IMPROVE- MENTS IN DOMESTIC FIRE GRATES
Year: 1885

page_text: I THOMAS OAKLEY of 267 Deptford Lower Road, London, S.E. in the County
of Kent, Engineer, do hereby declare the nature of my invention for IMPROVE-
MENTS IN DOMESTIC FIRE GRATES to be as follows:-
14
My Improvements refer to the class of domestic fire grates generally known as
register" grates.
In carrying out my Invention I proceed as follows:-I cut or otherwise form in
the door or valve of any existing type of Register Grate, a slit or opening and adapt.
thereto, and use in conjunction there with, a moveable adjustable slide piece, which
allows of the Register door itself being kept closed; the aperture aforesaid being
opened sufficiently to allow of the admission of currents of heated air, and thereby.
to facilitate the ascent up the chimney of the products of combustion. The device
or contrivance according to my Invention also ensures that the heat which other..
wise would pass unutilised up the chimney, is diffused throughout the room in.
which the grate having said device or contrivance is fixed.-Also, by means of my
Invention I am enabled, owing to the sharp draught I ensure, to effect the com-
bustion of Anthracite smokeless coal in Domestic Fire Grates without necessitating
for said purpose any special appliance other than the contrivance aforesaid.-
Further. By the use of my Invention, the annoyance of down draught will be
obviated; and, owing to the fact of the air which enters through the aperture
aforesaid being heated, this will conduce towards the consumption of smoke when
ordinary coal or other bitumenous and smoke producing fuel is employed.

page_text: Improvements in Domestic Fire Grates.
"
I THOMAS OAKLEY of 267 Deptford Lower Road in the County of Kent
Engineer do hereby declare the nature of my invention for "IMPROVEMENTS IN
DOMESTIC FIRE GRATES and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement,
reference being had to the accompanying sheet of drawings in which Figure 1 is a
detailed front view of the device or contrivance according to my Invention drawn
to an enlarged scale relatively to Figures 2 and 3 which are respectively a vertical
sectional elevation and a front elevation of above referred to device as fitted to a
register grate.
In carrying out my Invention I cut or otherwise form in the door or valve of
any existing type of register grate, a slit or opening a and adapt thereto and use
in conjunction therewith a movable slide piece b, adjustable at c, d which allows of
the register door or valve itself being kept closed, the aperture a aforesaid being
opened sufficiently by means of the adjustable slide b to allow of the admission of
currents of heated air and thereby to facilitate the ascent up the chimney of the
heated products of combustion. I am thus enabled to improve the draught; and
to give an increase of heat in the apartment in which the improved register
according to my Invention is fixed, with a reduced consumption of fuel; as, the
sliding door b is only opened to an extent sufficient to allow of complete com-
bustion ensuing.
I also form around the top of the door or valve as shewn in the drawing, a series
of openings or perforations e preferably conical-that is to say, said openings being
of slightly increased diameter at the front or face,-relatively to their diameter at
the back of the door or valve.-A considerable volume of highly heated air passes
through the perforations e and assists materially by combining with the heated air
which enters through the aperture a, in rendering the device according to my
Invention valuable as a very efficient smoke consumer and a preventative means
against down draught in chimneys.-Referring to Figures 1, 2 and 3 it will be
seen that I form the movable slide b with a slightly curved and deflected hood
piece or ledge f, with the same object in view as set forth in the Specification of
my Invention No 14349 of 1884, viz:-to further conduce by means of an induced-
draught towards the upward passage of the products of combustion.
I may mention also that by means of my Invention as hereinbefore described
I am enabled owing to the sharp draught which is ensured-to effect the com
bustion of Anthracite smokeless coal in domestic fire grates.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is
The improvements in register fire grates substantially as herein shewn and
described and for the purposes set forth.
Dated this Bounth dove of Innur 1000