Improvements in and relating to Motive Power Engines.
Year: 1894

page_text: Date of Application, 8th Mar., 1894
Complete Specification Left, 8th Dec., 1894-Accepted, 2nd Feb., 1895
PROVISIONAL SPECIFICATION.
Improvements in and relating to Motive Power Engines.
I, HEZEKIAH CAUTHERLEY of 26, Lowerhouse Fold, near Burnley, in the
County of Lancaster, Miner, do hereby declare the nature of this invention to
be as follows:-
This invention relates more particularly to steam-engines, and consists in so
arranging the cylinder and piston with respect to each other, that both will be
capable of rectilinear movement but in reverse directions by the pressure of
steam, and consequently more power is obtained, than when the piston alone is
operated.
In carrying out my invention the piston is mounted and capable of sliding to and
fro in a substantial slide rest, the slide boxes which may be of ordinary construction
moving with it. Fixed to the front of and moving with the cylinder are one or
more stems or pistons, which by means of cranks and connecting rods assist in
operating the main shaft of the engine.
The crank of the piston rod occupies a reverse position to the cylinder cranks
or crank wheels above described, so that when the steam enters the cylinder
between one side of the cylinder and the piston respectively, it will give reverse
motion to them, and consequently more power is obtained, since their combined
working area is considerably greater. The cylinder is thus caused to act as a
second piston moving in a contrary direction to its piston.
To get over the difficulty of supplying the moving slide box or boxes with steam,
the steam pipe is caused to reciprocate in a gland or throat formed in a stationary
steam chest, which receives the full pressure of steam from the boilers. The
exhaust may be similarly dealt with.
The slides for admitting steam into the cylinder may be operated by eccentrics
in the usual way.
Dated thin 7th dow of March 1901
.
Improvements in and relating to Motive Power Engines.
I, HEZEKIAH CAUTHERLEY of 26, Lowerhouse Fold, near Burnley, in the
County of Lancaster, Miner, 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 relates more particularly to steam engines, and consists in so
arranging the cylinder and piston with respect to each other, that both will be
capable of rectilinear movement, but in reverse directions by the pressure of
steam, and consequently more power is obtained, than when the piston alone is
operated.

page_text: In carrying out my invention, the piston is mounted and capable of sliding to and
fro in a substantial slide rest, the slide boxes which may be of ordinary construction
moving with it. Fixed to the front of and moving with the cylinder are one or
more stems or pistons, which by means of cranks or connecting rods assist in
operating the main shaft of the engine.
The crank of the piston rod occupies a reverse position to the cylinder cranks or
crank wheels above described, so that when the steam enters the cylinder between
one side of the cylinder and the piston respectively, it will give a reverse motion to
them, and consequently more power is obtained, since their combined working area
is considerably greater. The cylinder is thus caused to act as a second piston
moving in a contrary direction to the piston.
To get over the difficulty of supplying the moving slide box or boxes with
steam, the steam pipe is caused to reciprocate in a gland or throat formed in a
stationary steam chest, which receives the full pressure of steam from the boilers.
The exhaust may be similarly dealt with.
The slides for admitting steam into the cylinder may be operated by eccentrics
in the usual way.
In the accompanying drawings,
Fig. 1 is a side elevation, and Fig. 2 a plan of a high pressure engine constructed
in accordance with my invention.
The cylinder A is furnished with stems B, preferably two in number, which are
secured to the cylinder by brackets B', and are shewn in the drawings as sliding
on the bowls or the like C, but may slide in a substantial slide rest, or in any
other suitable manner so that the cylinder is capable of rectilinear movement in
either direction.
The cylinder is caused to reciprocate in opposite directions to the piston by the
pressure of steam, which enters by steam pipe D, through slide box E, and acting
on the respective faces of the piston and cylinder moves them in opposite
directions.
The number of ergs of work done by the pressure of steam is thus considerably
increased over the ordinary method of solely operating the piston, because it will
be evident that there is a greater working capacity for the impact of the steam,
since both piston and cylinder are capable of rectilinear movement, and both by
the same force and expenditure and distribution of steam are assisting in operating
the main shaft of the engine. Moreover, the cut-off should be considerably
quicker, and consequently in my improved engine, I can work expansively more
efficiently and to better advantage, than in the usual types of steam engines.
The steam or supply pipe D reciprocates in the glaud or throat of stationary
stuffing box F, which may receive the full pressure of steam from the boilers,
while the exhaust pipe (not shewn in the drawings) may be similarly dealt with.
The piston rod G may be extended, if desired through the other end of cylinder
as shewn, to serve as a ballast for it, and steady it in working. The two stems B,
through the medium of connecting rods H, operate cranks I and I' on the main
shaft J, but work inversely to piston connecting rod K, which is shewn as actuating
disc crank L while the usual eccentric and rod opens and closes the slide valves in
the usual way.
It will be obvious that the eccentric must have a larger sweep
than ordinary.
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. The improved arrangement and construction of motive power engines, with
a sliding cylinder and piston moving in opposite directions to each other, substan-
tially as described and illustrated for the purpose set forth.
2. The sliding cylinder A, provided with stems B, and sliding on bowls or other
sliding pieces C, so as to be capable of rectilinear movement in opposite directions

page_text: to the piston, the said stems being connected by connecting rods H to cranks I
and 1', and assisting in operating the main shaft J of the engine, substantially as
described and illustrated for the purpose set forth.
Dated this 6th day of December 1894./
F. RICHMOND,
12, Standish Street, Burnley, and
1 and 3, New Water Street, Blackburn,
Agent for the Applicant.
F. RICHMOND,
12, Standish Street, Burnley, and
1 and 3, New Water Street, Blackburn,
Agent for the Applicant.