The Hawaiian gazette. [volume] (Honolulu [Oahu, Hawaii]) 1865-1918, 1911-07-21

very great saving is effected on this
item. The labor necessary to operate
the centrifugal clarifer, it was said at
the mill ON Tuesday, in any case Will
not be over thirty per cent of what
is now necessary for the settling tanks
and skilled labor is not required. The
space occupied by the new apparatus
is small compared with that demanded
for the settling tank system and the
installation would not require any
change in the arrangement of the fac
tory.
The present method of clariication
is difficult of scientific control and
scarcely permits of any scientific super.
vision, such as may be exercised over
most of the other machinery. The new
system is practically ''foo1 proof'' and
its high efficiency may be maintained
with the minimum amount of trouble.
MIR. Kopke is naturally enthusiastic
over the machine and he is free to
admit that some of his statements may
be questioned but he insists that each
has been proven and the data collected
was recorded under observation Of dis
interested parties in relation to thu
work the machine has done during the
past season. Excellent results have
been obtained with centrifugal ma
chimes involving special and undesir-
able features in the bowl of the ma
chine, at the same time operating at
high speeds, but it has been found in
this case, that with proper design and
arrangement, the desired result can be
49,
very little power and with an imper-
forate bowl that is almost as simple
as that used in the regular sugar-drying
centrifugal. To the experienced eye
no complicating features, either in the
design or operation of the machine, ara
to be found and its extreme simplicity
may be illustrated by the fact that the
bowl in Tuesdays demonstration was
brought to full stop from high speed
and all of the mnd-about 500 pounds
thoroughly cleaned out in two min
utes.
Four machines would clarity all the
Juice from a Thousand tons of cane
a day and the machine may be de-
signed for almost any desired clarity
ing efficiency. The excellent results
attained are attributed to its simplicity
as much as anything else. A compli-
Gated machine is almost prohibitive for
many reasons.
Patents Secured
The apparatus, equipment and pro
cesses found in practise to be most de-
sirable have been thoroughly covered
hxrr IL -
known that others have worked along
the same line, the practical progr ass
during the past year at Honolulu Plan,
tation and the success obtained from
all points is far in advance of any
thing heretofore accomplished in this
direction.
The Kopke proposition is ona of in.
sstimable value to all sugar factories
of the nature and quality of
the product. Further it has been shown
to facilitate the use of other processes
that have heretofore been handicap.
ped by inefficient means of eliminating
the insoluble from the juice. The eff.
fieieney of sugar factory and the r..
coyery of the maximum amount OF sug.
ar from the juice is largely dependent
upon the thorough Qualification Of the
juice and the removal from il OF all
insolubls matter.
Most of the methods employed In
modern sugar mills have undesirable
and Questionable features some Of
which are the large quantity OF juice
that Is under treatment, the extensive
sitting tanks filter presses and sand
filters, which require much space and
an elaborate equipment Of supply
tanks, pipes, pumps valves, ste. fhe
kopko process eliminates much Of this
aud II ta adoption resulted merely la
tho SAYING Of space in the miil il would
sllll be Nnfih 0hlln hpt the reduction