Improvements in Apparatus for Carburetting Air.
Year: 1897

page_text: Date of Application, 20th Apr., 1897-Accepted, 5th June, 1897
COMPLETE SPECIFICATION.
Improvements in Apparatus for Carburetting Air.
We, GEORGE BUCK, of 18, Hogarth Place, Earl's Court, in the County of
London, Engineer, and EDWARD STRONG TORREY, of 15, Britannia Street,
King's Cross, in the County of London, Manufacturer, 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 carburetting air and has for its object to
provide a carburettor which shall occupy less space and be more efficient and safe
than carburettors as ordinarily constructed, the air at the same time being more
uniformly carburetted than is usually the case.
According to our invention we form the apparatus of two air-tight chambers
comprising respectively the petroleum or other hydro-carbon container and the
carburetting chamber. The two chambers are connected together by a horizontal
tube or pipe at their lower ends and also by an air tube or. pipe which passes from
near the bottom of the carburetting chamber upwards through the said chamber
and opens into the top of the petroleum container.
The carburetting chamber is provided with a number of tapes or wicks of
absorbent material which hang down to the bottom of the same and which
An air inlet,
alternately leave a space at the opposite sides of the chamber.
controlled by a valve, and an air outlet also controlled by a valve are provided and
in cases where the apparatus is to be employed for carburetting air to be used in
the formation of an explosive mixture for internal combustion engines the two
chambers are supplemented by a third or storage chamber into which the
carburetted air passes and from which it is drawn through a regulating cock.
air inlet valve is also provided which can be adjusted to regulate the quantity of
air admitted to the carburetted air to form the explosive mixture.
An
To enable our invention to be fully understood we will describe it by reference
to the accompanying drawing, in which :-
Figure 1 is a sectional plan of apparatus made according to our invention and
designed to be employed in conjunction with an explosion engine:
Figure 2 is a longitudinal vertical section on the line 2-2 Figure 1; and,
Figure 3 is a view of a detail drawn to a larger scale than Figures 1 and 2.
a is the chamber for containing the petroleum or other liquid hydro-carbon and
bis a filling plug for the same.. c is the carburetting chamber, & the horizontal
pipe connecting the chambers a and c at their lower ends the said pipe being provided
with a cock e, aud is the pipe which passes from near the bottom of the chamber c
upwards through the said chamber and opens into the top of the chamber a.
9, 9 are the tapes or wicks which hang from the top of the carburetting chamber c
to the bottom of the same and which are also connected alternately to the opposite
sides of the said chamber so as to leave a space alternately on either side of the
chamber and form a baffle arrangement for the air passing through the same.
his the air inlet pipe to the carburetting chamber, the said pipe having the
controlling cock i, and j is the outlet for the carburetted air from the chamber c,
the said outlet opening into the chamber k from which it is drawn, by the suction
action of the motor piston, through the pipe / which is provided with the cock m.
n is the regulating valve through which air enters to mix with the carburetted
air to form the explosive mixture as the said carburetted air passes to the motor.
The said valve has a conical opening o and a tapered screw pin p by means of which
the area of the opening o can be varied as desired.
In practice we find it advantageous to provide the filling plug b air inlet pipe /

page_text: and the carburetted air outlet pipe with chambers a containing gauze for guarding
against the risk of explosion. One of these chambers is shewn in section in
Figure 3 and consists of a series of gauze discs r held in a cylindrical casing 9 and
separated by distance pieces s.
With this construction of apparatus it will be obvious that when the cock i has
been turned so as to allow air to flow into the carburetting chamber c and the
container a has been filled through the filling plug 6 with petroleum, a quantity of
the said petroleum will flow, when the cock e is opened, through the pipe dinto
the chamber c until the level of the petroleum in the said chamber c has risen
sufficiently to cover the lower opening of the pipe when the flow ceases as no air
can now pass through the pipe f into the chamber a. The tapes or wicks g, g
absorb the petroleum and the air entering through the inlet pipe / passes through
the carburetting chamber c in a zig-zag course as shewn by the arrows in Figure 1
so as to come into contact with a large surface of petroleum. The air thus
carburetted then passes out through the outlet into the chamber k and thence
into the pipe through which it passes drawing in air through the valve n in its
passage to the engine. A fresh supply of petroleum flows into the chamber c
through the pipe d when the air flowing through the chamber c has absorbed a
sufficient quantity of petroleum to have lowered the level of the liquid in the said
carburetting chamber below the outlet of the tube into the said chamber.
will therefore be obvious that the supply of the hydro-carbon to the carburetting
chamber is regulated by the consumption and also that by reason of the
arrangement of tapes our apparatus occupies much less space than ordinary
carburetting apparatus of the same delivery. It will also be clear that as the
hydro-carbon is contained in an air-tight chamber which can be shut off when
the apparatus is not in use, our apparatus is practically free from danger.
C
It
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what
we claim is :-
1. Apparatus for carburetting air consisting of an air-tight chamber for
containing petroleum or other hydro-carbon and of a carburetting chamber the
bottom of which is in communication with the bottom of the container and also
with the top of the container in such a manner that the petroleum is maintained
in the carburetting chamber at a predetermined level, substantially as, and for the
purpose, herein before described.
2. Apparatus for carburetting air such apparatus consisting of an air-tight
container for the petroleum or other hydro-carbon and of a carburetting chamber
the bottom of which is in communication with the bottom and also with the top of
the container and which is provided with absorbent tapes or wicks attached
alternately to opposite sides of the chamber and dipping down into the liquid in
the said chamber, substantially as, and for the purpose, herein before described.
3. The combination with apparatus of the kind described in Claim 2 of a third
chamber for receiving the carburetted air and of a regulating valve fitted to the
outlet pipe from the said chamber through which valve air can enter to mix with
the carburetted air and form an explosive mixture, substantially as hereinbefore
described.
4. The combination and arrangement of parts forming the improved apparatus
for carburetting air herein before described and illustrated in the accompanying
drawing.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.