An Improvement in Stoves or Fire Grates.
Year: 1890

page_text: Date of Application, 20th Nov., 1890
Complete Specification Left, 25th Feb., 1891-Accepted. 28th Mar.. 1891
PROVISIONAL SPECIFICATION.
An Improvement in Stoves or Fire Grates.
I, ARCHIBALD STEELE, of 103, Euston Road, London, N.W., Hotel Proprietor,
do hereby declare the nature of this invention to be as follows :-
My invention relates to an improvement in firegrates, and is particularly
applicable for converting ordinary quick-combustion grates, in which the bottom of
the firebasket is a grating, into slow-combustion grates, although it is equally
applicable to new grates, with the object to so restrict or regulate the draught as to
produce the same effect.
The invention consists in the application, at the bottom of the firebasket, of a
corrugated plate, perforated at alternate corrugations the plate being laid upon the
grating or other bottom of the stove.
The plate may be arranged according as it is desired to increase or diminish the
draught, which is greater when the perforated corrugations are upwards than when
they are downwards, and rest on the grated or other bottom.
By the use of this appliance it is not necessary that the fire should be wholly laid
with fresh coal, which may be disposed at the top and front only the back part
being made up with cinders or small coal and the fire lighted at top and consumed
from above downwards.
Dated this 20th day of November 1890.
A. STEELE,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.
COMPLETE SPECIFICATION.
An Improvement in Stoves or Fire Grates.
I, ARCHIBALD STEELE, of 103, Euston Road, London, N.W., Hotel Proprietor,
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 invention relates to an improvement in, or applicable to, firegrates, particu-
larly ordinary quick-combustion grates, in which the bottom of the firebasket is a
grating; and it consists of a device whereby the draught is so restricted, regulated,
and distributed, as to produce a slow and equable combustion of the fuel, the
device being also applicable, with good effect, to slow-combustion grates, having a
solid bottom.
The invention consists of a corrugated plate, perforated at the upwardly-
projecting corrugations, the plate being adapted to cover the grating or other
bottom of the firebasket in such manner that the corrugations and perforations are
the only channels for the admission of draught beneath the fire.
The accompanying drawings, forming part of this Specification, illustrate in
Figures 1 and 2 a plan and section on line 1-1 of the appliance, and Figure 3
shews it as applied to the stove.
The plate A may be of iron or of fireclay cast or moulded at intervals of say,
from one to two or more inches apart, with corrugations B, B extending from front
to back and projecting upwards about 1 inches, more or less, from its surface, so as
to form channels for the admission of air, the corrugations being perforated at the
summits or sides with rows of holes about th inch diameter at intervals of about
an inch or with slits about th inch wide and half an inch long at intervals of about
CD 01

page_text: an inch or more as required. This corrugated perforated plate corresponds in form to
the grating or other bottom of the firegrate, which it completely covers, and the
fuel rests upon the corrugated plate.
By the use of this appliance, it is not necessary that the fire should be wholly
laid with fresh coal, which may be disposed at the top and front only, the back part
being made up with cinders, coke, or small coal and the fire lighted at top and
consumed from above downwards.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
The application, to a firegrate, of the herein-described corrugated and perforated
plate as a bottom for the firebasket for restricting or regulating and distributing
the bottom draught to the fuel, substantially as specified.
ARCHIBALD STEELE.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.