Improvements in Apparatus for Vaporizing Hydrocarbons or other Volatile Liquids, and Mixing the Vapour with Air for Use in Motors.
Year: 1895

page_text: Date of Application, 27th Aug., 1895-Accepted, 9th Nov., 1895
Improvements in Apparatus for Vaporizing Hydrocarbons or other
Volatile Liquids, and Mixing the Vapour with Air for Use in
Motors.
I BENJAMIN WEBSTER GRIST, Gentleman, corner of Lancaster Avenue
and 50th Street, Philadelphia, Pennsylvania U.S.A. 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 :-
My present invention relates to gas motors, has especial reference to means for
vaporizing hydrocarbons or other volatile liquids for use as an explosive agent in
such motors and consists in certain improvements in construction whereby the
liquid is spread into a thin sheet and air in comminuted streams passed through the
liquid and thoroughly saturated therewith and the excess of liquid returned to
the source of supply as will be fully disclosed in the following Specification and
claims.
In the accompanying drawings which form part of this Specification :-
Fig. 1 represents a vertical transverse section and
Fig. 2 a top plan view.
Reference being had to the drawings and the letters thereon. A indicates the
lower section of the two part outer casing which is provided with a concentric
tubular nozzle a which extends above and below the bottom thereof, the outer end
of which is provided with a screw thread by which it may be connected to
a suitable air supply tube and the inner end is flaring to direct the air outward
toward the deflector and around the upper extension of the nozzle in an annular
chamber c to receive the excess of liquid supplied to the vaporizer and which is not
taken up by the air supplied thereto, and said excess of liquid is discharged from
the chamber e through passage d and returned to the pump which supplies the
liquid or to a suitable reservoir. The section A is also provided with an external
annular flange e and an internal concentric seat f.
The upper section B of the casing is provided with an annular flange g by which
it is secured to the flange e of the section A by suitable bolts h, with a packing
gasket i interposed between the flanges and near the upper end is an annular
projection k in which are ports or passages and upon the said projection rests an
annular cut off valve m which is provided with ports or passages n which register
with the ports l. The valve m is axially movable upon its seat on the projection k
to regulate the quantity of air admitted to the vaporizer.
Above and resting upon the upper surface of the valve m is an annular check
valve o which is enclosed in a chamber p formed by the annular cover which
engages a screw-thread r on the outside of the section B and the valve o is held to
its seat by springs s to prevent the escape of carburetted air, and from the annular
chamber p air is admitted to the vaporizing chamber C through ports or passages t
to mingle with the air supplied through nozzle a and its valve D.
The upper end of the section B is provided with a screw thread u to connect the
vaporizer to the induction pipe of a gas motor.
Within the casing is a foraminous cone E secured in concentric position by
a flange v secured between the flanges e and g to spread the liquid into a thin sheet
or film and comminute the air in its passage through the fine perforations in the
cone so as to present fine or thin streams of air to the liquid to produce rapid

page_text: carburetting of the air, and within the cone E is a conical deflector F which extends
down below the upper or terminal end of the nozzle a and prevents liquid entering
the nozzle after passing through the perforations in the cone E and directs the
liquid into the chamber c. The deflector is provided with a transverse bar w with
the boss of which the stem of the valve D engages and limits the upward
movement of the valve.
Liquid is supplied to the vaporizers by a suitable pump not shown or by any
suitable means used for the purpose through tube G which terminates above and
adjacent to the cone and directs the liquid upon the apex of the cone.
The main air valve D and the supplemental air valve o are opened by the
induction stroke of the piston of the gas motor and closes automatically, the former
by gravity and the latter by springs s.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A device for vaporizing volatile liquids, comprising an outer casing, a
foraminous cone within the casing and a liquid supply above said cone, in
combination with an air supply below the cone.
2. A device for vaporizing volatile liquids, comprising an outer casing, a
foraminous cone within the casing, a deflector within the cone and a liquid
supply above the cone, in combination with an air supply below the cone and
concentric thereto.
3. A device for vaporizing volatile liquids, comprising an outer casing, a
foraminous cone within the casing and a liquid supply above the cone, in
combination with an air supply below the cone and provided with a check valve.
4. A device for vaporizing volatile liquids comprising an outer casing constructed
to be connected at its upper end with the induction pipe of a gas motor and having
a passage through the bottom of the casing to supply air, and a valve controlling
said passage, in combination with a foraminous cone within the casing and
above the air supply and an oil supply above and adjacent to the apex of
said cone.
5. A device for vaporizing volatile liquids, comprising an outer casing provided
with means for connecting it with the induction pipe of a gas motor, an air supply
in the bottom of the casing and having a flaring discharge end, a valve for
controlling said supply, an annular liquid chamber and a passage leading therefrom,
in combination with a liquid supply, means for spreading the liquid into a thin
sheet and diffusing the air through the liquid.
6. A device for vaporizing volatile liquids, comprising an outer casing, a
foraminous cone within the casing, an air supply below the cone and provided with
a check valve and a deflector within the cone and having a guide and guard for the
check valve, in combination with a liquid supply above the cone.
7. A. device for vaporizing volatile liquids, comprising an outer casing, means for
supplying liquid and means for spreading the liquid into a thin sheet and com-
minuting air, in combination with a main air supply at the lower end of the casing
and a supplemental air supply near the upper end thereof.
8. A device for vaporizing volatile liquids, comprising an outer casing, means for
supplying liquid and a foraminous cone to spread the liquid into a thin sheet and
comminute air, in combination with a main air supply below the cone and a
supplemental air supply near the apex of the cone.
9. A device for vaporizing volatile liquids, comprising an outer casing provided
with a concentric air supply in its bottom, an annular supplemental air supply in the
wall of the casing and provided with a cut off valve and a check valve and a
foraminous cone, in combination with a liquid supply above the cone.
10. A device for vaporizing volatile liquids, comprising a two part conical
casing the lower section of which casing is provided with a concentric air supply
nozzle extending above and below the bottom thereof, an annular liquid chamber
;

page_text: around said nozzle, a discharge passage communicating with said chamber and
a valve seated upon the inner end of the nozzle, in combination with a deflector
above and surrounding the valve, a foraminous cone above the deflector and a
liquid supply above the cone.
Dated this 27th day of August 1895.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.