AN IMPROVED MODE OF USING STEAM FOR PRODUCING PERFECT COMBUSTION OF FUEL, AND CONSUMING THE SMOKE AND INFLAMMABLE GASES FROM THE SAME
Year: 1873

page_text: LETTERS PATENT to George Haseltine, of the "International Patent
Office," Southampton Buildings, London, Doctor of Laws, for
the Invention of "AN IMPROVED MODE OF USING STEAM FOR PRODUCING
PERFECT COMBUSTION OF FUEL, AND CONSUMING THE SMOKE AND INFLAMMABLE
GASES FROM THE SAME."-A communication from abroad by Benjamin
Franklin McCarty, Engineer, Pliny F. Olds, Engineer, and Franklin
H. Mason, Gentleman, all of Oleveland, Ohio, United States of
America.
Sealed the 12th April 1873, and dated the 22nd February 1873.
COMPLETE SPECIFICATION filed by the said George Haseltine at the
Office of the Commissioners of Patents, with his Petition and Decla-
ration, on the 22nd February 1878, pursuant to the 9th Section of
the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HASELTINE, of the "International Patent Office," Southampton Build-
ings, London, Doctor of Laws, send greeting.
WHEREAS I am in possession of an Invention for "AN IMPROVED MODE
OF USING STEAK FOR PRODUCING PERFECT COMBUSTION OF FUEL, AND CONSUMING
THE SMOKE AND INFLAMMABLE GASES FROM THE SAME," and have petitioned Her
Majesty to grant unto me, my executors, adminstrators, and assigns,
Her Royal Letters Patent for the same, and have made solemn

page_text: Declaration that it has been communicated to me from abroad by
Benjamin Franklin McCarty, Engineor, Pliny F. Olds, Engineer, and
Franklin H. Mason, Gentleman, all of Cleveland, Ohio, United States of
America.
NOW KNOW YE, that I, the said George Haseltine, do hereby declare
that the following Complete Specification, under my hand and seal, fully
describes and ascertains the nature of the said Invention, and in what
manner the same is to be performed in and by the following statement,
reference being had to the accompanying Drawing forming a part of
this Specification, and in which Figure 1 is a side elevation of a
steam boiler and furnace; Figure 2 is a front elevation of the same.
Like letters indicate the same parts in both Figures.
This Invention relates to the use of steam for producing the com-
bustion of coal, and consumption of the smoke and inflammable matter
climinated from the fuel. The application of steam for the purpose
above specified is effected by the aid of the following contrivances :—
A represents a steam boiler which is or may be of any of the ordinary
kinds in use; B is the brickwork; and O, the fire-place or furnace; D
is a pipe leading from the boiler into the said fire-place or furnace, its
termination in the furnace being above the surface of the bed of burning
coals, as shewn. Its exact location is not so much a matter of importance,
or the number of pipes that may open into the furnace, that being
determined by the size and peculiar shape and construction of the
furnace to which the steam is applied. In the Drawing two pipes are
shewn opening into the furnace, namely, the extreme end of the pipe D
on or near one side thereof, and a branch of the same on the opposite
side, as indicated by the dotted lines a in Figure 2.
In the consumption of coal in the ordinary furnace a large amount of
combustible matter is eliminated in the form of smoke and gases, and
the same escapes from the furnace unconsumed generally in the form of
a dense black smoke highly charged with the aforesaid combustible
gases. This escape of so much unconsumed matter is the result of a
deficiency of oxygen in the furnace. The ordinary draughts and
appliances resorted to for supplying the demand for oxygen are
insufficient, and the cold air used has a deadening effect upon the
burning fuel; hence results much of the waste of unconsumed material.
In order to meet this demand for oxygen, and to insure a complete
consumption of fuel and of all the combustible matter eliminated in the

page_text: the furnace, I conduct into the fire-place, directly over the bed of coal, a
jet or jets of steam taken from the boiler. The oxygen and hydrogen
developed by the use of steam comingle with the smoko and
inflamable gases, and produce a completo combustion of the same.
The smoke is wholly consumed in the furnace, hence there is no waste of
fuel nor is there any considerable amount of smoke issuing from the
stack or chimney.
The effect of the heated steam on the burning coal in no degree
deadens its life, but on the contrary intensifies the heat by the con-
sumption of the smoke and gases. The quantity or volume of steam to
be used for the aforesaid purpose will depend upon the character and
quantity of the coal, and the construction of the furnace. In some cases
the best results may be produced by admitting the steam in a jet finaly
diffused, in others it may be expanded or spread, and in other cases may
be more dense or voluminous to produce the best effect upon the coal
and smoke, and to improve the draught.
Having thus fully described the said Invention as communicated to
mo by my foreign correspondents, and the manner of performing the
same, I wish it understood that I claim,—
First. The mode herein described of producing the combustion of coal
and the consumption of smoke and inflammable gasos.
Second. The use of "live" steam in combination with coal in a
furnace or fire-place for the purpose specified.
In witness whereof, I, tho said Georgo Haseltine, have hereunto
set my hand and seal, this Twenty-second day of February, in
the year of our Lord One thousand eight hundred and seventy-
Witness,
JAMES EDWARDS,
8, Southampton Buildings,
London.
GEORGE HASELTINE. (L.S.)