, 1891-09-05

O11C CA CfNA''o N4C . ~ 49,
first of all to do with the keys. The part Of
the KEY which the finger touches is only q
small portion of a lever, lying upon the key
board. To the end of this lever is attached, 10y
means of a pin a perpendicular pieceof wood
called the sticker, the upper end of which has a
pin which passes through one extremity OF
the horizontal backfall. The backfa'' is equal
ly balanced upon a pin which passes through
the centre. The other end Of the blckfan is
pierced by the lower extremity OF the tIacEer,
which has a button where it appears below the
backfall. The upper end of the tracker is
fastened to the p~ulldown. q piece of wire, one
end of which passes out of the windchest,
through a small hole, and the other is attached
to the pallet, which is fastened at one end to
the upper. lid of the wind chest and supported
at the other by a spring inside of the wind
chest. When you press dow the front of akey
the other end of it pushes up the sticker,
sticker raises the front of backfall and at the
same time forces down the other end Of back
fall: backfall pulls down tIacker; trGcker pulls
pulldown, pulldorn presses pallet, and pallet
allows the wind to rush from the windchest into
the pipe, and causes it to speak.
The sliders are long, thin strips Of board per-
forated so as to correspond with the holes ofthe
pipes, and lying between the top Of the wind
CDSSG dIlA DObINt-b'NtN III Ni4'SiA WV HltNS
stand. The slider is acted upon by the stop.
When the stop is in, the slider is out of posi-
ton, and the air is hindered in its progress to
the pipes. finding no orifce in the slider. But
when the stop is out, the holes in the slider are
under those leading to the pipes. and the air
rushes into them and makes them speak. |
NAV here remark, that sometimes the pipes
speak falsely, even when the organ is in
perfect tune. This is owing to the stop be-
ing either half drawn, or insutficiently pushed
in. Care should therefore be taken that the
stops are properly handled, for if they are only
partially drawn, the pipes will speak badly,
as a person does who speaks with his mouth
half closed.
There is something which is often a source Of
great annoyance to an ogEa4ist, and which
sometimes entirely spells the pleasure Of an
evenings entertainment. thisi is what is called
in organ nomenclature cipEeriug. You open
the instrument, take out the stops You re-
quire, signalise to the blower. but before y0u
touch the key You hear some pipe speaking
30 my !" you say, " the organ is cjPhering
and your heart begins to be troubled, and you
feel quite confused.
Now, if you hive attentively followed mo
through the foregoing description Of the parts
Of the organ, you will at once perceive that
air is passing into the pipe, and before this can
happen, the pallet must be opened. Bat how,
you may ask me, can the pallet be opened
without the key being pressed down ?" AS this
lisa point of the greatest importance to you,
I shall invite all your attention to it.
You will remember that l told you before that
the pallet was supported by q spring now, in
order to render the touch of the organ as light
as possible, organ builders, in the absence Of
the pneumatic lever, reduce the strength Of
this spring to a minimum any change in the
weather or other unf4vourable influence is liable
to make the spring unable to perform it's duty,
and a cipher is the result.
Without getting up from the organ bench, the
player can often remedy this defect, but, in the
first place, he must ascertain whether the open
ing of the pallet is caused by a particle of any
hard substance coming between it and the up
per part of the wind-chest, or from the front
end of the backfall remaining up if from any
misbehaviour in the back fall, this will be
indicated by the falling of the key, whereas,
if from any particle under the pallet, the key
will preserve its level in spite of the ciphering.
In order to restore the back-fall to its proper
position. it's is often sufficient to shake the key
rapidly, so as to Cause the upper end of he
sticker to come in sharp contact with the back
fall, the latter will resume its right place, the
pallet will at once close, and the trouble will
be over. Sometimes, after the back-fall has
played this trick for a while, it rights itself,
and, on returning to your organ, YOU find the