Process of and Apparatus for Extracting Crystallized Sugar from Bagasse. Page: 2 of 4
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UNITED STATES PATENT OFFICE.
THOMAS BLOSSOM YALE, OF COLUMBIA, TEXAS.
PROCESS OF AND APPARATUS FOR EXTRACTING CRYSTALLIZED SUGAR FROM BAGASSE,
SPECIFICATION forming part of Letters Patent No. 292,838, dated February 19, 1884.
Application filed May 29,1883. (No model.)To all whom it 7may concern:
Be it known that I, ThoxAs B. YALE, of
Columbia, Brazoria county, and State of Texas,
have invented a new and Improved Process of
5 and Apparatus for Extracting Juice and Crys-
tallized Sugar from Bagasse, of which the fol-
lowing is a full, clear, and exact description.
By the method commonly used for extract-
ing juice from sugar-cane-that is to say, by
10 the use of rollers-only from forty to sixty
per cent. of the juice is recovered and none of
the crystallized sugar.
The object of my invention is to save a per-
centage of this loss in the juice, and also to se-
I5 cure a part, if not all, of the crystallized sugar
from the refuse or bagasse or from any other
plant producing saccharine matter. To that
end I subject the bagasse to a process which
extracts the remaining juice and the crystal-
20 lized sugar by suction and atmospheric press-
ure, and use for that purpose the apparatus
hereinafter specified.
Reference is to be had to the accompanying
drawings, forming a part of this specification,
25 in which similar letters of reference indicate
corresponding parts in both figures.
Figure 1 is a side elevation of the apparatus
which I employ, and Fig. 2 is a plan view of
the hoisting-gear.
30 A is a suitable frame, supporting a cylinder,
B, that is fitted at its lower end with a hinged
bottom, C.
DD are clamps for retaining the hinged
bottom closed.
35 E is a piston or plunger, made to fit the bore
of the cylinder, and fitted for being raised and
lowered by a double rack, G, and pinions FF.
On the axis of one of the pinions is a chain
wheel, H, from which a chain, J, passes to .a
40 lower chain-wheel, I, that is provided with a
crank-handle, whereby the pinions F F can be
rotated, and the plunger E thus raised and
lowered.
At the side of and attached to the pinions F
45 are ratchet-wheels K, which are engaged by
pawls L, and to the ends of the pawls cords
are connected for use in disengaging the pawls
when the piston is to be raised. The object
of these pawls and ratchets is to prevent any
50o rising of the piston in case the steam-pressurein the cylinder exceeds the atmospheric press-
ure.
The rack G is formed at opposite sides with
ribs or wings 0, passing through gtide-plates
P P, and the rack is of a length to allow the 55
piston to descend to the bottom of the cylin-
der.
In the operation, the bagasse, after being
placed in the cylinder B and the piston or
plunger lowered thereon, is treated by the 6o
admission of steam under pressure to the cyl-
inder by a pipeat t. Thesteam will penetrate
every part of the fiber and the cells of the
crushed cane, and expand the same, so that
every particle of the crystallized sugar becomes 65
exposed to the action of the moist steam, and
the sugar crystals will be dissolved to a liq-
uid form, ready to be extracted with the j nice
by the next operation. The air-pump con-
nected to the cylinder by the pipe s is then 70
put in operation after the steam is shut off to
exhaust the air in the cylinder and draw the
juice and dissolved crystals of sugar there-
from, after which the air-pump isshut off, the
bottom of the cylinder is let down,and the ma- 75
terial forced out by moving tlge plunger E
downward.
During the operation of the air-pump the
plunger will be carried down by atmospheric
pressure, thereby compacting the material in 80
the cylinder and aiding in forcing the juice to
escape.
For breaking thevacuum when the material
is to be removed, a stop-cock maybe provided
in the cylinder. 85
I am aware that a process of extracting the
juice from sugar-cane, which consists in first
reducing the cane to short lengths, then heat-
ing it by the direct action of steam in a closed
chamber, and, finally, subjecting it to press- 90o
ure, has heretofore been employed, and I there-
fore lay no claim to such invention.
Having thus described myinvention, I claim
as new and desire to secure by Letters Patent--
1. The herein-described process for extract- 95
ing juice and crystallized sugar from crushed
saccharine material, consisting in subjecting
said saccharine material in a closed vessel to
the action of steam, and then extracting the
juice and dissolved crystallized sugar from the l
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Yale, Thomas Blossom. Process of and Apparatus for Extracting Crystallized Sugar from Bagasse., patent, February 19, 1884; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth170708/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.