Improvements in Radiators or Heaters for Use with Petroleum or other Lamps or Stoves.
Year: 1896

page_text: Date of Application, 15th Jan., 1896
Complete Specification Left, 14th Oct., 1896-Accepted, 28th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in Radiators or Heaters for Use with Petroleum or
other Lamps or Stoves.
I, AXEL FREDRIK ABRAHAMSON ROXENDORFF of 73 Avenue du Bois de
Boulogne Paris in the Republic of France, Engineer, do hereby declare the nature
of this invention to be as follows:-
The purpose of this invention is to provide improved radiators or heaters to be
fitted to or upon petroleum lamps or other kinds of stoves, into which the gases of
combustion may be led from such lamps or stoves and utilized for heating the air
circulating in or about such radiators or heaters.
The improved radiator is made with a central chamber, usually cylindrical,
surrounded by a number of narrow radial chambers of the same vertical height as
the central cylinder and communicating each with the upper part of the central
chamber so that the gases of combustion which are carried from the lamp chimney
or equivalent flue from the lamp or stove into the central chamber may be diffused
through these radial narrow chambers, heating the metal plate walls thereof and
passing out at orifices at the bottom either at the outside into the room in which
the lamp is, or at the inside to the lower part of the cylindrical chamber whence a
flue may be carried to any convenient place. The spaces, triangular in plan,
between the radial chambers are enclosed on the outside by a plate which may be
corrugated and perforated. The spaces are open above and below and air passes
upwards through them being heated from the radial chambers.
In place of leading the gases to the upper part of the central chamber, they may
be led into the lower part thereof and thence into the lower part of the radial
chambers in which they are caused to follow an extended course by horizontal
partition plates extending alternately from the centre to near the circumference and
from the circumference to near the centre, such cases escaping centrally or otherwise
at the top of the radiator or passing thence into a flue.
Dated this 15th day of January 1896.
HERBERT HADDAN & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
Improvements in Radiators or Heaters for Use with Petroleum or
other Lamps or Stoves..
I, AXEL FREDRIK ABRAHAMSON ROXENDORFF, of 73 Avenue du Bois de
Boulogne, Paris in the Republic of France, Engineer, 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 purpose of this invention is to provide improved radiators or heaters to be
fitted to or upon petroleum lamps or other kinds of stoves, into which the gases of

page_text: .
combustion may be led from such lamps or stoves and utilized for heating the air
circulating in or about such radiators or heaters.
The improved radiator is made with a central chamber, usually cylindrical,
surrounded by a number of narrow radial chambers of the same vertical height as
the central cylinder and communicating each with the upper part of the central
chamber so that the gases of combustion which are carried from the lamp chimney
or equivalent flue from the lamp or stove into the central chamber may be diffused
through these radial narrow chambers, heating the metal plate walls thereof and
+passing out at orifices at the bottom either at the outside into the room in which
the lamp is, or at the inside to the lower part of the cylindrical chamber whence a
flue may be carried to any convenient place. The spaces, triangular in plan,
between the radial chambers are enclosed on the outside by a plate which may be
corrugated and perforated. The spaces are open above and below and air passes
upwards through them, being heated from the radial chainbers.
In place of leading the gases to the upper part of the entral chamber they may
be led into the lower part thereof, and thence into the lower part of the radial
chambers in which they are caused to follow an: extended course: by horizontal
partition plates extending alternately from the centre to near the circumference and
from the circumference to near the centre, such gases escaping centrally or otherwise
at the top of the radiator or passing thence into a flue.
In the annexed drawing Fig. 1 shows the apparatus in section on line C-D of
Fig. I; and Fig. II in section on line A-B of. Fig. I Figs. III and IV are.
sections on lines E-F and G-H of Fig. 1. Fig. III is a modification of
Fig. 11; Fig. V shows a modified construction of the apparatus.
The apparatus consists of a petroleum lamp, a gas-burner or any other kind of fire a,
the heated combustion gases of which enter the apparatus itself which is composed
of a central chamber b, from which the gases are distributed into. the radial
chambers c, which must be made as narrow as possible.in order that the heated gases
can circulate and give their heat to the walls which must be made of very thin
sheet metal allowing the heat to pass easily.
The plates forming the walls of these chambers may be connected by hooking
their edges together as shown in Figs. III and IV or by engaging their edges in
recesses made in the outer plate h which connects the chambers as in Fig. 1.
In this manner the gases produced by a fire of small importance are distributed
over a large surface which heats the surrounding air: that is to say, the air
surrounding the heated plates obtains of the latter its heat and rises, being renewed
from below, because the spaces g between the radial chambers c. are open above and
below but closed at the sides by the walls of the. radial chambers c and. by the
plate h, which latter may be undulated, to give more surface, and perforated to
give a more elegant and light appearance.
This plate h will be heated by the contact with the chambers c.
The combustion gases enter the space b, Fig. I, whence they are distributed into
the chambers c communicating their heat to the walls of these chambers: the gases
descend as they become cooled and leave either through the openings f in the
centre through the pipe i by which 'they can be carried to a chimney, or by
openings fl into each radial chamber; in the latter.case.the gases pass out into the
room, or place to be heated by the apparatus..
The burner gives at the same time heat and light.
Fig. V shows a modification, of the apparatus in which, the gases enter by the
lower part and are distributed into the under part of the chambers c, in which the
gases are. forced to circulate, rising' between the walls k in the chambers c and
leaving through the opening 1. whence they may be carried into a chimney or pass
into the room which is heated by the apparatus.
In this manner the air surrounding the apparatus will be heated and on rising is
renewed always from below, so that there is always a circulation of heated air.in
the room in which the apparatus is placed.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. An apparatus giving at the same time light and heat and composed of a lamp,
gas-burner or any other fire, the combustion gases of which are distributed in the
radial chambers c having relatively large surface.
2. A heating apparatus, the combustion gases of which rise into a central
space b, whence they are distributed into straight radial chambers c and descend in
proportion as they are cooled in contact with the walls of the chambers, surrounded
by the exterior air, which in this manner is heated and moves in the opposite
direction to the combustion gases which, having given their heat to the walls of the
chambers leave the apparatus in the under side or through central openings into
the tube i or through the openings f¹ on the outside of the chambers.
3. A heating apparatus in which combustion gases are distributed in the lower
part of the chambers e (Fig. V) and circulating between the walls k in the
chambers, rise and finally leave through an opening in the upper part of the
apparatus after having communicated their heat to the walls of the chambers
surrounded by the exterior air which will obtain heat from them.
4. A heating apparatus consisting of a central space b, whence radiate
narrow chambers made by hooking the plates together at each side edge, as
shown in Figs. III and IV.
Dated this 14th day of October 1896.
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C.,
Agents to the Applicant.