Improvements in Stoves or Fireplaces for Heating Purposes.
Year: 1893

page_text: Date of Application, 14th June, 1893
Complete Specification Left, 14th Mar., 1894-Accepted, 14th Apr., 1894
PROVISIONAL SPECIFICATION.
Improvements in Stoves or Fireplaces for Heating Purposes.
I, THOMAS HELYEAR, Engineer and Machinist, of West Street, Bridport,
in the County of Dorset, do hereby declare the nature of this invention to be as
follows:-
This invention for improvements in stoves or fireplaces has for its object to more
effectually utilize the heat of combustion than is the case with stoves or fireplaces
as at present constructed and thereby greatly economize the consumption of fuel ;
and consists essentially in causing the gaseous products of combustion on leaving the
grate to pass through one or more flues formed in the stove or fireplace before
escaping into the chimney.
In one arrangement of stove or fireplace constructed according to this invention
an ordinary firegrate is employed with bevelled or inclined sides; but instead of
being sunk or recessed into the chimney jam as is usual with open grates as
ordinarily constructed, the whole is projected forwards into the room to be
heated. On leaving the grate proper the gaseous products of combustion ascend
and are diverted and pass downwards through side flues, forming a part of the
front casing, to the bottom of the apparatus and from thence upwards through
an uptake flue into the chimney. The products of combustion in passing through
the aforesaid flues give off their heat to the casing of the stove or fireplace from
which it is radiated into the room.
The apparatus is provided with a suitable removable back plate and with
cover plates for the convenience of cleaning the chimney and flues.
"
The stove or fireplace may be supported on rollers or wheels for the purpose of
removing it from and placing it in its position.
In a modified arrangement the uptake flues are dispensed with, the smoke and gases
escaping directly into the chimney.
Dated this 14th day of June 1893.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Stoves or Fireplaces for Heating Purposes.
I THOMAS HELYEAR, Engineer and Machinist of West Street, Bridport, in the
County of Dorset, 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 for improvements in stoves or fireplaces has for its object to more
effectually utilize the heat of combustion than is the case with stoves or fireplaces as
at present constructed and thereby greatly economize the consumption of fuel; and
consists essentially in causing the gaseous products of combustion on leaving the
grate to pass through one or more flues formed in the stove or fireplace before
escaping into the chimney.
In the accompanying three sheets of illustrative drawings
Fig. 1 is a front elevation of one form of fireplace constructed according to this
invention.

page_text: .
Fig. 3 is a plan of the same.
Fig. 4 is a back elevation, and
Figs. 5, 6, and 7 are back elevation plan and side elevation respectively of back
plate for permitting access to the chimney for cleaning purposes, and
Fig. 8 is a side elevation of a modified arrangement suitable for a stove or
fireplace detached from the chimney recess.
Referring to Figs. 1 to 7 inclusive, the coal or other combustible is placed in the
grate a and the heated gases ascend and pass over the division plates b and down
the flues's formed by the plates bc and back plate d and through the exits e into 1
the chimney. In order to permit of access to the back of the fireplace for the
purpose of cleaning the chimney, a closing platef is provided having a bevel g which
fits into a corresponding bevel in the back of the fireplace while the flanges i make
a close joint with the back plate I, the whole being secured by means of the catch
lever m which engages with the lip n as will be readily understood. To fix the
plate fin position it is passed through the opening o and placed with the bevel g in
the bevel h and the lever m turned against the lip n, the Hanges i forming a close
joint at the back of the plate 7.
Openings p are provided to facilitate the removal of soot.
In the modified arrangement shown in Fig. 8 instead of the products of combustion
passing directly into the chimney after leaving the openings e an uptake chamber y
is provided for conveying then to the pipe r connected to the chimney, thereby
allowing the apparatus to be fixed at any distance from the chimney in the same
manner as an ordinary stove.
The arrows in Fig. 1 indicate the direction of the passage of the gases through
the apparatus.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
8
1. A stove or fireplace comprising a grate a and flues & substantially as described
and for the purpose set forth.
2. A stove or fireplace comprising a grate a flues s and uptake y substantially as
described.
3. The arrangement and construction of stoves or fireplaces substantially as
described with reference to Figs. 1 to 7 inclusive of the drawings.
4. The arrangement and construction of stoves or fireplaces substantially as
described with reference to Fig. 8 of the drawings.
Dated this 14th day of March 1894.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.