Improvements in Organs.
Year: 1892

page_text: Date of Application, 27th Dec., 1892-Accepted, 17th June, 1893
CUMI LEID
Improvements in Organs.
We, CHARLES SILVESKI HASKELL and WILLIAM EDWARD HASKELL, both
citizens of the United States, residing at No. 927 S. 15th Street, in the City of
Philadelphia, in the County of Philadelphia, and State of Pennsylvania, Organ
Builders, do hereby declare the nature and objects of our invention for IMPROVE-
MENTS IN ORGANS, and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statements :-
The principal objects of our invention are first, to provide the swell pedal with
simple and efficient attachments which normally operate when the swell is being let
on to pneumatically push out stops one after another until all the stops are out, and
which normally operate when the swell. is being let off to pneumatically push in
stops in a similar manner, whereby the power tone and quality of the swell are
enhanced and perfected; second, to provide simple, durable and efficient pneumatic
and mechanical draw-stop actuating apparatus and complemental devices accessible.
to the organist for controlling the same in such manner that the draw-stops may be
automatically and pneumatically pushed out or in, collectively or singly, or in
predetermined combinations or groups, or one after another as may be required;
third, to construct and arrange the various parts of the mechanical and pneumatic
draw-stop actuating mechanism for operation in such manner that the draw-stop
knobs are susceptible of the usual manipulations by the hand of the organist as soon
as said apparatus is not in action; fourth, to provide means for enabling the
organist to confine the operation of the draw-stop apparatus to certain groups of
draw-stops; and fifth, to provide a visual signal or telltale for indicating the names
of the draw-stops that have been brought into position by certain portions of the
draw-stop actuating apparatus for being collectively pushed out or in by the
subsequent operation of the other portions thereof.
Our invention consists of an organ provided with draw-stops, a swell pedal, pneumatic
draw-stop actuating mechanism, and a slide operated by the swell pedal and adapted
to control said pneumatic mechanism, the construction being such that the opening
and closing of the swell causes the slide through the instrumentality of the
pneumatic mechanism to let on and shut off draw-stops one after another, thereby
enhancing and perfecting the power, tone and quality of the swell.
Our invention further consists of a pneumatic draw-stop action comprising a series
of draw-stops, pneumatic mechanism for pushing each of said draw-stops out and in,
throttle-valves for starting and stopping the pneumatic mechanism to effect the
pushing out and in of stops, a slide for controlling the pneumatic mechanism to
permit of the simultaneous and successive shifting of all the stops, and means
accessible to the organist for operating the throttle-valves and slide.
Our invention further consists of a pneumatic draw-stop action comprising a
series of draw-stops, pneumatic mechanism for pushing each of said draw-stops out
and in, a slide for controlling the pneumatic mechanism, draw-plates for confining
the action of the slide to certain sets or divisions of draw-stops, and means
accessible to the organist for controlling the slide and draw-plates.
Our invention further consists of a pneumatic draw-stop action comprising a
series of draw-stops, pneumatic mechanism for pushing each of said draw-stops out
and in, combination valves respectively adapted to effect the pushing out of certain
stops in predetermined combinations or groups, and means accessible to the organist
for operating said combination valves; and
Our invention further consists of the improvements in draw-stop actions herein-
after described and claimed.
The nature, characteristic features and scope of our invention will be more fully

page_text: one Tomowing description taken in connection with the accompanying
drawings forming part hereof; and in which
Figure 1, is a side elevational view partly in section of the desk of an organ showing
a pneumatic draw-stop action and its accessories embodying features of our invention
in application thereto.
Fig. 2, is a front elevational view partly in section of the same showing all the
draw-stops and their accessories disposed at the right side of the center line of
the desk.
Fig. 3, is a top or plan view taken on the line 3-3, of Fig. 2, and showing a
series of longitudinally ranging main air channels and an auxiliary air chamber for
supplying air thereto and also showing a series of transversely ranging distribution
channels for conveying air from the main channels to the bellows that actuate the
valves controlling the pushing in and out of stops.
Fig. 4, is a section taken on the line 4-4, of Fig. 3.
Fig. 5, is a transverse section drawn to an enlarged scale and taken on the line 5-5,
of Fig. 4, showing the air pressure chamber broken away and also illustrating the
detail construction of the auxiliary air chamber.
Fig. 6, is a top or plan view taken on the line 6-6, of Fig. 5, and showing along
the center line thereof the inlet apertures through which air is admitted to the main
air channels.
Fig. 7, is a section taken on the line 7-7, of Fig. 6.
Fig. 8, is a central section drawn to an enlarged scale of one pair of draw-stop
bellows and their complemental valve-bellows and accessories.
Fig. 9, is a back view partly in section of the bellows illustrated in Fig. 8.
Fig. 10, is a diagrammatic plan view illustrating the attachments of the swell
pedal and their complemental tracker work; and
Figs. 11, 12 and 13, are detail views drawn to an enlarged scale in order to
illustrate certain portions of the valve chambers and their accessories which are
partly or wholly concealed in Figs. 1 and 2.
In the drawings a, is the frame-work or housing of the desk of an organ. b, are
manuals or banks of keys. c, is a bank of pedal keys. d, is the swell pedal.
d', is a cord or other connection that leads from the swell pedal d, to the swell
shades or shutters, not shown, and e, f, g, h, i and j, are draw-stops of which any
number may be employed. These parts co-operate with the other parts of the
organ, which are too well known to require illustration, in the usual manner, that
is to say, the respective keys of the different banks of keys permit notes of
different pitch to be sounded; the draw-stops when pulled out permit a corre-
sponding stop of pipes to speak when the keys are depressed, and when pushed
in prevent said stop of pipes from speaking even when the keys are depressed; and
the swell pedal affords means for opening and closing the swell box, whereby the
volume of sound is increased or diminished.
Having thus briefly designated so many and such parts of an ordinary pipe
organ as are essential to a comprehension of our invention, we will now describe
the construction and subsequently the mode of operation of the parts that embody
features of the same.
Referring now to the drawings and more particularly to Figs. 1, 2, 3 and 4
thereof, k, is an air pressure chamber or box to which a supply of air under
pressure is admitted through a pipe k', that communicates with a main reservoir k².
This air pressure chamber k, is preferably located in rear of the draw-stop knobs
and may be disposed in any convenient position, and more than one air pressure
chamber or box may be employed. In the present instance this air pressure
chamber k, is disposed at the right hand side of the organ and directly in rear of
the draw-stop knobs, so that the draw-stop rods e¹, ƒ¹, g', h¹, i' and j', extend
directly backwards through the front wall of the same. It may be remarked that
the draw-stop rods' e', f and g', and certain of their connections are located
directly in rear of and are concealed by the draw-stop rods h', i¹ and j', and their
corresponding connections and consequently the concealed parts are designated
1.

page_text: upon the drawings by dotted reference letters. These draw-stop rods e, f, g, h, i¹
and, are respectively connected with oppositely disposed bellows e³, and e³,
f and f, g' and g³, h³ and h³, i² and, and and j³, located in the air pressure
chamber k, and supported by means of suitable posts 1. The posts 1, are respec-
tively provided with conduits and, and f³, g* and 98, und h, and i³,
and and, (Figs. 1, 2, 11, 12 and 13) that communicate with the bellows e
and e, and f³g and g³, h and h³, and i³, and j and 3, and with a series of
valve chambers e and e, f and f, go and g', hª and h², i and, and and.
Each of these valve chambers is provided with two ports 8 and e, f and f, g
and gª, 1ª and h³, 18 and 1º, and and. The ports es, j,,, and ja, are
adapted to communicate with the atmosphere and the ports e³, f, g, h, and jo,
are adapted to communicate with the interior of the air pressure chamber k.
el and el, f10 and f", 710 and g₁, and h", and "1 and 10 and, are valves
adapted respectively to permit the conduits et and e, f and f³, and go, and 1,
and and and, to communicate with the atmosphere and with the interior
of the air pressure chamber. If both of the conduits that appertain to one pair of
bellows, or in other words, to one draw-stop, for example, the conduits and h³,
are in communication with the interior of the air pressure chamber k, which is
their normal position, then the exterior and interior of the bellows and ³, are
subjected to the same pressure, to-wit-the pressure of the air chamber k, and
consequently are in equilibrium, so that the draw-stop knob h, may be pushed in or
pulled out manually and will remain in either position. The above description, of
course, applies to the draw-stops e, f, g, i and j, and their complemental bellows
and accessories. However, when any one of the bellows e, f, g, h, and j², is
permitted to communicate with the atmosphere by the lifting of its complemental
valves e and ell, fo and f", 10 and 911, 71 and h", and " and " and ", it
collapses and thus causes its corresponding draw-stop to be pushed out. Similarly
when any one of the bellows e, f, g, h³, i3 and 3. is permitted to communicate
with the atmosphere by the lifting of its complemental valves e and e", and f",
go and g, 10 and ", 10 and and jo and j, it collapses and thus causes its
corresponding draw-stop to be pushed in. It being understood that as soon as the
valves and el, f10 and f1, 910 and 9", 10 and 4", 10 and 2" and 10 and 1,
are permitted to descend the equilibrium of the draw-stop bellows is re-established
and the draw-stops are free to be pushed in and pulled out manually in
the usual manner. It may be remarked that the movements of the draw-stop
rods e, f, g, h, and 1, are availed of for operating the sliders that control the stops
of pipes, not shown. Of course this result may be accomplished by means of many
of the well known mechanical or pneumatic devices that are commonly employed for
this purpose by organ builders and others skilled in the art. In the present instance
this result is accomplished by means of bellows, (not shown,) or " 'pneumatics
as they are sometimes termed. These "pneumatics are controlled by ports m
and their complemental valves m¹; and the valves m³, are actuated by means of
spindles m² and centrally pivoted spring controlled levers m³, which latter engage
and are actuated by cams m, carried by each pair of complemental draw-stop
bellows. and e¹³," and f¹³, g¹ and g¹³, " and ¹³, 12 and 13 and j and jis, are
valve bellows mounted upon a suitable board n, and adapted respectively to lift
the valves elo and ell, f10 and f, g10 and 9", 10 and 11,1 and 1 and 10 and j¹¹;
and thus cause the draw-stops e, f, g, h, i, and j, to be shifted. The valve
bellows e, f, g¹², 1, 2 and j", operate to cause the draw-stops to be pushed out
and are consequently referred to as the "on" bellows, and the valve bellows e", f",
g, and 3, operate to cause the draw-stops to be pushed "in" and are
consequently referred to as the "off" bellows. e, f, g, h, and 4, Figs. 1
and 3, are main channels running transversely of the organ and adapted to convey
a supply of air to the "on" bellows e, f, g, h," and ". For this purpose
grooves and complemental inlets and outlets es, ƒ³, g¹³, 15. ¿15 and 1, Fig 3,
communicating with the main channels and with the " on "bellows are cut or
otherwise formed in the board n. e, f, g, h, i¹ and j¹, are main channels
"

page_text: "
13
"""
18
16
"
adapted to convey a supply of air to the "off" bellows e¹³, f13, 913, h¹³, 13 and 13.
For this purpose grooves and complemental inlets and outlets e, f, g, h, i
and, communicating with the main channels and with the "off" bellows, are cut
or otherwise formed in the board n. The channels e, f, g, h, 14 and 14, are
connected with the on bellows e, f, g, h, 2 and 3, in such manner that.
when air is successively admitted to the channels e14, 14, 14, 114, 14 and 11, the draw-
stops are pushed out one after another in proper order or sequence for the produc-
tion of a crescendo effect. Of course this order or sequence will depend upon the
number and quality of the stops of the organ and upon the taste of the organ
builder; the object being to bring on all the stops one after another in such order
that the best crescendo effect is attained. In the present instance the draw-stops
are pushed out in the following order-e, f, g, h, i and j. The channels e, f, g
1,1 and 18, are connected with the "off" bellows e13, 18, g13, h¹³, 13 and 13, in
such manner that when air is successively admitted to the channels e¹, f, g, h,
and the draw-stops are pushed in one after another in reverse order, and
thus produce the reverse of the crescendo, i.e. a decrescendo effect.
In the present
instance the draw-stops are pushed in, in the following order-j, i, h, g, f and e. If
a supply of air is admitted into all the channels e, f, g, h, 14 and 1 at the
same time, the bellows e" f1, 912, 13, 12 and 112, are all expanded with the result
that all of the draw-stops e, f, g, h, i and j, are pushed out at once. Similarly if a
supply of air is admitted into all the channels ele, 18, 10, 16, 18 and j¹ at the same
time, the bellows e¹³, f¹³, g¹³, 113, 13 and j¹³, are all expanded with the result that all
of the draw-stops e, f, g, h, i and j are pushed in at the same time.
If a supply of
air is admitted to certain of the channels e, f, g14, 14, 14 and 1, for example,
into the channels e" and ", it follows that the stops e and f, will be pushed out
either at the same time or successively according as the supply of air is admitted
to both of the channels at the same time or first to one and then to the other of
them. Similarly if a supply of air is admitted into certain of the channels el, 16,
91, 1, 1 and 16, for example, into the channels 916, 16, 16 and 16, it follows that
the stops g, h, and j, will be pushed in either at the same time or successively
according as the supply of air is admitted to all of these channels at the same time
or first to one and then to the other of them. The upper open portions of the
apertures or ducts e18, 18, 18, 18, 18, 18, 19, 19, 91, 119, 11 and 119, that serve to
admit air to the main channels, are disposed in a straight line or row, Fig. 6.
upper open portions of the apertures or ducts e¹8, 18, 18, 18, 18 and 118, that serve
to admit air to push out stops, are disposed to one side of the center of said straight
line or row and the upper open portions of the apertures or ducts e, f, g, h,
and 11, that serve to admit air to push in stops, are disposed at the other side of
the center of said straight line or row. 0, is a slide adapted to close the upper open
portions of the apertures or ducts e18, 18, 18, 118, 18 and 18, or the upper open
portions of the apertures or ducts e, f, 9, 10, and 1, and also to open certain
of the former, for example, the inlets 18, 18, 18, 18 and 18, and to close the
corresponding inlets e, f, g, hand 19, of the latter. This slide o, affords
means for opening or closing all or a portion of the inlet apertures e18, 18, 18, 18, 18
and one after another thus causing the draw-stops to be pushed out one after
another and also for opening or closing all or a portion of the inlet apertures elo, 19,
g1, 1, 1 and 11, one after another, thus causing the draw-stops to be pushed in
one after another. Moreover, this slide o, affords means for uncovering all or a
portion of the inlet apertures e¹8, 18, 18, 18, 18 and 18 at the same time, thus causing
all or a group of the draw-stops to be pushed out at the same time and also for
uncovering all or a portion of the inlet apertures e¹º, f1, 91, h¹º, ¿¹ and 19 at the
same time, thus causing all or a group of the draw-stops to be pushed in at the
same time. Certain of the apertures e18, 18, 18, 18, 18, 18, 19, ƒ19, 91, h¹, 11 and 1º,
are curved and certain of them are straight, (Figs. 3, 4, 6 and 7) and the lower
portions of them are disposed in three parallel lines or rows; in the present
instance the lower portions of the apertures els, h18, e1 and 1, are disposed in one
straight line or row, the lower portions of the apertures fis, ¿18, f1 and ¹³, are
The

page_text: disposed in a second straight line or row, and the lower portions of the
pertures d'", gle and j", are disposed in a third straight line or row.
g
18 18
p³, are three perforated draw-plates adapted respectively to open and
close the apertures e18, 18, e19 and 10, 18, 18, 19 and 19, and y, js, y and j¹º, in
order to prevent the admission of air to the corresponding main channels even when
the slide 0, is in position for opening them. These draw-plates », pl and p², thus
afford means for excluding certain groups of draw-stops, and in the present instance
the groups comprising respectively the draw-stops e and h, fand i and g and j from
the action of the slide o. It may be remarked that in most instances the stops
controlled by each of the draw-plates would appertain to one of the organs into
which the complete instrument is conventionally divided, so that the operation of
the slide o, could be confined to one or more of the divisions of the instrument, for
example, to the swell organ. The lower open extremities of the apertures 18, 18,
g18, 18, 18, 18, e, f, g, h¹o, ¿¹º, and 10, are adapted to communicate with the interior
of an auxiliary air pressure chamber y, to which a supply of air is admitted through a
pipe g', from the main air reservoir kt. », is a throttle valve for controlling the
admission of air to the apertures e¹s, 18, 18, 18, 18 and 18, that tend to operate to effect
the pushing out of stops., is a throttle-valve for controlling the admission of air
to the apertures e, f, g, h, 1, and jo, that tend to operate to effect the pushing in
of stops. The slide o, throttle-valves and ¹, and draw-plates p, p' and p³, afford
means whereby all or a portion of the draw-stops e, f, g, h, i and j, may be pushed
out or in successively or collectively or in predetermined groups. In practice it is.
frequently necessary or desirable to push out draw-stops in groups other than those
above referred to and commonly designated "combinations" by organists, organ
builders and others. This result is accomplished by the employment of an ancillary
air pressure chamber s, supplied with compressed air from the main air reservoir ³,
and provided with complemental valves, hereinafter designated combination valves,.
and of which three s', s2 and 3 are shown. e20 and 20 are holes bored in the bottom.
wall of the channels " and " and 921, ", * and, are holes bored in the bottom
walls of the channels gld, 1, 16 and 16. These holes e, f, g, h, and, are
all adapted to be brought into communication with the interior of the ancillary air
pressure chamber by the opening of the valve s¹, so that when the valve s¹, is.
opened the stops e and f, are pushed out and the stops g, h, i and j, are pushed in.
3, f", 9", 1" and ", are holes bored in the bottom walls of the channels e, f,.
9, and 14, and 2, is a hole bored in the bottom wall of the channel. These
holes e, f, g, 122, 22 and 128, are all adapted to be brought into communication
with the interior of the ancillary air pressure chamber s, by the opening of the
valve s³, so that when the valves, is opened the stops e, f, g, h and j are all pushed.
out and the stop i, is pushed in.
f, hand, are holes bored in the bottom walls of the channels f, and j
and e, 92 and, are holes bored in the bottom walls of the channels e¹6, 916 and le
These holes f, 24, 24, 25, 925 and 12, are all adapted to be brought into communica-
tion with the interior of the ancillary air pressure chambers, so that when the
valves, is opened the draw-stops f, h and j, are pushed out and the draw-stops e, g
and i, are pushed in. We have described means for pushing out three "combina--
tions of stops" to-wit: e and f; e, f, g, hand j; and f, h and j. However, it must
be borne in mind that any number of different combinations may be had by
employing additional valves and their accessories similar to the valves s', s2 and -
and their accessories. The valves s¹, s³ and s³, serve to push out draw-stops as has
been already explained and these draw-stops may be subsequently pushed in either
by hand in the usual manner or by means of the throttle valve r' and its accessories..
The slide o, is preferably composed of celluloid or other similar material, and works
between two sheets of leather o' and ', Fig. 7, which serve to prevent undue
leakage. The draw-plates p, p¹ and p², also work between sheets of leather pa
and p, Fig. 7, or analogous material in order to avoid undue leakage. The slide,
draw-plates, throttle-valves and combination valves may be operated through the-

page_text: instrumentality of any suitable mechanism under the control of the organist. In
the present instance the throttle valves and 7', are controlled by the sidewise
motion of the foot of the organist as the same rests upon the swell pedal d. This
result is accomplished by the employment of lugs t and t', pivotally attached to the
swell pedal d, in range of the toe of the organist, and connected together by means
of a spiral spring . The movement of the lug t, towards the left in Fig. 2,
imparts a rocking motion to the arm 3 of the roller t, and the rocking motion of
the roller t, causes the arm to thereof to open the throttle valve r. Similarly the
motion of the lug t¹ toward the right in said figure, acting through the instru-
mentality of the roller to and its complemental arms, causes the throttle valve ¹, to
be opened. The slide o, is connected with the swell pedal d, through the instru-
mentality of suitable tracker-work o³, and is shifted towards the right in Fig. 1,
when the toe of the swell pedal is pushed forward in order to open the swell
shutters or shades, thereby opening the channels e, f, g, h, and j", and thus
pushing out the draw-stops one after another. When the toe of the swell pedal is
released in order to close the swell shades or shutters, the slide o, is shifted towards
the left in Fig. 1, thus opening the channels e¹6, 16, 916, h¹, ¿¹ and jie and permitting
the draw-stops to be pushed in one after another and in reverse order.
u, is a spring controlled indicator or telltale that has the names of the stops
printed or painted upon it and disposed in the same order in which the draw-stops
are pushed out or in by the normal operation of the slide o. This telltale or
indicator is located behind a suitable window in sight of the organist and is
connected and caused to move with the slide o, through the intervention of a
suitable flexible connection u', in such manner that the names of the stops that
correspond with the apertures that are uncovered by the slide are visible through
the window for purposes to be presently described. The draw-plates p, p' and p²,
are respectively controlled by sets of complemental push buttons and v', which
operate through the instrumentality of suitable tracker-work, to effect the
required movements of the draw-plates in the direction of their lengths. The
combination valves s¹, and s³, are opened and closed through the instrumentality
of combination pedals w, w' and w² accessible to the organist and their complemental
tracker-work 10*.
The mode of operation of the hereinabove described draw-stop action is as
follows
--
The organist may play upon the banks of manuals, and pedal keys c, and may
shift the draw-stops e, f, g, h, i and j in and out and operate the swell-pedal d, in the
usual manner. The organist may enhance, perfect and complete the tone, power
and quality of the swell pedal by turning his toe towards the left in Fig. 2, thus
effecting the opening of the throttle valve r, and then pushing his toe forward thus
effecting the movement of the slide o, towards the right in Fig. 1. The result of
these movements is two-fold, the shutter or shade of the swell-box is opened and
the draw-stops are pushed out one after another in proper order for the production
of a grand crescendo. It being understood that the draw-plates p, p¹ and p², are
in "on" position. Similarly the organist may turn his toe towards the right in
Fig. 2, thus effecting the opening of the throttle valve r', and then release the
pedal d, thus effecting the movement of the slide o, toward the left in Fig. 1 ; the
result of these movements is also two-fold, the shutter or shade of the swell-box is
closed and the draw-stops are pushed in one after another in reverse order for the
production.of a diminuendo or decrescendo effect. The organist may push all the
draw-stops out at the same time by first shifting the slide o, towards the right in
Fig. 1, by pushing his toe forward and then turning his foot towards the left in Fig. 2,
in order to open the valve . Similarly the organist may push all the draw-stops
.in at the same time by first shifting the slide o, towards the left in Fig. 1 by
releasing the pedal d, and then opening the valve by turning his toe towards the
right in Fig. 2. In some instances it is, necessary or desirable to confine the i
operation of the slide o, to certain groups of stops, for example, to the stops of

page_text: the great pedal or swell organs. The organist may accomplish this result by pressing
upon one or more of the buttons »or, which serve to shift the corresponding
draw-plate or plates into position for excluding or admitting a supply of compressed
air to the main channels which appertain to the required group of stops, for
example, the stops of the great, pedal and swell organs.
The organist in playing is frequently required to pull out stops in certain groups
which are often availed of in musical compositions and are commonly designated
"combinations" and to push in all the other stops. This result is accomplished by
means of the combination pedals w, w¹ and w².
It may be remarked that as soon as the supply of compressed air is cut off from
the valve bellows that appertain to any of the respective draw-stops, the latter will
remain in the positions that they occupied when the supply of air was cut off, and
are perfectly free to be pushed in or drawn out by hand, and the supply of air is
normally cut off from the valve bellows, because the valves r and ' and s', s' and s³,
are normally closed and are always returned to the closed position either by gravity
or by the influence of springs as soon as the lugs t and t', and pedals w, w' and w³,
are released by the organist. Obviously this result is very important and of great
practical value, because it enables the organist to push out draw-stops pneumatically
and to then operate them manually without causing them first to be pneumatically
returned to their initial positions.
Before the organist turns his foot either to the left or to the right in order to actuate
the valves and r, it is important that he should know the position of the slide o,
and consequently the names of the draw-stops that would be actuated by such
movement of the foot. This information may be had at a glance by reference to
the indicator or telltale u, and if the slide o, is thus found to be in incorrect position
it may be properly adjusted by shifting the swell pedal d, as may be required,
before the foot is turned sidewise.
It will be obvious to those skilled in the art to which our invention appertains
that some of our improvements may be employed without the others and that
modifications may be inade in details of construction and in the disposition of parts
without departing from the spirit of the invention, hence we do not limit ourselves
to the precise arrangement hereinabove set forth and illustrated in the accom-
panying drawings; but
Having thus ascertained the nature and objects of our invention and in what
manner the same is to be performed, we declare that what we claim is :-
1. An organ provided with draw-stops, a swell pedal, pneumatic draw-stop
actuating mechanism and a slide connected with the swell pedal and adapted to
control said pneumatic mechanism, the construction being such that the opening and
closing of the swell causes the slide through the instrumentality of the pneumatic
mechanism to shift the draw-stops out and in one after another thereby enhancing
and perfecting the tone, quality and power of the swell.
2. An organ provided with draw-stops, pneumatic mechanism adapted to be
brought into action for pushing each of said draw-stops out and in, throttle valves
for the pneumatic mechanism, a slide for controlling the pneumatic mechanism to
permit of the simultaneous and successive shifting of the draw-stops, and means
accessible to the organist for operating the throttle valves and slide.
3. An organ provided with draw-stops, pneumatic mechanism adapted to be
brought into action for pushing each of said draw-stops out and in, throttle-valves
for said pneumatic mechanism, a slide for controlling the pneumatic mechanism,
draw-plates for confining the action of the slide to the pneumatic mechanism
appertaining to certain sets or divisions of draw-stops, and means accessible to the
organist for controlling the slide, draw-plates and throttle valves.
4. An organ provided with draw-stops, pneumatic mechanism for shifting each of
said draw-stops out and in, a slide adapted to control said mechanism and
combination valves respectively adapted to simultaneously effect the pushing out of
draw-stops in preletermined combinations or groups and the pushing in of the..

page_text: remaining draw-stops, and means accessible to the organist for operating said
valves.
5. An organ provided with draw-stops, an air pressure chamber, a pair of bellows
respectively connected with each of the draw-stops, air-conduits leading from the
interior of each bellows and adapted to normally communicate with the interior of
the air pressure chamber to maintain said bellows in equilibrium and permit of the
pushing in and out of stops by hand, valves for permitting said conduits to
communicate with the atmosphere to pneumatically effect the movement of the
draw-stops, and means accessible to the organist for actuating said valves, sub-
stantially as and for the purposes set forth.
6. An organ provided with draw-stops, pneumatic mechanism for pushing each of
said draw-stops out and in, two sets of air channels or passages whereof one set
effects the pushing in and the other the pushing out of stops, throttle valves for
admitting a supply of air to the respective sets of channels, a slide for opening and
closing all the air channels of each set and for simultaneously opening one and
closing the other of the corresponding channels that appertain to the same draw-
stop, and means accessible to the organist for operating the throttle-valves and
slide, substantially as and for the purposes set forth.
7. An organ provided with draw-stops, pneumatic mechanism for pushing each
of said draw-stops out and in, two sets of air channels, whereof one set of channels
operates to effect the pushing out and the other set to effect the pushing in of
draw-stops, throttle-valves for admitting a supply of air into the respective sets of
channels, a slide for opening and closing all the air channels of each set and for
simultaneously opening one and closing the other of the corresponding channels
that appertain to the same draw-stop, draw-plates for opening and closing all the
channels appertaining to certain groups of stops, and means accessible to the
organist for operating the throttle valves, slide and draw-plates, substantially as
and for the purposes set forth.
8. An organ provided with draw-stops, pneumatic mechanism for pushing each
of said draw-stops in and out, two sets of air channels and their accessories, whereof
one set of channels operates to effect the pushing out and the other set the pushing
in of draw-stops, sets of ancillary openings for admitting air to said channels to
simultaneously effect the pushing out of certain stops in combinations or groups
and the pushing in of the remaining stops, combination valves for each of said sets
of openings, and means accessible to the organist for operating said valves,
substantially as and for the purposes set forth.
9. In an organ, a series of draw-stops, pneumatic mechanism for pushing each of
the draw-stops in and out, two sets of valves and their complemental bellows,
whereof one set effects the pushing out and the other the pushing in of draw-stops,
two sets of air channels, and two sets of grooves whereof one set communicates
with one set of channels and bellows and whereof the other set communicates with
the other set of channels and bellows, substantially as and for the purposes set
forth.
10. An organ provided with pneumatic draw-stop actuating mechanism
comprising draw-stops, an air pressure chamber, pairs of bellows respectively
connected with each of the draw-stop rods, air conduits leading from each of the
bellows and provided respectively with ports adapted for communication with the
atmosphere and with the air pressure chamber, valves for controlling said ports,
valve-bellows for operating said valves, an auxiliary compressed air chamber, two
sets of air channels from the auxiliary chamber to the valve-bellows, a throttle-
valve for each set of channels, a slide for opening and closing said channels,
perforated draw-plates for closing the channels appertaining to certain groups of
draw-stops, and pedal devices for actuating the throttle-valves and slide, substantially
as and for the purposes set forth.
11. In an organ, draw-stops, a series of pairs of bellows provided with valves
and adapted to operate the draw-stops, an auxiliary compressed air chamber, two
sets of air channels for supplying air to effect the reversal of the valves of said

page_text: bellows, a throttle-valve appertaining to each set of air channels, and pedal
attachments accessible to the organist for operating said throttle-valves, substantially
as and for the purposes set forth.
12. In an organ, draw-stops, a series of pairs of bellows for operating the draw-
stops, an air pressure chamber enclosing said bellows, conduits leading to each of
the bellows and respectively adapted for communication with the atmosphere and
with the air pressure chamber, valves and their complemental valve-bellows for
said conduits, an auxiliary compressed air-chamber, two sets of channels for
actuating the valve-bellows, a throttle-valve appertaining to each set of channels
and pedal attachments accessible to the organist for operating said throttle-valves,
substantially as and for the purposes set forth.
13. In an organ, draw-stops, a series of pairs of draw-stop bellows for operating
the draw-stops, two sets of valves and their complemental valve bellows for
reversing the position of the draw-stop bellows, an auxiliary compressed air
chamber, two sets of air channels communicating with the auxiliary conipressed nir
chamber and with the respective sets of valve bellows; a throttle-valve appertaining
to each set of air channels and pedal devices accessible to the organist for
operating said valves, substantially as and for the purposes set forth.
14. In an organ, a series of pairs of bellows tending to counterbalance each
other and adapted to operate the draw-stops, an auxiliary compressed air chamber,
two sets of air channels for supplying air to effect the reversal of said bellows,
throttle-valve appertaining to each set of channels and means accessible to the
organist for operating said throttle-valves, substantially as and for the purposes
set forth.
15. In an organ, draw-stops, a series of pairs of bellows adapted to operate the
draw-stops, an auxiliary compressed air-chamber, two sets of air channels for
reversing the position of said bellows, a throttle-valve appertaining to each set of
channels and a slide for opening and closing the channels of either set simultaneously
and successively, substantially as and for the purposes set forth.
16. In an organ, draw-stops, a series of pairs of bellows for operating the draw-
stops, an air pressure chamber enclosing said bellows, conduits leading to each of
the bellows and respectively adapted for communication with the atmosphere and
with the air pressure chamber, valves and their complemental valve bellows for
each of said conduits, an auxiliary compressed air chamber, two sets of air channels
for actuating the valve-bellows, a throttle-valve appertaining to each set of air
channels, and a slide for opening and closing the channels of either set simultaneously
and successively, substantially as and for the purposes set forth.
17. In an organ, draw-stops, a series of pairs of draw-stop bellows for operating
the draw-stops, two sets of valves and their complemental valve bellows for
reversing the position of the draw-stop bellows, an auxiliary compressed air
chamber, two sets of air channels communicating with the auxiliary compressed air
chamber and with the respective sets of valve-bellows, a throttle-valve appertaining
to each set of air channels, and a slide for opening and closing the channels of
either set successively and simultaneously, substantially as and for the purposes
Bet forth.
18. In an organ, draw-stops, a series of pairs of bellows provided with valves
and adapted to operate the draw-stops, an auxiliary compressed air chamber, two
sets of air channels for supplying air to effect the reversal of the valves of said
bellows, a throttle-valve appertaining to each set of channels, a slide for opening
and closing said channels, and a pedal accessible to the organist for operating said
throttle-valves and slide, substantially as and for the purposes set forth.
19. In an organ, draw-stops, a series of pairs of draw-stop bellows adapted to
operate the draw-stops, an auxiliary compressed air-chamber, two sets of air
channels for supplying air to effect the reversal of the draw-stop bellows, a throttle-
valve appertaining to each set of air channels, a slide for opening and closing said
air channels, perforated draw-plates for closing certain of the air channels, and
B

page_text: means accessible to the organist for actuating said slide, draw-plates and, throttle-
valves, substantially as and for the purposes set forth.
20. In an organ, draw-stops, a series of pairs of bellows for operating the draw-
-stops, an air pressure chamber enclosing said bellows, conduits leading to each of
the bellows and adapted for communication with the atmosphere and with the air
pressure chamber, valves and their .complemental valve bellows for said conduits,
an auxiliary compressed air chamber, two series of air channels for actuating the
valve bellows, a throttle-valve appertaining to each set of air channels, a slide for
opening and closing said air channels, draw-plates for closing certain of the air
channels, and means accessible to the organist for operating said slide, throttle-
valves and draw-plates, substantially as and for the purposes set forth.
21. In an organ, draw-stops, a series of pairs of draw-stop bellows connected
with the draw-stop rods, two sets of valves and their complemental valve bellows
for reversing the position of the draw-stop bellows, an auxiliary compressed
air chamber, two sets of air channels communicating with the auxiliary
compressed air chamber and with the respective sets of valve-bellows, a
throttle-valve appertaining to each set of air channels, a slide for opening and
closing said air channels, draw-plates for closing certain of said air channels and
means accessible to the organist for actuating said slide, throttle-valves and draw-
plates, substantially as and for the purposes set forth.
22. In an organ, a series of draw-stops, pneumatic apparatus for actuating said
draw-stops, two sets of air channels for controlling the admission and exhaust
valves of said pneumatic apparatus, throttle-valves controlling the respective sets
of air channels and means accessible to the organist for actuating said throttle-
valves, substantially as and for the purposes set forth.
23. In an organ, draw-stops, pneumatic draw-stop operating apparatus and a
pedal and its accessories susceptible of four movements, one for causing draw-stops
to be pushed out, a second causing draw-stops to be pushed in, a third for causing
the draw-stops to be pushed out successively and collectively and a fourth for
causing the draw-stops to be pushed in successively and collectively, substantially
as and for the purposes set forth.
24. In an organ, draw-stops, pneumatic draw-stop operating apparatus and its
complemental throttle-valves and slide, a pivotal pedal, connections between the
pedal and slide, lugs movable transversely of the pedal, and connections between
the throttle-valve and lugs, substantially as and for the purposes set forth.
25. In an organ, draw-stops, pneumatic draw-stop operating apparatus and its
complemental slide, a visual indicator or telltale, a pedal for operating said slide,
and connections between said slide and indicator, substantially as and for the
purposes set forth.
26. In an organ, draw-stops, pneumatic draw-stop operating apparatus and its
complemental slide, a visual indicator or telltale and means interposed between the
slide and indicator, substantially as and for the purposes set forth.
27. In an organ, draw-stops, pneumatic draw-stop actuating apparatus, perforated
draw-plates for throwing the pneumatic apparatus appertaining to certain groups
or divisions of draw-stops out of action, buttons accessible from the key-board, and
link-work connected with the buttons and draw-plates, substantially as and for the
purposes set forth.
1
.
28. In an organ, draw-stops, two sets of draw-stop bellows, whereof one set is
adapted to push out draw-stops and the other set is adapted to push in draw-stops,
two sets of air channels appertaining respectively to the sets of draw-stop bellows,
an ancillary air chamber, openings from said chamber into certain of the channels
that operate to push out stops and to the channels that operate to push in the
remaining stops, valves for controlling said openings, and means accessible to the
organist for operating said valves, substantially as and for the purposes set forth.
29. An organ provided with a series of draw-stops, a swell pedal provided with
pivotal lugs, pneumatic mechanism for pushing each of said draw-stops out and in,
(7

page_text: two sets of air channels whereof one set of channels operates to effect the pushing
out and the other set to effect the pushing in of the draw-stops, throttle-valves, a
slide, connections between the throttle valves and pivotal lugs, connections between
the swell pedal and slide, a visual indicator, connections between the indicator and
slide, draw-plates, push buttons, connections between the push buttons and draw-
plates, and combination pedals and their accessories, substantially as and for the
purposes set forth.
Dated this 27th dov of Decembe- A D 1900
CHARLES SILVESKI HASKELL.
WILLIAM EDWARD HASKELL.
W. P. Thompson & Boult,
Agents for the Applicants.