Year: 1887

page_text: Date of Application, 19th Apr.. 1887
Complete Left, 17th Jan., 1888
Complete Accepted, 17th Feb., 1888
DEBAR
We, JAMES THOMSON, of Campos Villa, Nile Grove, Edinburgh, in the County of
Mid Lothian, North Britain, Engineer, and JOHN BLACK, of Boa Vista, Victoria Road,
Kirkcaldy, in the County of Fife, North Britain, Engineer, do hereby declare the
nature of this Invention to be as follows, that is to say :-
Our said Invention relates to apparatus of the kind described in the Patent
Specification No. 2586 of 1882, and which was invented by us and communicated
from Brazil where we then resided. In the said apparatus there were added to the
three rolls of an ordinary sugar cane mill two additional rolls for the purpose of
subjecting the canes to a preparatory splitting and partial crushing action with the
view of bringing them into a condition to be more easily and completely acted on by
the ordinary three rolls. The object of our present Invention is to improve the action
of the two preparatory rolls by constructing them so as not only to split the canes
longitudinally but also to bend or partially break them transversely, thereby making
them still better prepared for the subsequent operation.
For this purpose we make the two preparatory rolls with rounded flutes, the rolls
being by preference geared together so that the raised parts of each roll may enter or
face the depressed parts of the other roll. The preparatory rolls are as before still
formed with the angular grooves for effecting the splitting operation these grooves
running over the corrugated or undulating surface, either at right angles to the
flutes, or inclined thereto, or being of an undulated form.
Our improved preparatory rolls may in new machines be combined on one framing
with the three ordinary rolls; or the preparatory rolls may be fitted upon a separate
framing. The preparatory rolls can also in many cases be added to existing three-
roll mills, the necessary additional framing being fixed to or upon the framing of
such mills.
EDMUND HUNT,
Applicants' Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in or Connected with Sugar Cane Mills.
We, JAMES THOMSON, of Campos Villa, Nile Grove, Edinburgh, in the County of
Mid Lothian, North Britain, Engineer, and JOHN BLACK, of Boa Vista, Victoria Road,
Kirkcaldy, in the County of Fyfe, 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:-
Our said Invention relates to apparatus of the kind described in the Patent
Specification No. 2586 of 1882, and which was invented by us and communicated
from Brazil where we then resided. In the said apparatus there were added to the
three rolls of an ordinary sugar cane mill two additional rolls for the purpose of
subjecting the canes to a preparatory splitting and partial crushing action with the
view of bringing them into a condition to be more easily and completely acted on by
the ordinary three rolls. The object of our present Invention is to improve the
action of the two preparatory rolls by constructing them so as not only to split the
canes longitudinally but also to bend or partially break them transversely, thereby
making them still better prepared for the subsequent operation.
For this purpose we make the two preparatory rolls with rounded flutes, the rolls
being by preference geared together so that the raised parts of each roll may enter
or face the depressed parts of the other roll. The preparatory rolls are as before still
formed with the angular grooves for effecting the splitting operation these grooves
running over the corrugated or undulating surface, either at right angles to the
flutes, or inclined thereto, or being of an undulated form.
Our improved preparatory rolls may in new machines be combined on one framing
with the three ordinary rolls; or the preparatory rolls may be fitted upon a separate
framing. The preparatory rolls can also in many cases be added to existing three-
roll mills, the necessary additional framing being fixed to or upon the framing of
such mills.
And in order that our said Invention and the manner of performing the same may
be properly understood we hereunto append a sheet of explanatory drawings to be
hereinafter referred to, and showing our improvements.
Figure, 1, of the accompanying drawings is an end elevation of a sugar-cane mill
in which the two preparatory rolls, A, are combined on one framing with the three
ordinary rolls, B, the part of the framing carrying the preparatory rolls, A, being
supposed to be partly removed, the better to show the rolls. Figures, 2, and 3, are an
enlarged plan and a corresponding end elevation, of part of a preparatory roll as made
with small angular grooves in combination with rounded flutings, the angular grooves
being in this example at right angles to the flute. Figures, 4, and 5, are similar views
showing the small grooves as inclined or curved; and figures, 6, and 7, show a
slightly different arrangement whilst figures, 8, and 9, represent a roll surface formed

page_text: as it were by combined right-hand and left-hand inclined or helical grooves so as to
present diamond-like projections, which will act like fluted surfaces having their
projecting parts divided by crossing grooves. The surfaces of the preparatory rolls, A,
may be subdivided longitudinally and transversely in various ways so as to have the
desired action, namely of both splitting the canes longitudinally and bending or
partially breaking them transversely.
Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to be performed, we declare that what
we claim is:-
Making preparatory rolls of sugar cane mills with surfaces such as are formed by
combining flutings or longitudinal depressions with transverse or inclined grooves
substantially as and for the purposes herein before described.
EDMUND HUNT,
Applicants' Agent.