Year: 1886

page_text: Date of Application, 19th June, 1886.
Complete Left, 19th Mar., 1887.
Complete Accepted, 13th May, 1887.
1, MATTHEW HESLOP, of 11 Queen Victoria Street, City of London, Civil Engineer,
do hereby declare the nature of this invention to be as follows:―
The object of this invention is, to so construct and arrange the working parts of an
engine that when more than one cylinder is employed the piston rods or links thereon
can be connected to sliding blocks in direct relation with a cylindrical body, which may
be the fly wheel, or a substitute for a fly wheel, the sliding blocks operating in angled
grooves or inclines formed in, say, the periphery, or in the hub of such a wheel, or
cylinder.
The valves are preferably upon or operated by the axis of the fly wheel or its
equivalent, or direct from a reciprocation of the piston or pistons of the prime mover.
By this invention, the usual crank shaft is dispensed with a circular inotion being
given to an angled grooved roller by means of blocks or bowls on reciprocating piston
rods operated from cylinders provided with a circular rotating valve, this being on
the axis of the grooved roller and supplied with a fluid, say, steam, to the central part
for passage through ports and stops formed in it, these uncovering other ports in a
sleeve enclosed in a jacket or other casing and from thence to the usual steam ways of
the cylinders for the required movements of the pistons.
The ports in the sleeve are so arranged that the pistons move slightly in advance of
each other so that as one of them is about arriving at the end of its stroke, i.e. when
the one block is near the end of the roller groove, the other is exerting its full pressure
on the broad or full part of the groove on the corresponding side of the roller. The
advanced block then arrives at the end of its travel and the roller by its rotation has
brought the bend of the groove to the bowl of the piston rod, the reverse travel of
the first motioned piston now commences and its bowl is well advanced in the groove
by the time the bowl of the corresponding groove is arriving at the end of its travel
for the bend of the groove on its side to pass for commencing its back motion and so
on to maintain an equality of speed of any mechanism or machinery that may be

page_text: driven by the engine by strap from a pulley on the outer end of the rollers axis, or by
gear as desired.
The spiral groove in the roller is preferably double, that is to say, it has a forward
and a backward groove on each half of it but so connected as to constitute a double
race.
The grooved roller and the circular motion valve are preferably in the same axial
line and rigidly connected but they may be carried by distinct bearings and be
connected by gear wheels.
By a modification the piston rods are dispensed with, the pistons (as ring pistons)
having the blocks attached to reciprocate in slots in two sleeves, which in this case
are enclosed in a double ended cylinder, the circular rotating valve being arranged
between them.
11
H. GARDNER,
166, Fleet Strect, London,
Agent for the said Matthew Heslop.
COMPLETE SPECIFICATION.
Improvements in Engines Actuated by Steam, Air, Gas, or other
Fluids.
I, MATTHEW HESLOP of 11 Queen Victoria Street, City of London, Consulting
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 :-
The object of my invention is to construct and arrange the working parts of an
engine, that when more than one cylinder is employed the piston rods, or links
thereon, can be connected to sliding blocks in direct relation with a cylindrical body,
which may be the fly wheel, or a substitute for a fly wheel, the sliding blocks
operating in angled grooves or inclines formed in, say, the periphery, or in the hub of
such a wheel or cylinder.
The valves are preferably upon or operated by the axis of the fly wheel or its
equivalent, or direct from a reciprocation of the piston or pistons of the prime mover.
By this invention the usual crank shaft is dispensed with, a circular motion being
given to an angled grooved roller by means of blocks or bowls on reciprocating piston
rods operated from cylinders provided with a circular rotating valve, this being on
the axis of the grooved roller and supplied with a fluid, say, steam, to the central part

page_text: for passage through ports and stops formed in it; these uncovering other ports in a
sleeve enclosed in a jacket, or other casing, and from thence to the usual steam ways
of the cylinders for the required movements of the pistons.
The ports in the sleeve are so arranged that the pistons move slightly in advance of
each other so that as one of them is about arriving at the end of its stroke, i.e. when
the one block is near the end of the roller groove, the other is exerting its full pressure
on the broad or full part of the groove on the corresponding side of the roller. The
advanced block then arrives at the end of its travel, and the roller by its rotation has
brought the bend of the groove to the bowl of the piston rod, the reverse travel of
the first motioned piston now commences and its bowl is well advanced in the groove
by the time the bowl of the corresponding groove is arriving at the end of its travel
for the bend of the groove on its side to pass, for commencing its back motion and.so
on to maintain an equality of speed of any mechanism or machinery that may be driven
by the engine by strap from a pulley on the outer end of the rollers axis, or by gear
as desired.
The spiral groove in the roller is preferably double, that is to say, it has a forward
and a backward groove on each half of it but so connected as to constitute a double
race.
The grooved roller and the circular motion valve are preferably in the same axial
line and rigidly connected but they may be carried by distinct bearings and be
connected by gear wheels.
By a modification the piston rods are dispensed with, the pistons (as ring pistons)
having the blocks attached to reciprocate in slots in two sleeves, which in this case
are enclosed in a double ended cylinder, the circular rotating valve being arranged
between them.
My invention will be better understood by the annexed drawings in which at
Figure 1 I show a general plan view of an engine according to my first described
construction.
A, A', are two cylinders arranged side by side. B, B¹, are piston rods, C, C, are
blocks on the ends thereof, guided in their to and fro travel by the bars D, D.
E, E, are bowls on the blocks C, C, riding in the groove F, F, of the roller G,
which groove may have a single return race (as at Figure 2) or any required number
of returns.
The axle H of the roller G is mounted in bearings I, I, of the frame and carries at
one end the strap pulley wheel J (or it may be a gear wheel) the other end having the
circular motion valve fixed to it and enclosed in the valve casing K. L, L, and L, L,
are branches to lead the steam or other fluid from the valve to the respective ends of
the cylinders to act upon the pistons like ordinary double acting cylinders.
The details of the circular rotary valve are clearly represented on an enlarged scalo
at Figure 3.
The valve is hollow and the two ends M, M³, are in connection by a trunk N so
that steam or other fluid which enters at P may have free play to the inlet ports Q, Q,
which furnish said steam or fluid to the forward ends of the cylinders A, A¹, and also
to the inlet ports Q1, Q', which furnish steam or other fluid to the back ends of the
cylinders A, A¹.
R is the sleeve of the valve M, provided with passages S, S, corresponding to the
ports Q, Q, Q, Q', (see sectional views Figures 4 and 5) and also with exhaust
passages corresponding to exhaust ports U, U, U', U' (see part sectional view
Figure 5) all of which are common to the main exhaust V (Figure 3) surrounding
the trunk N.
The sleeve R is set steam tight in the casing K but can be shifted round by the
hand lever W for reversing the direction of rotation of the valve M and roller G."
Figure 5 shows the respective positions by held the cylinders A, A', as compared
to that of the valve M and roller G, and clearly indicating that the blocks C, C, are
set at an angle for the bowls E, E', to be below or above the axis of the roller G to
ensure their proper action.

page_text: Figure 6 is a longitudinal section of one of the cylinders (A') showing the arrange-
ment of the steam passages in same from the inlets L', L'.
In the above named Figures the roller G is on a part of the frame separate from
the cylinders and valve, but at Figure 7 I show the two cylinders, A, A, end to end
the valve M being arranged between them and with a roller G at each end of the valve
enclosed within the cylinders A, A'.
According to this construction the sleeve R around the valve is not shown, but. I fit
another sleeve X, X, over the rollers G, G, said sleeves being slotted for the to and
fro motion of the blocks C, O, attached to the ring pistons Y, Y', which force the
rollers G, G, round their own axis by their reciprocating action.
The inlet and exhaust ports of this hollow valve M correspond to those of the valve
before described, but the arrangement of the steam passages in the cylinders are
modified to suit the returns in the grooved block.
It will be seen by Figure 7 that the piston Y is at the end of its stroke, the piston Y¹
being at midstroke, steam being full on for completing its travel as indicated by the
arrows a, a, and with the exhaust port open as indicated by arrow b.
The roller G having turned for the piston Y to commence its return stroke, the
inlet port of the valve opens to the passage as indicated by the arrow c the exhaust
port opening simultaneously as indicated by the arrow d.
The sleeves X, X', have cach a flange Z, Z, serving as the inner abutting ends of
the cylinders A, A¹.
This Figure is shown with the outer ends of the cylinders A, A', removed, but
when these are fitted (as shown in Figure 1), their glands in which the projecting
ends corresponding to H, H, keep the ends steam tight and permit of the projecting
ends to rotate, one end being the steam inlet P and the other which is solid carries the
strap pulley J or other gear as before explained for ordinary driving purposes.
The roller G may have any number of returns of the groove F, F, and these
would have the required number of bowls E, E¹, of separate pistons or piston rods
working from distinct cylinders A, A¹.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim is
1. The arrangement of engine herein before described and shown at Figure 1, in
which a circular motion of a grooved roller G placed out of the axial plane with the
cylinders A, A, is produced from a reciprocating action of pistons as indicated at
Figure 5 of the annexed drawings.
2. The particular construction of rotary valve M as shown at Figure 3 of the
annexed drawings.
3. The combination or double ended cylinder engine shown at Figure 7 of the
annexed drawings and having two grooved rollers G, G, and a rotating valve moved
by reciprocating ring-pistons all as described for the purposes set forth.
The
18th day of March 1887
The 18th day of March 1887
H. GARDNER,
166, Fleet Street, London,
Agent for the said Matthew Heslop.
H. GARDNER,
166, Fleet Street, London,
Agent for the said Matthew Heslop.