A New or Improved Fluid Pressure Motor.
Year: 1893

page_text: Date of Application, 5th June, 1893
Complete Specification Left, 3rd Mar., 1894-Accepted, 5th May, 1894
PROVISIONAL SPECIFICATION.
A New or Improved Fluid Pressure Motor.
We, WILLIAM SLATER of 2 Vermont Street, Millwright, and THOMAS SLATER
of Daly Street, Deane Road, Pattern Maker, both of Bolton in the County
of Lancaster, do hereby declare the nature of our said invention to be as follows:-
This invention relates to a new or improved motor on the reciprocating principle
capable of being driven by either steam, water, or other fluids, and consists of a
cylinder fitted at each end with covers and stuffing-boxes. In the latter is disposed
a reciprocating piston rod or shaft carrying a piston block to which is attached in
any convenient manner an adjustable quadrant actuated by springs and bearing
against the inner circle or face of the cylinder. The piston rod passes through the
said stuffing-boxes and is supported in bearings mounted on the foundation plate
carrying the cylinder or otherwise. To ensure of a tight joint being effected
between the piston block and the cylinder covers adjustable discs or followers are
employed, being held thereto by springs located in chambers in the cylinder covers.
The cylinder may be provided with one or more valves on the "Corliss" or other
principle actuated by any suitable mechanism, springs, dash-pots, and the like to
regulate the admission of the driving medium. The upper or lower side of the
cylinder may be fitted with a block concaved to fit the piston block to make a tight
joint. The ports from the admission valves to the cylinder may be disposed in any
convenient manner; the exhaust or outlet being arranged accordingly. The piston
rod, block, and quadrant reciprocate or rotate only one-half a revolution to and fro,
which gives a circular motion to a shaft by means of cranks and a connecting rod or
rods. This rotating shaft is mounted in bearings on the foundation plate or other-
wise; and may be fitted with a fly-wheel, spur or other wheel, rope or other pulley
to transmit the power. A governor may be applied to control the admission valves
and regulate the speed of the motor.
Dated the 3rd June 1893.
EDMUND CHADWICK, F.I.C.P.A.
Agent.
COMPLETE SPECIFICATION.
A New or Improved Fluid Pressure Motor.
We, WILLIAM SLATER of 2 Vermont Street, Millwright, and THOMAS SLATER
of Daly Street, Deane Road, Pattern Maker, both of Bolton in the County
of Lancaster, do hereby declare the nature of our said 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 to a new or improved fluid pressure motor on the recipro-
cating principle capable of being driven by either steam, water, or other fluids, and
consists of a cylinder fitted at each end with covers and stuffing-boxes. In the
latter is disposed a reciprocating piston rod or shaft carrying a piston block to
which is attached, in any convenient manner, an adjustable quadrant actuated by
springs and bearing against the inner circle or face of the cylinder. The piston rod
passes through the said stuffing-boxes and is supported in bearings mounted on the
foundation plate carrying the cylinder or otherwise. To ensure of a tight joint
being effected between the piston block and the cylinder covers adjustable discs or
DQ27

page_text: "
followers are employed, being held thereto by springs located in chambers in the
cylinder covers. The cylinder may be provided with one or more valves on the
"Corliss
or other principle actuated by any suitable mechanism, springs, dash-pots,
and the like to regulate the admission of the driving medium. The upper or lower
side of the cylinder may be fitted with a block concaved to fit the piston block to
make a tight joint. The ports from the admission valves to the cylinder may
be disposed in any convenient manner; the exhaust or outlet being arranged
accordingly. The piston rod, block, and quadrant reciprocate or rotate only one-
half a revolution to and fro, which gives a circular motion to a shaft by means of
cranks and a connecting rod or rods. This rotating shaft is mounted in bearings on
the foundation plate or otherwise; and may be fitted with a fly-wheel, spur or other
wheel, rope or other pulley to transmit the power. A governor may be applied to
control the admission valves and regulate the speed of the motor.
Fig. 2 a plan. Fig. 3 a transverse section through line A'B'.
Fig. 4 a longitudinal sectional elevation of cylinder showing inlet and exhaust
or outlet ports.
Fig. 5 a longitudinal sectional elevation of cylinder showing compression block,
piston block, and quadrant.
Fig. 6 an end view of compression block, piston rod, and piston block.
Fig. 7 a longitudinal sectional elevation showing side adjustments of quadrant,
and Fig. 8 an end view of Fig. 7.
In all the figures the same letters are employed to indicate corresponding parts.
A is the cylinder; B the covers; C the stuffing boxes; D the reciprocating
piston rod or shaft; E the piston block; F the quadrant; Githe "Corliss" valves;
Hthe "Corliss" valve boxes; I admission ports; J exhaust port; K compression
block; L foundation plate, and M fly wheel or its equivalent.
The cylinder A is provided at each end with the covers B; the latter having
the stuffing boxes C, in which is mounted the reciprocating piston rod or shaft D,
the outer ends of the said shaft being mounted in the bearings N secured to the
foundation plate L. On the rod or shaft D is fixed the piston block E secured in
any convenient manner. To the piston block E is secured the quadrant F by
bolts, set screws, or their equivalents, which is provided with the adjustable steel
blades or followers O actuated by the springs P; the steel blades or followers O
and the circular surface of the quadrant F bearing against the inner circle or face
of the cylinder A. The ends of the quadrant F are provided with the adjustable
steel blades or followers Q and the springs R, as shown in Figs. 7 and 8, to make
a tight joint against the cylinder covers B. The cylinder A is constructed as
shown in Fig. 3 to receive the compression block K, which may be secured by
being tapered, or by means of bolts, set screws, or their equivalents. The upper
end of the block K is concaved to the diameter of the piston block E, a tight joint
being effected between the same and the cylinder covers B by means of the
adjustable steel blades or followers S and the springs T. The cylinder A is
provided with the admission ports I, and the exhaust port J; the latter being
fitted with the exhaust pipe U. To the admission ports I are attached the valve
boxes H fitted with "Corliss" or other valves G mounted on the spindles V.
the spindles V are fixed the levers W, to which are attached the rods X by the
pins Y. The rods X descend through the upper end of the foundation plate L,
and are of sufficient length to allow of them being actuated alternately by the
cams Z or their equivalents on the rotating shaft C₁ mounted in the bearings D1
on the foundation plate L. The valves & are opened by the rotating action of
the cams Z and closed by the springs E' secured to the levers W and foundation
plate L. The reciprocating piston rod or shaft D is fitted with the crank G¹, and
the rotating shaft C¹ with the crank H¹, both being provided with crank pins 11
On

page_text: and K respectively, and coupled together by the connecting rod L. The driving
medium is admitted by the valve or tap M', from whence it is conducted through
the pipe N to the valve boxes H. When the reciprocating quadrant F is in the
position shown in Fig. 3, the valve G-on the right hand side of the drawing-is.
open by the action of one of the cams Z on the rotating shaft C', by which the
driving medium passes through the inlet port connected therewith and operates on
the adjustable quadrant F and moves the same to the position shown in dotted lines,.
during the travel of which the driving medium is cut off and expansion takes
place. While this action is taking place the valve G on the opposite or left hand
side of the drawing is closed. As soon as the point 01 passes sufficiently far to
open the exhaust port J expansion ceases, and the exit or exhaust of the same.
takes place through the said exhaust port J. When the adjustable quadrant F
assumes the position shown in dotted lines the valve G on that side is open to force-
the same back to its original position; expansion and exhaust being effected in a.
similar manner, thus producing a reciprocating motion, or a to and fro movement
to the quadrant F. To ensure of the quadrant F producing a reciprocating-
motion and prevent a rotary motion thereto the crank G₁ is slightly longer-
between the centre of the shaft D and the centre of the crank pin I' than the
centre between the rotating shaft C' and the centre of the crank pin K¹ in the
crank H'; the impetus of the fly wheel or its equivalent M producing of a rotary-
motion to the shaft C'. By providing the inlet pipe N' with a throttle valve the
motor may be regulated by an ordinary governor to produce any desired speed.
Having now particularly described and ascertained the nature of our said inven--
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
In a New or Improved Fluid Pressure Motor, the combination of the cylinder A,.
reciprocating piston rod or shaft D, piston block E, adjustable quadrant F and
compression block K with means for making the respective tight joints by adjustable.
steel blades or followers and springs, the said cylinder being fitted with valve.
boxes and valves operated alternately by cams or their equivalents from a rotating
shaft; the latter being effected by the cranks G' and K' and the connecting rod Li
from the reciprocating piston rod or shaft D, substantially as described and as.
illustrated in the annexed drawings.
Dated the 28th February 1894,
EDMUND CHADWICK, F.I.C.P.A.,
Agent.