IMPROVED APPARATUS TO BE APPLIED TO ENDWICKS BAD ENRUDING THE COMBUSTION OR CONSUMPTION OF SWORD
Year: 1874

page_text: LETTERS PATENT to George Smith, of Walworth, in the County of
Surrey, for the Invention of "IMPROVED APPARATUS TO BE APPLIED TO
ENDWICKS BAD ENRUDING THE COMBUSTION OR CONSUMPTION OF SWORD "
Scaled the 5th June 1874, and dated the 28th March 1874.
PROVISIONAL SPECIFICATION left by the said George Smith at the
Office of the Commissioners of Patents, with his Petition, on the
28th March 1874. .
I, GEORGE SMITH, of Walworth, in the County of Surrey, do hereby
declare the nature of the said Invention for "IMPROVED APPARATUS TO BE:
APPLIED TO FURNACES FOR ENSURING THE COMBUSTION OR CONSUMPTION OF SMOKE,”.
to be as follows:-
.
The object of this Invention is to intercept the smoke arising from
furnaces freshly charged with fuel, in order that the smoke may be con-
sumed and prevented from being discharged from the shaft in heavy,
volumes.
"

page_text: I employ a metal frame or case having in it a grate the bars of which
on the side nearest to the furnace present but a small surface to the fire,
but gradually increase the thickness toward the reverse side or side
nearest the chimney or shaft, thereby narrowing the opening between
the bars. The frame carrying the grating is mounted in vertical guides
and extends across the back end of the furnace, and any ordinary raising
and lowering apparatus is connected to the frame.
When the fire is lighted the apparatus is lowered to the position
between the chimney and the fire, thus narrowing the educt of the
smoke and retaining it within the fire chamber until consumed, the said
consumption being accelerated by the confined heat and rapid heating of
the intercepting grate, and when the fire is burned clear the grate may
be raised if desired.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Smith in the Great Seal Patent Office
on the 28th September 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
SMITп of Walworth, in the County of Surrey, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-eighth day of March, in the year
of our Lord One thousand eight hundred and seventy-four, in the thirty
seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said George Smith,. Her special license.
that I, the said George Smith, my executors, administrators, and
assigns, or such others as I, the said George Smith, my executors,
administrators, and assigns, should at any time agree with, and no
otliers, 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 "IMPROVED APPA-
RATUS TO BE. APPLIED TO FURNACES FOR ENSURING. THE COMBUSTION OR CONSUMPTION
OF SMOKE," upon the condition (amongst others) that I, the said George.
Smith, my executors or administrators, by an instrument in writing"
under my, or their, or one of their hands and scals, should particularly
་

page_text: -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 George Smith, do hereby declaro
the nature of my said Invention, and in what manner the same is to bo
performed, to be particularly described and ascertained in and by the
following statement, reference being had to the accompanying Sheet of
Drawings and to the figures and letters marked thereon, that is to
say :-
-
The object of this Invention is to intercept the smoke arising from
furnaces freshly charged with fuel, in order that the smoke may be con-
sumed and prevented from being discharged from the shaft or chimney
in heavy volumes.
I employ a metal frame or case having in it a grate the bars of which
on the side nearest to the furnace present but a small surface to the fire,
but gradually increase in thickness toward the reverse side or side
nearest the chimney or shaft, thereby narrowing the opening between
the bars. The frame carrying the grating is fitted with vertical guides
and extends across the back end of the furnace, and any ordinary raising
and lowering apparatus is connected to the grate.
When the fire is lighted the apparatus is lowered to the position
between the flue of the chimney and the fire, thus narrowing the educt
of the smoke and retaining it within the fire chamber until consumed,
the said consumption being accelerated by the confined heat and rapid
heating of the intercepting grate, and when the fire is burned clear the
grate may be raised if desired.
In the accompanying Sheet of Drawings Fig. 1 is an elevation of the
apparatus; Fig. 2, a section illustrating application; Fig. 3, cross
section on line X, X, of Fig. 1, and Fig. 4 shews a grate designed for a
furnace with an arched roof.
A is a metal frame or case; B, the grate, the bars C of which on the
side nearest the furnace present but a small surface D, see Fig. 3, to the
fire, but gradually increase in thickness toward the reverse side E, thus
narrowing the opening or space between the bars C.

page_text: f
Having thus described the nature and particulars of my said Inven-
tion, I claim the improved apparatus herein described and illustrated in
the Drawings, and the application thereof to furnaces for ensuring the
combustion or consumption of smoke, substantially as set forth..
In witness whereof, I, the said George Smith, have hereunto 5
set my hand and seal, this Fifth day of September, in the
year of our Lord One thousand eight hundred and seventy-
four: