IM- PROVEMENTS IN CARBURETTERS
Year: 1866

page_text: LETTERS PATENT to William Clark, of 53, Chancery Lane, in the County
of Middlesex, Engineer and Patent Agent, for the Invention of "IM-
PROVEMENTS IN CARBURETTERS."--A communication from abroad by Francis
Stebbins Pease, of Buffalo, in the County of Erie, and State of New
York, in the United States of America.
Sealed the 30th April 1867, and dated the 15th December 1866.
PROVISIONAL SPECIFICATION left by the said William Clark at the
Office of the Commissioners of Patents, with his Petition, on the 15th
December 1866.
I, WILLIAM CLARK, of 53, Chancery Lane, in the County of Middlesex,
Engineer and Patent Agent, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN CARBURETTERS," to be as follows:-
This improvement is adapted for positions and conditions where it is not
convenient to obtain a blast of air through the carburetter by the constant
movement of machinery, and it consists in the provision in connection with a
carburetting chamber and hydrocarbon reservoir of a strong chamber to be
filled with compressed air, and the air pump may be a permanent fixture upon
it, or the air is forced into the cylinder by stationary machinery. It is par-
ticularly adapted for locomotive head lights, railroad.and street carriages, and

page_text: vebicles, dwellings, and lighthouses, and also for generating heat. The
annexed Drawing shows a vertical central section of the apparatus.
In the Drawing A is an air pump for the condensation of air into the
strong chamber B; it passes thence by the pipe C to the rose D in the car-
buretting chamber E, ascending into the deflector F, which is an inverted
vessel with notches on its lower edge. This deflector I may make of different
forms. In place of the rose D the pipe C may be in the form of a coil at
the bottom of the carburetting chamber, the coil being perforated with holes
through which the air escapes. The reflector should in this case be an
annular plate secured to the wall of the chamber E, the inner corrugated
edge of which is lower than the outer edge. As the entering air fills the
leflector it issues from thence at the orifices made by the serrations in the
edge thereof, and ascends through the perforated or reticulated plate G, which
serves to mix the passing air and gas and render it more homogeneous in
quality; the diaphragm G also prevents the splashing of the liquid when the
carburetter is placed upon a body in motion, as upon a locomotive or street
carriage, or otherwise. The gas passes from the generator by the pipe H to
the burner, which is represented in the Drawing as a head light with a
reflector. The bydrocarbon fluid, which may be gasoline, or any sufficiently
light and vaporizable hydrocarbon is supplied to the generator by the pipe I
from the reservoir J, which is filled by the opening K. The air pump shown
in the Drawing is the ordinary single-acting pump with a valve in the plunger
and one in the bottom of the cylinder, each opening downwards, and the com-
munication with the compressed air reservoir is maintained or intercepted by
the stop-cock L.
In a modified and inverted form of air pump I use water as a packing
above a diaphragm near the top, the piston elevating a body of air at each
upward stroke, which passes through the small openings and valves in the
diaphragm, and up through the water lying thereon, the valves closing upon
the diaphragm when the pressure below is removed; by this means the air is
prevented from returning, as the water forms a joint upon the valves on the
diaphragm, therefore the parts are not obliged to be air-tight. The piston
head may be covered similarly with a small quantity of water. A check
valve 9 should be arranged on the pipe C to prevent the liquid from returning
to the reservoir B, as shown in the Drawing.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Clark in the Great Seal Patent Office on the 14th
June 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
CLARK, of 53, Chancery Lane, in the County of Middlesex, Engineer and
Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of December, in the year of our
Lord One thousand eight hundred and sixty-six, in the thirtieth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said William Clark, Her special licence. that I, the said William
Clark, my executors, administrators, and assigns, or such others as I, the
said William Clark, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
CARBURETTERS," a communication to me from abroad by Francis Stebbins
Pease, of Buffalo, in the County of Erie, and State of New York, in the
United States of America, upon the condition (amongst others) that I, the
said William Clark, my exécutors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately after the
date of the said Letters Patent.
NOW KNOW YE, that I, the said William Clark, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement, reference being had to the Sheet of Drawings hereunto annexed,
and to the letters and figures marked thereon (that is to say) :-
This improvement is adapted for positions and conditions where it is not
convenient to obtain a blast of air through the carburetter by the constant
movement of machinery, and it consists in the provision in connection with a
carburetting chamber and hydrocarbon reservoir of a strong chamber to be
filled with compressed air, and the air pump may be a permanent fixture upon
it; or the air is forced into the cylinder by stationary machinery. It is par-

page_text: ticularly adapted for locomotive head lights, railroad and street carriages and
coaches, dwellings, and lighthouses, and also for generating heat.
Figure 1 of the Drawings is a vertical central section of this apparatus;
Figure 2 is a vertical central section of a modified form of air pump; Figures
3 and 4 are vertical central sections of modified forms of deflectors in the
carburetting chamber.
A is an air pump for the condensation of air into the strong chamber B;
it passes thence by the pipe C to the rose D in the carburetting chamber E,
ascending into the deflector F, which is an inverted vessel with notches on its
lower edge. In place of the rose D the pipe C may be coiled at the bottom
of the carburetting chamber E, as shown in Figure 4, the coil being perforated
with holes, through which the air escapes. The reflector may also be made
ns shown in Figure 4; it is an annular plate which is secured to the wall of
the chamber E, the inner corrugated edge of which is lower than the outer
edge. As the entering air fills the deflector it issues from thence at the
orifices made by the serrations in the edge thereof, and ascends through the
perforated or reticulated plate G, which serves to mix the passing air and gas
and render it more homogeneous in quality; the diaphragm G also prevents
the swashing of the liquid when the carburetter is placed upon a body in
motion, as upon a locomotive or street carriage for instance. The gas passes
from the generator by the pipe H to the burner, which is represented in
Figure 1 as a head light with a reflector. The hydrocarbon fluid, which may
be gasoline, or any sufficiently light and vaporizable hydrocarbon is supplied
to the generator by the pipe I from the reservoir J, which is filled by the
opening K. The carburetting chambers shown in Figures 1 and 3 are sub-
stantially similar, the difference being mainly in the form of the deflector; in
each case the bottom of the chamber is dished with the rose in the centre.
The air pump shown in Figure 1 is the ordinary single-acting pump with a
valve in the plunger and one in the bottom of the cylinder, each opening
downwards, and the communication with the compressed air reservoir is
maintained or intercepted by the stop-cock L.
In Figure 2 a modified form of air pump is shown, in which water is used
as a packing above the diaphragm M, the piston elevating a body of air at
each upward stroke which passes through the small openings in the dia-
phragm M and up through the water lying thereon, the valves closing upon the
diaphragm when the pressure below is removed; by this means the air is
prevented from returning, as the water forms a joint upon the valves on the
diaphragm, and the parts are not obliged to be air-tight.
may be covered similarly with a small quantity of water.
The piston head
A check valve g

page_text: should be arranged on the pipe C to prevent the liquid from returning to the
reservoir B, as shown in Figures 1 and 3.
Having described the nature of the Invention, and the manner of performing
the same, I declare that what I claim as the Invention to be protected by
the herein-before in part recited Letters Patent is,-
1st, the combination with a carburetting chamber of a strong reservoir for
containing a supply of compressed air, substantially as and for the purpose
described.
2ndly, the mode of operating the air pump with a water packing above the
valves, substantially as described.
3rdly, the combination of the reflector F, the edges of which are corrugated
with the carburetter, substantially as and for the purposes herein shown and
described.
4thly, the combination of the rose or coil D with the deflector F and
perforated plate G, substantially as and for the purposes herein shown and
described.
5thly, the application of the above-described carburetter to railroad head
lights, carriages, waggons, as well as to dwelling and lighthouses.
6thly, the valve G in combination with the pipe C, reservoir B, and car-
buretting chamber E, substantially as and for the purpose herein shown and
described.
In witness whereof, I, the said William Clark, have hereunto set my
hand and seal, this Fourteenth day of June, in the year of our Lord
One thousand eight hundred and sixty-seven.
Witness,
A. M. CLARK,
53, Chancery Lane,
London.
W. CLARK. (L.S.)