Improvements in or relating to Apparatus for Use in Heating Rooms, Apartments, and the like.
Year: 1897

page_text: Improvements in or relating to Apparatus for Use in Heating Rooms,
Apartments, and the like.
A communication from PAUL FERRARY and EDOUARD FERRARY, of 31 Boulevard
Haussinann, Paris, in the Republic of France, Merchants.
I, ALFRED JULIUS BOULT of 111 Hatton Garden in the County of Middlesex,
Chartered Patent Agent 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 apparatus for use in heating rooms and the like and is
constituted by a series of tubes or by a tube of serpentine shape formed of ascending
and descending tubes, said tube or series of tubes being of metal or of some refractory
material. The combustion gases produced by gas oil or other fuel employed pass
before escaping either into the room to be heated or into the ordinary chimney
through the ascending and descending circulating tubes of the apparatus. The heat
given off by the products of combustion to the walls of the apparatus serves to heat
the air of the room by radiation so that the greater part of heat supplied by the fuel
is utilised.
This heating device may be a fixed one that is to say it may be permanently
secured near the source of heat or it may be movable in order to enable it to be easily
removed from the source of heat and the apparatus may be arranged so as to occupy
little space and may be placed either in the stove containing the lamp consuming
hydrocarbons or gas or behind the stove when the latter burns coal, coke wood or
similar fuel.
The accompanying drawing shows different forms of construction of a device
according to the present invention applied to a stove burning oil or gas. In this
drawing.
Fig. 1, is an oil stove provided with a circular heating device constituted by a
series of tubes and discharging the products of combustion into the place to be
heated.
Figs. 2, 2A and 2B show this device separated from the stove. Fig. 2, shows it in
vertical sectional elevation on line x y of Figure 2 which is a plan, and Figure 2" an
underside view.
Figures 3, 3 and 3B show a device in the form of a horse-shoe, also formed of a
series of tubes and discharging the products of combustion into the place to be
heated. Figure 3 is a front elevation, Figure 3 a plan and Figure 3B an underside
view.
Figures 4, 4 and 4" show a square or rectangular device consisting of a series of

page_text: tubes, but discharging the combustion products into a pipe leading out of the room
and adapted to be connected with an ordinary chimney. Figure 4 is a side elevation,
Figure 4 a top and Figure 4" a bottom view of this device.
Figures 5 and 5 show a stove on castors, containing a heat radiating apparatus
constituted by a single tube discharging the products of combustion into an ordinary
chimney. Figure 5 is a vertical sectional elevation, and Figure 5 shows in
horizontal cross section on line uv Fig. 5 the arrangement of the tubes.
Like letters indicate like parts throughout the drawings.
The radiating device formed by a series of tubes and illustrated in Figs. 2, 3 and 4,
is constituted by parallel vertical tubes a a¹ mounted in parallel hollow chambers b b¹.
The tubes are arranged either in an annular ring (Fig. 2) or as a horse-shoe (Fig. 3)
or as in Fig. 4, or in other desired arrangement. The upper chamber b is provided
in the centre of its lower surface with a depending cylindric or conical tube c
admitting the combustion gases, from the lamp or other source of heat below it,
such as a gas-flame, oil-flame or the like, so that the combustion gases from said
source of heat rise through this tube c into the chamber 6 from which they pass
through the tubes into the lower chamber b¹ and then rise into the tubes a¹ which
pass through the chamber 6 (Figs. 2 and 3) without communicating with it and
terminate above the upper plate d of the apparatus; from thence the products of
combustion, now nearly completely cooled, escape into the room.
In the device illustrated in Fig. 4 the products of combustion which have risen in
the tubes a' of the series enter into the part 2 of the chamber b, situated behind the
tube c and separated from it by an air-tight diaphragm or division e, and escape from
said compartment 62 through a tube f which can be connected with the chimney or
be conducted outside the room.
In the apparatus shown in Figs. 5 and 5 the combustion gases from the lamp 1
or other source of heat circulate in the continuous tube g which is bent upwards and
downwards so as to form a serpentine occupying little space and conducting said
gases into a chimney at d¹ or outside the room.
Such an apparatus is preferably placed into a perforated metallic or openwork
casing of a stove A either permanently or so as to be easily removed, so that its
walls heated by the combustion products serve to heat the air of the room, which air
comes in contact with the walls of its series of tubes and in this manner the fuel is
utilised in a very complete manner. The tube c is closely connected with or encircles
the chimney m of the lamp l, in case of gas or oil being used as fuel, without
necessitating an air-tight joint. When on the contrary the apparatus forms a con-
tinuation of an apparatus burning other fuel, such as coal, coke, wood and the like,
the tube c is placed in the ordinary chimney of the stove, the joint being made as
air-tight as possible, and the products of combustion are discharged into the
chimney.
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 same is to be performed I declare that what I claim is ;-
1. A heating apparatus consisting of a series of ascending and descending cireu-
lating tubes or a single serpentine tube, in which the combustion gases from a source
of heat such as a gas or oil lamp or a stove burning mineral or vegetable fuel
circulate before escaping into the room or into a chimney substantially as described.
2. A fixed or movable heating apparatus having ascending and descending tubes for
the circulation of the products of combustion from a lamp, stove or the like placed in
a perforated or openwork metallic casing surrounding the source of heat or behind an
ordinary stove said apparatus being constituted by a serpentine tube or by vertical
communicating tubes arranged in a circular, horse-shoe or other shape substantially
as described.
3. The combination and arrangement of parts forming a complete heating device
applicable for use with lamps stoves and the like substantially as described and

page_text: illustrated in Figures 1, 2, 2A 2B or in Figures 3, 3A, 3B, or in Figures 4, 4^, 4",
Figures 5, 5 of the accompanying drawings.