Improvements in Stoves for Heating and Ventilating Buildings.
Year: 1889

page_text: Date of Application, 11th June, 1889
Complete Specification Left, 1st Jan., 1890-Accepted, 11th June, 1890
PROVISIONAL SPECIFICATION.
Improvements in Stoves for Heating and Ventilating Buildings.
CHARLES JAMES HENDERSON Gentleman Winterton Lodge Waltham Cross Herts.
do hereby declare the nature of this invention to be as follows:-
The stove to be formed of fire clay preferably with bricks, having holes in them,
as to form tubes, through which air may pass, and be heated.
The stove to stand on an iron frame at any convenient height from the floor.
The
space enclosed by the bricks, instead of being filled with coal or coke; to be
by, asbestos, lumps-as inconbustible fuel.
The heat being supplied to them by Bunsen gas or oil lamp from below: The
burner resting on the frame. The stove being a close one, heat is detained by the
sbestos lumps, and passes freely into the enclosing fire clay bricks, so that fresh air,
n passing through them acquires a very high temperature.
Dated this 11th day of Inno 1020
CHARLES J. HENDERSON.
COMPLETE SPECIFICATION.
Improvements in Stoves for Heating and Ventilating Buildings.
CHARLES JAMES HENDERSON Winterton Lodge, Waltham Cross Herts Gentleman,
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:-
The stove to be formed of fireclay pipes, or preferably with bricks, having holes
in them, so as to form tubes, when built up, A, through which, air-preferably from
outside, may pass up and be heated. The stove to stand on an iron frame, at any
convenient distance from the floor.
The space enclosed by the pipe or bricks, with cover on the top; instead of being
filled with coal or coke, to be filled by asbestos, or other non combustible fuel, heat
being supplied to them by Bunsen gas or oil lamp below.
The stove, being a close one-except along the bottom, where perforated sheet
iron, will admit, through small holes, a moderate supply of air.
On this perforated plate, a Bunsen gas burner to be placed; or an oil lamp to give
heat: The heat from air so enclosed, escapes very freely, through the fireclay, aided,
as it is by the expansion which results, and the remains of it is allowed to escape, by
a pipe or passage B for further use, or to outside. An outer case to be added so as
to prevent radiation, and direct the current of hot air to the roof. The product of
combustion which escapes need not enter the apartment; but its use may still be
available if it be made to enter an additional stove, D similar in construction to
the main stove on the same principle as in steam engines, more than one cylinder is
availed of, for the production of heat. The current of this fresh hot air should
escape from the stove not nearer the floor than about eight feet, and thus very
materially aid the ventilation of the apartment. The hot air on reaching the roof
spreads along horizontally, in obedience to its natural law that "isothermal interfaces
adjust themselves horizontally,"-the hottest being always uppermost, which ensures
equality of temperature near the floor; and if it be wanted to warm other apart-
ments, an opening in the partition, near the roof, of a few feet will enable the hot air
to enter, and give similar results. But there is a still more important advantage in the
arrangement if ventilating tubes C are formed near the floor, where the air becomes
vitiated; the effect of the expansion, by heat entering the apartment above, very
materially aids in driving the vitiated air of a congregation below up these C tubes―
Price bi

page_text: the only way of escape and its being replaced by the fresh air continuously
entering above, and free from any current of cold air.
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―
1st. The use of fireclay instead of iron for the material parts of the stove.
2nd. Abandoning coals and coke in favour of asbestos, gas, or oil for the
production of heat.
3rd. The heat in the stove being confined above, expanding, forces it into the
fireclay.
n
4th day of December 1889
CHARLES J. HENDERSON.