Honolulu star-bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1912-2010, 1916-10-10
Mill ENGINEERS v ARMY DISCUSS
THEIR PROBLEMS ON Second DAY

This swing" said Ramsay, would
take up the / ent in the blade and thus
rrolong the life OF the knife
Hind said that he believed that with
the knives closer together there was
Il SIS chance O. Greakage
The advent Of the Mestclaert
ert.vr is bringing about changes IL
several aspects of milling. Srma en-
eineers advocate a deep groove
throughout the three rollers of the
first mill. Others are in favor of
smooth rolls. whilst all are reverting
to smooth rollers with MeSSchaert
grooves in the other mills of the train.
FaVors Smith Rollers
Wyliie at OnOmea faYors the smooth
rollers while McCubbin said he al
ways used seven grooves to the inch
and finds them most satisfactory, and
others advocated either smooth rollers
or various forms of grooves.
Or. Norris of the planters expert
ment station then reverted to the
scrappers again, introducing meth
cd of stamping out scrappers which
was invented by Winter in which he
used a hydraulic press and a model
was passed around.
Other designs of scrappeTs were
then brought up, but Ramsey declared
that all the mills should have a stand
ard scrapper in which case they could
be made by the million and therefore
much cheaper. .s. r..
McCubbin Draws Design
McCubbin drew a design of a scrap
per which he used, showing how he
had fastened piece of steel in the
form of a lathe below the baggasse
scrapper which thoroughly carried off
all trash. ...."
In the pitch of the grooves, pitches
from two to four inches we're advo-
Gated. 49,. -..~.-.... ..-....
In modern milling, juice straining
has become an importaEt item and DR..
Norris said that mixed juices should
be screened much more thoroughly
than has been the case AS it results
in a better clarified Juice. He said
that 200 mesh screen was far better
than a $50 screen. -:
Days Session Ends - -
The last topic discussed was shred
ders and whether they increased the
extraction. j. a. Gibbs OF the Homo
lulu plantation said that while he did
not find the addition of q shredder in
creased the extraction 1t allowed
large amount OF sugar caue tc be run
through. TrUscott, however, believed
that the use of Shredder did show
gain in extraction and what was even
more important decrease in the
wear on the machinery. - -
When asked what horse power was
necessary to grind n ion Of cane,
Gibbs said that at his mill he found
fraction over s b. p. was needed and
10 h. p. with the shredder.
McCubbin reported that he never
used over $50 h. p. 70 grind IS tons
an hour and often less. A. Gartley
believed that more power was used
than necessary, but that the individual
engineers must figure out the proper
amount for their own mills.
Gartley also proposed that as the
opening of the shreoders was only Is
inches, the cane should be cut up
beforehand by knives on machine
in front of the shredder:
and centrifugaIs
MCoI Vi Iuc suOuoCS Iii tue
waiian Islands have replaced the old
style coolers on wheels with U-shaped
crystallizers equipped with starring
devices Very few, however, are fit,
ted with steam or water jackets, as
the temperature here is SO uniform
throughout the year that means for
the temperature in the /,
crystallizers are unnecessary.
I'm many sugar houses. however,
where the equipment Of still coolers
is good and the arrangement is salts
factory their use is continued, but
the saving in labor and the cleanliness
which accompanies crystallizer in
stallation makes the change from cool
er cars to crystallizers always well
come one. ~. ....'..... /
Many Sizes Used ......-.
"Crystallizers are in use in all sizes,
depending upon the capacity of the
pans, it being the aim in most sugar
houses to put no more than one
strike" in crystallizer at time in
order to observe the changes which
take place in the massecuite so as to
alter pan methods at will, which OBJ
servations could not be made If
strikes were dropped in crystalIizers
without regard to maintenance of