Imperial Valley press., 1917-04-21
PROFITS ARE
FOR
WITH
GOOD GINNING
Expert Tells of Best Meth
0ds for Ginning Duran
go in Imperial Valley

1t has been difficult to impress up
on the ginners in the Imperial valley
the Importance of ginning the Duran
IGc long-staple cotton smoothly and
free of neps. The Importance of prop
er handling and ginning of cotton, es-
pc ciaily in long-staple districts, can
not be over-emphasized. A good staple
produced from pure pedigreed seed, If
ginned green or damp or with gin
saws running too fast, may be damag-
ed in value from S. to $25 or more
bale. On the basis of recent investi-
cations the following suggestions are
otfered:
All cotton should be thoroughly dry
before it is ginned. It is not possible
fer the ginner to turn out from green
lC- damp cotton a good, smooth sample
free from gin cutting and nepping.
Gin manufacturers agree that rea
sonable speed of the saw shaft does
not materially affect the quality of
ginning, provided the brushes remove
the lint from the saw teeth. 1t has
been shown, however. that a proper
speed is from 325 to 375 revolutions
Per minutes on 12-inch saw and from
I3.5 to 425 revolutions per minute on
a 1O-inch saw.
Brushes should always be kept in
the best condition and should be set
so that the bristles reach to the bot
tom of the saw teeth.
The speed of the brush should be
from 1,500 to 1000 revolutions per
minute. Whenever possible a brush
driven Independently of the saw shaft
is recommended. By this arrangement
any change in the speed of the saw
shaft does not affect the speed of the
brush.
Other things being equal, it is inn
possible to lay too much stress OH
the condition of the roll in the ginning
Of long staple cotton. 1t is impossible
for the saws to pass through hard
loll without cutting or nepping the
fiber. What is known as slack or soft
roll should be used for ginning long
staple cotton. This roll should be run
jrst hard enough to prevent breaking,
and the feed should be adjusted so as
to keep it as nearly as possible of the
same consistency throughout it's en-
tire length.
The huller breast is recommended in
preference to the single-rib type for
ginning long staple. The chief reason
for recommending this type is that
more uniform roll can be made, and
each lock of seed cotton is more thor
oughly loosened before it reaches the
gin roll. The huller breast also takes
out the large trash.
The gins of the valley are all prac-
tically new and can be made to do ex-
jcellent work if the ginner understands
his machinery and is willing to make
the effort to turn OUT cotton that Is
considered "well handled"
After impressing upon the local GIN
ners the Importance of ginning Du
rango smoothly, it was found that ss/-
eral of them were willing to make the
necessary adjustments on their ma
chimes with a view to turning out first
class work, which they realized would
bring to them volum. of trade which
would more than reimburse them for
the extra care taken and the reduced
output The results obtained so far
have been very satisfactory to the
grower of Durango as well as the GIN
ner, as both have profted through the
results of good ginning.
Necessity For Good Baling
The cotton, as it passes from the
saws of the gin through the condenser.
should come out in smooth and even
layers; and if it is conveyed to the
press box by air blast. the ginner
should see that the cotton is not roped
by the suction Of the cir, which some
times twists it into short lengths
roughly resembling cotton rope.
tcoNrrNuED ON zu1 x1uN