The daily union., 1852-12-14

| New MANUFACTURING suoAR.--We have
been favored (says the London Times) with opportn
nifty OF witnessing an improved process for making
gar, recently invented and put in operation by MIR II.
Bessemer civil engineer at his premises Baxter house,
Old ~ Pancras road and, IN common with several gem
tlemen practically convesant with the subject who
present have TO express the high qualification expe
rienced at the results brought under notice In The
present condition of DER West India colonies every in1-
provement in the manufacture OF and everything
that tends to cheaper its production cannot fail 10 excite
interest, and brief description Of this process may
not therefore be unacceptable to the reader This
shall attempt 10 do IN language free from iechDcaes
the nature OF he subject will admit Of In the
sctnre OF sugar from the cane the saccharne juice BY
the usual system expressed by a roller, .mi which, on
average obtains from so TO 55 per cent OF Juice
whereas the according to the most eminent writers,
contains 30 per cent the remaining 80 or 40 per cent be-
MIR. Bessemer by great Improvement on his original
invention of the .press now enabled 10 obtain bv
principle Of continuous pressure, from seventy 10
eighty per cent without any additional cost In order 10
photographed sugar from the juice of the
necessary TO separate large portion OF the which
the saccharne matter Is held in solution. This has
hitherto been ELECTED by boiling, the water passing of in
the form Of steam II has, however, been discovered
that the heat necessary TO produce ebulhton effects
rapid chemical decomposition OF large portion of the
sugar under operation, which dark brown or
backish color, and perfectly uncrysazabe which
condition sugar is commonly known under the name of
molasses treace, and amounts 10 forty per of the
entire quantity OF saechsrne matter present in the juice
In the process just patented by Mr. Bessemer, this
separation OF the aqueous portion OF the fluid longer
effected by boiling but IL dependent that beautiful law
OF ny winch on
ousy, and every shower OF rain again vaporzed, and
caused to ascend IN the atmosphere. To carry this nio
practice small pan only is required, which placed
screw OF peculiar construction, presenting about 900
superficial feet of surface which is kept weied by slow
y revolving the fluid to be evaporaled and in contact
with this wet surface some 10000 cubic feet OF
mospherc air is forced per minute by common blowing
fan. est II
The aqueous portions OF the solution are thus rapidly
absorbed by the air, and pass of perfectly invisible
vapor, while the temperature OF the fluid ia only de-
grees Fahrenheit The remarkable fact is that the
Evaporation at this low temperature is equal TO that OF
frepans OF the same dimensions with powerful fire
beneath them vast amount OF fuel is thus saved and
still important result obtained from evaporatng at
this low temperature that of the sacharne mat
ter s converted into molssses there the least
cepube increase OF color. Hence, only is the ausn
y increased 10 thus single process 40 cent, but the
superior quality of II would command ~ the market as
we were informed, more than the ordinary colonial
produce In the usual mode Of manufacturing sugar,
after the capitalization has taken place, The = mober
liquor in which The crystals lormed, - separated by
very slow process OF drainage through holes made
the bottom OF the boesheads; bu the whole of the
dark viscd syfup will not drain out BY the action OF
gravity coating left upon the crystals, which ren-
ders them brown ana of less value. aa gstas
By another most important invention of Mr.. Besse-
mer this drainage is effected with extraordinary rapdity
and perfection, by continuously passing very thin sira