IMPROVEMENTS IN FUEL FEEDING AND SMOKE CONSUMING APPARATUS FOR FURNACES
Year: 1869

page_text: LETTERS PATENT to William Arena Martin and Edward Wylam,
both of No. 80, Fleet Street, in the City of London, for the
Invention of "IMPROVEMENTS IN FUEL FEEDING AND SMOKE CONSUMING
APPARATUS FOR FURNACES."
Scaled the 22nd April 1870, and dated the 27th October 1869..
PROVISIONAL SPECIFICATION left by the said William Arena Martin
and Edward Wylam at the Office of the Commissioners of Patents,
with their Petition, on the 27th October 1869.
We, WILLIAM ARENA MARTIN and EDWARD WYLAM, both of No. 80,
Fleet Street, in the City, of London, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN FUEL FEEDING AND SMOKE CONSUMING
APPARATUS FOR FURNACES," to be as follows:-
This Invention has for its object the feeding of the fuel to furnaces
in such manner as to ensure the consuming of the smoke arising from
the combustion of the fuel. This is effected by providing the aperture
through which the fuel is fed with a frame fitting therein or thereto.
The bottom part of this frame consists of a bed plate, while the two

page_text: sides, which project externally form two angular flanges. The largest
or broadest portion of these flanges is at the top, and they diminish as
they approach the bed plate. A plate fixed upon the edges of these
flanges, and extending from one to the other, forms with the flanges a
hopper for the reception of the fuel. Upon the bed plate, which by
preference is fixed at an angle so as to dip downwards towards the
interior of furnace, is placed a sliding piece, which is herein-after called
a rammer." This rammer has beneath, at each side, a rack, and into
these racks are geard pinions keyed on a shaft, the bearings of which
shaft arc on the under side of the bed plate. The rammer forms a
moveable bottom to the hopper and can be moved inwards or outwards
by means of the shaft, rack, and pinions; the side flanges of the frame
being so formed or placed as to serve as guides. The fuel having beeu
placed in the hopper, by giving a to-and-fro motion to the rammer, it
will be fed into the furnace, and the apparatus is so placed that the
fuel enters above the fire-bars.
By the action of the rammer the fresh fuel will be pushed or
impelled forward, a fresh charge at each stroke, right into the mass of
incandescent fuel, and the smoke from the fresh fuel will therefore be
entirely consumed.
Where there is very great heat, such as in puddling iron, the first
part of the rammer is made with a moveable nose-piece so that should
it be destroyed by the action of the fire it can be readily replaced by
another.
The exact form and size of the apparatus may be varied to suit
existing furnaces, and two or more may be used for wide furnaces, while
for small furnaces a simple lever may be used instead of the racks and
pinions to give motion to the rammer. The apparatus may be arranged
to work either by hand or steam power, and may be made self-acting.
This apparatus will be found particularly applicable for puddling and
reverberatory furnaces used in the manufacture of metals and chemical
products.
It is proposed in cases where it may be found desireable to provide
the apparatus with a vertical slide so as to cut off the communication
between the hopper and the interior of the furnace.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Arena Martin and Edward Wylam in
the Great Scal Patent Office on the 27th April 1870.
TO ALL TO. WHOM THESE PRESENTS SHALL COME, wc, WILLIAM
ARENA MARTIN and EDWARD WYLAM, both of No. 80, Fleet Street, in
the City of London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-seventh day of October, in
the year of our Lord One thousand eight hundred and sixty-nine, in
the thirty-third year of Her reign did, for Herself, Her heirs and
successors, give and grant unto us, the said William Arena Martin and
Edward Wylam, Her special licence that we, the said William Arena
Martin and Edward Wylam, our executors, administrators, and assigns,
or such others as we, the said William Arena Martin and Edward
Wylam, our 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 FUEL FEEDING AND SMOKE CONSUMING APPARATUS FOR
FURNACES,' upon the condition (amongst others) that we, the said
William Arena Martin and Edward Wylam, our executors or adminis
trators, by an instrument in writing under our, or their, or one of
their hands and scals, 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 we, the said William Arena Martin and Edward
Wylam, do hereby declare the nature of our said Invention, and in
what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
This Invention has for its object the feeding of the fuel to furnaces
in such manner as to ensure the consuming of the smoke arising from
the combustion of the fucl. This is effected by providing the aperture
through which the fuel is fed with a frame fitting therein or thereto.
The bottom part of this frame consists of a bed plate, while the two
sides which project externally form two angular flanges. The largest or

page_text: broadest portion of these flanges is at the top, and they diminish as they
approach the bed plate. A plate fixed upon the edges of these flanges
and extending from one to the other forms with the flanges a hopper
for the reception of the fuel. Üpon the bed plate, which by preference
is fixed at an angle so as to dip downwards towards the interior of
furnace, is placed a sliding piece, which is herein-after called a
"rammer." This rammer has beneath, at each side, a rack, and into
these racks are geared pinions keyed on a shaft, the bearings of which
shaft are on the under side of the bed plate. The rammer forms a
imoveable bottom to the hopper, and can be moved inwards or outwards
by means of the shaft, rack, and pinions; the side flanges of the frame
being so formed or placed as to serve as guides.
In order that the nature of my Invention, and the manner in which
the same is to be performed may be clearly described and ascertained,
this Specification is accompanied by a Sheet of Drawings having figures
and letters of reference marked thereupon, the like letter being used to
denote a similar or corresponding part in each Figure.
The Drawings represent the application of my Invention to a
puddling furnace, Figure 1 being a front view, and Figure 2, a side view
of the same, and it will be seen by reference that the frame herein-before
mentioned as fitting in or to the aperture through which the fuel is fed
is marked a; the bed plate or bottom part of the frame is marked b;
and the two sides, which form (with the parts a and b) the hopper for
the reception of the fuel are marked c, c. The sliding piece or rammer
herein-before referred to, is marked d, and its racks e, c. The pinions,
which gear into the racks, are denoted by f, f. g is the shaft upon
which the pinions,f, are keyed. The inward or outward motion can
be given to the rammer by means of the lever handle i; and in furnaces
where there is great heat we fit upon the shaft a balance weight k so
adjusted that after each feeding or ramming operation the rammer will
be withdrawn from contact with the fire.
The fuel having first been placed in the hopper, by giving a to-and-fro
motion to the rammer d, the fuel will be fed into the furnace, and the
apparatus is so placed that the fuel enters above the fire-bars.
By the action of the rammer the fresh fuel will be pushed or
impelled forward, a fresh charge at each stroke, right into the mass of
incandescent fuel, and the smoke from the fresh fuel will therefore be
entirely consumed.

page_text: Where there is any great heat, such as in puddling iron, the first part
of the rammer is made with a moveable nose piece, as shewn at 1, Figure
2, so that should it be destroyed by the action of the fire it can be
readily replaced by another.
The exact form and size of the apparatus may be varied to suit
existing furnaces, and two or more may be used for wide furnaces, while
for small furnaces a simple lever may be used instead of racks and
pinions to give motion to the rammer. The apparatus may be arranged
to work either by hand or steam power, and may be made self-acting.
This apparatus will be found particularly applicable for puddling and
reverberatory furnaces used in the manufacture of metals and chemical
products.
It is proposed in cases where it may be found desirable to provide the
apparatus with a vertical slide so as to cut off the communication
between the hopper and the interior of the furnace. This arrangement is
shewn in the Drawings, the slide being marked m; and a balance weight n
is employed to retain the slide in any position that may be desired.
Having now particularly described the nature of our said Invention,
and the manner in which the same is to be performed, we wish it to
be clearly understood that what we claim as our Invention is, the mode
of feeding the fuel to furnaces and thereby consuming the smoke, as
in this Specification described, and in the accompanying Drawings
illustrated; and we claim more particularly the use of the rammer in
connection with the hopper, as and for the purposes described.
In witness whereof, we, the said William Arena Martin and
Edward Wylam, have hereunto set our hands and seals, this
Twenty-sixth day of April, in the year of our Lord One thousand
eight hundred and seventy.
Witness to the signing hereof
by the said William Arena
Martin and Edward Wylam,
WILLIAM ALDER,
25, Robert St., Chelsea.
W. A. MARTIN. (L.S.)
ED. WYLAM.
(L.S.)