Improvements in Explosion Engines.
Year: 1899

page_text: Date of Application, 9th Oct., 1899-Accepted, 18th Nov., 1899
Improvements in Explosion Engines.
I, ALEXANDER WINTON, of 37, Bolton Place, in the City of Cleveland, County
of Cuyahoga, and State of Ohio, United States of America, Inventor and Mecha-
nical Engineer, 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 invention relates to improvements in explosion engines, and pertains
to an engine which is particularly adapted and intended for use in connection
with a motor carriage.
In motors for carriages it is exceedingly advantageous to have a smooth run-
ning and well balanced engine, to prevent unpleasant jarring to the body of
the vehicle, and to decrease the wear and tear upon the machine and conse-
quently lessen the liability of injury thereto and increasing the life of the engine
and its co-operating mechanism.
With these ends in view, the primary object of my present invention is to
provide a balance weight for the piston and crank which move in opposition to
the said piston and crank and to further increase the utility and effectiveness
of the said balance weight by connecting it with a pump.
I accomplish this by the mechanism shown in the accompanying drawing, in
which
Figure 1, is a perspective view of an engine embodying my invention, partly
shown in section and partly in dotted lines.
Figure 2, is a detached view of the eccentric and balance weight connecting
rod.
Referring to the drawings, A indicates a casing enclosing an engine cylinder, B,
which is of the usual construction or of any other form as desired. . C is the
piston, D the crank shaft, and E the pitman which is connected at one end
with the piston C and at its opposite end with the crank wrist pin F.
The explosion end of the cylinder is provided with an explosive inlet closed
by the explosive inlet valve G which is provided with a stem H projecting
through a cylinder I. This cylinder I is provided with a dividing web or
plate J and through which the stem H also passes. Secured to the outer end of
the stem H is a piston or diaphragm K, and communicating with the space
between the piston K and the dividing web or plate J is an air pipe L. This
pipe L is in communication with an air pump cylinder M through the medium
of a pipe N, whereby air is pumped into the cylinder I for holding the inlet
port. valve G closed, and the amount of pressure within this cylinder regulates
the amount of tension upon the inlet port valve and thereby the amount of
charge admitted to the explosion cylinder.
The pump piston P has its end Q extended and passes through a bearing R,
the said bearing being supported by the bracket S extending from the casing A,
thus furnishing a space between the bearing R and the casing.
Secured to or formed as a part of the extension of the pump piston P and
thereby practically upon the piston is a balancing weight a. This balance

page_text: weight a is connected by means of the eccentric pitman 6 with the eccentric
strap c which passes around an eccentric & secured to the drive shaft E. It will
be noted that the eccentric dis positioned upon the drive shaft E in opposition
to the wrist pin F, so that in the operation of the engine the pump piston and
consequently the balance weight a are moving in the opposite direction of the
movement of the engine piston C and the engine pitman E and serves to balance
these elements. The eccentric pitman 6 is bifurcated and provided with the two
parallel arms e which are connected to opposite sides of the balance weight a
for the purpose of preventing any lateral thrust upon the pump piston and to
cause a direct pull thereupon. The ends of these arms e are connected with
the balance weight a by means of suitable pins or bearings f projecting from
opposite sides of the said weight.
The advantage of having the weight connection with the pump piston is two-
fold. First the connection of the weight with the pump piston, enables the
piston to furnish a yielding resistance to the movement of the weight thus pre-
venting the sudden stopping and starting of the weight which would otherwise
occur, and causes the pump to perform the double function of a pump and of
a dash pot so to speak for effecting the movement of the weight. Another
advantage of the said construction in connection with a motor carriage is the
saving in space and also a cheapness in construction in that the pump piston
serves as a support for the weight as well as a piston for the pump.
Attention is also directed to the fact that this weight is a vertically disposed
weight and extends transversely in respect to the said piston and thereby parallel
with the side of the casing A which specific construction also is an economy in
space.
For the purpose of regulating the amount of air pressure against the inlet
port valve G, I provide an escape regulating mechanism connected with the
pipe L through the medium of a pipe g. This escape mechanism consists of an
escape valve which is set to regulate the pressure upon the inlet port valve G
to a fixed pressure whereby the engine will run at a fixed rate of speed, and for
the purpose of relieving the pressure upon the said inlet port valve G and thereby.
increasing the amount of charge and the speed of the engine I provide a valve i
having an escape j. The escapes of the valves i and are in communication
with a single escape opening, the escape of the valve being connected with
the said escape k through the medium of a pipe . The advantage of this con-
struction is to provide only a single escape for the air and thereby reducing
the noise as compared with a single escape for each of the valves h and i.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what
I claim is:-
1st. An engine comprising a cylinder, an inlet port therefor, an inlet port valve,
a pressure regulating member connected with the inlet port valve, a pump in com-
munication with the pressure regulating member, a drive shaft, a pitman connected
with the drive shaft and with the engine piston, a piston for said pump, a weight
connected with the piston, the drive shaft having a crank or eccentric arranged
in opposition to the pitman, and the connection between the crank or eccentric
and the pump piston and thereby the balance weight, substantially as described.
2nd. An engine comprising a cylinder, a piston, an inlet port, an inlet port
valve, the pressure regulating member connected with the inlet port valve, a
crank shaft, a pitman connected with the crank shaft and with the engine piston,
an eccentric upon the crank shaft in opposition to the crank, a pump, a pump
piston having an extension, a balance weight secured to said extension, and a
connection between the eccentric and the piston and thereby the weight, sub-
stantially as described.
3rd. An engine comprising a cylinder having an inlet port valve, a piston for
said cylinder, a crank shaft, a pitman connecting the crank shaft and the piston,

page_text: the crank shaft having an eccentric arranged thereon in opposition to said crank,
an inlet port valve for the inlet port, a pressure actuated member connected with
the said inlet port valve, a pump in communication with the pressure regulated
member, a piston for said pump having an extension, a bearing for the extension
of said piston, a balance weight connected with the pump piston between the
bearing and the pump, and a connection between the eccentric and the balance
weight, substantially as described.
4th. An engine comprising a cylinder, a piston therein, a crank shaft, a pit-
man connecting the piston and the crank, an eccentric upon the shaft in oppo-
sition to the said crank, the cylinder having an inlet port valve, a valve for said
port, a pressure actuated member connected with said valve, a pump in communi-
cation with the pressure actuated member, a piston for said pump having an
extension and a vertically disposed balance weight secured to the pump piston,
and a connection between the weight and said eccentric, substantially as described.
5th. An engine comprising a cylinder, a piston therein, a crank shaft, a
pitman connecting the crank of the shaft and the said engine piston, an eccen-
tric upon the shaft in opposition to said crank, an inlet port for the cylinder,
a valve for said port, a pressure actuated member connected to the said valve,
a pump in communication with the pressure actuated member, an escape pipe
in communication with the pump and with the pressure actuated member, the
escape pipe having the valves h and i provided with escape openings communi-
cating with a single escape opening, substantially as and for the purpose
described.
6th. An engine comprising a casing, a cylinder within the casing, a piston
within the cylinder, a crank shaft, a pitman connected with the piston cylinder
and with the crank shaft, an eccentric disposed upon the shaft in opposition
to the crank, the cylinder having an inlet port, a valve therefor, a pressure
actuated member connected with the valve, a pump in communication with the
pressure actuated member, a piston for said pump, a balance weight secured
to the piston and arranged parallel with the sides of the said casing, and a
connection between the eccentric and the pump piston, substantially as described.
7th. An explosion engine, substantially as herein shown and described.
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.