Year: 1888

page_text: Date of Application, 26th July, 1888
Complete Specification Left, 25th Mar., 1889
Complete Specification Accepted, 1st June, 1889
I JAMES PROCTOR of Hammerton Street Iron Works Burnley in the County of
Lancaster Engineer do hereby declare the nature of this invention to be as
follows:-
This invention relates to the doors of such furnaces as are supplied with fuel by
selfacting mechanism commonly called "mechanical stokers" which mechanism throws
or pitches the fuel into the furnace automatically.
An objection to such "mechanical stokers has been that a portion of the fuel
sometimes accumulates on the dead plate against the door and remains there in a black
unconsumed mass. having to be pushed back by the fireman thereby causing black
smoke to arise, and if this mass is allowed to accumulate too much it interferes with.
the proper working of the mechanical stoker.
The object of my present invention is to keep this fuel, on the dead plate at the
back of the door, alight at all times so that it becomes consumed with the other fuel
and does not accumulate at the back of the door.
For this purpose I employ a door hung from a pivot or hinge at the top and hanging
perpendicular or nearly so with its lower edge resting against the dead plate.
In the upper part of this door I make a long perforation or slot with a sliding
cover through which a rake can be introduced when required to trim the fire instead
of opening the door as hitherto ; and at the bottom part of the door I form a grating
or a series of vertical openings slots or air spaces for the purpose of admitting a
supply of air to keep up the combustion of the fuel which falls onto the dead plate
at the back of the door, and it will be found that the admission of a
supply of air
through this grating at the lower side of the door will cause the combustion of any
fuel which may fall on the dead plate and prevent it from accumulating in a black
mass at the back of the door as heretofore, and thus a more perfect combustion is
obtained.
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicant.

page_text: 'I JAMES PROCTOR of Hammerton Street Iron Works Burnley in the County of
Lancaster 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 :-
This invention relates to the doors of such furnaces as are supplied with fuel by
self acting mechanism commonly called "mechanical stokers" which mechanism throws
or pitches the fuel into the furnace automatically.
An objection to such mechanical stokers has been that a portion of the fuel
sometimes accumulates on the "dead plate" against the door and remains there in
a black unconsumed mass, having to be pushed back by the fireman thereby causing
black smoke to arise, and if this mass is allowed to accumulate too much it interferes
with the proper working of the mechanical stoker.
The object of my present invention is to keep this fuel, on the "dead plate "at
the back of the door, alight at all times so that it becomes consumed with the other
fuel and does not accumulate at the back of the door.
The nature of my invention and the manner in which the same is to be performed
or carried into practical effect will be readily understood on reference to the sheet of
drawings hereunto annexed and the following explanation thereof.
Fig. 1 is a front elevation of a furnace door constructed according to my
improvements.
Fig. 2 is a longitudinal section of the same taken through about the line A-B in
Fig. and Fig. 3 is a vertical section taken through about the line C-D.
The door a is hung from two pivots b (or from a hinge) at the top and hanging
perpendicular or nearly so with its lower edge resting against the "dead plate." In
the upper part of this door I make a long perforation or slot c with a sliding cover d
through which a rake can be introduced when required to trim the fire instead of
opening the door as hitherto; and at the bottom part of the door a I form a grating
or a series of vertical openings slots or air spaces e for the purpose of admitting
a supply of air to keep up the combustion of the fuel which falls onto the "dead
plate" at the back of the door, and it will be found that the admission of a supply of
air through this grating e at the lower side of the door a will cause the combustion
of any fuel which may fall on the dead plate and prevent it from accumulating in a
black mass at the back of the door as heretofore, and thus a more perfect combustion
is obtained

page_text: 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 :-
:-
A furnace door hung from pivots or a hinge above and provided at the upper part
with a slot or perforation covered with a slide (for the introduction of a rake) and at
the bottom part with a series of vertical openings, slots or air spaces substantially
in the manner and for the purposes herein before particularly described and illustrated
by the drawings annexed.