New and Useful Improvements in Sugar Cane Mills.
Year: 1890

page_text: Date of Application, 11th June., 1890-Accepted, 26th July, 1890
COMPLETE SPECIFICATION.
[Communicated from abroad by ALFREDO LEBLANC, of Havana, Cuba, Engineer.]
New and Useful Improvements in Sugar Cane Mills.
I, CECIL URQUHART FISHER, of 45 Holborn Viaduct, Holborn, in the County
of Middlesex, Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
These improvements consist in certain modifications of a Leblanc's Patent of
Nov. 12th 1888, No. 16,395, and are illustrated in the accompanying drawings in
which:
Fig. 1 is a diagram of a set of feed and receiver cylinders of a mill.
Fig. 2 is a sectional view of the box or conduit provided with an exhaust
pump, and
Figs. 3 and 4 are views of parts of the mill, showing various forms of channels of
the box or conduit.
The improvements consist:
I. In encircling the set of feed cylinders S T, the set of receiver cylinders CD,
and the box or conduit H fig. 1, by one or more rings or hoops K made of any
longitudinally resisting metal, so as to prevent the cylinders and sides of the feed box
from being forced apart. It will be understood that the spaces existing between
the axles of such cylinders, the box H, and the rings or hoops, are occupied by
bearings, frames, slides, joists, or other fittings necessary to connect the whole,
the latter being purposely left out in order to make the drawings more explicit; the
same remark applies to the crushing roller R. This fig. 1 illustrates a vertical
arrangement, but this improvement, as also those to be described hereafter, apply to
any suitable arrangement and more especially to those set forth in A. Leblanc's
Patents quoted above.
II. In contriving, in the plates or sides of the box H, fig. 1, certain conical
openings or channels I, I, by which the juice runs off, leaving the bagass or crushed
residuum in the box or conduit H. These openings or channels may be of any
suitable form, and figs. and 4 show two which may be adopted, but it is essential
that the entrance for the juice be smaller than the exit, i.e. the opening must be wider
outside than inside so that the particles of crushed cane which might get into the
orifices may not stop then up. The object of this latter improvement is to facilitate
the separation of the juice from the bagass during its passage through the box H,
such bagass being pressed in the manner described in the specification of the above
mentioned Patent. It is obvious that the number, the relative positions of these
orifices, and their form, whether round, square, oval, or otherwise may vary according
to circumstances.
III. And finally in fixing inside the box H, a pump A A, fig. 2, intended for the
purpose of facilitating the separation of the juice from the bagass or crushed cane,
the vacuum of such pump being caused by any suitable means. Any juice proceeding
from the compressed bagass and getting into the interstices of the machine is
extracted by the suction pump and passes through the conical apertures I I. The
pumps may work simultaneously or alternately..
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. The above described arrangement consisting in encircling sets of feed and

page_text: receiver cylinders, and the box or chamber, with metallic hoops or rings of longi
tudinal resistance.
2. In the box or chamber H, channels made wider outside than inside.
3. The combination of the exhaust pump placed outside the walls of the conduit s
as to facilitate the separation of the juice from the bagass.
Dated this 11th day of June 1890.
C. URQUHART FISHER.