Improvements in Sugar-cane Crushing Mills or Apparatus.
Year: 1891

page_text: Date of Application, 24th Jan., 1891
Complete Specification Left, 21st Oct., 1891-Accepted, 21st Nov., 1891
PROVISIONAL SPECIFICATION.
Improvements in Sugar-cane Crushing Mills or Apparatus.
1, DUNCAN STEWART, of London Road Iron Works, Glasgow, in the County
of Lanark, North Britain, 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 or combination
of apparatus to express the juice from sugar canes in a very complete and satis-
factory manner.
In carrying out my invention according to one modification I employ a bottom
roller constructed and supported so as to withstand a heavy pressure, and I cause
the canes to pass over such roller intermittently by means of feed rollers or other-
wise, the said bottom roller being turned intermittently through a suitable angle.
At each pause between the movements a massive crushing head is forced down by
means of an hydraulic cylinder, upon the canes lying on the bottom roller, the
bottom of the crushing head being concave so as to act on the canes over some
extent of the roller-an eighth or a sixth part of the circumference for example.
I prefer to employ at least two sets of the apparatus which has been described,
the canes receiving a second crushing action as they pass on through the second
sct. And in order to more completely exhaust the juice from the canes I moisten
them by means of jets of steam or spray as they pass from one set of the crushing
apparatus to the next.
Dated this Twenty-third day of January 1891.
EDMUND HUNT,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Sugar-cane Crushing Mills or Apparatus.
1, DUNCAN STEWART, of London Road Iron Works, Glasgow, in the County of
Lanark, North Britain, 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 :-
My said invention has for its object by an improved construction or combination
of apparatus to express the juice from sugar canes in a very complete and satis-
factory manner.
In carrying out my invention according to one modification 1 employ a bottom
roller constructed and supported so as to withstand a heavy pressure, and 1 cause
the canes to pass over such roller intermittently by means of feed rollers or
otherwise, the said bottom roller being turned intermittently through a suitable
angle. At each pause between the movements a massive crushing head is forced
down by means of an hydraulic cylinder, upon the canes lying on the bottom roller,
the bottom of the crushing head being concave so as to act on the canes over some
extent of the roller, an eighth or a sixth part of the circumference for example.
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 simple modification of my improved
apparatus.
Figure, 1, on the sheet of drawings is a plan, Figure, 2, an end elevation and
Figure, 3, a side elevation of my improved apparatus.
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page_text: In these drawings the same reference letters and numerals are used to mark the
same or like parts wherever they are repeated.
As shown in the drawings I employ a flanged bottom roller, A, made with
massive journals, B1, B2, carried in bearings in the framing, C, of the machine, the
parts being proportioned to withstand a heavy pressure; and two rollers, D1, D2,
geared together by pinions, E 1, E 2, on one end of their shafts, F 1, F 2. Ratchet
wheels, G1, G2, are keyed on the journal, B2, and on the shaft F2; and levers, H1, H2,
carrying spring pawls, J 1, J2, which act on the ratchet wheels. The lower ends of
the levers, H1, H2, are connected by rods, K1, K2, to an hydraulic cylinder and
piston (not shown) the movements of which through the levers, H1, H2, pawls, J1, .J2,
and ratchet wheels, G1, G2, cause the flanged bottom roller, A, and rollers, D1, D2,
to be turned intermittently through a suitable angle. These movements cause the
canes which are supplied to the rollers, D1, D2, by any suitable known form of canc
carrier to pass through these rollers being partially crushed by them whilst being
fed forward and over the flanged bottom roller, A, in an intermittent manner.
each pause between the movements a massive crushing head, L, made in a piece
"with the ram of an hydraulic cylinder, M, is forced down upon the canes lying on
the bottom roller, A, the bottom of the crushing head, 1, being concave so as to
act on the canes over some extent of the roller. The return movement of the
crushing head is effected by means of two small hydraulic cylinders, N 1, N 2, one on
each side of the machine, the piston rods, P, of which are connected to a kind of
crosshead, Q, on the crushing head, L.
At
I may employ two sets of the hydraulic crushing apparatus which has been
described, the canes receiving a second crushing action as they pass on through the
second set. And in order to more completely exhaust the juice from the canes I
may moisten them by means of jets of steam or spray as they pass from one part
of the crushing apparatus to the next.
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 combination and arrangement of parts constituting my improved sugar-
cane crushing mill or apparatus substantially as herein before described and as
shown in the accompanying drawings.
2. In sugar-cane crushing mills or apparatus the combination of one or more
bottom rollers turned intermittently with one or more crushing heads forced down
upon the bottom roller or rollers substantially in the manner and for the purposes
hereinbefore described.
Dated this Twentieth day of October 1891.
EDMUND HUNT,.
Applicant's Agent.