Improvements in Sugar-cane Mills.
Year: 1892

page_text: Date of Application, 1st July, 1892
Complete Specification Left, 29th Mar., 1893-Accepted, 29th Apř., 1893
PROVISIONAL SPECIFICATION.
Improvements in Sugar-cane Mills.
1, GEORGES LATEULADE, of 11 Calle de Trinidad, Santiago de Cuba, Engineer
do hereby declare the nature of this invention to be as follows, that is to say :-..
My said invention has for its object, by an improved construction involving
comparatively little extra expense to render sugar-cane mills capable of more
completely extracting the juice from the canes than is effected with ordinary three-
roller mills.
זי
Ordinary three-roller mills do not extract as much juice from the canes as is
profitably obtainable, and it has been attempted to supplement the action of such
mills in various ways. In some cases canes have been passed through two or more
mills in succession, and in other cases various arrangements of an additional pair of
rollers have been adopted for preparatorily crushing the canes to some extent.
In carrying out my invention I add a fourth roller to the ordinary three-roller
arrangement in such a manner as to cause the canes to be subjected to three
crushing actions in passing through the mill. The three main rollers are arranged
relatively to each other as in an ordinary mill, and the added roller, which is a little
smaller than the main rollers, is placed above the lower main roller on the feeding-in
side in a position to crush the canes between itself and the top main roller. The
fourth roller is driven by means of a suitably sized pinion on its shaft and gearing
with the pinion of the top main roller.
The housings or side frames of the mill are slightly enlarged to take in the
bearings for the fourth roller. The arrangement of the bearings and other details
may be varied in different cases; but, in a convenient and preferable modification.
each housing has at the feeding-in side gaps for the bearings of the fourth roller
and of the lower main roller at that side single caps securing both bearings. The
other bearings are arranged as in existing mills, the caps of the bearings of the top
main roller and lower main roller on the discharge side being preferably secured by
long through bolts, some of which may also extend through to the bearing caps at
the other side.
The canes are fed in or entered between the fourth roller and the top main roller,
and descending, are guided by a first dumb returner in between the top main roller
and the lower main roller on the same side; and the canes pass on over a second
dumb returner and between the other lower main roller and the top roller. Whilst
the fourth roller and the lower main roller on the same side express considerable
quantities of juice from the canes they exert an effectual feeding and propelling
action on the canes by which they are forced through the closer and most severely
compressing nip between the top main roller and the second lower main roller.
The improved arrangement may be modified by placing the fourth roller in a
position to act on the canes between it and the lower main roller on the feeding-in
side the pinion of the latter gearing with the pinion of the fourth roller.
Dated this Thirtieth day of June 1892.
EDMUND HUNT,
Applicant's Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Sugar-cane Mills.
I, GEORGES LATEULADE, of 11, Calle de Trinidad, Santiago de Cuba, 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, that is to say:-
1
My said invention has for its object, by an improved construction involving
comparatively little extra expense, to render sugar-cane mills capable of more
completely extracting the juice from the canes, than is effected with ordinary. three-
roller mills.
Ordinary three-roller mills do not extract as much juice from the canes as'is
profitably obtainable, and it has been attempted to supplement the action of such
mills in various ways.
In some cases the canes have been passed through two or
more mills in succession, and in other cases various arrangements of an additional
pair of rollers have been adopted for preparatorily crushing or splitting the canes to
some extent.
In carrying out iny invention I add a fourth roller to the ordinary three-roller
arrangement, and I place it above the lower main roller on the feeding-in side, in a
position to crush the canes between itself and the top main roller. The fourth
roller is driven by means of a suitably sized pinion on its shaft and gearing with the
pinion of the top main roller.
And in order that my said invention and the manner of performing the same may
be properly understood, I hereunto append a sheet of explanatory drawings,
to be hereinafter referred to, and showing a sugar-cane mill as made with my
improvements.
Figure, 1; of the drawings is a side, and Figure, 2, a sectional end elevation.
In these drawings the same reference letters are used to mark the same or like
parts wherever they are repeated.
1 add a fourth roller, A, to the ordinary three-roller arrangement in such a
manner as to cause the canes to be subjected to three separate crushing actions in
passing through the mill, instead of only two as in the common three-roller mill.
The three main rollers, B, C, and D, are arranged relatively to each other as in an
ordinary mill, or nearly so and the added roller, A, which is a little smaller than
the main rollers, is placed above the lower main roller, B, on the feeding-in side,
in a position to crush the canes between itself and the top main roller, C. The
fourth roller, A, is driven by means of a suitably sized pinion, E, on its shaft, F,
and gearing with the pinion, G, of the top, main roller, C, which is driven in the
ordinary way.
The housings or side frames, J, of the mill are formed to take in the bearings, K,
for the fourth roller, A. The arrangement of the bearings and other details may
be varied in different cases; but in the convenient and preferable modification
shown in the drawings, each housing, J, has at the feeding-in side gaps, L, for the
bearings, K, of the fourth roller, A, and the bearings, M, of the lower main
roller, B, at that side, single caps, N, securing both bearings, these caps being made
as shown with notches engaging on projections on the side frames. The other
bearings, P, and, Q, are arranged as in existing mills, the caps, R, of the bearings
of the top main roller, C, and lower main roller, D, on the discharge side being
preferably secured by long through bolts, S, of which, one fixing the cap of the
roller, D, extends through and fixes the cap, N, of the opposite roller, B.
The canes are raised by an elevator or carrier (not shown) to the top of an
inclined shoot, X, down which they are fed in between the fourth roller, A, and
the top main roller, C, and descending, are guided by a first dumb returner, T, in
between the top main roller, and the lower main roller, B, on the same side;
and the canes pass on
over a second dumb returner, U, and between the

page_text: other lower main roller, D, and the top roller. Whilst the fourth roller, A,.
and the lower main roller, B, on the saine side express considerable quantities.
of juice from the caues, they exert an effectual feeding and propelling action
on the canes, by which they are forced through the closest and most severely
compressing nip between the top main roller, C, and the second lower main
roller, D. Owing to the primary action of the added roller, A, the lower main,
roller, B, can be and is placed closer to the top roller, C, than in ordinary
three-roller mills, so that the aggregate crushing action of all the rollers is rendered
more effectual and complete.
Brass guard rings, V, are fixed on the lower main roller; B, for the purpose of
preventing juice from the fourth roller, A, from getting access to the bearings, M,.
of the said lower roller.
•
The improved arrangement may be modified by placing the fourth roller, A, in a
position to act on the canes between it and the lower main roller, B, on the
feeding-in side the pinion of the latter being in that case arranged to gear with the
pinion of the fourth roller.
Having now particularly described and ascertained the nature of my said inven--
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The construction and arrangement or combination of parts constituting my
improved sugar-cane mill, substantially as and for the purposes hereinbefore.
described, and as shown in the accompanying drawings.
2. In sugar-cane mills providing a fourth roller, placed on the feeding-in side of
the mill, so as to act in combination with either the ordinary top main roller or the
lower main roller on the feeding-in side substantially in the manner and for the
purposes hereinbefore described.
Dated this Twenty-eighth day of March 1893.
EDMUND HUNT,
Applicant's Agent.