NEW COMBINED STEAM ENGINES FOR PRODUCING A CIRCULAR POWER, AND FOR CERTAIN MACHINERY THEREUNTO BELONGING, APPLICABLE TO THE DRAWING OF COLES, ORES, AND ALL OTHER MINERALS FROM MINES, AND POR SPIN- NING COTTON, FLAX, TOW, AND WOOL, OR FOR ANY PURPOSE REQUIRING CIRCULAR POWER
Year: 1802

page_text: of Leeds, in the County of York, Engineer, send greeting.
WHEREAS His most Excellent Majesty King George the Third, by Letters
Patent under the Great Seal of Great Britain, bearing date at Westminster,
the Twenty-eighth day of June, in the forty-second year of His reign, gave
and granted unto me, the said Matthew Murray, my executors, administrators,
and assigns, his especial licence, full power, sole priviledge and authority, that I,
the said Matthew Murray, my executors, administrators, and assigns, and every.
of them, by myself or themselves, or by my or their deputy or deputies, ser-
vants or agents, or such others as I, the said Matthew Murray, my executors,
administrators, or assigns, should at any time agree with, and no others, from
time to time, and at all times thereafter during the term of fourteen years
therein expressed, should and lawfully might make, use, exercise, and vend my
Invention of "NEW COMBINED STEAM ENGINES FOR PRODUCING A CIRCULAR
POWER, AND FOR CERTAIN MACHINERY THEREUNTO BELONGING, APPLICABLE TO THE
DRAWING OF COLES, ORES, AND ALL OTHER MINERALS FROM MINES, AND POR SPIN-
NING COTTON, FLAX, TOW, AND WOOL, OR FOR ANY PURPOSE REQUIRING CIRCULAR
POWER," within England, Wales, and the Town of Berwick-upon-Tweed, and the
Colonies, Plantations, and Dominions abroad, in such manner as to me, the
said Matthew Murray, my executors, administrators, and assigns, should in our
discretion seem meet; in which said Letters Patent there is contained a proviso
that if I, the said Matthew Murray, should not particularly describe and
ascertain the nature of my said Invention, and in what manner the same is to
be performed, by an instrument in writing under my hand and seal, and cause

page_text: the same to be enrolled in His Majesty's High Court of Chancery within four
calendar months next and immediately after the date of the said Letters Patent,
that then the said Letters Patent, and all liberties and advantages whatsoever
thereby granted, should utterly cease, determine, and become void, as in and by
the said recited Letters Patent (relation being thereunto had) may more fully
and at large appear.
NOW KNOW YE, that in compliance with tho said proviso, I, the said
Matthew Murray, do hereby declare that my said Invention is described in
manner following, that is to say—
My new combined steam engines, and parts thereunto belonging of my
Invention, are described in the Figures and Drawings hereunto annexed and
explained. The letters refer to the same Figures in all the Drawings hereunto
annexed and explained.
Fig. 1, 2, 3, and 4 represent front and side views or sections of the
combination of parts constituting my new engine; A, the steam cylinder,
B. the piston rod; C, C, connecting rods for connecting the piston rod to the
pin in the wheel; D, E, a wheel fixed to the side of the cistern, I, I, I, I, with
the teeth inwards, to admit the teeth of the wheel D, for the purpose of giving
a parallel direction to the rods C, C; F a plain wheel upon the fly wheel
shaft G; the wheel F is furnished with a double conical center for the wheel D
to run upon, the principle and form of which is fully described in Fig. 10;
H is a fly wheel, with a circular section of the rim which I consider as a part
of this Invention; I, I, I, I, is a cistern or frame of plates, on and in which
the whole combination of materials constituting my engine is fixed, and part
thereof inclosed by a door a, a; K, K, two wheels, one upon the fly wheels
shaft G, the other upon the crank shaft L; these wheels and crank are for the
purpose of working the leever R in Fig. 4, which leever gives immediate motion
to the air pump P, the cold water pump Q, and the hot water pump S; T is
an iron bar for supporting the crank shaft L; M is a slide valve for opening
and shutting the communication of the steam pipes marked N, N, N, and is
described in Fig. 5, 6, 7, 8, and 9. A motion for the slide valve is taken from
the crank shaft L, by leevers or otherwise, as the nature of the valve may
require, 0, 0, in Fig. 4, are pump pipes to the well for drawing the water into-
the cistern I, I, I, I, in which the cold water pump is immersed; V, a pipe for
running off the spare water. The parts so combined form a perfect engine,
without requiring any fixture of wood or any other kind of framing then the
ground it stands upon, and is transferable without being taken in picces (the
motion of the fly wheel shaft giving circular power to any process or manufac-
tory requiring circular motion), or for irrigating land, or for the various pur-
poses of agriculture.

page_text: Fig. 5. 6, 7, 8, and 9 represent various forms of my new slide valve in its
application to the steam engine, the principle of which consists in moving in a
circle, part of a circle, or straight line, by means of flatt surfaces or faces (or
nearly so) sliding or moving upon each other, for the purpose of uniting the
necessary apertures in the steam pipes or cylinder. Fig. 5 is a view of a
circular flatt sliding valve. The dotted lines shew the avenues to the steam pipes.
a 1, is a Figure representing the upper or moveable part of the slide valve,
Fig. 5, where the conducting or uniting cells are formed; a 6, a circular
spring for compressing a 1 to the face of the slide valve in Fig. 5, so as to
render them perfectly steam and air tight, which perfection they will naturally
acquire by constantly rubbing upon each other; a 7, a section of a box
inclosing a 1, were the depth of the cells are shewn, and its connection with
the face at the bottom of the box, the lid of which is not necessary but as a
finishing to the valve box. Fig. 6, 7, 8, and 9 shew four varieties of the slide
valve for working double and single powers; a 2, a 3, a 4, and a 5 contain the
cells for conducting to the different apertures or steam ways a 8. The form
of a lever or tappett for moving the slide valves a 9 and a 10, springs with
rollers for pressing to the straight or in part circular valves. Any further
description is unnecessary, as the Drawings will convey to any one the prin-
ciples of these Inventions. Note; my new Invention in this case consists in
the application of one slide valve so contrived as to answer the purpose of the
four valves commonly used in double engines, or the two in single ones, and
may be applied to engines of other constructions.
Fig. 10, an enlarged view of the double conical center and steel sockett a 11,
the double coned steel center screwed at both ends, one screw to fasten in the
plain wheel F, represented in Fig. 1 and 2, where it acts as a crank for turning
round the shaft G; the other end is screwed to receive a hollow cone as repre-
sented; a 13, a nutt with two small screws to prevent it from unscrewing ;
a 12, a section of the steel sockett; a 14, plan of D°; a 15, a square nut for
the end of the steel conical pin. The invention and application of the conical
pin to the wheel D, and connecting all the parts to the cistern or frame of
plates as above described, constitutes the principle of this part of my Invention.
Note; the double conical pin may be applied to engines of other descriptions.
Fig. 11 and 12, clevation and ground plan of the above inventions and
arrangements, extended to two cylinders, forming a double engine, and may be
used for the purpose of turning machienry, drawing coals or other minerals from
mines. The parts marked with the same letters in this engine are the same as in
the preceding one, with the addition of the two wheels marked b, b, for turning the
fly wheel H; X, X, X, are dotted lines, shewing the method of turning an

page_text: upright shaft with an horizontal fly wheel; c, c, a hollow cylinder with the
sliding drum upon it, d, d, around which two ropes are wrapped, to which two
basketts or corves are suspended in the pitt ff; e, e, a screw that goes into the
hollow part of the cylinder c; c, and is attached to the drum d, d, by means
of a grove in the cylinder c, c. When the fly wheel H is turned round by the
engine, the screw c, c draws the sliding drum d, d, along the cylinder alternately,
and causes the ropes to be coiled on and off the drum d, d, and prevents the coils
from rubbing against or wearing each other by lateral friction. One revolution of
the screw must slide the drum rather more than the diameter of the rope. This
method of the drum may be applied to beam engines, or any other power for
drawing coals, minerals, &c. My Invention in this case consists in causing the
drum to slide backwards and forwards, which prevents the destruction of the
rope.
In witness whereof, I, the said Matthew Murray, have hereunto set my
hand and seal, this Twenty-third day of October, in the year of our.
Lord One thousand eight hundred & two.
Inrolled the Twenty-seventh day of October, in the year above written.