The Hawaiian gazette. [volume] (Honolulu [Oahu, Hawaii]) 1865-1918, 1869-08-04

those who have used the train, and 1t has
therefore passed beyond the limit Of theory
or experiment Exhaust steam on our plan
tations, applied to open CHARTERS, or steam
kettles, has been found inadequate to do the
whole work. By this train, the demand upon
the steam is diminished, by placing the juice
in partial and perfect yacuo. Train fires
are dispensed with, and the trash used there
is burned under boilers. The boilers are 1T
ted with Rillieux furnace. the principal
feature of which seems to be the arrange
ment of the furnace mouth, which being on
q level with the ground, facilitates the labor
of the fireman.
The cost of Rilleux apparatus size No 4,
is in United States currency $50, SOS, 90, the
present rate of gold 1S5. This cost is against
the replacing of plants already established
on our islands by this apparatus, but II is not
against the choice of it, when new planta-
tions shall be in contemplation, and first
cost is the debatable point Fuel is becom-
ing an excessively costly item in the making
of our sugars, and will have an important
bearing upon our ability to compete with
other sugargrowing countries. Its cost
may swallow up all our profits, and virtual
ly throw us out as producers.
1t seems to me, that for making bright
grades of grocery sugars, or low grade raws,
that the essential economical feature of the
Rillieux apparatus, might be dovetailed into
| 6,ao
boiling vacuum pans, could be easily ar
ranged, to take the place of the open trains,
the strike vacuum pan, where 1t is now in use,
completing the apparatus, without further
change. The bone black filters, can also be
left out of the arrangement. The treatment
of the juice could be substantially the same
| as at present, and be delivered from the strike
pan to coolers for the centriiugals. We
can in this way secure all the advantage of
boiling down, cheaply, without attempting
to refine our sugars, by filtering the syrup.
The value of the Rillieux, and similar
trains, that have partial refining process,
in placing the planter on an equal footing
with the Refner, in supplying to the con-
hOh4 W REO-
Gerry grades, is seen in the quotations of the
market. These sugars command an equal
price with that of the refiner while the first
cost is less to the planter, in that he works
up directly from the juice, and does not re-
duplicate any of the process.
The Peruvian sugars, that are sent to San
Francisco, are made by the Rillieux appara-
tus. 1t has there, proved itself, equal to
cropping the fields, by the trash only, and
from Mr.. Cahill, q Peruvian planter, l
learned, that, 1t is being introduced OH all
the new plantations. Fuel in Peru, is costly
and not abundant, in the districts where the
cane is cultivated. He assured me that they
could make better sugar, and cheaper with
it than the Hawaiian planter, and that they
were confident of ruling US out Of the Cali
fornia market
CENTRIFUGALs.
At the Delaware Co. Refinery, l saw in
operation, Weston's self balancing centrifu-
gals. Twelve of these machines were sus-
pended from the beams of the third floor of
the building, and when all in motion pro-
duced less jar than the packer on the lower
floor with his barrel of Sugar.
They present some advantages, from their
construction, over the old centrifugals, the
principal of which is doing away of heavy
foundations, the "babbit" does not wear
out SO rapidly, the oil cups need filling but
once week, and the sugar is delivered by a
hole in the bottom. They run very true.
Too much vibration at the start, or during
the turning of the charge, is corrected by
chrotched stick applied to the spindle 1t is
claimed that they will dry faster than the old
machines, the average of those saw, was
375 lbs. to the hour; size of the charge 80 to
100 lbs.
Merrick & Son, have the sole right to man
ufacture them. They are very pretty ma
chimes, and seem to combine all the modifi- |
cations and improvement for practical use
that can be gotten out of the rotary motion
for drying sugar
J.M.s.
NEw-0RLEASs, February Is, lS47.
Mr.. N. RILLIEUx, Dear Sir:
For the purpose of ascertaining the compar-
alive results of making Sugar by the old pro-
cess with kettles, and by the apparatus of N. |
Rillieux, have made the following expert
ments (:
First. 1 converted into Sugar the Juice
from twenty-five arpents of cane, by the old |
process, with my ordinary set of kettles. I |
obtained .wenty-six hhds. of Sugar, weighing |
about twenty-seven thousand pounds, (27, 0OO) |
and seventy-three (73) gallons of Molasses per
hid.
Eight days afterwards took the juice from |
field as before, and of cane in precisely the |
same condition), and converted into Sugar by |
N. Rillieux' apparatus. 1 obtained thirty |
one GID hhds. and three-quarters of first |
Sugar, weighing net "a, 12l lbs, and SO gal |
Ions of Molasses per hid.
These comparative trials were made at my |
upper plantation at English Turn.
A few days afterwards l made further expe-
riments at my lower plantation at Poverty |
Point, for the purpose of aseertaining what |
quantity of Sugar could be obtained from the |
MOlasses made by the Rillieux apparatus.
The result was as follows:
When arrived at the plantation found |
IS hhds of Sugar made by the N. Rillieux's |
process. l re-boiled the Molasses therefrom,
and obtained % hhds Of Sugar, which after
draining one month, diminished to IL hhds of |
1000 lbs. each, making 1900 lbs Of Sugar.
l sent the Sugar made by the two processes
to New York, and they were sold upon the
same day. That made by the old process sold
for six and three-quarter cents per Id. That
made by Rillieux' processes sold for eight and
quarter to eight and half cents per ID. The
sale took place on the goth January, 1s47, on
which day the prices were low in New York.
When shipped from my plantation, the hhds.
of N. Rillieux's Sugar were heavier than the
hhds. Of common Sugar. The loss Of weight
during the voyage from here to New York was
so lbs per hid. of apparatus Sugar.
(signed) A. LEssEPs.