An Improvement in Stoves or Fireplaces.
Year: 1898

page_text: An Improvement in Stoves or Fireplaces.
I, RICHARD JEWHURST, of 45, Northumberland Road, Cliftonville, Margate,
in the County of Kent, Ironmonger, do hereby declare the nature of this invention
to be as follows:
-
This invention relates to fireclay cheeks and backs for stoves and fireplaces and
has for its object to ensure more perfect combustion of the fuel and particularly
of small coal or dust so as to obtain greater heat with a less consumption of fuel,
by the provision in the cheeks and back of passages for the admission of air to
the back and sides of the mass of fuel so that the air necessary for maintaining
efficient combustion will have free access to the mass of fuel on all sides.
According to the invention the cheeks and back are moulded with vertically
extending corrugations on their front faces so as to form vertical air channels,
and in addition thereto the cheeks and back are perforated with upwardly
extending air passages leading from the lower edges of the blocks and intersected
by transverse inlet passages leading from the front edges of the cheeks and by
emission passages opening out through the faces of the cheeks and back in
immediate contact with the mass of fuel. The air has free access from below or
through the grate to the lower ends of the vertical passages in the side cheeks
whilst the cheeks and back are mitre-jointed together in such manner that the
back will be supported by the cheeks at a certain distance above the grate so as
to provide beneath the lower edge of the back an air space admitting of such a free
and continuous circulation of the air from beneath the grate through the passages
of the back and cheeks as to maintain them in a highly heated condition.
1000
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London,
An Improvement in Stoves or Fireplaces.
I, RICHARD JEWHURST, of 45, Northumberland Road, Cliftonville, Margate,
in the County of Kent, Ironmonger, 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 fireclay cheeks and backs for stoves and fireplaces and
has for its object to ensure more perfect combustion of the fuel and particularly
of small coal or dust so as to obtain greater heat with a less consumption of fuel,
by the provision, in the cheeks and back, of passages for the admission of air to

page_text: the back and sides of the mass of fuel so that the air necessary for maintaining
efficient combustion will have free access to the mass of fuel on all sides.
The invention will be described with reference to the accompanying drawings
forming part of this specification wherein Figure 1 is a plan view, Figure 2 a
front elevation with the fire-bars removed and Figure 3 a section from front
to back, of an ordinary domestic firegrate fitted with my improved fireclay cheeks
and back.
According to my invention the cheeks A A and back B are moulded with
upwardly extending ribs or corrugations c on their front faces so as to form
vertical air channels or grooves c between such corrugations, and in addition
thereto the cheeks and back are perforated with upwardly extending air passages d
leading from the lower edges e of the blocks, said passages d being closed at top
and intersected by horizontal inlet passages f leading from the front edges 9 of
the cheeks A A and by emission passages opening out through the faces of the
cheeks A A and back B in immediate contact with the mass of fuel, the outlet
orifices of the passages h being preferably situated in the upwardly extending
grooves c. The air has free access from below or through the bottom K of the
grate to the lower ends of the upwardly extending passages d in the side cheeks
whilst the cheeks and back are mitre-jointed together (as shewn) in such manner
that the back 13 (which may be of less depth from top to bottom than the
cheeks A A) will be supported by the cheeks at a certain distance above the bottom
of the grate so as to provide beneath the lower edge of the back B a space L
through which air can freely enter the upwardly extending passages d'in the
back.
As soon as the fire is lighted, air to maintain the combustion at the sides and
back of the mass of fuel, is drawn in through the upwardly extending passages
and horizontal passages f and discharged through the emission passages h, s0
that combustion is freely maintained not merely at the front, or at the front and
bottom of the grate as usual, but at the sides and back thereof as well. The
fireclay blocks A B thus become rapidly heated to a high temperature, which in
turn is communicated to the air which passes through the passages d, f and h
traversing the blocks, the result being that combustion is greatly facilitated,
whilst fuel (such as slack or coal dust) otherwise difficult to keep alight, can be
burnt with ease and advantage.
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:-
Fireclay cheeks and backs for stoves and fireplaces provided with upwardly
extending ribs or corrugations on their front faces, and with upwardly extending
and horizontal passages through which air is admitted to the fuel, substantially
as described and for the purpose specified. "
решениет
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.