IMPROVEMENTS IN THE ARRANGEMENTS FOR GENERATING AND APPLYING HEAT IN ROTARY PUDDLING OTHER FURNACES
Year: 1873

page_text: LETTERS PATENT to John Martin Stanley, of Sheffield, in the County
of York, Engineer, for the Invention of "IMPROVEMENTS IN THE
ARRANGEMENTS FOR GENERATING AND APPLYING HEAT IN ROTARY AND
Sealed the 15th August 1873, and dated the 19th February 1873.
PROVISIONAL SPECIFICATION left by the said John Martin Stanley
at the Office of the Commissioners of Patents, with his Petition,
on the 19th February 1873.
I, JOHN MARTIN STANLEY, of Sheffield, in the County of York,
Engineer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE ARRANGEMENTS FOR GENERATING AND APPLYING HEAT
IN ROTARY AND CYLINDRICAL PUDDLING AND OTHER FURNACES," to be as
follows:
-
These improvements consist in the form of a furnace for generating
and conveying heat into the vessel or cylinder of a rotary or cylindrical
puddling or other furnace, and in returning the waste gases out of the
said vessel or cylinder through the same end or neck as the one through
which the heat is admitted.

page_text: The objects of these improvements are to economise fuel, to reduce
the cost of construction of the furnace, and to lessen the amount and
severity of the labour required in placing the charges into and in
withdrawing them from the said vessel or cylinder.
The fire-place of the furnace, in which the heat is generated, is
constructed of brickwork, as described in the Specification of a Patent
granted to me, numbered 775, and dated March the 6th, 1868.
The blast that I prefer to use for the combustion of the fuel is
obtained by means of a jet or jets of steam, by preference superheated
steam, injected into a pipe or pipes inducing and propelling a current
or currents of air, which together are conveyed through channels formed
in the brickwork into the fire. The heat generated in the fire-place is
forced through a passage formed in the neck of the said vessel or
cylinder on to the materials to be heated or puddled. In the same
neck or end of the said vessel or cylinder another passage or channel
is formed for the egress or return of the waste gases. These channels
are separated by a partition of brickwork, and may be either vertical or
horizontal.
For the more complete combustion of the smoke and gases evolved
from the burning fuel atmospheric air may be forced through perforations 1
provided in the neck of the passage or channel, through which the heat
is conveyed into the said vessel or cylinder.
The fuel may be supplied through doors provided at the ends or
sides of the fire-place; or it may be supplied through a hopper placed
over the fire-place; or pulverised or granulated fuel may be induced
and propelled into the fire-place by means of a jet or jets of steam.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Martin Stanley in the Great Seal Patent
Office on the 19th August 1873.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Nineteenth day of February, in the year of
our Lord One thousand eight hundred and seventy-three, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said John Martin Stanley, Her special
licence that I, the said John Martin Stanley, my executors, admini-
strators, and assigns, or such others as I, the said John Martin
Stanley, 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 Invention for
"IMPROVEMENTS IN THE ÅRRANGEMENTS FOR GENERATING AND APPLYING HEAT IN
ROTARY AND CYLINDRICAL PUDDLING AND OTHER FURNACES," upon the condition
(amongst others) that I, the said John Martin Stanley, 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 Martin Stanley, 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 following statement:-
:-
These improvements consist in the form of furnace used for generating
and conveying heat into the vessels or cylinders of rotary or cylindrical
puddling or other furnaces, and in returning the waste gases from the
said vessels or cylinders through the same end or neck as the one through
which the heat is admitted.
The objects of these improvements are to economize fuel, to reduce
the cost of constructing such furnaces, and to lessen the amount and
severity of the labour hitherto required in placing the "charges" into
and in withdrawing them from the said vessels or cylinders.
In order that my said improvements may be more clearly and more
fully understood, and be more readily carried out in practice, I now
proceed to explain the same with the aid of the accompanying Drawing,

page_text: which forms part of this Specification, reference being made thereto by
the figures and letters marked thereon, which reference applies to each
figure of the said Drawing where the same index figures and letters
appear.
The fire-place of the furnace in which the heat is generated is t
constructed of brickwork, as described in the Specification of a Patent
granted to me, numbered 775, and dated March the Sixth, 1868.
Figure 1 is a horizontal plan of my improved arrangements on the
line A, B, Figure 2; Figure 2 is a longitudinal vertical section thereof
on the line C, D, Figure 1; Figure 3 is a transverse section of the same 1
on the line E, F, Figures 1 and 2; Figure 4 is a front elevation of the
same.
The blast which I prefer to use for the combustion of the fuel is
obtained by means of a jet or jets of steam, by preference superheated
steam, injected into a pipe or pipes through the nozzles c, inducing 1
and propelling a current or currents of air, which together are conveyed
by the said pipes 6 into and through the channels d formed in the
brickwork into the fire or fire-place a. When the furnace is sufficiently
hot the materials to be heated or puddled are placed in the vessel or
2
cylinder h, which is then caused to rotate.
The heat generated in the fire-place a is forced through the passage e
formed in the neck of the said vessel or cylinder 7 on to and about the
materials to be heated or puddled. In the same neck or end of the
said vessel or cylinder another passage or channel i is formed for the
egress or return and escape of the waste gases by the chimney k. These 2
channels e and i are separated by a partition of brickwork j, which
partition may be either horizontal, as shewn in the Drawing, or vertical;
in the latter case the partition would be formed the whole width of the
neck of the vessel.
For the more complete combustion of the smoke and gases evolved 3
from the burning fuel atmospheric air may be admitted or forced
through perforations provided in the neck of the passage or channel,

page_text: the fire-place; or pulverized or granulated fuel may be induced and
propelled into the fire-place by means of a jet or jets of steam.
Having thus fully explained the nature of my said Invention, and the
manner in which the same is to be performed, without binding myself
to the precise forms and dimensions now illustrated and explained, I
claim as my Invention, and desire to secure by the aforesaid in part
recited Letters Patent, the method of forcing heat or heated air, gases,
or vapours into a vessel or cylinder, and returning the waste gases and
other products of combustion through one and the same end or neck of
such vessel or cylinder, substantially as and for the purposes herein
described and shewn upon the Drawing.
In witness whereof, I, the said John Martin Stanley, have here-
unto set my hand and seal, this Sixteenth day of August, in
the year of our Lord One thousand eight hundred and seventy-
three.