Improvements in Steam and like Engines, and in Valves for the same.
Year: 1893

page_text: Date of Application, 18th July, 1893
Complete Specification Left, 13th Apr., 1894-Accepted, 7th July, 1894
PROVISIONAL SPECIFICATION.
Improvements in Steam and like Engines, and in Valves for
the same.
I, HERBERT AUSTIN, of 58 Broad Street, in the City of Birmingham,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention has reference to the manner in which I construct and arrange
steam and other motive power engines, and in valves for the same, whereby I am
enabled to construct a compact and simple form of engine suitable for high speed
and for general power driving purposes.
In carrying my invention into effect when constructing a steam engine for
running at high speeds I mount two cylinders upon one common bed or frame
within or upon which I carry a crank shaft having a pair of cranks placed opposite
each other. To the crank journals I couple up connecting rods having any
ordinary form of ends, brasses and caps for working upon the crank shaft, but
having a special lever end carried beyond the pin or journal within the trunk of
the pistons to which the rods are connected.
The pistons I form of any suitable metal and I arrange them preferably with
trunk or open ends and allow them to work in a single acting manner with the
steam, gas or air acting on the solid or closed ends only. The closed or solid ends
of the pistons I provide with true surfaces and with openings and ports for
permitting the valves to work across the faces of the ports controlled by the lever
ends of the connecting rods which project through suitable openings formed in the
ends of the pistons. The rocking or moving of the connecting rod upon its pin
when the crank shaft is revolving causes the lever end of the rod to move the
valve to and fro upon the end of the piston thus uncovering the steam and exhaust
ports within the end of the piston. The valve I enclose within an ordinary cover
or case which I make of sufficient length and width to permit of the free motion of
the valve within it; and I connect the cover rigidly to the piston end by bolts,
studs or any well known system of screwing or cottering for connecting like pieces
together. I make the exhaust port within the piston of such a configuration and
arranged at such a position as will enable the steam or air to pass when exhausting
through the trunk end of the piston. The crank shaft I mount within journal
stuffing boxes to enable this to be readily done.
:
When providing both steam and exhaust ports within the piston ends as herein-
before described I prefer to convey the steam to the valve chest, by means of a
hollow rod which I connect to the outer portion of the cover, and
carry this rod
through an outer stuffing box and cover to meet and enter the steam supply pipe
or chamber. The steam port I make of any suitable shape within the piston end
although I prefer to make it suitable for being controlled by an ordinary D form
of slide valve.
When arranging my engines with pistons having only one port within their ends
for exhausting the steam through their trunk or open ends, I form or provide a
slide cover upon the ends to receive the slide valve, and I allow this valve to be
controlled by means of the movement of the lever end of the connecting rod as
before described; while the steam control I effect by means of an improved form
of valve which I mount outside the cylinder. This new valve I make circular and
tubular and I cause it to revolve by means of gearing or by any ordinary motion
given to it from the crank shaft or intermediate shaft. The valve opening or port
I form within this tubular valve at a position to suit the opening within the

page_text: cylinder cover or end; and I make the port of triangular or tapered form pre-
ferably so as to permit of a rapid cut off being obtained when the rod is moved
along within its cylindrical seat by means of the governor. The motion of this
hollow valve I make a constant revolving one and I provide for a travelling or
longitudinal motion being also obtained when desired by means of any ordinary
form of governor which I connect to act upon the end of the rod when a certain
speed is obtained. The cylinder port I also shape preferably with taper edges;
and I cause the valve to revolve in a cylinder or cover in which certain portions or
channels are cut away or removed so as to form as far as possible balancing of
pressures upon the valve.
I do not limit the application of my invention to engines having two cylinders,
but I employ the same essential features of trunk piston and connecting rod moved
valve with the arrangement of ports hereinbefore described when constructing
single, triple, quadruple cylinders, and I arrange the cylinders and parts to suit
air or gas engines similarly to the manner herein before described when constructing
steam engines.
Dated this 17th day of July 1802
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.
DI MUITIVATION.
Improvements in Steam and like Engines, and in Valves for
the same.
1, HERBERT AUSTIN, of 58 Broad Street, in the City of Birmingham,
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 :—
This invention has reference to the manner in which I construct and arrange
steam and other motive power engines, and in valves for the same, whereby I am
enabled to construct a compact and simple form of engine suitable for high speed
and for general power driving purposes.
In the three accompanying sheets of explanatory drawings,
Figure 1 is a front elevation of the general arrangement of my improved steam
engine, and Figure 2 is an end elevation of the same.
Figures 3 and 34 are detailed sectional elevation and plan of my improved
arrangement of piston and valve showing the ports closed on the down stroke of
the piston; and Figures 4 and 4ª are similar detailed views showing the ports open
to exhaust on the up stroke.
Figure 5 is a detailed sectional elevation of the admission and governor valve,
and
Figures 6, 6, 7 and 7ª are diagrammatic plans of the ports in the rotating valve
and in the valve casing or chest.
Figure 8 is a sectional elevation of my improved arrangement of engine cylinder
and valve for double acting purposes.
In carrying my invention into effect when constructing a steam engine for running
at high speeds as shown in Figures 1 and 2, I mount two cylinders A, A¹ upon one
common bed or frame B, within or upon which I carry a crank shaft C having a
pair of cranks D D₁ placed opposite each other. To the crank journals I couple
up connecting rods E having any ordinary form of ends, brasses and caps for
working upon the crank shatt, but having a special lever end E, carried beyond
the pin or journal G within the trunk of the pistons to which the rods are
connected.
The pistons H, H'I form of any-suitable metal, and I arrange them preferably
with trunk or open ends h, and allow them to work in a single acting manner with

page_text: the steam, gas or air acting on the solid or closed ends, h¹ only. The closed or
solid ends of the pistons I provide with true surfaces and with openings and
ports K, for permitting the valves L to work across the faces of the ports controlled
by the lever ends F of the connecting rods which project through suitable
openings formed in the ends of the pistons. The rocking or moving of the
connecting rod upon its pin G, when the crank shaft is revolving, causes the lever
end F of the rod to move the valve L to and fro upon the end h¹ of the piston,
thus uncovering the steam and exhaust ports K within the end of the piston. The
valve I sometimes retain or enclose within an ordinary cover or case which I make
of sufficient length and width to permit of the free motion of the valve within it ;
and I connect the cover rigidly to the piston end by bolts, studs or any well known
system of screwing or cottering for connecting like pieces together. I make the
exhaust port within the piston of such a configuration and arranged at such a
-position as will enable the steam or air to pass when exhausting through the trunk
end of the piston. The crank shaft C, I preferably mount within journal stuffing
boxes or other bearings N to enable this to be readily done. When providing
both steam and exhaust ports within the piston ends as herein before described,
prefer to convey the steam to the valve chest, by means of a hollow distributing
valve O, which I mount within the outer portion of the cover P, and I carry a
spindle from this rod through an outer stuffing box or ordinary bearing to receive
a gearing wheel driven by the wheel P2 on the intermediate shaft P' so that it may
revolve within the casing as shown in Figure 5. The steam port K, I make of any
suitable shape within the piston end h¹ although it is conveniently controlled when
it is made as an ordinary D form of slide valve. When arranging my engines with
pistons having only one port within their ends for exhausting the steam through
their trunk or open ends, as shown on Sheets 1 and 2 of the accompanying
drawings, I form or provide a slide cover M upon the ends to receive the slide
valve L, and I allow this valve L to be controlled by means of the movement of
the lever end F, of the connecting rod as before described, while the steam control
I effect by means of an improved form of valve O which I mount outside the
cylinder in the casing P. This new valve O, I make circular and tubular, and I
cause it to revolve by means of gearing P2 or by any ordinary motion given to it
from the crank shaft or intermediate shaft P. The valve opening or port O¹
I form within this tubular valve O, at a position to suit the opening within the
cylinder cover or end; and I make the port O' of triangular or tapered form
preferably so as to permit of a rapid cut off being obtained when the rod is moved
along within its cylindrical seat by means of the governor. The motion of this
hollow valve O, I make a constant revolving one and I provide for a travelling or
longitudinal motion being also obtained when desired by means of any ordinary
form of governor R, which I connect to act upon the end of the rod when a certain
speed is obtained. The cylinder port P³ I also shape preferably with taper edges;
and I cause the valve Ŏ to revolve in a cylinder or cover P in which certain
portions or channels may be cut away or removed so as to form as far as possible
balancing of pressures upon the valve.
When arranging my improved continuously rotating valve to work above a
double acting engine I mount the valve O2 as shown in Figure 8, the piston being
of any ordinary type. The ports S, S' I make to be uncovered or covered by the
valve port V as the valve O' revolves by means of its spindle O³, the exhaust
port T, I form within the cylinder and cause the ports S, S' alternately to be
placed in connection with it; and I mount any ordinary governor R, beyond the
casing or valve chest so that the valve O' may be drawn along substantially as
herein before described. Instead of a governor I sometimes arrange a lever in
connection with the moving valve for permitting the control of the speed to be
made by hand.
I do not limit the application of my invention to engines having two cylinders,
but I employ the same essential features of trunk piston and connecting rod moved
valve with the arrangement of ports herein before described, when constructing

page_text: single, triple, quadruple cylinders, and I arrange the cylinders and parts to suit air
or gas engines similarly to the manner herein before described when constructing
steam engines.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is :-
1. The construction and arrangement of single acting steam and like engines in
which the exhaust valve is controlled by a projecting or lever end of the connecting
: rod working through the solid end of the piston, and having the inlet or delivery
port controlled by a continuously revolving circular valve, substantially as herein-
before described and as illustrated in the accompanying drawings.
2. In a steam or the like engine the combination of a trunk piston having a steam
valve which works across the solid end of the pistons to open and close the exhaust
port formed therein, with a continuously revolving steam or delivery valve upon
which a speed regulating rod or governor acts to control the supply of steam or the
like motive power to the piston or pistons, substantially as hereinbefore described
and as illustrated in the accompanying drawings.
3. The construction of a steam or the like admission valve, which is capable of
continuously revolving within its casing or chest and which may be also moved
longitudinally to open and close the ports by means of a governor operated spindle,
or a speed regulating lever, substantially as herein before described and as illustrated
in the accompanying drawings.
1
11004
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicant.