IMPROVEMENTS OPERATED BY STEAM OR WATER." IN ENGINES AND PUMPS
Year: 1882

page_text: LETTERS PATENT to Charles Woodward of Leeds in the County of York
Engineer, for an invention of "IMPROVEMENTS
OPERATED BY STEAM OR WATER."
IN
ENGINES AND PUMPS
PROVISIONAL SPECIFICATION left by the said Charles Woodward at the
Office of the Commissioners of Patents on the 19th May 1882.
CHARLES WOODWARD of Leeds in the County of York Engineer
MENTS IN ENGINES AND PUMPS OPERATED BY STEAM OR WATER"
"IMPROVE-
This invention relates to improved apparatus to be employed for purpose afore-
said and is mainly designed for use in connection with hydraulic engines for
blowing organs but is also applicable to steam engines and steam pumps.
I employ ordinary cylinder and piston the piston rod crosshead having a
projecting piece the valve rod has spiral springs thereon held in position by means
of collars and set screws these collars are for the purpose of shortening the stroke
the nearer they are brought together and shorter will be the stroke of the piston
by reason of the projecting piece referred to coming in contact with the spiral
springs aforesaid on the backward and forward movement of the piston rod and
crosshead thereby moving the valve and opening and closing the ports alternately
the one port allowing the water in the valve chest to enter the piston valve and on
its return stroke to enter the other end of piston valve. The piston and rod are
connected to an ordinary slide valve by means of collar and set screw cylinder and
exhaust ports are provided together with necessary feed regulator and a regulating
nut on the valve rod to prevent the valve being moved too far the spiral springs
referred to are to prevent undue strain upon the valve and valve rod.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Charles Woodward in the Great Seal Patent Office on the
18th November 1882.
CHARLES WOODWARD of Leeds in the County of York, Engineer.
MENTS IN ENGINES AND PUMPS OPERATED BY STEAM AND WATER"
"IMPROVE-
This invention relates to improved apparatus to be employed for purpose afore-
said and is mainly designed for use in connection with hydraulic engines for organ
blowing but is also applicable to steam engines and steam pumps-I employ
ordinary cylinder and piston, the piston rod, cross head having a projecting piece,
the valve rod has spiral springs thereon held in position by means of collars and
set screws these collars are for the purpose of regulating the stroke the nearer they
are brought together and shorter will be the stroke of the piston by reason of the
projecting piece referred to coming in contact with the spiral springs aforesaid on
the backward and forward movement of the piston rod and cross head thereby
moving the valve and opening and closing the ports alternately the one port
allowing the water in the valve chest to enter the piston valve and on its return
stroke to enter the other end of piston valve. The piston and rod are connected
to an ordinary slide valve by means of collar and set screw, cylinder and exhaust
ports are provided together with necessary feed regulator and a regulating nut on
the valve rod to prevent the valve being moved too far the spiral springs referred
to are to prevent undue strain upon the valve and valve rod.
Such being the nature and object of this my said invention I will now proceed
to describe the same in detail and in order that the invention may be fully under-
stood I have hereunto annexed 3 Sheets of drawings illustrative thereof and have
marked the several views with figures of reference the same part being marked or
denoted by like figures in the several views, the description of and drawings have
special reference to engines moved by water power but it must be understood that
the description and apparatus illustrated is equally applicable to steain engines or
:
Fig 1 is a longitudinal elevation partly in section-Fig. 2 is an end elevation
(right hand) partly in section-Fig: 3 is a separate (plan) view of the valve plate-
Figs 4, 5 are detail views of port ways-Fig: 6 illustrates the application of part
of my invention to existing engines.
At 1 is the ordinary cylinder-2 the piston, the cross head 3 of the piston rod has
a projecting piece 4 through which the valve rod 5 works in same direction as the
piston and rod 2-the spiral springs 6 and 7 are held in position by the collars or
stop pieces 8. 9 the latter being adjustable by the set screws 10. 11 so as to determine
the length of stroke of the piston the nearer the collars 8 and 9 are brought
together the shorter will be the stroke-the spiral springs 6 and 7 serve as
cushions and prevent shock or concussion of the collars on or against the cross
head piece 4-12 is an inverted slide valve which through the port 13 of portway
plate 14 feeds the one end of the piston valve cylinder 15 and operates the piston 16
and by the piston rod 17 which is connected to the main slide valve 18 regulated
by set screw and collar. 19 operates the valve so as to open and close the passage
way to the portways 20, 21 leading to the main cylinder 1 thereby acting upon
and working the piston 2.
The feed or supply of water is by way of the pipe 22 and tap 23 the latter
being opened and closed by the usual connections with the lever 24. 25 is the

page_text: exhaust port of cylinder 1 and 26 is the exhaust for cylinder 15 through the
plate 14 the port 26 is connected with port 25 by the side of passage 27 and
between the two ports is a spring check valve 28 for the purpose of retarding or
easing the valve 18 and preventing concussion-at 29 and 30 are inlets for passage
of water. from the water (or steam) chest 31 to the chamber 32 thence by ports 33
and 13 the latter being a separate passage way to the rear end of the piston 16
(see fig 4) the port 33 leading to the front end of cylinder 15
The position of the piston 2 as shewn in drawings is at the rear or bottom end
of the cylinder 1 the water having entered by way of pipe 22 to the chest 31
through the passages 29-30 to and along the port 13 (as shewn by arrows) thence
to cylinder 15 and moving back the piston 16 the rod 17 of which being connected
to the valve 18 has drawn the said valve clear of the port 20 leaving the latter
open the piston 2 being thus operated its rod and cross head 3 travel forward until
the piece 4 comes in contact with the spring 7 moving the rod 5 and valve 12
thereby closing port 13 and opening port 33 whereby the piston 16 is moved in
oposite direction and closes the port 20 and opening the port 21 and so on alter-
nately It will be seen that the feed through port 33 is to the oposite end of the
cylinder-at 34 whilst the portways 13 supplies the end 35 of the cylinder the
pistons being at oposite ends of the respective cylinders 1 and 15 and so have
reverse action without the aid of four way taps or levers as heretofore.
Referring now to Fig: 6-1 is the cylinder the piston 2 the cross head 3 the
projecting arm having additional bearing 36 for supporting piston spindle 37 con-
nected to piston 16-38 is a regulating collar on spindle 37 by means of which the
valve 18 is permitted to slightly open when the collar 38 reaches the bearing 36
for the purpose of preventing sudden rush of water by port 20 to the cylinder 1
thereby ensuring gradual movement and preventing concussion.
Having thus fully described the nature and particulars of this my said invention
together with the manner in which the same is to be performed or carried into
practical effect I would have it understood that I do not claim as new any of the
parts considered separately what I do claim is.
Firstly The general construction and combination of parts forming my improved
apparatus for purpose aforesaid as herein described and substantially as illustrated
by the drawings annexed.
Secondly-The use in combination of the cylinders 1 and 15 having portways
13. 33. 20. 21 and valves 18 and 12 operated and operating in manner herein
described and illustrated by drawings annexed.
Thirdly The combination of the cross head 3 springs 6. 7 adjusting collars 8. 9
on valve rod 5 the latter directly connected to valve 12 for purpose herein
described and as illustrated by drawings annexed.
Lastly The use of the cross head 3 bearing 36 collars 38. 38 in combination
with the piston 10 acting as herein described and as illustrated by drawings
annexed.
In Witness whereof I the said Charles Woodward have hereunto set my
hand and seal this fourteenth day of November in the year of our Lord
one thousand eight hundred and eighty two.
Witness
CHARLES WOODWARD (L.S.)
WALTER BRIERLEY
Patent Agent
Halifax & Blackburn & Huddersfield