Improvements in Organs.
Year: 1887

page_text: Date of Application, 11th Feb., 1887
Complete Left, 2nd Nov., 1887
Complete Accepted, 2nd Dec., 1887
Improvements in Organs.
1, WILLIAM JELLICORSE LEDWARD, of Pentrich Vicarage, in the County of Derby,
Clerk in Holy Orders, do hereby declare the nature of this invention to be as
follows:-
This invention consists of improvements in the construction of what are known as
"pipe organs," and relates, first, to valves for controlling the passage of air from
the wind chest to the sounding pipes, and, secondly, to means for preventing
ciphering" in such organs.
"
The object of the first part of this invention is to avoid the disadvantages
attendant upon the employment of pallets, and this I effect by using sliding valves,
constructed and arranged in the following manner, instead thereof.
A fixed tube is arranged to extend from the bottom of the wind chest to the
sound board, and within the said tube is a short moveable tube, the outer tube,
or both tubes, being provided with apertures. The said moveable tube is made to
slide, by any suitable motive power applied in any convenient manner and put in
action by the key, so as, when both tubes are provided with apertures to bring the
apertures in the two tubes into coincidence, or, when the outer tube alone has
apertures, so as to uncover the same, and thus allow the wind to pass from the
wind chest through the tubes to the sounding pipes. The moveable tube is brought
into its normal position, so as to close the apertures in the tube or tubes, by
means of a spring.
For the purpose of effecting the object of the second part of this invention, I
arrange a tube between the wind chest and the sound board, through which tube
the wind passes to the sounding pipes. In the said tube is an opening for the
escape of any leakage of wind that would otherwise cause ciphering. In ordinary
cases, I so arrange a flap valve of leather or other suitable material in connection
with the said opening that the opening will be closed by pressure caused by the

page_text: passage of any considerable amount of wind, such as would occur when the com-
munication, which admits the wind from the wind chest to the pipe, is opened.
In organs constructed with sliding valves, such as those forming the subject of
the first part of this invention, I, in some cases, arrange the inner tube to slitle
upwards in order to open or uncover the apertures for the escape of the air to
the sound board, and I, in some cases, place the opening in such a position and
so form the inner tube that the said opening will be covered when the wind from
the bellows is passing through the tube and it will be uncovered when the inner
tube is in its normal position.
Dated this 11th day of February 1887
VAUGHAN & SON,
Agents for the Applicant.

page_text: I, WILLIAM JELLICORSE LEDWARD, of Pentrich Vicarage in the County of Derby,
Clerk in Holy Orders, 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 :-
{:
This Invention consists of improvements in the construction of what are known as
Pipe Organs," and relates, first, to valves for controlling the passage of air from the
wind-chest to the sounding pipes, and secondly, to means for preventing ciphering in
such Organs.
The object of the first part of this Invention is to avoid the disadvantages attendant
upon the employment of pallets, and this I effect by using sliding valves, constructed
and arranged in the following manner, instead thereof.
A fixed metallic tube is arranged to extend from the bottom of the wind-chest to
the sound-board, and within the said tube is a short moveable tube, the outer tube or
both tubes being provided with apertures. The said moveable tube is made to slide by
any suitable motive power applied in any convenient manner, and put in action by
the key, so as, when both tubes are provided with apertures, to bring the apertures in
the two tubes into coincidence, or, when the outer tube alone has apertures, so as to
uncover the same and thus allow the wind to pass from the wind-chest through
the tubes to the sounding pipes. The moveable tube is brought into its normal
position, so as to close the apertures in the tube or tubes by means of a spring or by
gravity.
In order to effect the object of the second part of this Invention, I fix a tube
between the wind chest and sound-board through which tube the wind passes to the
sounding pipes. In the side of the said tube, a small aperture, covered by a flap
of leather, or other suitable material, so arranged, that it closes the aperture, when the
wind is passing, but opens it when the wind is shut off; thus allowing any leakage of
air to escape, which would otherwise find egress through the sounding pipes, and
cause ciphering.
Referring to the first part of this Invention, in all Organs in which compressed or
attenuated air is used as a motive power, I apply the metallic tubular sliding valve, as
heretofore described, to control that power; which it does by instantaneously stopping
or transmitting it, and I apply this same valve to all parts of the Organ, where a
pallet would ordinarily be used, or, where a valve of some kind is needed; as for
instance, in connection with the wind chest, the key-board, the draw-stops, and the
swell-shutters.
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;
First. A metallic tubular sliding valve, consisting of two tubes, one inside the

page_text: other, one of them moveable, the other fixed;-the moveable one opening and closing,
by its action, apertures, through which wind is transmitted; also I claim the appli-
cation of this valve to all parts of Organs where a pallet or valve of some kind is
required, to control the passage of atmospheric air.
Secondly. I claim the application of a tube between the wind chest and the sound-
board, having a lateral opening covered by a flap; to allow for the escape of any
leakage of wind, which would otherwise find its way into the sounding pipes, and
cause ciphering.