Improvements connected with Mechanical Stokers to Promote the Consumption of Smoke.
Year: 1889

page_text: Date of Application, 8th June, 1889
Complete Specification Left. 11th Jan.. 1890-Accepted, 15th Feb., 1890
PROVISIONAL SPECIFICATION.
Improvements connected with Mechanical Stokers to Promote the
Consumption of Smoke.
I, WILLIAM LEACH, of 54 Paxton Street, Accrington, in the County of Lancaster.
Mechanical Engineer, do hereby declare the nature of this invention to be as
follows:-
My present invention is intended to be worked in combination with a deflecting
plate employed for distributing fuel into the furnace of a steam boiler as set forth
and described in prior Letters Patent granted to me, No. 16096, dated the 23rd day
of November 1887.
According to this invention, I place over the furnace a tube in which is inserted
the end of a steam pipe communicating with any convenient part of the boiler or
otherwise for the purpose of injecting steam through the said pipe and causing same
to descend towards the bridge end of the furnace. The outward end of the said pipe
is preferably open to the atmosphere so that atmospheric air in combination with the
steam may be forced into the said furnace, descending upon the smoke and preventing
its passing away up the chimney; by which means the emission of dense smoke will
be prevented.
By combining the smoke preventer as herein described with the mechanical stoker
patented by me as mentioned above, boiler furnaces will require very little attention
on the part of the workman, in addition to which the emission of smoke is
prevented.
TASKER & CROSSLEY,
Halifax, Agents.
COMPLETE SPECIFICATION.
Improvements connected with Mechanical Stokers to Promote the
Consumption of Smoke.
I, WILLIAM LEACH, of 54 Paxton Street, Accrington, Lancashire, Mechanical
Engineer, 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 :-
My present invention is intended to be worked in combination with a deflecting
plate employed for distributing fuel into the furnace of a steam boiler as set forth
and described in prior Letters Patent granted to me No. 16096, dated the 23rd
day of November 1887.
According to this invention, I place over the furnace a tube in which is inserted
the end of a steam pipe communicating with any convenient part of the boiler or
otherwise for the purpose of injecting steam through the said pipe and causing same
to descend towards the bridge end of the furnace. The outward end of the said pipe
is preferably open to the atmosphere so that atmospheric air in combination with the
steam may be forced into the said furnace, descending upon the fire and consuming
the smoke, thereby preventing its passing away up the chimney; by which means
the emission of dense smoke will be prevented. -
Such being the nature of my invention, I will now proceed to describe the same
more fully, and for that purpose make reference to the accompanying sheet of
drawings illustrative thereof, wherein A represents the front of a boiler furnace,
B the grate bars and C the furnace door. D represents a hopper for supplying fuel
to the said furnace, which is thrown therein by the revolving fan E, such said fuel,

page_text: however, being equally distributed within the furnace, by first of all coming into
contact with the deflecting plate F, which is made to oscillate by means of
rod G and cam H acting upon the bowl I fixed to a bracket J on the top of the said
rod G so that as the said cam revolves, an oscillating or upward and downward
movement is given to the deflecting plate for distributing the fuel in the furnace as
described in my prior Patent No. 1609687. K represents a pipe of any suitable
diameter and length, the front end of which is open for the reception of a small
pipe a in communication with any convenient part of the boiler or a steam pipe,
so that steam can enter into the said pipe and be forced into the furnace, descending
upon the fire and consuming the smoke, whereby it is prevented from passing away
up the chimney, by which means the emission of dense smoke is prevented.
By combining the smoke preventor as herein described with the mechanical stoker
patented by me, as mentioned above, boiler furnaces will require very little atten-
tion on the part of the workman, in addition to which the emission of smoke is
prevented.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
In steam boiler furnaces, the introduction of air and steam for consuming smoke,
in combination with a deflecting plate such as F, all arranged in manner substantially
as described.
Dated this 10th day of Jonno 1800
TASKER & CROSSLEY,
Halifax, Agents.