Polynesian. [volume] (Honolulu [Oahu], Hawaii) 1844-1864, 1853-07-30
HONOLULU, SATURDAY, JULY 80, 1853.

a longer time than it is necessary to obtain
1t, 1t they once saw the machine in operation
We would advise every planter, whilst there
Is time, to have his order executed by the
time he will need Centrifugal Machine, to
visit Mr.. Knox's plantation, and see the prac-
tical operation Of this most useful and inge-
NOUS invention. Mr. Knox has had one of
these machines in successful operation ior
some time, and we have the liberty Of saying
that he will be happy to show it, and explain
its advantages, to any gentleman planter who
may call upon him. Fellows s. Co.. Gra-
vier street, receive orders for these machines.
This house is too we'll known for us to say
more than tina. they are engaged in the sale
Of these machines-a sufficient guarantee
that they are all they profess to be.
We do not know that we can make bet
ter conclusion to this imperfect article than
to give the practical details of the experience
Of Mr.. Knox, who has used the Centrifugal
Machine so successfully.
"I will now," says Mr. Knox, addressing
Fellows s. Co., according to promise, give
you the result of my operations with the i'm
proved Centrifugal Sugar Machine, pur-
chased from you few weeks since. | have
been at work about two weeks, and have as
yet been engaged entirely with my second
sugars and tiger footings, and the molasses
from them after passing through the Centri-
fugal, and have not yet reached my cistern-
bottom sugar, of which, as you are aware, |
have an unusual quantity-the result of high
boiling for the tigers. should have prefer
red delaying this communication until | had
gotten through with my cistern bottoms, when
having tried them with variety of sugars,
my experience would have been greater, and
the information furnished more full and de-
tailed; but, as you appear to be anxious to
hear from me now on the subject, will, how
ever meagre the information l may give,
comply with your request
''My apparatus for working over sugar is
a BIow-up,' bone black filterers, and vac
uum pan During crop season use the
common kettles for making syrup. boil
up as high in preparing the sugar for The
Centrifugal machine as did for the tigers,
granulating very full in the pan, but suffer-
ing it TO remain at least twenty four hours in
the coolers, in order that as much syrup as
will granulate may do SO before subjectng it
to the operation Of the machines. The ca
pacity Of my vacuum pan, when filled to the
centre of the eye-glass, is 81 hhds. That is
what have obtained when draining in tigers
and hogsheads also. With the Centrifugal
pans have obtained the same quantity
The advantage they possess over tigers, as
of the quality of the sugar obtained, and
greater expedition in preparing it for market
The advantage they have over the hogsheads
in both these particulars, is almost beyond
comparison. worked the tigers the past
crop season to greater advantage, believe,
than they had ever been worked before,
principally owing to the application, during
the operation of draining, of heat at tenn
erature of 80 degrees Fahrenheit BY this
means obtained from each skipping Of the
vacuum pan an average of 24 hhds. of white,
or first sugar; one-half hid. of straw-colored,
or second sugar; and one-half hhd of foot
ing, which latter was not saleable without
working over By the centrifugal have OBJ
tanned from each skipping of the pan an
average, up to this time, in working my Sc
cond sugars and footings, 81 hhds. Of white
sugar, perfectly uniform in quality, and fully
equal to the best white sugar obtained from
the tigers.
"I will mention one more fact, and then
close this already too long letter. have
obtained from sugar, made exclusively of
molasses passed through the centrifugal pans
2a hhds. to each skipping Of the vacuum pan
a result fully equal as to quantity, to what
can be obtained by draining in hogsheads,
and far superior in quality, the sugar being
worth at least C. per lb. The tigers, as
you are aware, cannot be used as drainers
for molasses sugars, molasses being too poor
to obtain grain in the vacuum pan-an indis-
pensable requisite for draining in tigers.
1t was my intention, in this communica-
tion, to give you, as briefly as could, facts
on important points, rather than opinions.
and shall not depart from it further than 10
state, in closing, that believe, for crop-su-
gars, and good strong grain sugars of any
kind, when bone black and vacuum pans are
used in the process of manufacture, that the
centrifugal pans, as drainers, far exceed any
invention now known"
England and the United States.