A New Method of Obtaining Combinations of Organ Registers by - Pneumatic and Mechanical-Means.
Year: 1894

page_text: Date of Application, 30th June, 1894-Accepted, 17th Nov., 1894
A New Method of Obtaining Combinations of Organ Registers by
- Pneumatic and Mechanical-Means..
1, CHARLES FREDERICK BRINDLEY of Suffolk Road, in the City of Sheffield,
Organ Builder 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 my invention is to enable the performer to give expression by
means of the composition pedals, and for the more rapid transition of the com-
binations; also for obtaining greater control by one movement of the foot.
The annexed sheet of drawings clearly illustrates the invention, and will be
readily understood by anyone conversant with the art of organ building.
Fig. 1. Front view of indicators.
Fig. 2. Section of bellows which actuate the indicators, also shown in section.
Fig. 3. Plan of the pedals, catch, pneumatic bellows and valves with their
accessory parts.
air.
Fig. 4. Sectional view of the same.
A, is a portion of the console case enclosing the keyboards; B, a portion of the
kneeboard; C, the bellows which actuate the indicators marked D', to D'; E, the
tubes connecting the indicator bellows C, with the pedal box valves, the pedals are
marked F¹, to F; G1, G2, are the pedal springs; H, the automatic catch, and
I, the catch spring; K, is the pedal valve box chamber charged with compressed
L, is the drawstop valve box chamber also charged with compressed air.
M, bellows actuated by the drawstop knobs. N, bellows actuated by the com-
position pedals. O, the supply and exhaust valves admitting wind into and
exhausting from the tubes Q, which inflate the bellows controlling the valves
admitting wind to the pipe chamber, which is not shown. The tubes P, connect
the bellows M, with the drawstop knob slider (not shown): R, the pedal valves.
S, the springs which actuate the valves when released by the pedal. T, a series of
levers, and U, a series of bars, which raise the levers T, by means of wires and
leather buttons V, when the bellows N, are inflated. X a sticker lifting the
exhaust valve R.
By means of this invention, the full great, swell, and pedal organs, with their
couplers or any portion thereof may be more economically attached to any one
pedal. The performer may also arrange the drawknobs for solo work, then add
any combination with the pedals and return to the solo without altering the
drawstop arrangement, by one movement of the foot each time.
This change of combination is produced in one fourth the movement of the pedal,
hence the performer may, by slightly moving the pedal controlling any louder
effect give "expression" by producing a momentary crescendo effect for a single
beat or more continuously.
I also place prominently in view of the performer a series of "indicators" such
as those shown in Fig. 1, one of which will correspond with and be controlled by
one of the pedals instead of actuating the drawknobs.
The indicators may have the abbreviated names of the stops which are controlled
by the corresponding pedal marked upon them, or any indicating letter or
the like.
They may be advantageously placed over the swell claviers, thus enabling them
to be seen at a glance, without having to turn the head to examine the drawstop
knobs, or withdrawing the attention from the music.
Immediately behind the kneeboard 1 place an automatic catch H, shown in

page_text: Figs. 3, and 4, which holds the pedal in position when pressed to the bottom of the
slot in the kneeboard, it being so constructed that a pedal already held down as
shown in Fig. 4, by the catch engaging with a projection from the side of the
pedal, will be released by the action of another pedal subsequently pressed down,
the catch being forced forward by another similar projection upon the pedal last
used acting upon the inclined part of the catch. The pedal so released is
immediately raised to its normal position by the action of a spring G¹, or G².
The spring G, is compressed, and G2, is at rest. It will thus be understood that
one pedal only can be held down at a time, and that the said pedal may be instantly
released by pressing back the catch H, by means of the toc-piece H².
Suppose in any Specification of an organ to be built two or more composition
pedals are specified, their working and uses may be described as follows.
Suppose the stops to be acted upon be 4, or more in number and let the
numerals 1, 2, 3, 4, represent such stops. The depression of the first pedal would
bring in action 1, and 2, indicating the same on the indicator D, this would be
'accomplished in the following manner, the valve R, would be opened admitting
compressed air to the channel in conjunction therewith which would raise the
bellows N, lifting the bars T, which bars by opening the valves in the valve box
chambers I, admit air to the tube Q, which inflates the bellows controlling the
valves admitting wind to the pipe chamber which is not shown, thus causing stops 1
and 2 to be "on" or sounding.
The second would have associated with it, say stops 1, 2, 3, 4, and would act in
like manner and so on with as many pedals as were included in the Specification.
The crescendo effect would be used in the following manner; suppose 1st pedal
in operation and the player desires a temporary increase of tone, he can by partially
depressing and letting his foot dwell on No. 2 pedal obtain the effect of the stops
associated with the second pedal, and on removing his foot this 2nd pedal resuming
its position of non operation allows only the combination of stops associated with
No. 1 pedal to be in action.
Every pedal included in the scheme would be capable of similar action.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be or may be performed, I declare
that what I claim is:
1. The combination and arrangement of the various parts as hereinbefore
described, constituting a composition-expression action for organs.
2. In the construction of an 66 expression action in organs, the use of a catch
or catchboard H, in combination with the pedals, for the purpose specified,
substantially as described and illustrated.
3. In the construction of an "expression action" in organs, the combination of a
pedal F, sticker X, valve R, and spring S, constructed and arranged substantially
as hereinbefore described and shown in the drawings for the purpose specified.
Dated the 20th day of June 1894.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.