Year: 1899

page_text: HARRY WILLIAM ROBERTS, Kingston House, Newmarket, Cambridgeshire,
Architect, do hereby declare the nature of this invention to be as follows: -
The fireplace is constructed of firebrick, glazed in all parts, not in direct
contact with the fire.
!
It is designed so that it can be built up between the brick jambs of an
ordinarily constructed chimney breast.
It is brought forward 7" or more from the face of the wall, allowing flues A
2" deep and 9" wide to be formed on the face of the chimney jambs to supply
air under the bottom of the fire; these flues in zinc wood plaster or the like
are regulated and can be carried up above the level of the chimney piece with
inlets at the top front or sides at any height that may be desired.
The firebox is formed with vertical front and back and with sloping sides
down to the bottom of firespace, with arched openings under each sloping
side B.
There is an opening in front of the firebox C to regulate draught on lighting
fire and for removing ash, which is caught in a pan E which draws out in
front after removing regulator.
The bottom of firebox D) is formed of cast iron bars slightly arched from side
to side and with deeper bars at back to throw up the fire at that part and
increase the draught.
The back of fireplace is brought forward with bricks shaped vertically and
horizontally.
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The fireplace is simple solid and homogeneous firebrick requiring no metal
cramps plates bars and the like, it is built with fine mortar except in parts
immediately in contact with fire; where fireclay is used; the fireplace becomes
an integral part of the house and is complete of itself; so that the chimney
piece if of wood, can be fixed in a very simple manner allowing it to be moved
and replaced quite easily.
(1) I claim that the whole fire place being brought forward from the face
of the wall; not only brings the heat into the room, but allows wood chimney-
pieces to be used with greater safety; as they can be designed with the wood-
work mostly behind the face of glazed brickwork, and yet give a wide shelf.
It also allows the air flues to be formed on the face of wall instead of cutting
into the brick jambs.
(ii) I claim that this fire draws down and burns a proportion of the vitiated
air from any desired level of the room, instead of the purer air of a lower
stratum as through the bottom and front of an ordinary grate.
(iii) I claim that the back built of solid brickwork is not so liable to crack
as a flat slab; and the form of the back built with shaped bricks gives greater
heating surface than a straight back; the front and sides of firebox get very
hot and having large surfaces, spread the heat in all directions.
(iv). I claim that the bottom of firebox being slightly arched and having bars

page_text: deeper at the back than at the front, gives an improved form of bottom allowing
the air to get to all parts of fire with increase draught at the back producing
better combustion.
(y) I claim that it is much safer than an ordinary grate as the fuel cannot
fall out.
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I find that these fireplaces being solidly built of brickwork properly bonded
together; do not crack nor harbour dust vermin and the like; having glazed
surfaces they are easily cleaned; they keep a clean and tidy hearth; thoroughly
consume all kinds of fuel, coal coal dust coke wood and peat, and are most
economical in use; burning small amount of fuel; requiring very little atten-
tion, and capable of being so regulated that they may be kept alight without
more fuel or attention for 2 or 3 days.
Dated this 27th day of June 1899.
HARRY WILLIAM ROBERTS.
COMPLETE SPECIFICATION.
Improvements in Fireplaces.
I, HARRY WILLIAM ROBERTS, of Kingston House, Newmarket, in the County
of Cambridge, 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:
1
This invention for improvements in fireplaces has for its objects to build a
slightly projecting solid substantial fireplace so that the heat is brought well
into the room and the structure forms a support for the chimney piece or mantel
shelf, to draw part of the air for combustion from any desired height of the
room through flues on the face of the wall so that a part of the impure or
vitiated air is burnt; to improve the form of the bottom grate and thus ensure
better combustion and increased life; to increase the superficial area of the back
of the fireplace (heating surface) and to construct the fireplace so that it is
impossible for the fuel to fall out.
This invention consists in solidly building the fireplace of brick in front of
the main wall, in completely enclosing the bottom of the fireplace, in providing
air flues that open out in the enclosed space beneath the fire space and with
inlets from the room at any desired height.
!
The sides of the fireplace incline downwards and inwards and the back is
formed of bricks shaped horizontally and vertically. The two vertical front
edges and the bottom edge of the brick are rounded off and the bricks are
built slightly inclined to the horizontal and projected forwards. The fire grate
or bars are arched sideways and are raised towards the back.
An ash pan is provided underneath the grate to facilitate the removal of
ashes and the like.
All visible parts of the fireplace are built of glazed or salt glazed bricks.
A fireplace so constructed is solid, homogenous and properly bonded and will
not crack, nor harbour vermin. It requires no metal pieces to fix it.
It forms
an integral part of the house and is complete in itself.
It forms a convenient and simple resting place for the chimney piece or
mantel shelf which can be easily removed and replaced the greater part of
woodwork being behind the face of the fireplace.
The fireplace thoroughly consumes all kinds of fuel, coal, coaldust, coke, wood,
peat and the like and is most economical in use, requires little attention and
burns for a very long time.

page_text: In the accompanying sheet of illustrative drawings Fig. 1 is an elevation of
a fireplace constructed according to this invention and Fig. 2 is a section and
Fig. 3 a plan of the same. Figs. 4, 5 and 6 are plan, side elevation and front
elevation of the bricks forming the back.
The fireplace is built up between the ordinary jambs of a chimney breast.
The front F of the fireplace is built in front of the main wall M and an air
flue A is left between the front F and the wall M.
The flue A above the level L of the mantel board can be continued up in
wood or other suitable material and is provided with an inlet at any desired
level, which can be regulated. At the bottom the air flue A opens out through
arch openings B in the sides S below the fire bottom D. The firebox is formed
with a vertical front and back and the sides S incline towards the bottom D.
As shown in Fig. 1 the opening C is provided in front at the bottom of the
fireplace and is closed by glazed firebrick F and serves to regulate the draught
on lighting the fire and for the insertion and withdrawal of the ash pan E. The
bottom of the grate D is arched sideways and is raised towards the back. The
back N of the fireplace is built of specially shaped bricks brought forward,
shown to give the
the bricks being slightly inclined to the horizontal as
desired inclination. The two vertical edges I and the bottom edge X of the
front face of the brick are rounded off as shown.
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:
1. A fireplace built solidly and entirely of firebrick within the chimney
jambs and provided with inlet vertical air flues on the face of chimney breast
opening into an enclosed under fire space, substantially as described.
2. A fireplace having an enclosed firebrick fire space and provided with air
flues opening into the enclosed underfire space with the inlets at any desired
height substantially as described.
3. The enclosed fire space consisting of the arched bottom, raised towards the
back, the inclined sides and vertical front and horizontally and vertically shaped
sloping back giving an increased area of heating surface, substantially as
described.
4. The fireplace with the hearth on level with floor consisting of the arched
bottom, the inclined sides, the forwardly projecting back and front substan-
tially as described.
5. The improved fireplace substantially as described with reference to the
drawings.
Dated this 31st day of August 1899.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, Agents.