IMPROVEMENTS IN SUGAR CANE MILLS
Year: 1856

page_text: LETTERS PATENT to Charles John Lewsey, of Albion Terrace, Commercial
Road East, in the County of Middlesex, Engineer, for the Invention of
"IMPROVEMENTS IN SUGAR CANE MILLS."
Sealed the 3rd March 1857, and dated the 24th November 1856.
PROVISIONAL SPECIFICATION left by the said Charles John Lewsey
at the Office of the Commissioners of Patents, with his Petition, on the
24th November 1856.
I, CHARLES JOHN LEWSEY, of Albion Terrace, Commercial Road East, in
the County of Middlesex, Engineer, do hereby declare the nature of the
Invention for "IMPROVEMENTS IN SUGAR CANE MILLS," to be as follows:-
The improvements comprised in this Invention have for their object to
apply; in lieu of the large and massive "side frames" or standards of cast iron
heretofore used (whether with or without wrought-iron tie rods) which in
practice have been found to be defective in strength and tenacity, wrought-iron
standards, composed of numerous plates, so placed and connected together as
to present far greater strength than those heretofore used, at the same time
the strain is more equally distributed. For these purposes numerous plates
of wrought iron are used, and they are at their lower ends fixed to horizontal
plates, which are secured to the base plate of the mill. These plates are
arranged in four sets at each end of the mill. Two of the four sets of plates
at either end are arranged and may be made parallel to each other, and they

page_text: incline in one direction, whilst the other two sets of plates are arranged to
incline in the opposite direction. The plates of two of the sets pass between
the plates forming the other two sets, and being inclined to, thoy intersect
each other. The upper ends of the plates of each set are connected together,
and they are keyed so as to press on the sets of plates which they pass between,
by which arrangement or combination of plates a framing is constructed at
each end of the mill, consisting of several plates of wrought iron arranged in
diagonal lines; and where cane juice pumps are required, a self-adjusting
pump is applied, whereby a continuous flow of cane juice is maintained with-
out the use of clacks.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles John Lewsey in the Great Seal Patent Office, on the
23rd May 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
JOHN LEWSEY, of Albion Terrace, Commercial Road East, in the County of
Middlesex, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of November, in the year of our
Lord One thousand eight hundred and fifty-six, in the twentieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Charles John Lewsey, Her special licence that I, the said Charles John
Lewsey, my executors, administrators, and assigns, or such others as I, the
said Charles John Lewsey, my executors, administrators, and assigns, should
at any time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for "IMPROVE-
MENTS IN SUGAR CANE MILLS," upon the condition (amongst others) that I, the
said Charles John Lewscy, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what manner.
the same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately after the
date of the said Letters Patent.
NOW KNOW YE, that I, the said Charles John Lewsey, do hereby declaro
the nature of the said Invention, and in what manner the same is to be per-

page_text: formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
The improvements comprised in this Invention have for their object to apply,
in lieu of the large and massive "side frames" or standards of cast iron
heretofore used (whether with or without wrought iron tie rods) which in
practice have been found to be defective in strength and tenacity, wrought iron
standards, composed of numerous plates, so placed and connected together as
to present far greater strength than those heretofore used, at the same time
the strain is more equally distributed. For these purposes numerous plates of,
wrought iron are used, and they are at their lower ends fixed to horizontal.
plates, which are secured to the base plate of the mill. These plates are
arranged in four sets at each end of the mill. Two of the four sets of plates at
either end are arranged and may be made parallel to each other, and they.
incline in one direction, whilst the other two sets of plates are arranged to:
incline in the opposite direction. The plates of two of the sets pass between
the plates forming the other two sets, and being inclined to, they intersect each.
other. The upper ends of the plates of each set are connected together, and.
they are keyed so as to press on the sets of plates which they pass between,.by.
which arrangement or combination of plates a framing is constructed at each
end of the mill, consisting of several plates of wrought iron arranged in.
diagonal lines; and where cane juice pumps are required, a self-adjusting
pump is applied, whereby a continuous flow of cane juice is maintained with-
out the use of clacks.
And in order that my said Invention may be most fully understood and
readily carried into effect, I will proceed to describe the Drawing bereunto
annexed.
DESCRIPTION OF THE DRAWING.
Figure 1 is a side elevation, partly in section, Figure 2 is an end view, and
Figure 3 is a plan, of a cane press arranged according to my Invention.
a, a, is a cast-iron base plate, to which are bolted by the bolts a¹, a', a¹, the
sets of angle pieces b, b, made of strong boiler plate, which carry the bear-
ings c, c, of the two lower rollers; c', c, are wedges, by which the rollers are
set up, as may be required. To the angle pieces b, b, are bolted the tie
plates d, d, which are arranged alternately with the pieces b, b, as is shown by.
the Drawing. At the points where the different sets of tie plates intersect
each other the plates of one set pass between the plates of the other set, and
they are connected together by bolts. The bearings e, e, of the top roller are-
carried in the diamond-formed spaces enclosed by the meeting of the different
sets of tie plates, and the lower brass is kept set up by wedges f, f, as is

page_text: clearly seen at Figure 4, which shows a section taken through one of the
standards or sets of tie-plates.
Figure 5 shows a frame which is attached to the tie plates, and connects
the sets at the two opposite sides, so as to tie the whole firmly together.
The
Figuro 6 is an end view of a canejuice press, with a canejuice pump,
arranged according to my Invention, combined with it; and this arrangement
is used when the position of the press is such that the juice will not run direct
to the boiling room. On the end of the axis of the upper roller an
excentric 7, 9, is fixed, which gives motion to two bell-crank lovers h, h,
connected with the pump rods i, i. The juice runs from the bed plate of the
press into the cistern j, and is raised therefrom by the pump.
pump has
two buckets therein on two separato pump rods. The two buckets are of the
ordinary kind, each having its valve. The valves of the two buckets open in
the same direction, and they respectively open as they move towards the
suction end of the cylinder or barrel, and close as they move towards the
delivery end of the cylinder or barrel. is the suction pipe, which has no
clack or valve; l is tho delivery pipe which conveys the juice away; m is a
regulating valve in the pipe n; this valve remains closed so long as there is
the requisite quantity of juico in the cistern to rise above the lower end of the
suction pipe, but should the level of the juico fall, then the float o will descend
and open the valve, the effect of which will be to cause part of the juice to be
returned into the cistern, so as to maintain the juice above the suction pipe,
hence all drawing in of air into the pump will be prevented.
Having thus described the nature of my said Invention, and the manner of
performing the same, I would have it understood that I do not confine myself
to the precise details; but what I claim is, the combination of the framing and.
means of applying and adjusting the brasses or bearings therein; and I also
claim the combining with sugar mills pumps arranged without clacks or
valves to the suction pipes, as herein described.
In witness whereof, I, the said Charles John Lewsey, havo hereunto set
my hand and seal, this Twenty-third day of May, in the year of our
Lord One thousand eight hundred and fifty-seven.
Witness,
S. CARPMAEL.
CHAS. J. LEWSEY. (L.S.)