Year: 1887

page_text: Date of Application, 15th Nov., 1887
Complete Left, 28th Mar., 1888
Complete Accepted, 4th May, 1888
I WALTER TEE of 9 Myddelton Square in the County of Middlesex, Engineer, do
hereby declare the nature of this invention to be as follows:-
My Invention relates to hydraulic engines particularly such as are used for working
the feeders of organ bellows.
The Invention relates first to the valve gear whereby the distribution of water to
the working cylinder is controlled, and it has for its object to dispense with the
auxiliary valve usually employed whereby the distribution of the water which works
the main valve is effected; and to provide a single valve which controls the distri-
bution of water to itself as well as to the working cylinder, this single valve being
free from the objections to the unbalanced slide valve heretofore used, that is to say,
it is not pressed upon its seat by the motive fluid, it works freely and is not liable to
stop, power is not uselessly consumed in working it, and it is equally well adapted
for a vertical or for a horizontal engine without liability of the valve leaving its seat.
The valve is in the form of a piston working in a cylinder connected with the main
cylinder, the piston valve being hollow and provided with ports in its circumference
which work over ports leading to the working cylinder, the valve receiving to and fro
longitudinal motion in its cylinder for the purpose of controlling the distribution of
water to the main cylinder, said motion being produced by the pressure of water
acting alternately on the opposite ends of the valve; the valve receiving also a
reciprocating circular motion in its cylinder for the purpose of controlling the distri-
bution of water to itself through the agency of a tappet motion worked by the main
piston rod and acting on the valve spindle either directly or indirectly according to
the relative positions of the valve and the main cylinder. For instance if the motions
of the valve and main piston be parallel, the tappets may act on the valve spindle
through the agency of an inclined cam or other contrivance for changing the
direction of the motion at right angles. In any case, springs may he interposed
for the purpose of rendering the opening of the valve to the main cylinder,
radual

page_text: The Invention relates further to the regulating valve whereby the supply or exhaust
is controlled or cut-off when the bellows are full. Heretofore, the valve has been of
the screw-down kind, but by my invention I gear the valve-operating lever with the
valve spindle by rack and pinion gear whereby with a shorter lever the valve may be
closed and kept closed more effectually against the pressure. The valve spindle is
therefore provided with rack teeth and the lever fixed on a shaft at right angles to
said spindle and geared therewith by a pinion.
D: 19h
1007
W. TEE.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.
I WALTER TEE, of 9 Myddelton Square in the County of Middlesex, 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:-
My Invention relates to hydraulic engines particularly such as are used for working
the feeders of organ bellows.
The Invention relates first to the valve gear whereby the distribution of water to
the working cylinder is controlled; and it has for its object to dispense with the
auxiliary valve usually employed for effecting the distribution of the water used for
working the main valve and to provide a single valve controlling the distribution of
water to itself as well as to the working cylinder, this single valve being free from
the objections to the unbalanced slide valve heretofore used. The valve is in the form
of a piston working in a cylinder, connected with the main cylinder, the piston valve
being hollow and provided with ports in its circumference which work over ports
leading to the working cylinder, the valve receiving to and fro longitudinal motion in
its cylinder for the purpose of controlling the distribution of water to the main
cylinder, said motion being produced by the pressure of water acting alternately on
the opposite ends of the valve; the valve receiving also a reciprocating circular
motion in its cylinder for the purpose of controlling the distribution of water to itself
through the agency of a tappet motion worked by the main piston rod and acting on
the valve spindle either directly or indirectly, according to the relative positions of
the valve and the main cylinder.

page_text: The Invention relates further to the regulating valve whereby the supply or exhaust
is controlled or cut-off when the bellows are full. Heretofore the valve has been of
the screw-down kind, but by my invention I gear the valve operating lever with the
valve spindle by rack and pinion gear whereby with a shorter lever the valve may be
closed, and kept closed, more effectually against the pressure.
Reference is to be had to the accompanying drawings forming part of this specifi-
cation, wherein figure 1 is a longitudinal section of an hydraulic engine for working
organ feeders. Figure 2 is a cross-section of same on line 1-1 figure 1. Figure 3
is a plan of the same, partly in section on line 2-2 figure 1 and partly in section on
line 3-3 figure 4 which is a vertical section on line 4-4 figure 3. Figure 5 is a
development of the interior circumference of the valve cylinder, and figure 6 a
development of the exterior circumference of the valve. The same letters of reference
indicate the same parts in all the figures.
In the example shewn, the valve cylinder is parallel to, and on top of, the working
cylinder. A is the working cylinder, B the working piston, and C the piston rod
connected with the feeders in the usual manner. D is the distribution valve, E its
cylinder, and F the valve spindle. G is the water inlet to the valve cylinder from
the supply under pressure, and H the outlet from working cylinder and valve. The
cylinder A communicates with the valve cylinder E by the usual ports a a¹ opening
through the lower side of the valve cylinder with the exhaust port h between them
The cylinder E also has ports e e¹ leading from points near either end of the exhaust
port to the opposite ends of the cylinder E. The piston valve D is a hollow
cylinder having closed ends and an aperture g in the upper side which is always
open to the inlet G and ports d d' in its lower side, which alternately come opposite
to, and coincide with, the ports a a³, as hereafter described. Between these ports the
valve is formed with a D chamber or exhaust cavity d² which at the proper times
connects one or other of the ports a a¹ with the exhaust port h. At either side of
the exhaust chamber d² are ports e²e which are equal in length to the stroke of the
valve and alternately coincide at proper times with their respectively corresponding
ports e el in the valve cylinder E whilst the other of the two is opened to the exhaust
through the valve cavity d². The distribution of water to the valve cylinder Ę is
effected by the ports e el and is controlled by a tappet motion operated by the main
piston rod C acting on the valve D. The tappets are on a sliding tappet rod I
fixed adjustably parallel to the piston rod C and moving therewith.
In the example shewn, the motions of the valve D and working cylinder A are
parallel, and the tappets act on the valve spindle F through the agency of an
inclined cam slotted bracket L which engages with a radial arm f fixed on the valve
spindle. The spindle F is free to rotate on its axis, but is incapable of longitudinal
motion and its inner squared end is received in a corresponding socket formed in the
end of the valve whereby the two are caused to turn together whilst leaving the
valve free to move to and fro longitudinally in its cylinder. The cam bracket L is
carried by a sleeve / fitted to slide upon a guide rod M parallel to the piston rod,
and its lower end is in the form of an eye through which the tappet rod I slides as
through a guide and which is struck by one or other of the tappets i just before
the piston B reaches each end of its stroke. The sleeve is placed between
springs m m', which yield under the pressure of the tappets but return the sleeve
to its mid-position between then as soon as it is released from the pressure of the
tappet.
The operation is as follows ;-Water having passed through the ports e³ e¹ and
moved the valve D to the left as shewn, water now passes through ports d' a' to the
right hand end of the cylinder A, moving piston B and tappets to the left. As the
tappet recedes from the cam bracket L the spring m³ returns the sleeve / to its
norinal position mid-way between the two springs whereby the valve is partially
rotated in the cylinder to such an extent that the port d which did not wholly
coincide in the circumferential direction with the port al is made to fully coincide
therewith, whereby the admission of water to the cylinder A is rendered gradual.
The valve remains in the same position until, on the piston B nearing the other end of

page_text: its stroke, the tappet i strikes the cam bracket L whereupon the valve is rotated still
further in the saine direction so as to make ports e e³ coincide and open port e¹ to the
exhaust cavity d². The valve D is then moved to the right and the same operation is
repeated for the return stroke of the piston. N is the regulating valve controlling
the escape of water through the exhaust whereby the motion of the engine is
governed and arrested when the bellows are full. The valve is closed against a
suitable seat in a casing connected at the underside of the valve with the outlet H and
its stem n is formed with circumferential rack teeth with which gears a pinion P on
a spindle p to which is fixed a lever R whose free end is acted on by the bellows.
The valve stem is guided within a cap on valve chamber within which also the pinion
is contained.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is ;-
1. The herein described valve for hydraulic engines consisting of a hollow piston
receiving both longitudinal and circular motion in a cylinder the valve and cylinder
being provided with ports and controlling the distribution to the working cylinder and
also to the valve cylinder itself for working the valve, substantially as specified.
2. In a valve gear for hydraulic engines, the combination with a piston valve
receiving longitudinal and circular motion for controlling the distribution to the
working cylinder and to its own cylinder for working the valve as specified, of a
tappet and cam motion worked from the main piston and imparting partial circular
motion to the valve, as described.
3. The combination with the valve, tappet, and cam gear herein described, of the
springs for partially rotating the valve, as and for the purpose specified.
4. The combination with the regulating or governor valve, of the rack and pinion
gear for operating the same, substantially as described.
Dated this 28th day of March 1888.
W. TEE.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.