAKING IRON
Year: 1825

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, PHILIP
TAYLOR, of the City Road, in the County of Middlesex, Engineer, send
greeting.
WHEREAS His present most Excellent Majesty King George the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Eighteenth day of August, in the sixth year of His reign,
did, for Himself, His heirs and successors, give and grant unto me, the said
Philip Taylor, His especial licence, that I, the said Philip Taylor, my exors,
admors, and assigns, or such others as I, the said Philip Taylor, my exors,
admors, or assigns, should at any time agree with, and no others, from time
to time and at all times 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 "CERTAIN IMPROVE-
MENTS IN MAKING IRON," in which said Letters Patent is contained a proviso
obliging me, the said Philip Taylor, by an instrument in writing under
my hand and seal, particularly to describe and ascertain the nature of
my said Invention, and in what manner the same is to be performed, and
to cause the same to be inrolled in His Majesty's High Court of Chancery
within six calendar months next and immediately after the date of the said
recited Letters Patent, as in and by the same, reference being thereunto had,
will more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Philip Taylor, do hereby declare the nature of my said Invention to consist
in injecting into any ordinary blast furnace where iron is undergoing the
operation of smelting, a quantity of carburetted bydrogen gas, either in its
punified state or combined with substances from which the heat will cause it
to evolve when those substances are injected into the furnace, and in further
compliance with the said proviso, I, the said Philip Taylor, do hereby describe
the manner in which my said Invention is to be performed, by the following
description thereof, reference being had to the Drawing annexed, and to the
letters marked thereon, that is to say:-
DESCRIPTION OF THE DRAWING.
The Drawing represents an ordinary blast furnace in section, with a plan
of the same, and an elevation of an ordinary gas apparatus, together with my
mode of injecting gas into the said furnace, for it should here be observed,
that I greatly prefer the injection of gas in its purified state, and have there-
fore represented the means of performing this operation. In the Drawing
now under description A is an ordinary gas generator. is the reservoir to
collet the tar. i is the purifying vessel. k, k, k, is the induction pipe or
pipes leading into the gasometer. B is the gasometer 9, 9, 9, is the educ-
tion pipe or pipes leading out of the gasometer. C is an ordinary blast fur-
nace for smelting iron when stone coal or coke, or other suitable fuel, is used.
a is the furnace hearth. 6 is the dam, &c. The aperture for the admission
of one of the ordinary blast pipes_m is a similar aperture to c, and it is at
this aperture that I introduce the pipe for injecting the carburetted hydrogen
gas d, d, is the said last-named pipe, and which I call the gas injection, and
is about 3/4ths of an inch in diameter at its inner end, but the size of this
pipe must be varied according to the size of the furnace and the nature of
the material employed for making iron. e is an ordinary blowing apparatus
or air pump, and may be worked by any suitable power applied to the con-
necting rod f; and it should here be stated, that the force applied by this
apparatus should always exceed the force per square inch applied for giving
the blast of common air in the same furnace, in about the following proportion,
that is to say, if the blast of common air be forced into the furnace with a
pressure equal to one pound and a half on the square inch, the blast of car-
buretted hydrogen gas should be forced into the furnace with a pressure
equal to two pounds on the square inch, and so in like proportion. D is a
plan of a furnace, such as aforesaid. 9, 9, are two ordinary blast pipes, and
ds the gas injector
And I will here remark, that though the carburetted

page_text: hydrogen gas may be introduced into the furnace at various elevations and
in different directions, yet I consider the best point for introducing the same
to be, that which will cause the gas to meet the fluid iron as it flows down
into the hearth.
Now, whereas it has been ascertained that those substances in ordinary
use for smelting iron which contain the most carburetted hydrogen gas are
the best adapted in that respect for the purpose of making what is commonly
called foundry or melting iron; but whereas stone coal, and other substances
which contain little or perhaps no portion of such gas, have other advantages
which it would be desirable for the manufacturer to avail himself of, and the
object of my Invention is, to enable him to do so, by providing the furnace
with sufficient of the said carburetted hydrogen gas, independently of the fuel
used for smelting; this may be done, either by injecting the said gas in
manner herein-before explained, or by injecting in like manner oil or other
fluids convertible by the heat of the furnace into carburetted hydrogen gas,
in which case a forcing pump should be used instead of the blowing apparatus
shewn in the Drawing annexed, or by causing any pulverized substances
which would, by means of the heat of the furnace, evolve a sufficient quantity
of the said carburetted hydrogen gas, to be injected into the furnace by finding
their way by means of a hopper or other similar contrivance into one or more
of the ordinary blast pipes, and so being cared along with the blast, but I
decidedly prefer the mode represented in the Diawing, which would be that
applied to the injection of purified carburetted hydrogen gas.
And I do hereby declare my said improvements in making iron to be, and
that what I claim as my Invention is, the injecting of carburetted bydrogen
gas, either in a pure or combined state, into blast furnaces whero iron is
undergoing the operation of smelting, for the purpose of carburetting the said
iron. And such my said Invention being, to the best of my knowledge and
belief, entirely new, and never before used within that part of His said Majesty's
United Kingdom of Great Britain and Ireland called England, His Dominion
of Wales, or Town of Berwick-upon-Tweed, I do hereby declare this to be my
Specification of the same, and that I do verily believe this my said Specifi-
cation doth comply in all respects, fully and without reserve or disguise, with
the proviso in the said herein-before in part recited Letters Patent contained,
wherefore I do hereby claim to maintain exclusive right and privilege to my
said Invention.
In witness whereof, I, the said Philip Taylor, have hereunto set my hand
and seal, this Seventh day of February, in the year of our Loid One
thousand eight hundred and twenty-six.
PHILIP (LS.) TAYIOD

page_text: AND BE IT REMEMBERED, that on the Seventh day of February, in
the year of our Lord 1826, the aforesaid Philip Taylor came before our said
Lord the King in His Chancery, and acknowledged the Specification afore-
said, and all and every thing therein contained and specified, in form above
written. And also the Specification aforesaid was 'stamped according to the
tenor of the Statute made for that purpose.
Inrolled, the Seventeenth day of February, in the year of our Lord One
thousand eight hundred and twenty-six.