The Daily bulletin. [volume] (Honolulu [Hawaii]) 1882-1895, 1884-06-06


'urnace by Mr.. f, S. Dunn, the
engineer of the mill, and now en-
lorsed by the Jarvis Company in
preference TO the Cuba Crate Bar.
The first boiler is six feet in diameter
and 10 feet long, with one Cornish /
tlue three feet in diameter. The
second boiler is also six feet in
diameter and Is feet long. with 81
tubes four inches in diameter, and
the next pair of boilers is six feet in
diameter, each II feet long, and
tubcd as the others. making the
battery of six boilers and generating
all the steam for driving the ma
chinery and cvaporating purposes of
the works. The mill consist of one
Putnam engine of 80 horsepower for
driving the rolls which are of Homo
make, three in number, size 30X60
inches, double-geared. with ca
pacity of 20 tons per day. and now
averaging ID tons with ten hours
work. Also, one engine of 20 horse
power for driving the double air-pump
to the vacuum pan, one engine of 8
horsepower for the fire-pump,
making in full 1870 horsepower for
the engines alone.
Steam is also used for one Blake
pumps for the double effect capacity
3 ton in ten hours. The two effects
have 1000 square feet of heating
surface, copper tubes and brass
heads. The vacuum pan has three
coils of three inch copper pipe taking
steam from the boilers at sixty
pounds pressure.
There are also two No. Blake
pumps for feeding the boilers at q
temperature of 210 degrees Fahren-
heit; one No. Blake pump for
molasses one G. service pump, taking
juice from the mill to the CHARTERS
at speed of about 50 gallons per
minute; one No. 5 Knowles pump
to supply the double effect tanks ;
one pump of same size for scum
press; one No. | Blake pump for
taking syrup to the double effect,
and one work pump of GO gallons
per minute for the boiling room.
There are six clarifiers of 500
Imp. gallons each, using direct
steam from the boilers, one cleaning
pan with pinch coil, one blow-up
tank with 1-inch pipe, using live
steam from the boilers; one 10-incl
lathe and large pipe-cutter.'
The mill buildings consist of one
main part 130 feet long by SO feet
wide: sugar room, 110X25 feet ;
boiler house, S0X40 feet one chimney
of iron ) feet in diameter and 81
feet high.
The comparative difference OF
gain in Jarvis patent setting of the
| same boilers over the usual or the
compound setting is found to average
in this mill for l05 days steady ruI
and producing in the above time
1,400 tons of sugar from the burning
of wet trash, and about so cords OF
wood, an average of one-half core
per day, against the burning of al
dry trash at the average cost of $40(
per month for the labor in drying
and the monthly consumption of sc
tons of coal and about six cords o1
wood, which for the above 105 days
run would make the additional cost
of 230 tons of coal and about 40 cords
Of wood for the same length of run
ming time. The average Quantity
of wet trash more than necessary fol-
making all steam used in the mill is
about equal to two days run of mil
per week.
We most cordially invite thu
planters and sugar manufacturers t.
see our furnaces and to judge fol
themselves of the difference in th,
Jarvis and the common or compound
setting of steam boilers.
III. TURToN.