Evening bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1895-1912, 1909-03-25

hundred gallons of Juice each, together with
proper exhaust and live steam heaters, linn.
ing tanks, etc.
For altering the scum from the settling
tanks there are twelve presses, each hav.
ing five hundred square feet of altering
surface.
Evaporation system. The evaporation Is a
quadrupe effect, having a capacity of IF.
teen hundred tons Of Juice per twenty-four
hours, reducing 1t seventy.fve per cent In
volume.
Vacuum Pans. There are three vacuum
pans each of twenty-five tons capacity, or
one large pan, of fifty tons capacity, and
one pan Of twenty-five tons capacity. one of
the pans being used for the low grade pro-
duct. These pans, together with their equip
ment Of syrup and molasses tanks, are
located on the third or upper floor of the
factory building.
Crystallizers. For the further treatment
of the sugar, after It leaves the vacuum
pans, there Is a battery Of twenty crystal.
lizers, each being of sufficient capacity to
hold the contents of the twenty five ton pan.
These are placed on the second floor imme.
diately below the vacuum pans.
Centrifugals. For drying the sugar, after
delivery from the crystalzers there are
twenty centrifugals, each forty.two inches
in diameter These centrifugals. which
may be either belt, water or electrically
driven as may be preferred, with their
equipment of mixers, conveyors dryers, ele-
vators, bagging bins, etc., are placed be-
tween the ground floor and the second floor
of the factory building.
Condensers. For condensing the vapors
from the pans and evaporators, all of which
are operated under a vacuum, and for the
removal of the uncomfortable gases. a cen.
trail condensing plant is installed, which
consists Of a condenser for each Of the pans
and evaporators, and an auxiliary conden.
ser from which the central condenser
vacuum pump takes its suction.
Electrical Equipment. For auxiliary pow.
er throughout the factory, for running cane
unloaders, revolving cane knives, driving
the crystallizers, conveyors, elevators and
machine shop apparatus and for lighting
the factory, an electrical plant of one hun.
dred and fifty kowatts is installed.
Water Supply. The necessary water sup.
ply will approximate Ave million gallons per
twenty.four hours, and can be supplied
either by gravity or by pumping system.
Sugar Chemists Laboratory. A complete
sugar chemists laboratory is installed, with
all the necessary apparatus, for a thorough
chemical control throughout the different
processes Of manufacture.
Machine Shop. There is a complete ma
chine shop, equipped with lathes, drills,
planners, pipe cutters, etc, and the necessary
hand tools, so that ordinary repairs may be
expeditiously made.
Pumps and Piping. In connection with
the above machinery there is a complete
equipment OF pumps and pipe lines, through
out the building, for handling the Juice,
syrup molasses water service, boiler feed
etc.
Building. All Of this machinery is con-
tanned In a steel frame, corrugated iron
building, of specially heavy construction.
The boiling house Is three stories in
height, the Qualification department two
stories, and the milling and boiler house
department one story.
In the mill room heavy crane spans the
full width Of the building, and has traverse
of the extreme length Of same, so that the
heavy mill rollers may be readily handled
for adjustment and repair.
Cost. The cost of factory of the above
dimensions would be about $650,000.
Other sugar apparatus has developed
tne ilues ds tne eAtTdCtiou
chinery. The Weston Centrifugal, invented
by d. w. Weston in Honolulu, was first used
in 1852 at Makawao. 1t was run by man
power and the first machine was such
curiosity that throngs of Hawaiians came
to watch its operation. and It is stated that
school boys would come every afternoon
and run the machine till night without pay.
and would dispute their turn at running It.
Very many improvements have been made
in the centrifugal since that time, but the
original idea has remained the same.
Hydraulic attachment to the mills was
adopted at the time Of the 5.roller mills,
thereby very largely increasing the extrac
ton. Vacuum pans were introduced in 1868
with double and triple effects in 1878, and
mud presses came I'm generally about 1890