Improvements relating to Valves applicable for Organs or for other purposes.
Year: 1899

page_text: Date of Application, 27th June, 1899 -Accepted, 16th Sept.,
1899
COMPLETE SPECIFICATION.
Improvements relating to Valves applicable for Organs or for other
purposes.
I, GEORGE WHITE, Engineer, of 7, Mount Street, Blackburn, in the County of
Lancashire, 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:-
The object of this invention is to provide a simple and effective method for
the rapid and intermittent supply of compressed air; also to provide means
for regulating the exact quantity required for use as it passes through the valve
block. These valve blocks may be made singly, or fixed together in sets of
varying sizes, as may be convenient. They may be made to allow a small quan-
tity to pass through the valve or they may be made to allow a comparatively
large quantity of compressed air to pass through. In the latter case they will
be each provided with a relief pallet to allow of the escape of any compressed
air which may remain in any tube or chamber connected to the outlet of the
valve block.
In carrying out this invention, I provide for each valve block, a rectangular
block, either cut, or built up from wood or cast in metal. The dimensions of
each of these will depend on the quantity of compressed air required to pass
through. Each valve block contains a hollow chamber with an inlet. The inlet
may be circular or in the form of a slot. The inlet may be either at the bottom.
or at either end, or at the back, or front, whichever may be the most suitable
position for connection to the compressed air reservoir to which the valve block
may be fitted.
In the hollow chamber of the valve block the compressed air is stored and
brought into close contact with the front end of one or more delivery passages
provided to allow the compressed air to reach the outlet. The other end of the
delivery passage forms the outlet when only one passage is required: where
more than one are used they all deliver into a cavity common to them all which
forms the outlet.
These outlets may be circular or in the form of a slot, and may be placed in
the top of the valve block, or at either end, or in the back, whichever may be
most suitable for use at the time.
The storage chamber may entirely surround the front end of the delivery
passage, or passages, or may lie parallel with it on the top side, or bottom side,
or both at once.
The front end of the delivery passage, or passages, is normally covered by
a flexible diaphragm, whose surface is four times as large as the hole in the
This flexible diaphragm which
delivery passage, or passages, which it covers.
may be made of leather, or silk, or indiarubber, forms the supply valve of the
block, and is fastened by the edges to a cover which is closely screwed on to the
front of the valve block. In the case of valve blocks which pass a large quan-

page_text: tity through them, it is more convenient to fix the cover on the top. In either
case the cover may be removed, if required, after taking out the screws.
The cover is channelled or hollowed out to form a cavity, which is slightly
smaller than the diaphragm in surface measurement, and deep enough to allow
the diaphragm to move to and fro. The cavity is also deep enough to allow of
the presence of a flat wooden disc or button which may be made to move slowly
backward or forward, by means of an adjustable regulating screw which carries
the wooden button on its point. The screw passes through the cover and is
bent to form a convenient handle to turn it with. By turning this screw either
one way or the other a sufficient number of times, the valve can be regulated
to pass the exact quantity required, as the diaphragm can only move as far away
from the end of the delivery passage as the wooden disc will allow it.
The cavity in the cover is connected by a tube to an auxiliary supply and
exhaust arrangement of any known form which will alternately fill and empty
the cavity in the cover at the will of the operator.
In order to obtain a clear idea of the working of these valves, reference may
be made to the following diagrams. Fig. 1, is a section of cover and valve
block, with a circular inlet A, at bottom, and slotted outlet E at back. The
storage chamber, B, is arranged parallel with the bottom side of slotted deli-
very passage C, (this is shown quite clearly in Fig. 2), and the adjustable regu-
lating screw which carries the button Z is unscrewed to its full extent. D, is
the diaphragm F, the cavity, T, the tube which connects it to the auxiliary.
Fig. 2 is a front elevation of the same arrangement of cover and valve block,
with the cover H, removed.
Fig. 3, is a section of another arrangement of cover and valve block, with
circular inlet A, at bottom, slotted outlet E, at back, storage chamber, B. B
arranged parallel with top and bottom of slotted delivery passage C, and the
adjustable regulating screw G, turned in close to the front end of delivery pas-
sage C, so as to allow only a small quantity of compressed air to pass through
when the valve is worked.
Fig. 4, is a front elevation of the same arrangement with cover H removed.
Fig. 5, is a section of another arrangement of cover and valve block, with
circular inlet A at bottom, circular outlet E at top, and storage chamber, B, B
entirely surrounding slotted delivery passage C.
Fig. 6, is a front elevation of the same arrangement with cover H, removed.
Fig. 7 is a section of another arrangement of cover and valve block, with
circular inlet A at bottom, circular outlet, E, at top, and storage chamber B, B,
entirely surrounding circular delivery passage, C.
Fig. 8, is a front elevation of the same arrangement, with cover H, removed.
Fig. 9, is a plan of large valve block with top cover H, removed. It has a
long narrow inlet A, A, leading to the storage chamber B. B, B, B, which sur-
rounds four delivery passages. C, C, C, C, which deliver into a common outlet E
at the opposite side to the inlet.
Fig. 10. is a section of Fig. 9. on line X, Y, with the top cover H in place
showing the diaphragm D with relief pallet P, attached to it by the wire rod L,
and the nuts K, K, K.
The relief pallet P, covers the hole M, and is kept in position by the guide
pins J, and J1. The object of the pallet is to relieve the outlet E. and any cham-
ber or tubes connected to it, of any superfluous compressed air that may remain
in them when the diaphragm D closes over the delivery passages C, C, C, C,
and the supply of compressed air is cut off.
The action of the valve blocks can be seen by reference to Fig. 1. The tube T.
in the cover H, is connected to an auxiliary pneumatic supply and exhaust
arrangement of any known form, charged with compressed air of a certain pres-
sure, which, traversing the tube T. fills the cavity F, in the cover H and blows
the diaphragm D closely against the front end of the delivery passage C.
The inlet A, of the valve block is connected to a reservoir charged with com-

page_text: ressed air of less pressure than that in the auxiliary supply and exhaust
rrangement, consequently the diaphragm D, remains stationary until the
perator reverses the auxiliary supply and exhaust arrangement. When that
happens, the heavy pressure air is allowed to escape from the cavity F, leaving
the diaphragm D, with atmospheric air pressure only, on the cavity side and
compressed air on the other side. The compressed air immediately blows the
diaphragm D as far into the cavity F, as the regulating button Z will allow,—
as in Fig. 3, and then escapes through the outlet E. It will continue to pass
through until the operator again reverses the auxiliary supply and exhaust
arrangement, when heavy pressure air is again sent through the tube T, and
the diaphragm D again resumes its normal position, as in Fig. 1. When these
valve blocks are made in sets, I provide one long piece of wood or metal of
sufficient length to form all the storage chambers, inlets, delivery passages,
and outlets, side by side, graduating the sizes from large to small, no matter
if the outlets are on the top or at the back.
The covers for each valve will be separate as in the case of single valve blocks
herein before described. It will thus be possible to remove any particular cover
if required.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. Constructing compressed air valve blocks, either singly, or in sets, with
2. Parallel arrangements of storage chamber and delivery passage, also
3. With delivery passage, or passages surrounded by storage chamber, also
4. With the herein before described arrangements of inlet and outlet, also
5. With the adjustable screw and button arrangement for regulating exact
quantity, and also
6. With relief pallet attached to diaphragm, for removing superfluous com-
pressed air when valve is closed, substantially as herein before described and
illustrated in Figures 1 to 10 of the accompanying drawings.
DL 94th day of June 1899.
GEORGE WHITE,
Engineer, of 7, Mount Street, Blackburn, Lancashire.