Improvements in Liquid-pressure Engines for Blowing Organs, and for other Purposes.
Year: 1898

page_text: Date of Application, 27th Sept.,
1898
Complete Specification Left, 27th June, 1899 -Accepted, 19th Aug., 1899
PROVISIONAL SPECIFICATION.
Improvements in Liquid-pressure Engines for Blowing Organs, and
for other Purposes.
I, THOMAS HAND WYKE, of 68, Prescott Street, East Boston, Mass., U.S.A.,
Machinist, do hereby declare the nature of this invention to be as follows:-
My invention relates to a motor particularly intended for operating the usual
bellows of a pipe organ, but which can also be used for other purposes.
The invention has for its object the provision of a noiseless and automatically
regulated motor, which may be attached to a usual head of water and may be
readily accommodated to the particular pressure of water which the system of
the city or village may supply.
Further advantages pertaining to my invention will be apparent to those
persons making use of the same.
On a suitable base or standard is mounted a hollow water column, within which
is secured, preferably to an internal annular shoulder, by a threaded joint, a
cylinder provided with main ports at one end and similar ports at its opposite
end, slightly removed in both cases from the extreme ends. Within the cylinder
is a piston having flanged ends. The piston is carried by a piston-rod which
passes through a gland in the upper part of the water column, and is provided
with a head for attachment thereto of a pitman to connect the piston with the
usual pump-lever of the organ.
The water or other fluid or steam is admitted into the crown of a valve chamber
in which is a reciprocating slide-valve having the usual cut-off shoulders, and
being provided with end-closures which are recessed in order to fit over projections
at both ends of the valve-chamber in order to give a cushioning effect as the
valve approaches the end of its movement in either direction; fluid entering
the end-closures through small ducts therein. The valve serves to open and
alternately connect ports with the water column and a small chamber above it
into which the ports in the upper end of the cylinder open. At one side of the
valve-chamber, connecting therewith, respectively, at the opposite ends thereof,
are passages opening into a central outflow pipe in which a controlling valve is
situated. This valve has openings adapted to open the passage in either one or
the other direction to release the fluid, alternately, at either end of the slide-
valve so that the pressure on the other side can reciprocate it. To rotate the
valve, as required, a twisted blade is rotatably mounted in an arm of the frame-
work of the motor and is also connected to the stem of the valve. The blade
is engaged by a bifurcated projection on a head, reciprocable with the piston-rod,
and is rotated thereby as the piston-rod moves. By means of a screw-plug
entering the passage way from the rotary valve to the slide-valve ports, the
amount of fluid passing from behind either end of the slide-valve can be regulated
and its movements thereby controlled by throttling the passage of the fluid
to the exhaust pipe.
The exhaust pipe is provided with a plug-valve which can be raised or lowered
to regulate the discharge of fluid from the cylinder by means of a lever attached

page_text: to the usual indicator cord on the organ which, by raising or lowering the valve
starts or stops the motor as required by throttling the exhaust.
In order to prevent the too rapid starting of the piston and to cushion it at
the end of its stroke small ducts are made in the annular flanges on the ends
of the piston to permit of a small flow of fluid behind the piston before the
flanges move entirely off a projection on the respective ends of the cylinder, when
the full force of the pressure is imparted to the end of the piston.
At the end of each stroke, the hollow end of the piston imprisons a small
quantity of fluid which is gradually forced out of the ducts by means of the
projection as the flange passes over it. By this arrangement a perfect silencing
of the motion of the piston and slide-valve is ensured.
P. R. J. WILLIS,
Agent for Applicant.
Improvements in Liquid-pressure Engines for Blowing Organs, and
for other Purposes.
I, THOMAS HAND WYKE, of 68, Prescott Street, East Boston, Mass., U.S.A.,
Machinist, 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 a motor particularly intended for operating the usual
bellows of a pipe organ, but which can also be used for other purposes.
The invention has for its object the provision of a noiseless and automatically
regulated motor, which may be attached to a usual head of water and may be
readily regulated to the particular pressure of water which the system of the
city or village may supply.
Further advantages pertaining to my invention will be apparent to those
persons making use of the same.
Reference being had to the drawings hereunto annexed:
Fig. 1 is a vertical sectional elevation of my improved motor; the section
being taken on the line 1-1 of Fig. 2.
Fig. 2 is a section taken on the line 2-2 of Fig. 1, illustrating the valve
mechanism.
Fig. 3 is a horizontal section taken on the line 3-3 of Fig. 2.
A niotor constructed in accordance with this my invention comprises a suitable
base A on which is mounted a hollow water column B within which is secured,
preferably to an internal annular shoulder B₁ by a threaded joint, a cylinder C,
provided with main ports D at one end and similar ports at its opposite end,
slightly removed in both cases from the extreme ends. Within the cylinder is
a piston E having flanged ends E¹. The piston is carried by a piston rod F,
which passes through a gland F in the upper part of the water column and
is provided with a head G for attachment thereto of a pitman G¹ to connect the
piston with the usual pump-lever of the organ. The water or other fluid, or
steam is admitted through the passage H into the crown I of a valve chamber J,
in which is a reciprocating silde valve K having the usual cut-off shoulders Ki
and provided with heads K2 which are recessed in order to fit over
projections K³ at both ends of the valve chamber SO 8.9. to produce
a cushioning effect as the valve approaches the end of its stroke in either direc-
tion; the fluid entering behind the heads K3 through small ducts K therein.

page_text: The valve K serves to open and alternately connect the ports L', L³ respectively
with the water column 1 and a small chamber B3 above it into which the ports D
in the upper end of the cylinder C open; L³ being the exhaust port. At one side
of the valve-chamber J. (connecting therewith respectively at its opposite ends)
are passages M opening into a central outflow pipe N in which a control-
ling valve P is situated. The valve P has openings adapted to open the
passage in either one or the other direction to release the pressure at that end,
and to permit of fluid pressure at the opposite end of the slide valve K to
reciprocate it. To rotate the valve P as required, a twisted blade O is rotatably
mounted in an arm of the framework of the motor and is also connected
to the stem P¹ of the valve P. The blade is engaged by a bifurcated projec-
tion O on a head 03 reciprocable with the piston rod in ways Q₁ of the frame-
work, and is rotated thereby as the piston-rod moves. By means of a screw-plug R
entering the passage way from the rotary valve and the side valve passages, the
amount of fluid passing therefrom can be regulated and its movements thereby
controlled. The main outlet T is provided with a valve plug T¹ which can be
raised or lowered to regulate the flow of fluid by means of a lever T2 attached to
the usual indicator cord on the organ. In order to prevent the too rapid starting
of the piston and to cushion it at the end of its stroke small ducts E² are made
in the annular flanges E¹ on the ends of the piston E to permit of a small flow
of fluid behind the piston through the main ports D, to which the small ducts Ea
are open, and thus impart motion gently before the flanged ends of the piston
have moved such a distance as permits the full force of the pressure to be
imparted to the end of the piston through the ports D, and similarly at the,
end of each stroke as the hollow end of the piston passes over the main ports D
it imprisons a small quantity of fluid which is gradually forced out of the
ducts E.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed I declare that what.
I claim is:-
(1) A liquid-pressure engine for pumping an organ, comprising a hollow water.
column or support, a cylinder detachably mounted therein, and detachable there-
from without interference with the water column, a piston to reciprocate in
said cylinder, and mechanism co-operating therewith to actuate said piston,
substantially as described.
(2) A liquid-pressure engine, comprising a hollow water column, having a central
annular shoulder at its upper end, a cylinder held by and having threaded
engagement with said shoulder, said cylinder extending at its upper end above
said shoulder, and at its lower end below the same, and being provided adjacent
its ends with ports, a piston reciprocable in said cylinder, and mechanism to
operate said piston, substantially as described.
(3) A liquid-pressure engine comprising a hollow water column, having a
central annular shoulder at its upper end, a cylinder held by and having threaded
engagement with said shoulder, said cylinder extending at its upper end above
said shoulder and at its lower end below the same, and being provided adjacent
its ends with ports, the ends of said cylinder being open, and the adjacent ends
of the water column having projecting bosses engaging with said open ends
with an annular spaces therebetween constituting auxiliary ports, for the purpose
specified, a piston reciprocable in said cylinder, and mechanism to operate said
piston, substantially as described.
(4) A liquid-pressure engine comprising a water column, having an internal
annular shoulder adjacent one end, a cylinder mounted therein and extending
at opposite sides of said shoulder, said cylinder being provided with ports at
its opposite ends, independent chambers in said water column separated by said
internal shoulder, a framework mounted at one end of said water column, a
piston and piston rod for said cylinder, a head carried by said rod and reciprocable
:

page_text: in ways provided therefor in said framework, said head having a bifurcated end,
a twisted blade rotatably mounted parallel to said ways and embraced on its
opposite sides by said bifurcated end, a valve loosely connected to said blade
to be intermittently rocked thereby, a slide-valve, a valve-chamber therefor, said
slide valve being provided intermediate its ends with cut-off shoulders and at its
ends with cushioning devices, end recesses in said chamber receiving said
cushioning ends of the valve, passages from said end recesses to said rock valve
adapted to be controlled thereby, a central outlet from said chamber, a passage
connecting therewith from the rock-valve, and passages from said valve-chamber
to the water-column, substantially as described.
(5) A liquid-pressure engine, comprising a water column, having an internal
annular shoulder adjacent one end, a cylinder mounted therein and extending
at the opposite sides of said shoulder, said cylinder being provided with ports
at its opposite ends, independent chambers in said water column separated by
said internal shoulder, a framework mounted at one end of said water-column,
a piston and piston rod for said cylinder, a head carried by said rod and reciproc-
able in ways provided therefor in said framework, said head having a bifurcated
end, a twisted blade rotatably mounted parallel to said ways and embraced on its
opposite sides by said bifurcated end, a valve loosely connected to said blade
to be intermittently rocked thereby, a slide-valve, a valve-chamber therefor, said
slide valve being provided intermediate its ends with cut-off shoulders and at
its ends with cushioning devices, end recesses in said chamber receiving said
cushioning ends of the valves, passages from said end recesses to said rock-valve
adapted to be controlled thereby, a central outlet for said chamber, a passage
connecting therewith from the rock-valve, passages from said valve-chamber to
the water column, a plunger controlling the outflow from said outlet, and means
automatically operating said plunger, substantially as described.
•
(6) A liquid-pressure engine comprising a water column, having an internal
annular shoulder adjacent one end, a cylinder mounted therein and extending
at the opposite sides of said shoulder, said cylinder being provided with ports
at its opposite ends, independent chambers in said water column, separated by
said internal shoulder, a framework mounted at one end of said water column,
a piston and piston-rod for said cylinder, a head carried by said rod and recip-
rocable in ways provided therefor in said framework, said head having a bifur-
cated end, a twisted blade rotatably mounted parallel in said ways and embraced
on its opposite sides by said bifurcated end, a valve loosely connected to said
blade to be intermittently rocked thereby, a slide-valve, a valve-chamber therefor,
said slide valve being provided intermediate its ends with cut off shoulders and
at its ends with cushioning devices, end recesses in said chamber receiving said
cushioning ends of the valve, passages from said end recesses to said rock valve
adapted to be controlled thereby, a central outlet from said chamber, a passage
connecting therewith from the rock-valve, passages from said valve chamber to
the water column, a plunger controlling the outflow from said outlet, means
automatically operating said plunger, and a screw-plug between said plunger
and the slide-valve for regulating the outflow from the rock-valve to said outlet
substantially as described.
(7) In a liquid-pressure engine, the hereindescribed loose connection for inter-
mittingly operating the controlling valve, in combination with said controlling
valve; a slide valve, ports from the latter, and passages between said valves, said
loose connection comprising a twisted blade extending in alignment with the
rotary valve, and connected to same, a bifurcated head in sliding engagement
with said blade, and means for reciprocating said head, substantially as described.
n T
1000
P. R. J. WILLIS,
Agent for Applicant.