IMPROVEMENTS IN CARBURETTERS
Year: 1884

page_text: [Communicated from abroad by Edouard François Delamare-Deboutteville,
Manufacturer, and Léon Paul Charles Malandin, Foreman, both of
Fontaine-le-Bourg, Canton de Clères, Seine Inférieure, in the Republic of
France.]
33
I, JOHN HENRY JOHNSON of 47 Lincolns Inn Fields in the County of Middlesex
Gentleman do hereby declare the nature of said Invention for "IMPROVEMENTS IN
CARBURETTERS which Invention has been communicated to me from abroad by
Edouard Francois Delamare-Deboutteville Manufacturer and Leon Paul Charles
Malandin, Foreman both of Fontaine-le-Bourg, Canton de Clères, Sein Inférieure
in the Republic of France to be as follows:-
This Invention relates to improvements in the construction and arrangement of
Carburetters or apparatus for saturating or impregnating air with the gases or
vapours produced by the volatilisation or evaporation of hydrocarbons such as the
light oils produced by the distillation of naptha, petroleum and the like.
This Carburetter is used with a hydrocarbon liquid (by preference a light
petroleum) and the air which is preferably drawn through the apparatus by the
direct action of the engine becomes saturated with the hydrocarbon vapours and
forms a gas suitable for working Gas Engines. The air is preferably caused to
traverse a porous body impregnated with the hydrocarbon which is supplied to the
apparatus continuously or drop by drop in such a manner as to enable the liquid to
be entirely evaporated as fast as it is supplied without progressively impoverishing
it or lowering its degree of concentration.
The hydrocarbon which is supplied to the Carburetter from a suitable tank flows
through a cock or valve at a rate regulated in such a manner as to maintain &
constant level in the apparatus the level in the Carburetter and the rate of drip or
supply being rendered visible by means of suitable glasses. A grooved screw or
vent in the pipe between the tank and the Carburetter admits the air which is
necessary to the proper supply of liquid.
The carburetter is filled with sponges or other porous materials and is provided
with an air inlet pipe and with a pipe for the delivery of the vapour. The air

page_text: supply pipe is provided with a valve serving to prevent the improper escape of
vapour and the vapour delivery pipe is similarly provided with a valve for the
purpose of preventing any return of flame from the engine.
Wire gauze screens or partitions are provided for retaining the sponges in
position and prevent them from being sucked into the delivery pipe. The
apparatus is placed in a metal case containing warm water obtained by using
preferably the water which has been employed for cooling the engine cylinder.
When heavy oils are employed the hot air discharged from the said cylinder may
be employed in place of the water by suitably modifying the form of the case.
Dand the 10th Neh 100%

page_text: I JOHN HENRY JOHNSON of 47 Lincoln's Inn Fields in the County of Middlesex
Gentleman do hereby declare the nature of the invention for "IMPROVEMENTS IN
CARBURETTERS" which Invention has been communicated to me from abroad by
Edouard Francois Delamare-Deboutterville Manufacturer and Leon Paul Charles
Malandin Foreman both of Fontaine-le-Bourg Canton de Cleves Seine Inférieure in
the Republic of France 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 Improvements in the construction and arrangement of
carburetters or apparatus for saturating or impregnating air with the gases or
vapours produced by the volatilization or evaporation of hydrocarbons such as the
light oils produced by the distillation of naphtha petroleum and the like Tho
carburetter constructed according to this Invention may be advantageously
employed in conjunction with gas engines and is charged with a hydrocarbon
liquid by preference consisting of a light essence of petroleum Air being drawn
through the apparatus by the direct action of the engine or the like becomes
saturated with the hydrocarbon vapours and forms a substitute for the gas from
the mains usually employed in the said Engines..
The two essential features of this Invention are the following namely.
1 Obtaining a direct supply of air by the action of the engine or the like the
said air being drawn in by the direct suction of the piston and caused to traverse
a porous body impregnated with hydrocarbon so as to become saturated with the
requisite amount of vapour.
2. Regulating the drip of the hydrocarbon thereby enabling the liquid to be
entirely evaporated as fast as it is supplied without progressively impoverishing it
or lowering its degree of concentration.
And in order that the said Invention may be fully understood I shall now
proceed more particularly to describe the same and for that purpose shall refer to
the several figures on the annexed sheet of drawings the same letters of reference
indicating corresponding parts in all the figures.
Figures 1 and 2 of the accompanying drawings represent respectively a
longitudinal and a transverse section of an apparatus constructed according to
this Invention.
V is a reservoir for the hydrocarbon liquid; this liquid flows through a cock R
which is adjusted to supply it at a rate corresponding to the requirements of the
engine the flow being regulated in such a manner as to maintain a constant level
in. the apparatus.
The rate of drip or supply is rendered visible by means of a glass tube X A grooved
screw or vent Z admits the air which is necessary to the proper flow of liquid.
A coupling W connects the reservoir V with a carburetter proper Y The liquid
supplied from the reservoir V enters the carburetter Y which is filled with sponges
or other porous materials as indicated in Figure 1 Air enters the carburetter
through a valve S and after being saturated or impregnated with hydrocarbon
vapour during its passage through the carburetter Y it is delivered to the engine

page_text: through a valve S¹ The valves S and S¹ are balanced valves the former serving
to prevent the escape of vapour into the air supply passage whilst the latter
prevents any return of flame from the engine which would be liable to ignite the
mixture. A gauge glass T figure 2 communicating with the chamber of the
carburetter indicates the level of the liquid in the latter and enables the supply
cock or valve R to be so adjusted as to maintain the said level constant. Two
wire gauze screens or partitions P P¹ retain the sponges in position and prevent
them from being sucked or blown into the pipes.
The apparatus is placed in a case or trough U containing warm water preferably
obtained by using the water which has been employed for cooling the engine
cylinder. When heavy oils are employed the hot air discharged from the said
cylinder may be employed in place of the water by suitably modifying the form of
the case U.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
First. The general construction and arrangement of parts constituting the
improved carburetter or apparatus for impregnating air with hydrocarbon vapour
substantially as hereinbefore described and illustrated in the accompanying
Drawings.
Second. A Carburetter or apparatus for impregnating air with hydrocarbon
vapour so arranged that the air is drawn through the carburetter and into the engine
by the direct action of the engine piston substantially as herein before described
with reference to the accompanying Drawings.
Third. A Carburetter provided with means for regulating and rendering visible
the admission of the hydrocarbon liquid in accordance with the consumption
thereof substantially as hereinbefore described with reference to the accompanying
Drawings.