IMPROVEMENTS IN CARBURETERS
Year: 1877

page_text: LETTERS PATENT to David Egbert Bangs and Wellington Burnett, both of
the City of Boston, in the County of Suffolk, and State of Massachusetts, in
the United States of America, for the Invention of "IMPROVEMENTS IN
CARBURETERS."
Sealed the 10th May 1878, and dated the 12th November 1877.
PROVISIONAL SPECIFICATION left by the said David Egbert Bangs and
Wellington Burnett at the Office of the Commissioners of Patents on the 12th
November 1877.
DAVID EGBERT BANGS and WELLINGTON BURNETT, both of the City of Boston, in
the County of Suffolk, and State of Massachusetts, in the United States of America..
IMPROVEMENTS IN CARBURETERS."
"
The object of the Invention is,―
Firstly. To device means for replenishing the carbureting tank without the loss
of gas or the admission of air.
Secondly. To provide means for determining the quantity of hydrocarbon oils in
the carbureter.
Thirdly. To provide means whereby the delivery of oils to the carbureter may be
automatically attained.
And, lastly. To improve the apparatus generally.
In the accompanying Sheet of Drawings,―
Figure 1 is a vertical central section.
Figure 2, a détached sectional view of valve and fixtures.
Figure 3 is a plan view of the rose and fixtures for the discharge of naphtha,
and Figure 4 is a detail view of the float rod, showing its attachment to the lever.
A is the oil receiver; B, the carbureting chamber, separated therefrom by wall a.
The former is provided with a condensing chamber C, filled with gravel, soapstone,
or like material, and both are surrounded by a casing filled with some non-
conducting material, such as asbestos. The carbureting chamber is provided with

page_text: a labyrinthine passage for the gas or air from the induct pipe on its way to a
reticulated opening into the condensing chamber, which latter is provided with an
educt leading into the main, the enriched gas being deprived of its excess in carbon,
so that the deposit of the products of condensation in the mains and supply pipes
is effectually obviated.
E is a tube extending above and below the diaphragm a, and open at both ends.
The lower end of this tube has the rose b while its upper end opens into pipe b¹,
having aperture or apertures c, and surrounded by the reticulated cylinder c'.
The upper end of tube E is conical, and E¹ is a leather shod plunger suspended
into E from the vibrating lever d pivoted in d¹, which when free closes tube E.
One end of lever d is bifurcated, and straddles a tube E². Within tube E² is a
rod 2 carrying a float F and cross head F', projecting through slots e in tube E³,
the rod being connected with the forked end of lever d by means of rods e².
When the carbureting vat is full the float rises and lowers tlie plunger upon the
end of .tube E, to cut off the flow of oil from the reservoir. As the oil is vaporized
the float falls, and raises the plunger to open pipe E and admit more oil. The
rose bis hemispherical, and has discharge openings f³, scattering the oil on the
under side of diaphragm a. The oil not vaporized while thus projected in spray
falls upon layers G, of cloth, lamp wick, or similar material, and dripping through,
may be vaporized as fast as necessary. These layers are about one-half ("/2) inch
apart, and are supported upon frames so that the gas or air enriched may pass
through them. The passage of the naphtha from the reservoir to the carbureting
chamber creates a vacuum in the former which would in time interrupt the flow
of oil; to avoid this the vacuum is filled by a fresh supply of oil without the
admission of air into or the escape of gas from the reservoir by means of the two-
way cock H and induct nozzles g, g³, the latter being connected with a two-way
cock I in filling vessel J, two independent nozzles h, h³, being provided for the
purpose. These are extended in passages i, i, into the said vessel, the former
terminating just inside of the same. Passage i is provided with a pipe K, extending
nearly to the top of vessel J.
When both cocks are open the oil will flow through i, h¹, and pipe p' into the
reservoir to fill up the vacuum, while the air or vapors will flow up f and g
through h and pipe p, and discharged into the upper part of vessel J to establish
the equilibrium between the reservoir and said vessel J.
To determine the quantity of oil in A we employ a pipe L, within which is
located a movable rod 7, carrying a float m, and upon its opposite end a ball n,
having its seat in pipe L. If the oil is low the float will fall to lower the ball,
and the reverse will take place when the oil is high to thrust the rod out of upper
end of pipe L.
When not in use the upper end of pipe L is covered by a screw cap o.

page_text: Firstly. To device means for replenishing the carbureting tank without loss of
gas or admission thereto of air.
Secondly. To provide means for determining the quantity of hydrocarbon oil in
the carbureter.
Thirdly. To provide means whereby the delivery of oils to the carbureter may be
automatically attained.
And, finally. To improve the apparatus generally.
In the accompanying Drawings,
Figure 1 is a representation of a vertical central section of my improved
carbureter.
Figure 2 is a detached sectional view of valve and parts connected therewith.
Figure 3 is a plan view of the rose for the discharge of naphtha, and Figure 4 is
a detail view of the float rod and its attachments.
4
A represents the oil reservoir, and B the carbureting chamber, separated there-
from by a division wall a. The former is provided with a close annular condensing
chamber C, filled with gravel, soapstone, or other suitable material, and both the
reservoir and its casing and the carbureting tank are surrounded by a third casing
containing asbestus or other suitable non-conducting materials. This latter casing
is lettered D, and the fire-proof material D¹. The carbureting chamber will be
provided with a labyrinthine passage, through which the gas or air will pass on its
way from the induct pipe to a reticulated opening leading into the condensing
chamber. This latter is provided with an educt leading into the main; and the
enriched gas is deprived of its excess of carbon in the said condenser, so that the
deposit of the products of condensation in the mains and supply pipes is effectually
obviated.
E is a metallic tube extending above and below diaphragm a, and is open at
both ends. The lower end of tube E carries a rose b, while its upper end above
diaphragm a opens into a metallic pipe of larger bore b', which latter is provided
with a port or ports c, and is surrounded by a reticulated cylinder c¹.. When the
upper end of tube E is open the oil in reservoir A. passes through E into the
carbureter below, through apertures c, all foreign matter being excluded by the
reticulated cylinder c¹ above mentioned. Tube E is opened and closed as follows:-
Its upper end is made conical, and a leather shod plunger E¹ is passed into the
pipe 6, which plunger is suspended from or pivoted to the weight end of a
vibrating lever d, having its fulcrum in an upright post d', and when free accurately.
closes the tube E. The power end of this lever is bifurcated and straddles a
metallic tube E³, extending through the said diaphragm; a rod d² located within
tube E2 carries at its lower end within the carbureting chamber a float F, and upon
its upper end a cross head F', which latter projects through longitudinal slots e
formed in opposite sides of tube E2, and the ends of the cross head F¹ are connected
by rods e to the forked end of lever d.
When the carbureting vat is adequately full the float will rise and lower the
plunger E¹ upon the conical end of the tube E, effectively closing it and cutting off
the flow of oil from the reservoir into the carbureter. As the oil in the latter is
carried off by evaporization the float will fall and the plunger be raised, thus re-
opening the communicating pipe E, and allowing the oil to flow from the reservoir
to the carbureter. The rose b above mentioned is hemispherical in its general

page_text: shape, and its upper plane surface is provided with oblique diverging discharging
orifices, through which the oil will be discharged scatteringly against the under
side of the diaphragm a. Such of the oil as is not vaporized, while thus sprinkled
or divided, falls upon spaced layers G, of cloth, lamp wick, or other similar material,
dripping through which it will be vaporized as fast as desired or may be required.
These layers of cloth are about one-half (1/2) inch apart, and are supported on a
frame or other like device in such a manner that the gas or air to be enriched passes
uninterruptedly through it on its way to the reticulated opening leading into the
condensing chamber. As the naphtha passes out of the reservoir into the car-
bureting chamber a partial vacuum is created in the former, which in time would
interrupt the flow of oil therefrom. This vacuum is filled by a fresh supply of oil
as follows, without admitting air into the reservoir or allowing gas to escape:-The
reservoir A is provided with a two-way cock H, having two discharge passages
ff, and two induct nozzles g, g'. These latter are connected by means of bent
pipes of any suitable material with a second two-way cock I in a filling vessel J,
two separate and independent nozzles h, h', being provided for the purpose. These
are extended in distinct passages i, i, into the said vessel, the former terminating
just inside of the same. Passage ¹ is provided inside of vessel J, with a pipe K
extending nearly to the top of said vessel J.
When both cocks H, I, are open, the oil will flow through i, nozzle h¹, pipe p¹,
and its connecting ducts in the lower cock H into the reservoir, filling up the
vacuum in the same, while the vapors or air in the upper part of the reservoir will
flow through passage fand nozzle g of cock H, thence through pipe p, nozzle h,
and passage i¹ of the cock I into pipe K to the surface of the oil in vessel J, estab-
lishing an equilibrium between the latter and the reservoir.
To determine the quantity of oil in the reservoir A we employ the following
means:L is a metallic pipe projecting through the head of the reservoir, said pipe
containing an endwise movable rod 1, carrying a float m at its lower extremity and
a ball n upon its upper extremity, which ball has its seat in a recess at the upper
extremity of said pipe. If the oil be low the float will fall and lower the ball pro-
portionately; but if it be high the float will rise and carry the ball with it, causing
it to project out of the upper end of the pipe.
When not in use the upper extremity of the tell-tale pipe will be covered with
a screw cap O.
The oil having been fed in sufficient quantity to the reservoir one or both of the
cocks may be turned off. The pipes may then be disconnected, if it be deemed
necessary, without loss of gas from the reservoir or of oil from the filling vessel.
In practice the lower two-way cock and the tell-tale are enclosed within a
chamber N, when not in use, and the chamber being partly filled with water the
said devices will be effectually sealed.
Having now described our Invention, and the manner in which the same is to be
carried into effect, we would have it understood, that we do not wish to limit
ourselves to the exact details as shown and described, as the same may be varied
without (departing from the peculiar nature of this Invention, but what we
claim is,―
Firstly. The combination with a carbureting chamber and an oil reservoir
arranged above the same, of the connecting pipe E, having rose b upon its lower
end and a valve seat at its upper end, the exterior perforated guide pipe b₁, the
reticulated guard c¹ encircling said pipe, the plunger E¹ working in pipe b', the
vibrating lever d, a float F, rod d connecting said lever and float, and a guide
tube E2 in which said rod reciprocates, substantially as specified.
Secondly. The combination with the feed pipe E, having one end in the reservoir
and the other in the carbureter, of the shield pipe b', having apertures c, the encircling
reticulated guard c¹, the rose b, and the plunger E, substantially as specified.
Thirdly. The combination with an oil reservoir, a carbureting chamber, separated
by a diaphragm therefrom, and a pipe extending through said diaphragm, of a rose
applied upon the lower end of said pipe and perforated on its upper side, whereby

page_text: the oil is discharged scatteringly against the said diaphragm, substantially as
specified.
Fourthly. The combination with an oil reservoir, a carbureting chamber below
it, a separating diaphragm, a pipe extending through the said diaphragm, and an
inverted rose upon the lower end of said pipe, of an open-ended removable frame,
and the spaced independent horizontal evaporating layers supported by said frame,
substantially as specified.
Fifthly. The oil reservoir A having a two-way cock and separate induct and
exit orifices g, g², and f, f¹, of the filling tank J, having a two-way cock I with like
orifices, the tube K, extending to the top of said tank, and the connecting pipes
P, p¹, substantially as specified.
In witness that we claim the foregoing, we, the said David Egbert Bangs and
Wellington Burnett, have hereunto set our hands and seals, this Twenty-
sixth day of April, in the year of our Lord One thousand eight hundred
and seventy-eight.
DAVID EGBERT BANGS. (L.S.)
WELLINGTON BURNETT. (L.S.)