Year: 1896

page_text: Date of Application, 24th July, 1896-Accepted, 12th Sept., 1896
Fig. 3 is a section on line 3-3 of Fig. 1.
Fig. 4 is a detail in vertical longitudinal section of a part of the apparatus
represented in Fig. 1, showing a variation of the means used for preventing the
return of the hydrocarbon arriving in the apparatus.
Fig. 5 is a transversal section on line 5-5 of Fig. 4.
The apparatus is composed essentially of a frame a of any convenient form or
arrangement supporting a vaporization chamber b having preferably the form of a
horizontal cylinder.
This chamber is connected hermetically by means of a screw cap nut c, with a
tube d of small diameter rolled helicoidally for a certain length and which brings
to the apparatus the liquid hydrocarbon contained in a convenient receiver (not
represented in the drawing) arranged at a level superior to that of the chamber b
in order that the liquid may arrive at the said chamber under a small pressure.
The tube ends at the extremity of a channel e bored in the metal of the
vaporizor and ending in a second channel bored perpendicularly to the first and
from which issues a third channel y parallel to the channel e and ending at the
interior of the cylindrical chamber b.
The channel is closed by a screw 6' which traverses a stuffing box i and carries
exteriorly a milled head by means of which it can be turned in order to close or to
open more or less the passage f. The chamber b is closed at its extremity which
is connected with the tube d by a screw plug j forming a tight joint and in this
chamber is arranged behind this plug and opposite the orifice of the channel ga
metallic ring k upon the exterior surface of which is formed an endless screw
thread. This ring is preferably turned of a diameter a little superior to the
interior diameter of its bed in the chamber b; when it is finished it is cut or slotted
longitudinally in order to reduce its diameter by closing it a little and to introduce
it into its bed to the walls of which it is then applied tightly by means of its
elasticity.

page_text: The other extremity of the chamber is closed in a tight manner by a cap
which constitutes the burner and in which is a circular screw threaded socket
which receives the screw threaded end of the tube b. There are also bored in
this cap two parallel passages m m connected at one of their extremities by a
transversal channel a and which end at their other extremities in the chamber b.
In the centre of the exterior surface of the cap which is surrounded by a crown
or flange o is screwed a small screw threaded plug p provided along its axis and
its whole length with a hole which communicates with the channel a and is reduced
to the diameter of a capillary tube before arriving at the exterior surface of the
plug p.
Upon the crown o is adjusted a tube g in the wall of which are provided.
openings for the admission of air and on the interior of which is arranged a
converging cone s.
Upon the support a and under the chamber b is arranged a metallic cup tin
which is placed a wick and which forms a kind of lamp or warmer which operates
as will be seen hereinafter.
The operation of the apparatus is as follows:-
The liquid hydrocarbon receiver being filled, some drops of essence of alcohol
are poured in the cup t and lighted.
When the flame produced has heated the chamber b the channel g is opened by
unscrewing the screw . The hydrocarbon which arrives through the tube d and
the channel e then descends through the channels and g, arrives in the small screw
threads of the ring k, follows the hollow of this screw thread and oozes into the
chamber which is already strongly heated and in which it is at once transformed
into vapor. The vapor thus formed acquires soon a relatively strong pressure for
the ring and its capillary threads hinder its return into the chaunels gfe and the
tube d, and the said vapour is driven through the capillary orifice of the plug p
into which it passes at a great velocity carrying with it a large quantity of air
which it draws through the orifices and forms with this air a mixture which is
lighted by the simple aspiration of the flames not yet extinguished in the cup 1.
When the combustion is completed the flames of the burner have lost all
illuminating power, the carbon being completely consumed, they develop an
elevated temperature which can attain at the centre of the flame 2000 to
2200 degrees Centigrade. By means of the arrangement of the cone which
reduces the diameter of the tube 7, the latter is rapidly brought to red heat as
well as the anterior part of the burner the heat of which is transmitted to the
chamber b. The lamp t is then extinguished aud the vaporization is continued
under the action of the elevated temperature developed by the operation of the
apparatus itself and transmitted by the burner to the vaporization chamber b. In
order to extinguish the apparatus it is sufficient to close the tap &; the blow pipe
is then isolated from its receiver and is extinguished for want of combustible fuel.
It is therefore seen that the operation of the apparatus is continued automatically
after the lighting as long as the receiver is provided with hydrocarbon. The
applications of this apparatus for heating small steam boilers, baths, kitchen
stoves, as well as for the soldering of pieces of tubes, and the like, and other
purposes, are numerous and various.
In Figs. 4 and 5 is represented a variation of the construction in which the screw
threaded ring k of the previously described arrangement is suppressed and replaced
by a regulating arrangement constituted of a series of Belleville washers u upon
the periphery of which are provided notches which do nut coincide one with the
other in adjacent washers. The hydrocarbon arriving by passage g is then obliged
to follow the spaces left between the washers u by passing from one space to the
other successively through the notches v. A screw traversing the plug j and the
extremity of which bears upon the last washer of the series, allows the reduction
or augmentation at pleasure of the dimension of the passage offered to the
hydrocarbon between the washers and furnishes thus the means for regulating as
desired the oozing of the hydrocarbon to the chamber b.

page_text: Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. A blow pipe burner constructed to transform into vapour essences and other
hydrocarbons and to burn their vapours by developing a great heat essentially by
means of a vaporization chamber b connected on one side with a tube d for bringing
the combustible liquid from a convenient receiver situated higher than the apparatus
and on the other side with a burner provided with a tube 7 in the interior of which
is arranged a cones; the said chamber b being heated for lighting the burner by a
lamp t situated under it and the vaporization being continued by the action of the
intense heat transmitted to the said chamber by the burner.
2. In the apparatus above claimed the screw threaded ring k adapted to permit
the liquid combustible to ooze into the interior of the vaporization chamber as well
as to prevent the return of the said liquid into the delivery pipe under the action
of the relatively cousiderable pressure in the vaporization chamber.
3. In the device described in Claim 1, in the interior of the vaporization chamber,
a series of Belleville washers provided with peripheral notches and a screw for
regulating their tension for the purpose set forth.
4. The combination with the apparatus described in Claim 1, of a tube d of small
diameter rolled helically upon a certain part of its length for connecting the
apparatus with the receiver containing the liquid combustible situated at a higher
level to that of the apparatus.
5. In the apparatus described in Claim 1, the combination of the passage efg
through which the liquid combustible arrives in the vaporization chamber and of
the tap by means of which the arrival of this liquid is controlled.
Deted this 94th day of July 1896.
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C., Agents for Applicants.