Year: 1886

page_text: I PHILIP MIDDLETON JUSTICE of 55 and 56 Chancery Lane in the County of
Middlesox Fellow of the Institute of Patent Agents do hereby declare the nature
of this invention (a communication to me from abroad by Fenner Ballon Taylor of
the City of Washington District of Columbia, United States of America) to be as
follows:-
This invention relates to improvements in combined gas engines and pumps of
small size which may be employed in pumping water in dwellings or other
buildings chiefly in cities and towns where the pressure in the water supply is
insufficient to elevate it to the desired height, or for other purposes to which such
pumps may be suited. The object of the invention is to provide an inexpensive
but durable gas engine and pump of the simplest construction possible, which will
occupy but little space and will not be likely to get out of order, thus entailing
little or no expense in repairs and requiring but a small amount of unskilled
attention.
By preference the pump is constructed to work vertically, from the fact of that
form occupying less floor space than a horizontal one, and enabling the bed plate,
vertical supports and cylinder, together with the pump barrel and pillar blocks for
supporting the crankshaft to be made in one casting, thus avoiding the expense of
fitting and securing these parts together..
The cylinder of the motor is made with a water jacket open at both ends, its top
being closed by a cylinder head which is easily removeable for the purpose of
cleaning or withdrawing the piston. In the cylinder is formed a passage for the
introduction of the explosive gas mixture and ignition and exhaust ports which
are located about midway in the length of the cylinder. The piston is of the trunk
type and has arranged in it a cylindrical conical valve connected by ports in the
piston which register or communicate with the passage in the cylinder and also
with the explosion chamber above the piston.
The connecting rod is attached direct to both the piston and crank, and by its
vibrations in connection with the revolutions of the crank, motion or oscillation is
given to the valve by means of a tooth or cam formed on the upper end above the

page_text: connecting pin and engaging with or working in a cam shaped recess in the under-
side of the valve.
The explosive mixture of air and gas is supplied to the motor cylinder through
an elastic rubber bag and suitable valves and mixing chamber located in a space
in the base, and is conducted by a side pipe formed in the base and cylinder
support to the passage formed in the cylinder, thence by the passages and ports in
the piston, and valve into the explosion chamber and exhaust passage. The pump
in combination with the motor forming a portion of the machine is a single acting
plunger pump supplied with suitable suction and delivery valves and air chambers,
and is driven direct from the engine shaft by a crank made thereon and connected
to the plunger of the pump by a connecting rod and yoke, the yoke forming the
upper portion of the plunger and working vertically in the same way as the motor
portion of the pump. The lower portion of the pump barrel, the suction and
delivery valve chambers and branch pipe are made in one piece, but separate from
the upper portion of the barrel for convenience of fitting, and to which it is secured
by bolts. The valves in said chambers are adjustable and readily accessible.
The delivery valve chamber is connected with the water space surrounding the
motor cylinder by the branch pipe communicating with a side pipe or passage
formed in the base and cylinder support (but on the opposite side from that of the
gas and air supply) through which communication and water chamber, the water
is delivered by the pump taking up the heat from the motor cylinder in its
passage, and is conducted by a discharge pipe to the point desired.

page_text: I, PHILIP MIDDLETON JUSTICE of 55 and 56 Chancery Lane in the County of
Middlesex Fellow of the Institute of Patent Agents do hereby declare the nature
of this invention (a communication to me from abroad by Fenner Ballon Taylor
of the City of Washington, District of Columbia United States of America) 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 combined gas engines and pumps of
small size which may be employed in pumping water in dwellings or other
buildings chiefly in cities and towns where the pressure in the water supply is
insufficient to elevate it to the desired height, or for other purposes to which such
pumps may be suited.
The object of the invention is to provide an inexpensive but durable gas engine
and pump of the simplest construction possible, which will occupy but little space
and will not be likely to get out of order, thus entailing little or no expense in
repairs and requiring but a small amount of unskilled attention.
By preference the pump is constructed to work vertically, from the fact of that
form occupying less floor space than a horizontal one, and enabling the bed plate,
vertical supports and cylinder, together with the pump barrel and pillar blocks for
supporting the crankshaft to be made in one casting, thus avoiding the expense of
fitting and securing these parts together.
The cylinder of the motor is made with a water jacket open at both ends, its top
being closed by a cylinder head which is easily removable for the purpose of
cleaning or withdrawing the piston. In the cylinder is formed a passage for the
introduction of the explosive gas mixture and ignition and exhaust ports which
are located about midway in the length of the cylinder. The pisson is of the
trunk type and has arranged in it a cylindrical conical valve connected by ports in
the piston which register or communicate with the passage in the cylinder and also
with the explosion chamber above the piston.
The connecting rod is attached direct to both the piston and crank, and by its
vibrations in connection with the revolutions of the crank, motion or oscillation is
given to the valve by means of a tooth or cam formed on the upper end above the
connecting pin and engaging with or working in a cam shaped recess in the under
side of the valve. The explosive mixture of air and gas is supplied to the motor
cylinder through an elastic rubber bag and suitable valves and mixing chamber
located in a space in the base, and is conducted by a side pipe formed in the base
and cylinder support to the passage formed in the cylinder, thence by the passages
and ports in the piston and valve into the explosion chamber and exhaust passage.
The pump in combination with the motor forming a portion of the machine is a
single acting plunger pump supplied with suitable suction and delivery valves and
air chambers, and is driven direct from the engine shaft by a crank made thereon
and connected to the plunger of the pump by a connecting rod and yoke, the yoke
forming the upper portion of the plunger and working vertically in the same way
as the motor portion of the pump. The lower portion of the pump barrel,
the suction and delivery valve chambers and branch pipe are made in one piece,
but separate from the upper portion of the barrel for convenience of fitting, and toʻ

page_text: which it is secured by bolts. The valves in said chambers are adjustable and
readily accessible.
The delivery valve chamber is connected with the water space surrounding the
motor cylinder by the branch pipe communicating with a side pipe or passage
formed in the base and cylinder support (but on the opposite side from that of the
gas and air supply) through which communication and water chamber the water
is delivered by the pump taking up the heat from the motor cylinder in its
passage, and is conducted by a discharge pipe to the point desired.
To clearly explain the nature of the invention, reference is made to the accom-
panying drawings in which :-
Fig. 1 is a plan view.
Fig. 2 an elevation showing the general construction and arrangement of the
different members or parts.
Fig. 3 a vertical section through the line AB, Fig. 1, showing the internal
construction and arrangement.
Fig. 4 is also a vertical section but at right angles to that shown in Fig. 3 and
Figs. 5 and 6 plan and sectional views of the valve chambers. Similar figures
represent corresponding parts in all of the views.
1 is the motor cylinder, 2 the water chamber surrounding it, 3 the passage to
conduct the explosive mixture to the cylinder, 4 the exhaust passage, 5 the base,
and 6 the cylinder supports in which is formed the passage 3 for conducting the
explosive mixture, and the passage 7 which conducts the water to the water
chamber 2 from the pump: In connection with the base 5 is formed the pump
barrel 8 into which is screwed the stuffing gland 9.
In the base 5 is formed a mixing chamber 10, closed by a cover 11 in which is
an opening 12 through which passes the air supply, and which is closed by a flap
valve 13, which is opened by the pressure of the atmosphere as it is drawn in by
the action of the piston in the cylinder and immediately closes by gravity as the
pressure is removed preventing the escape of the gas mixture from the motor. In
this cover is also formed a valve 14, for regulating the amount of gas to be
admitted to form a proper explosive mixture. 15 is an elastic gas bag supplied by
the pipe 16, the purpose of which is to afford a regular supply of gas, 17 are the
pillar blocks, 18 the crank shaft, and 19 the fly wheel.
The piston 20 is made longer than the stroke of the crank in order not to
uncover the passage 3 in the cylinder in its reciprocating motion and is chambered
in its upper portion to reduce its weight. In the side of the lower half is formed
a passage 21 of sufficient length to register and communicate with the passage 3 in
the cylinder during the time that the piston is performing the upper half of its
stroke. It passes and shuts off the passage 3, during the performance of the lower
half of the downward stroke. A passage 22, is formed similar to the passage 21,
in the opposite side of the piston which communicates with the double exhaust 4,
during nearly the whole of the upward stroke of the piston.
The cylindrical conical valve 23, which is fitted into a correspondingly shaped
recess in the piston, has a recess on each side, forming communication between the
passages 21 and 22 in the piston, and the ports 24 and 24° into the explosion
chamber, it is adjusted in its seat by a tail screw and held in position by a coil
spring.
The oscillation of this valve, produced by the cam 25 formed on the end of the
connecting rod 26, above the connecting pin 27, working in the cam shaped
recess 28, forms alternately communication between the explosion chamber and
the induction and eduction passages. Ignition is produced in the ordinary manner
by an external gas flame through a port in the side of the cylinder and piston
which register at the proper point for the explosion.
The connecting rod has a telescopic connection 29 to facilitate the disconnection
when withdrawing the piston. The pump plunger 30 is provided with a yoke 31,
supported at the top by the guide 32, the connecting rod 33 is hinged at its upper
end to the yoke 31, at the point 34, and at its lower end to the crank pin 35, of

page_text: the crank 36, which by preference is made in one piece with the crank shaft 18, by
which means motion is transmitted to the plunger of the pump by the reciprocation
of the piston 20.
The suction valve chamber 37, the delivery valve chamber 38, and the base of
the pump 39, are made in one piece together with the side or connecting pipe 40
for compactness. To avoid joints which are liable to derangement and leakage,
the valves 41 and 42 are made of vulcanised rubber, and their lift can be regulated
by the adjusting screws. in the studs 43 and 44 which are accessible by removing
the cap 45 and unscrewing the union joint 46 which connects the air chamber 47
to the delivery valve chamber 38. The connections for the air chamber 48, and
suction pipe 49, are made by a continuation of the valve chamber 37. Connection
is made at the point 50, by the branch pipe 40, between the pump and the water
passage 7, leading to the water chamber 2, and the discharge pipe 51.
I am aware that prior to my invention gas motors with trunk pistons having
cylindrical conical valves operated by the vibrations of the connecting rod and
single acting plunger pumps, have been in public use and are not new, none of
which do I broadly claim, but:
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, as communicated to
me by my foreign correspondent I declare that what I claim :-
1st. In a gas engine pump the combination of a vertical gas motor having an
external water chamber 2, an induction passage 3, an exhaust passage 4, a trunk
piston 20, with a single acting plunger pump connected and communicating with
the water chamber 2, and discharge pipe 51, by means of the connecting pipe 40,
and passage 7 formed in the base 5 and cylinder support 6, all substantially as set
forth.
2nd. In a gas engine pump the motor cylinder of which has a trunk piston 20,
with a cylindrical conical valve 23, the combination of the tooth or cam 25, formed
on the upper end of the connecting rod 20, working in the cam shaped recess 28,
in the underside of the valve and giving motion to the same substantially as set
forth and for the purposes described.
3rd. In a gas engine pump the combination with the motor cylinder of the side
pipe 3, mixing chamber 10, cover plate 11, opening 12, flap valve 13, and regu-
lating valve 14, in connection with the gas bag 15, as arranged, substantially as
and for the purposes described.
4th. A gas engine pump having a pump barrel 8, formed in connection with the
base 5, in combination with the removable base 39, valve chambers 37 and 38,
connecting side pipe 40, valves 41 and 42, air chambers 47 and 48, and studs 43
and 44, with their regulating screws, substantially as constructed and described.
5th. The combination in a vertical gas engine pump of the motor cylinder 1,
with its water chamber 2, base 5, cylinder supports 6, with their passages 3 and 7,
the connecting rod with the cam or tooth 25 formed on its upper end working in the
cam shaped recess 28, in the under side of the valve 23 for actuating same. Mixing
chamber 10, cover plate 11, with its accompanying opening and valves in con-
nection with the gas bag 15, pump barrel 8, valve chambers 37 and 38, valves 41
and 42, air chambers 47 and 48, connecting pipe 40, the pump plunger 30, with
its yoke 31, connecting rod 33 connecting it with the crank 36, substantially as
set forth and for the purpose described.