An Improved Tubular Pneumatic Action for Organs.
Year: 1888

page_text: Date of Application, 3rd Aug., 1888
Specification Accepted, 7th Sept., 1888
COMPLETE SPECIFICATION.
An Improved Tubular Pneumatic Action for Organs.
I JAMES JEPSON BINNS of Bramley near Leeds in the county of York, 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 work the pallets by pneumatic action, with the
same pressure of wind as supplies the pipes, the keyboard of which can be placed at
any distance from the organ; and to simplify the mechanism of the organ by dis-
pensing with the use of trackers, roller boards, lever bars, backfalls, and other details,
and my invention can be applied to any existing organ with the old style of sound-
board with sliders.
DESCRIPTION OF DRAWINGS.
Fig. 1 is an end elevation partly in section of my apparatus.
A is the wind chest constructed as ordinary, connected to the main bellows, by
pipe A, or wind trunk, provided with as many channels and pallets B, as keys,
also with springs C, and spring rail D, with a corresponding series of pneumatic
bellows E, upon the cover board F, through which are suitable channels G, within the
channels G, are a series of solid valves H, to open and close apertures J, J¹, each valve
having a spindle K, through the centre.
Each valve His connected at its upper end by arm L, to a small exhaust bellows M,
the pallets B are connected to the bellows E, by connecting rod B', the tubes N from
each key, are fixed to the hole connected to the small puffs P, in the puff board R.
Within each puff is a spindle S passing upwards through the cover board, upon each
spindle is a disc S¹ to raise the valve T, in the cover board, and to open and close
apertures T and T' in the top and bottom of the cover board, upon the spindles below
the cover board is a button U and in the puff board is an exhaust hole V, the button U
is adjustable so as to regulate the amount of exhaust from puff P. W is the top
board, X the slider, Y the table, Z are the pipes.

page_text: The action is as follows:
Air is passed through the tubes N by the movement of the keys, which raise the
corresponding button valves S lifting their spindles S and closing the apertures T
in the bottom of the wind chest A, and opening a similar aperture T' in the bottom
of the cover board F, causing the compressed air to escape from the exhaust bellows M,
which close, raising the solid valve H in the cover board F and closing the aperture J¹
in the wind chest A, shuts off the air from the bellows which immediately close
drawing down the pallets B which admits air into the channels O, and supplies any of
the pipes which are over the channels O.
Instead of the puff spindle being operated by the tubes from the keys, electricity
may be employed in lieu of the tubes.
The apparatus and palets being arranged to the size of the organ and the number
of pipes they have to supply the keyboard can be placed at any distance from the
organ and perfect repetition guaranteed.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. An improved system of applying pneumatic action to sound-boards, by
which the pallets can be worked with the same pressure of wind as supplies the pipes,
and the keyboard placed at any distance from the organ substantially as shown and
described.
2. The combination of the pallets B, bellows E and M, and valves H, T, S¹,
puffs P, substantially as and for the purposes shown and described.
Dated this 2nd day of August 1888
and