IMPROVEMENTS IN SUGAR CANE CRUSHING MILLS
Year: 1884

page_text: We, GEORGE BUCHANAN and WILLIAM ALEXANDER KEAY both of 25 Bucklersbury
in the City of London Engineers do hereby declare the nature of our Invention for
"IMPROVEMENTS IN SUGAR CANE CRUSHING MILLS," to be as follows:-
The Invention has for its object improvements in sugar cane crushing mills and
relates to a novel method of constructing the head stocks or standards of the same.
These mills are commonly constructed with three parallel rolls, an upper roll
between two lower rolls.
I mount the rolls of such mills in the following manner.-The standards or
frames carrying the rolls are each formed with a bearing at the top to receive the
neck of the upper roll and with recesses at the sides to receive blocks or carriages
in which are the bearings for the necks of the lower rolls.
The two blocks or carriages on the opposite sides of the standard are connected
by a single horizontal central bolt passing underneath the necks of the lower
rolls through the blocks or carriages and through a passage formed through the
standard.
By means of the nuts upon this bolt the distance between the top roll and either
of the lower rolls can be adjusted as required.
The top roll is held down at each standard or frame by straight bolts placed
diagonally on either side, they descend from the cap of the top bearing through
passages provided in the body of the standard and outside the bearings of the
lower rolls. Thus these diagonal bolts take in a more direct manner than
heretofore the strain between the upper and lower rolls.
By these arrangements the construction is simplified and the bolts are favorably
placed to resist the strains to which the mill is exposed.
Dated this 1st day of January 1884
CARPMAEL & Co.,
Agents for the Applicants.

page_text: "
We GEORGE BUCHANAN and WILLIAM ALEXANDER KEAY both of 25 Bucklersbury
in the City of London Engineers do hereby declare the nature of our Invention for
"IMPROVEMENTS IN SUGAR CANE CRUSHING MILLS and in what manner the same
is to be performed to be particularly described and ascertained in and by the
following statement :--
This Invention has for its object improvements in sugar cane crushing mills and
relates to a novel method of constructing the headstocks or standards of the same.
These mills are commonly constructed with three parallel rolls, an upper roll
between two lower rolls.
We mount the rolls of such mills in the following manner- -The standards or
frames carrying the rolls are each formed with a bearing at the top to receive the
neck of the upper roll and with recesses at the sides to receive blocks or carriages
in which are the bearings for the necks of the lower rolls.
The two blocks or carriages on the opposite sides of the standard are connected
by a single horizontal central bolt passing underneath the necks of the lower
rolls through the blocks or carriages and through a passage formed through the
standard.
By means of the nuts upon this bolt the distance between the top roll and either
of the lower rolls can be adjusted as required.
The top roll is held down at each standard or frame by straight bolts placed
diagonally on either side, they descend from the cap of the top bearing through
passages provided in the body of the standard and outside the bearings of the
lower rolls. Thus these diagonal bolts take in a more direct manner than
heretofore the strain between the upper and lower rolls.
By these arrangements the construction is simplified and the bolts are favorably
placed to resist the strains to which the mill is exposed.
In order that our said Invention may be most fully understood and readily
carried into effect we will proceed to describe the Drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is an end view, one half in section and Figure 2 is a portion of a
side elevation of a sugar cane crushing mill constructed in accordance with our
Invention.
a. b. c. are the three rolls, d is one of the headstocks or standards on which their
necks or axes are carried by bearings. d¹ is the bearing for the neck of the top
roll and d² is the cap by which the roll is prevented from rising. e. e., e. e. are two
pair of bolts, one pair on either side passing down diagonally through the cap and
through passages cored out for them in the headstock. e'. e. are nuts and washers
which the bolts e receive at their upper and lower ends or at the lower ends of the
bolts e cotters may. conveniently be employed. The bolts e. e. as will be seen pass
outside the necks of the rolls b and c. The necks of the lower rolls are received
into side recesses in the headstock and f. f. are blocks or carriages in which are the
bearings for them. These blocks are able to slide in and out horizontally along
guide surfaces. g is a bolt keyed securely to the headstock at g' and passing by a
central passage through each of the blocks or carriages fimmediately below the
bearing. gg. are nuts and washers at the ends of the bolt g; by screwing up
these nuts the rolls b and c are approximated to the roll a. There are holes in the
blocks or carriages ff. by which the bolts e. e. pass and these holes are sufficiently
large to admit of the adjustment of the lower rolls as may be required.
The

page_text: arrangement may be varied by the substitution of a single central bolt e on either
side for a pair of bolts; a pair of bolts being then employed to secure the block or
carriage f
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed we declare that what
we claim is :-
First. The method of securing the cap by which the upper roll is prevented from
rising; by bolts passing diagonally down through passages formed in the body of
the headstock or standard outside the bearings of the lower rolls substantially as
described.
Second. The method of securing the blocks or carriages supporting the lower
rolls by bolts passing through the said blocks or carriages beneath the bearings
substantially as described.
Third. The means for adjusting the lower rolls to the upper by screws and nuts
upon the ends of the bolt or bolts securing the blocks or carriages in which the
necks or axes of the lower rolls are carried substantially as described.
Fourth. The construction of sugar cane crushing mills substantially as herein
described with diagonal bolts on either side passing through the body of the
headstock to hold down the cap of the upper roll and with an horizontal bolt or
bolts retaining the blocks or carriages in which the necks of the lower rolls are
supported substantially as described.
DL: 50th 1
A11001
CARPMAEL & Co.,
Agents for the Applicants.