Improvements in or relating to Open Fire-grates.
Year: 1892

page_text: Date of Application, 10th Mar., 1892
Complete Specification Left, 10th Dec., 1892-Accepted, 14th Jan., 1893.
PROVISIONAL SPECIFICATION.
Improvements in or relating to Open Fire-grates.
I, ALBERT NELSON BROMLEY of Weekday Cross in the Borough of
Nottingham, Architect, do hereby declare the nature of this invention to be, as
follows:-
This invention relates to open fire-grates employed for general heating purposes
in sitting rooms and the like and it has for its object improvements in such fire-
grátes so as to render them more efficient than heretofore."
In carrying out my invention the back, sides, and if desirable part of the bottom
of the fire-grate is formed by a boiler the shell of which is made of the requisite
form for this purpose, and preferably with a water space which is uniform
throughout, I also preferably form the boiler so as to retain the appearance of an
ordinary sitting room or like fire-grate. This boiler is carried to a suitable height
and to increase its heating capacity may be formed with an opening through the
lower part of the back, which opening is connected to the chimney by a passage
or short flue running up the back of the boiler; this passage may be provided
at the upper end with a door or other suitable arrangement for regulating the
draught.
The boiler may be connected to and utilized for heating and circulating water in
a system of pipes in the same room as the fire-grate, or in any other part of a
building in which it is fixed.
In connection with a boiler such as described the fire-grate may also be adapted
to heat air which may be delivered into the room above the fire-grate.
For this purpose at the back of the boiler I form an air chamber either by
leaving a space between the boiler and the brickwork, or preferably by securing a
casing of a suitable size and shape to the back of the boiler, in which case the
whole is self-contained and less care is required in the setting; the air chamber
may be fitted with baffles suitably arranged so as to ensure proper circulation and
heating of the air before it is delivered.
The intake at the lower part of the air chamber may be connected to the
exterior of the building by a conduit, or to the interior of the room in which the
grate is fixed, and the air delivered from the upper part by a passage on each side
of the chimney space into a chamber in the upper and front part of the grate
provided with a grating through which the air can pass into the room, and a door
or other suitable arrangement for regulating the current. With this arrangement
the air is principally heated by the boiler and it is therefore impossible for it to
become overheated and disagreeable.
The advantage of the air heating arrangement and open fire-grate in connection
with a hot water circulating arrangement, is that the defects in the latter system
are remedied by the air heating arrangement which ensures a constant supply of
fresh warm air, and the open fire-grate which greatly assists in securing proper
ventilation.
Dated this 10th day of March 1892.
W. P. THOMPSON & BOULT,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
· Improvements in or relating to Open Fire-grates.
I, ALBERT NELSON BROMLEY, of Weekday Cross, in the Borough of
Nottingham, Architect, 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 open fire-grates employed for general heating purposes
and it has for its object improvements in such fire-grates so as to render them more
efficient than heretofore.
It will be best understood by reference to the accompanying drawings, in which
Fig. 1 is a front elevation.
Fig. 2 is a sectional plan, and
Fig. 3 is a vertical section of a fire-grate constructed according to my invention.
Like letters indicate like parts throughout the drawings.
The back, sides and, if desired, part of the bottom of the fire-grate is formed by
a boiler a provided with side extensions a, the shell of which is made of the
requisite form as shown, and preferably with a water space which is uniform
throughout. I also preferably form the front a¹ of the boiler so as to present the
same appearance as the back of an ordinary open fire-grate.
The boiler a is carried to a suitable height, and to increase its heating capacity
is formed with an opening or passage b through the lower part, which passage is
connected to the chimney by a short flue c running up the back of the boiler, or
through it as may be thought desirable; the flue c may be provided with a
damper & for regulating the draught.
The boiler may be connected to, and used for heating and circulating water in a
system of pipes either in the same room as the fire-grate or in any other part of the
building in which it is fixed.
In connection with a boiler such as described the fire-grate may also be adapted
to heat air which may be delivered into the room above the fire-grate.
For this purpose at the back of the boiler a I form an air chamber e either by
leaving a space between the boiler and the brickwork, or by securing a casing of a
suitable size and shape to the back of the boiler in which casing the whole grate is
self-contained and possibly less care would be required in the setting; the air
chamber may be fitted with baffles suitably arranged so as to ensure proper
circulation and heating of the air before it is delivered.
The intake e at the lower part of the air chamber may be connected to the
exterior of the building by a conduit or to the interior of the room to which the
grate is fixed and the air delivered from the upper part by passages on each side
of the chimney into a chamber y, provided with a grating g' through which the air
can pass into the room, and a door h or other suitable arrangement for regulating
the current.
With this arrangement the air is principally heated by the boiler and it is
therefore impossible for it to become overheated and disagreeable.
The advantage of the air heating arrangement and open fire grate in connection
with a hot water circulating arrangement, is that the defects in the latter system,
are remedied by the air heating arrangement, which ensures a certain supply of
fresh warm air, and the open firegrate which greatly assists in securing proper
ventilation.
In order that the fire may be kept burning all night or for a long time without
attention, a loose movable metal front may be placed in front of the grate, provided
at the lower part with an air inlet fitted with door so that the rate of combustion
may be regulated, this loose front will also serve as a protection against fire during
the night.

page_text: 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,
1. The combination with an open firegrate of a boiler such as a a' forming the
back and sides of the grate substantially as described and illustrated in the accom-
panying drawings.
2. The combination with an open firegrate of a boiler such as a a' provided with
an opening b and flue c substantially as described and illustrated in the accompanying
drawings.
3. In an open firegrate the combination with a boiler a of an air chamber such
as e provided with inlet and outlet substantially as described and illustrated in the
accompanying drawings.
4. In an open fire-grate the combination with a boiler of an air chamber provided
with inlet and outlet.
5. In an open fire-grate the combination of a boiler such as a a² flue such as c
and air chamber such as e substantially as described and illustrated in the accom-
panying drawings.
6. The combination and arrangement of parts constituting the complete fire-grate
boiler and air heater substantially as herein described and illustrated in the
accompanying drawings.
Dated thic 7th dox of Danambo- 1902.
ALBERT NELSON BROMLEY.
W. P. Thompson & Boult,
Of London, Liverpool, Nottingham, and Manchester,
Agents for the Applicant.