GAN PALLET ATTACHMENTS
Year: 1884

page_text: THE
I, PERCY KNOTT, of Spring Bank Broad o'th Lane, Sharples, Bolton-le-Moors, in
the county of Lancashire, Student, do hereby declare the nature of the said
invention for ORGAN PALLET ATTACHMENTS to be as follows:-
A
Consisting of an arrangement whereby an organ pallet becomes equilibrium
under any pressure constant or sudden; I accomplish this by means of an oscillating
bellows secured to inner base of wind chest, covering large aperture open to outside;
the said bellows having an area including top and sides equal or thereabouts to
that of the pallet under which it is fixed and. connected through its centre and so
continued on to the back fall:-To compensate for the irregular vertical motion
of a pull down when in action where bellows are not used as above described,
I employ a loose dise of metal or other suitable material centrally perforated for
the wire to pass through and which when in action oscillates over large aperture
upon the inner base of windchest.
5

page_text: I, PERCY KNOTT, Student, Spring Bank, Broad'oth Lane, Sharples, Bolton-
le-Moors, do hereby declare the nature of my invention for ORGAN PALLET
ATTACHMENTS and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:--
Consisting of an arrangement whereby an organ pallet becomes equilibrium
under any pressure, constant or sudden: I accomplish this by means of an oscillating
bellows, open to outside:-the said bellows having an area, including top & sides,
equal or thereabouts, to that of the pallet under which it is fixed, & connected
through its centre, & so continued on to the backfall. To compensate for the
irregular virtical motion of a pull down, when in action, where bellows are not
used, as above described, I employ a loose disc of metal or other suitable material
centrally perforated for the wire to pass through & which when in action oscillates
over large aperture upon the inner base of wind chest; as per drawings sent.
The drawings which accompany the provisional specification shew the section of
an organ wind chest.
Fig I. A. represents the sound board, B, the pallet to which is attached the pull-
down secured to bellows G, and continued on to the backfall K.
When the wind is on, the pressure is counterbalanced by the bellows, which has
an external area equal or thereabouts to the area of the pallet, and thereby
lightening the touch upon the keys.
Fig II is the same as fig I without the bellows arrangement, the disc H oscillates
over the aperture, whilst the pull down is in action, the object of which is to
correct the irregular perpendicular movement which exists more or less in all
organs, the guard J is intended to prevent the lifting up of the disc, which might
occur occasionally, although the pressure within the windchest is quite sufficient to
hold it firmly in position.
Having now particularly described the nature of my said invention, and in what
manner the same is to be performed, I declare that what I claim is
1stly The use of bellows attached to the pull down wires in such a manner
described by which means the pressure on the pallet is relieved when in action.
2ndly Also the employment of a perforated loose disc to correct the irregular
action of a pull-down wire.
Dated this 5th day of January 1885