Improvements in or relating to Portable Heating Apparatus
Year: 1889

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to Portable Heating Apparatus."
A communication from DANIEL TIRELLE and THOMAS PÉCHIEU, of 73, Rue Turbigo,
Paris, in the Republic of France, Stove Manufacturer.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E., 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 present invention relates to a portable stove or heating apparatus and will be
best understood by reference to the accompanying drawings in which
Fig. 1 is a view of the stove in front elevation partly broken away to show the air
passages in the hollow back.
Fig. 2 is a horizontal section on the line 22 of Fig. 1 and
Fig. 3 is a vertical section through the hollow back.
Like letters indicate like parts throughout the drawings.
A is the fire basket or grate which may be adapted to burn coal coke or other fuel
and which is removable from the stove. B are the hollow side walls and C the hollow
back of the stove. At its upper part (upwards from the plate G) the back C is
separated from the sides B by plates D Fig. 2, but is in communication with the sides
below the plate G. E is the stove front and F are openings through its lower part to
admit air to the interior of the double side walls B and thence to the back C.
Within the hollow back C are arranged plates G H and I Fig. 3 for the purpose
of diverting the passage of air through the back C so as to keep it a long while in
contact with the heated walls of the back C. J are openings in the upper part of the
stove front E connected by pipes or the like with corresponding openings in the back C
as indicated in dotted lines in Fig. 3. K is the stove outlet which is connected to the
chimney in any convenient manner.
The apparatus is supported on three casters L L' two (L) of which are placed at the
sides and the third (L) at the front part of the apparatus so that the said apparatus
may be moved easily from one room to another the handles M further facilitating such
removal.
When the apparatus is in use the cooler air enters or is drawn by the circulation
through the openings F and passes through the lower part of the side walls B into the
lower part of the back Chelow the plate Ġ therein. The air then, as indicated by the
arrows in Figs. 1 and 3, passes through the central opening of plate G then outwards
to and past the ends of plate H and then inwards to and through the central opening
of plate I where the air is divided by plate N and passes back into the room in a
highly heated condition through the pipes and openings J.
The before described apparatus permits of the utilization of considerably more of
the heat produced than is utilized in equivalent apparatus as ordinarily constructed
and by being placed in an ordinary chimney recess it also obviates the general
detrimental effects to health usually attendant upon the use of ordinary portable
stoves and heating apparatus which operate upon the same principles as an ordinary
fire-place.
The apparatus as represented in the accompanying drawings is adapted for the use
of coal, coke and other such fuel, but by removing the grate A and substituting
therefor iron bars or dogs, wood may be used as the fuel.
It is obvious as regards health, economy and pleasure that the before described
apparatus leaves nothing to be desired and while giving out four times the heat of an
ordinary fire-place any kind of combustible can be used without the least danger to
the occupants of the room or to the neighbours this being contrary to any system
known up to the present.

page_text: Having now particularly described and ascertained the nature of the said
invention as communicated to me by my foreign correspondent, and in what manner
the samé is to be performed, I declare that what I claim is :-
1. A portable heating apparatus characterised by a movable grate such as A two
lateral openings such as F by which the air enters to be heated by contact with the
surfaces of the apparatus and to be finally conveyed. back into the room by the
openings J substantially as herein described.
2. The combination and arrangement of parts constituting the complete heating
apparatus substantially as and for the purpose described and illustrated in the accom-
panying drawings.
1L: 17 1
1
1000
W. P. THOMPSON & BOULT,
Agents for the Applicant.