Improvements in Apparatus for Consuming Smoke from Boiler and other Furnaces, such apparatus being also applicable for the Ventilation of Drains, Sewers, Retorts, Rooms, or other places.
Year: 1891

page_text: Date of Application, 4th July, 1891
Complete Specification Left, 4th Apr., 1892-Accepted, 7th May, 1892
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Consuming Smoke from Boiler and
other Furnaces, such apparatus being also applicable for the
Ventilation of Drains, Sewers, Retorts, Rooms, or other places.
We, BENJAMIN FOSTER, WILLIAM FOSTER and BENJAMIN SEDGWICK
FOSTER, all of Skinner Lane, Leeds in the County of York, Manufacturing
Chemists, do hereby declare the nature of this invention to be as follows:-
The object of our invention is to provide apparatus for injecting atmospheric air
or other gases into boiler or other furnaces, and to the back thereof, for the
purpose of igniting and thus utilizing the inflamable gases or products of
combustion, preventing thereby the emission of dense smoke from the chimneys
used in connection with such furnaces, such apparatus being also applicable for the
ventilation of drains, sewers, retorts, rooms, or other places, from which noxious
fumes or gases require to be withdrawn.
For the above purpose we employ an injector with a very small nozzle, and
connect up to this a pipe which may be either open to the outer air, or the open
end thereof may
be connected to drains, sewers, retorts, rooms, or other places
from which noxious fumes or gases require to be withdrawn.
On the injector being put in motion air or gases are drawn along the pipe from
the drains, sewers, retorts, rooms, or other places and passed onto the fire, thus
igniting and utilizing the products of combustion from the boiler or other furnace,
at the same time not only is the ventilation of sewers, drains, or retorts within its
scope secured and no accumulation of gas allowed to take place, thereby rendering
such sewers, drains or retorts innoxious, but also when the apparatus is applied to
rooms or other places, it forms an excellent extractor of vitiated atmosphere.
Dated this 4th day of July 1891.
J. W. HARDING,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Consuming Smoke from Boiler and
other Furnaces, such Apparatus being also applicable for the
Ventilation of Drains, Sewers, Retorts, Rooms, or other places.
We, BENJAMIN FOSTER, WILLIAM FOSTER, and BENJAMIN SEDGWICK
FOSTER, all of Skinner Lane, Leeds, in the County of York, Manufacturing
Chemists, do hereby declare the nature of this invention, and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement :-
The object of our invention is to provide apparatus for injecting air or other
gases into boiler or other furnaces for the purpose of igniting and thus utilizing
the products of combustion preventing thereby the emission of dense smoke
from the chimney used in connection with such furnaces. Our invention is also
applicable for the ventilation of drains, sewers, retorts, rooms or other places from
which noxious fumes or gases are required to be withdrawn.
In order that our invention may be clearly understood, reference is given to the
accompanying drawings, in which Fig. 1 is a partial end elevation of a boiler
fitted with our improved apparatus. Fig. 2 is a longitudinal section of same, and
Fig. 3 is a sectional plan. Fig. 4 is a longitudinal section of a modification of our
invention, all as hereafter described.

page_text: According to our invention we employ an injector A, having a small nozzle A'.
Steam is fed to the nozzle A' by means of a pipe 13, communicating with the
upper part of the boiler C, and the pipe B is carried backwards and forwards over
the fire, as seen at Fig. 3, in order to superheat the steam passing through same,
prior to its arrival at the nozzle A of the injector A. D is a cock or
valve for regulating the amount of steam passing through the pipe B. E is
the pipe through which air is.fed to the injector A, and such pipe E may be
connected to drains, sewers, rooms, or other places from which it is desired to
extract noxious fumes or gases. F is a distributor for distributing the air either
beneath the fire bars as seen at Fig. 2, or above them as seen at Fig. 4; in either
case the products of combustion are entirely burnt or nearly 50, and little or no
smoke is emitted from the chimney.
Fuel in a solid, liquid, or gaseous state may be fed onto the fire by connecting
the pipe E with the dust fuel supply to be burnt, in which case the dust travels
along the pipe in conjunction with air, and is distributed on the fire by the
distributor F.
When our invention is applied to the ventilation of drains, sewers, retorts,
rooms, or other places, the vitiated air is extracted and fed onto the fire, where
the germs of disease are burnt instead of being freed as is now the case, whilst at
the same time the combustion in the furnace is promoted and smoke consumed.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is
1. In apparatus for consuming smoke, and for ventilating purposes, the employ-
ment of the injector A fed with steam by pipe B for supplying air and
promoting combustion and consuming smoke in furnaces, substantially as described.
2. The employment of the pipe B passing backwards and forwards over the
fire for superheating the steain, in combination with the injector A and
distributor F, as and for the purposes set forth.
3. The employment of injector A, pipe E, and distributor F, for feeding fuel in
a solid, liquid, or gaseous state onto the fire, substantially as described.
4. The combination of the various parts described and shewn for consuming
smoke, drawing fuel, drawing air, and for ventilating drains, sewers, retorts, rooms,
or other places, all acting substantially as and for the purposes herein set forth.
Dated this 4th day of April 1892.
BREWER & SON,
Leeds and London, Agents for Applicants.