Improvements in or connected with Cane Crushing Mills.
Year: 1891

page_text: Date of Application, 28th Aug., 1891
Complete Specification Left, 30th May, 1892-Accepted, 2nd July, 1892
PROVISIONAL SPECIFICATION.
Improvements in or connected with Cane Crushing Mills.
I, GEORGE FLETONER, of Masson Works, Litchurch, Derby, in the County
of Derby, Engineer, do hereby declare the nature of this invention to be as
follows:
-
My invention relates to cane crushing mills, and comprises an improved arrange-
ment of mechanism for returning the trash to the rollers.
In carrying out my invention I substitute for the usual curved plate and bar a
circular bar grooved parallel to its axis and resting on bearings in the standards of
the mill. This circular bar is run at such a speed that the travel of the periphery
is not less than the peripheral speed of the rolls of the mill, the power for driving
the said circular bar being transmitted by gearing from the end of one or other of
the roller shafte. The circular bar is rendered adjustable either by screw or wedge
blocks, as may be most convenient.
.
The chief advantages of my invention are that the forward motion of the
circular bar carries the megass from the first to the second crushing rolls in a con-
tinuous feed, at the same rate as it is taken in by the first crushing rolls and thus
prevents choking and the reabsorption by the megass of the cane juice already
oxtracted.
My improvements are especially applicable for use in connection with the
sugar cane mill described in the Specification of my former Patent No. 6098
of 1888.
Dated the 28th day of August. 1891
.G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or connected with Cane Crushing Mills.
1, GEORGE FLETCHER, of Masson Works, Litchurch, Derby, in the County
of Derby, 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:-
My invention relates to cane crushing mills, and comprises an improved arrange-
ment of mechanism for returning the trash to the rollers.
In carrying out my invention I substitute for the usual curved plate and bar a
circular bar or roller grooved or otherwise suitably roughened and resting on
bearings in the standards of the mill. This circular bar is run at such a speed that
the travel of the periphery is not less than the peripheral speed of the rolls of the
mill, the power for driving the said circular bar being transmitted by gearing from
the end of one or other of the roller shafts. The circular bar is rendered adjust-
able either by screw or wedge blocks, as may be most convenient.
To enable my invention to be fully understood I will describe how it can be
carried into practice by reference to the accompanying drawings, in which :-
Figures 1 and 2 are respectively side and end elevations partly in section of a
three roller cane crushing mill provided with our improvements.
Figures 3 and 4 are respectively a longitudinal and an end elevation drawn to an
enlarged scale of the rotary trash returning bar or roller.
Figures 5, 6, 7 and 8, are similar views to Figures 1, 2, 3 and 4 but the rollers
of the mill in Figures 5 and 6 are shewn differently arranged.

page_text: Figures 9, 10, 11 and 12 are also similar views to Figures 1, 2, 3 and 4 except
that Figures 9 and 10 shew a four roller cane crushing mill provided with two of
my rotary trash returning rollers.
Similar letters in all the figures indicate similar or corresponding parts.
Referring first to Figures 1 to 8, a, b and c are the ordinary crushing rollers of
the cane crushing mills and d is my rotary circular bar or roller which I substitute
for the fixed curved plate and bar usually employed in cane crushing mills the said
grooved circular bar or roller being grooved as clearly shewn in Figures 3 and 4
and in Figures 7 and 8 (or it may be otherwise suitably roughened) and resting on
bearings e in the standards f of the mill.
and are the gear wheels by which the power is transmitted from the crushing
rollers for driving my grooved circular bar or roller d the wheel g being fixed to
one end of the shaft of the top roller a and the wheel h to the corresponding end
of the shaft of iny grooved circular bar or roller d and the two wheels and h
being so proportioned that the periphery of the grooved roller d travels at a speed
not less than the peripheral speed of the crushing rollers a, b c.
is the screw for adjusting the position of the grooved circular bar or roller d.
The crushing rollers a, b, c and grooved circular roller or trash turner d
revolve in the direction indicated by the arrows and the cane being introduced
in the usual manner between the crushing rollers a and is then received by the
rotary trash turner d which passes it on continuously to the crushing rollers a
and cat the same rate of speed as it is taken in by the rollers a and b
thereby preventing choking and the re-absorption by the megass of the cane juice
already extracted.
In the four roller crushing mill shewn in Figures 9 and 10, a, b, c and c' are the
crushing rollers and d, di Figures 9, 10, 11 and 12 my grooved circular rollers or
trash turners. The crushing rollers and trash turners revolve in the direction
indicated by the arrows, and the cane being introduced between the crushing
rollers a and b is received by the trash turners d by which it is passed on to the
crushing rollers band e; it is then received by the trash turner d' which delivers
it to the rollers b and c¹.
Both tlie trash turners d and d' are fitted with pinions by which they receive
their rotary motion from the crushing roller through the medium of the spur
wheel g fitted on the end of the shaft of the roller b.
My improvements are especially applicable for use in connection with the
sugar cane mill described in the Specification of my former Patent No. 6098
of 1888.
Having now particularly described and ascertained the nature of any said inven-
tion aud in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination with a roller cane crusliing mill of a rotary trash turner
consisting of a circular bar or roller substantially as described and for the purpose
Bet forth.
2. In a roller cane crushing mill the combination with the described rotary trash
turner of gearing whereby such trash turner is driven from the shaft of one of the
crushing rollers, substantially as hereinbefore described.
3. The improved cane crushing mills herein before described and illustrated in
the accompanying drawings.
ليفهـ
G: F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant..