Improvements in the Actions of Organs and the like Musical Instruments.
Year: 1898

page_text: Date of Application, 9th Mar., 1898-Accepted, 14th May, 1898
COMPLETE SPECIFICATION.
Improvements in the Actions of Organs and the like Musical
Instruments.
I, LOUIS BERTRAM COUSANS, of Lindum Road, in the City and County of Lincoln,
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 this invention is to improve the construction of organs and the like
musical instruments, and to afford increased facilities to the player.
To attain these ends I employ a double action tilting valve of novel construction
for each manual key, pedal key, stop key, swell pedal connection, and any other
accessory movement: which, from its small area and being balanced offers very little
resistance to the compressed air against which it acts when attracted by an electro-
magnet placed immediately beneath, and will when so attracted shut off the inlet
of compressed air and open an exhaust connected with the interior of a small pneu-
matic motor governing the pallet (directly or indirectly) that admits compressed
air to the soundboard channel or groove.
In the accompanying drawings, which are considerably enlarged, I have shown
the particular arrangement to which this discription refers. E is the top board of a
wind box W having a small electro-magnet M fixed in by the poles being screwed
or forced into two holes RR bored to receive them; the inlet hole O being situated
between and a tilting valve X Y made of a shaped or bent piece of iron or any
other suitable material, but preferably bent iron, tilting at the axis I, so that when
the end X is attracted by the magnet M closing the inlet hole O, the end Y
uncovers the exhaust hole C in the board E, exhausting through the channels A
any suitable motor or motors that may be beyond. Upon the tilting valve X Y
being released (consequent upon the player releasing a key) the compressed air
upon the under side through the inlet hole O forces up the end X, closing the
exhaust C by pressing upon the top of the end Y forcing it downwards against the
face of the board E, thus charging through the channels A any suitable motor or
motors that may be beyond.
I do not bind myself to place this tilting valve horizontal, but leave to myself
the right to place it obliquely or reversed; in which case holding the said tilting
valve X Y against the board E by means of a small spring pressing against the said
tilting valve X Y at the axis I between the pins LL that keep the valve aforesaid
in position.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1
I A valve made of a shaped or bent piece of iron, or other suitable material,
actuated by an electro-magnet & tilting on an axis; governing the inlet & exhaust
an mamhmana

page_text: II The particular arrangement of magnet, valve, & air channels in the board E
and cover V for the particular purposes set forth.
LOUIS BERTRAM COUSANS,
Applicant.