Improvements in Gas or Vapour Heating Stoves or Fireplaces.
Year: 1893

page_text: Date of Application, 17th Oct., 1893
Complete Specification Left, 13th July, 1894-Accepted, 8th Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in Gas or Vapour Heating Stoves or Fireplaces.
A communication from abroad by EUGENE FRANCOIS WATELET, of 19, Avenue
Ledric Rollin, in the City of Paris, in the Republic of France, Engineer.
I, JEAN BAPTISTE AUGUSTE WATELET of 39 Devonshire Street, Theobalds
Road, in the County of London, Chaser do hereby declare the nature of this
invention to be as follows:-
This invention has for its object to facilitate the heating of stoves or fireplaces
by means of the vapour or gas from hydrocarbons of the character of gasoline.
In carrying out the invention a reservoir of the gasoline of highly inflammable
character is provided and suitably fitted with stopping means which can be removed
and a connection securely made with a pipe connecting it to the store or apparatus
where the gas is to be consumed, preferably I form the connection in a portable
stove to a hollow handle and therethrough the vapour or liquid passes first through
a more or less circuitous passage or pipe to the interior chamber of the stove
where it mixes with air and passages up through orifices which form jets above,
and the gas is ignited, the kettle or other body to be heated, if so required being
supported on suitable stands. The passage of the vapour is regulated in the pipe
by a suitable screw or like valve. At first lighting another valve is opened which
admits of the escape of the fluid through a small orifice arranged so that when the
escaping vapour is lighted a jet of flame is produced which heats the pipe of fluid
supply and at once aids the formation of gas and this formation is maintained by
means of a metal tongue attached to said supply pipe and projecting into the
flame thereby carrying heat to the pipe. A small dish below the small first
heating jet retains any drip that may occur until it has passed into vapour and been
consumed.
The production of gas being once in full swing the preliminary jet supply is
turned off and the main supply is set up.
The control of the escape of fluid from the reservoir may be further effected by
a rod having screw bearings passing from the exterior through the case of the
reservoir to a valve seat adjacent to the seat of the connection to the pipe of supply
at the other end.
The tap or valve to the temporary first heating jet may have a normal tendency
to close given it by means of a spring which must be kept back during the half
minute or so that it is used so as to avoid danger of leakage of dangerous fluid
owing to carelessness.
Dated the 17th day of October 1893.
Improvements in Gas or Vapour Heating Stoves or Fireplaces.
I JEAN BAPTISTE AUGUSTE WATELET of 39 Devonshire Street Theobalds
Road in the County of London, Chaser, (communication to him from abroad by
Eugene Francois Watelet of Avenue Ledric Rollin in the City of Paris in
the Republic of France, Engineer) do hereby declare the nature of this invention

page_text: and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
The object of this invention is to facilitate the heating of stoves or fire-places by
means of the vapour or gas from hydrocarbons such as benzolene.
In carrying out this invention 1 employ a reservoir for containing the supply of
hydrocarbon fitted with a suitable filling nozzle and emptying valve, a pipe
conveying the liquid hydrocarbon to the stove or stoves fitted with convenient
connections and a stove in which the volatilization of the hydrocarbon is assisted by
heat such as described below and illustrated.
I do not however confine myself to the use of the reservoir and connections
described, but I find in practice that these are the most convenient for my purpose.
In order to make the explanation of the apparatus clear I will refer to the
accompanying drawings in which similar letters refer to similar parts throughout.
Figures 1 and 3 show an elevation and plan of one form of stove
Figure 2 is a sectional elevation with the supply pipes removed and Figure 4 is 1
a plan of same;
Figures 5 and 6 show a reservoir for the hydrocarbons while
Figures 7, 8 and 9 show forms of connections and
Figures 10 and 11 the valves for working the apparatus.
In carrying out this invention a reservoir such as that shown in Figures 5 and 6:
and lettered A is provided in which the supply of hydrocarbon is stored, it is fitted
with a filling nozzle B, having a suitable cap B' for rendering it air tight, and a
piece of fine gauze B2 at its inner end to prevent the passage of dust or dirt. A
valve seat or box C is fitted at the bottom, C¹ being the valve for regulating the
supply of liquid which is worked from the top of A by the handle C2 passing
through a suitable gland or box C³ which makes the joint.
To the outer end of C a spiral pipe R' is connected for carrying a supply of
liquid to the stove or stoves, the connection being made by means of the coupling
shown in Figures 7, 8 and 9 the case or nut R being screwed on to the screwed end
of C (or if used at the stove end, to the screwed end E of the handle E) until the a
cone R' shown more clearly in Figure 8 (and which is brazed or otherwise secured
to the supply pipe R³) comes into contact with the seating in C or E as the case
may be and forms a joint therewith.
The form of stove which I propose to describe is shown in Figures 1, 2, 3 and 4
the main frame is indicated by the letter D while E is the handle, through which a
the supply of hydrocarbon is carried by means of the connections at E, it then
passes through the pipe F which is filled with cotton wool and thus forms a filter
for the liquid and allows it to pass out at the valve shown more clearly in
Figures 10 and 11 only in the form of vapour.
The stove is of ordinary construction and the one I have chosen to illustrate the 4
invention is circular in form, it stands upon four feet and is fitted with stands or
supports H for a kettle or other vessel to rest upon when being heated. The valve
box containing the valves for starting the stove or shutting off the liquid fuel
supply and stopping it is represented by the letter G and is shown in section in
Figures 10 and 11 where a section of this supply pipe is shown at F from which s
the vapour passes down F¹ and the main supply valve I being at first closed it
passes by the passage F' Figure 11 to the subsidiary valve J (which is first opened)
and by the passage J¹ to the jet J2 where it is ignited and thus heats the supply
pipe F. The valve J is then closed either automatically by a spring or by the handle
(G Figures 1 and 3) and the valve I is opened by the handle (G2 Figures 1 and 3)
when the supply of vapour passes at once to the nozzle M inducing a supply of air
through the air-holes M' and also at N Figures 2 and 4 the vapour and air then
pass along the chamber 0 and so to the body of the stove at P, a cast iron cap D1
being secured over the body of the stove which is perforated with small holes,
through which the combined vapour and gas pass and on the top of which are
ignited by means of the flame from the subsidiary nozzle J². The rests or
supports H may be cast as part of D¹ and I find this convenient in practice.

page_text: A plate K is shown in Figures 1, 3, 10 and 11 which passes over the perforated
plate D' and is heated by the gas jets after ignition, heat is in this way
conveyed to the supply pipe F and maintained thus assisting in the vaporising
of the hydrocarbon and avoiding the necessity of continuing the jet of flame at J³.
A small dish L is fitted below the valve box G which catches any drip there may
be from the same. The small holes M¹ in the nozzle M also allow any vapour
which may have condensed in the pipes or passages to pass through the hole N and
so away from the stove as soon as the valve I is opened.
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.
с
1. In stoves heated by means of hydrocarbon vapour the use of a plate or tongue
such as K one end being situated in the flame of the gas jets, thus conveying heat
to the other end where it is attached to the pipe F which contains the hydrocarbon
and thus assists in the vaporising of the same substantially as described.
2. In stoves heated by hydrocarbon vapour the pipe F filled with cotton wool or
other similar material for absorbing the liquid and giving off vapour substantially
as described.
3. In stoves heated by means of hydrocarbon vapour the arrangement of valves
contained in the valve box G with subsidiary gas jets substantially as described.
4. In stoves heated by means of hydrocarbon vapour the employment of a spiral
supply pipe capable of being shortened or elongated as may be required.
5. In stoves heated by hydrocarbon vapour the arrangement of cone connections
substantially as described and shown in Figures 7, 8 and 9.
6. In stoves heated by hydrocarbon vapour the employment of a reservoir such
as A fitted with valve and filter as described and shown.
Dated this Thirteenth day of July 1894.
AUGUSTE WATELET.
A. H. Reed,
Agent for Applicant.