Improvements in or relating to the Manufacture of Cube or Loaf Sugar.
Year: 1898

page_text: Date of Application, 4th Oct., 1898-Accepted, 12th Nov., 1898
Improvements in or relating to the Manufacture of Cube or
Loaf Sugar.
A communication by KONSTANTIN KOCH, of 10, Djurgårdsvillan, Helsingfors, Fin-
land, in the Empire of Russia, Engineer.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both
in the County of Lancaster, 118, New Street, Birmingham, in the County of
Warwick, and 322, High Holborn, in the County of Middlesex, Civil 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 follow-
ing statement;--
This invention relates to the manufacture of cube or loaf sugar from finely
ground raw sugar (Russian crystals or granulated) finely ground refined sugar,
scrapings or scraps from cubes and loaves, and scrapings or fragments from pure
masse cuites of the first product of all kinds. The masse cuite for this cube
sugar made in the following manner:-
Finely ground and sieved raw sugar is in the ordinary manner conveyed into a
dissolving pan or defecator provided with a spirally shaped agitator or stirring
apparatus, steam casing and water cooling apparatus, and is saturated with
9-15% of water and heated to from 70-90°. The mother liquor still adhering to
the original crystals is washed out by the partial dissolving of the latter. The
Whilst the stirring apparatus is
impurities rising to the surface are skimmed off.
alternately in action and stationary, the sugar is allowed to crystallise out, the
steam valve being opened and closed as required. The crystallisation must not be
carried so far that the mother liquor adhering to the original sugar crystals and
which has been dissolved out by the water, is recrystallised. As soon as the right
grain exists a green syrup previously suitably dissolved and filtered is run thereon
and the mass is cooled by water refrigeration to 30-35° C, when centrifuging
may commence.
The method of procedure with finely ground refined sugar scraps or scrapings is
precisely similar to that hereinbefore described, with the exception that instead of
water, green syrup or other suitable sugar solution is employed for saturating the
sugar. The temperature need not be raised above 70° C.
The scrapings or scraps from the masse cuite of the first product (first sugar) are
saturated in an ordinary pan with green syrup or other suitable sugar solution.
The mass is agitated until the pieces are small enough to pass evenly through the
dividing plates of the centrifugal. This masse cuite serves for making sugar
plates.
ha anmbined if desired

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is;-
-
1. The process of making loaf sugar from finely ground raw sugar consisting in
partially melting and saturating same with 9-15% water in a dissolving pan
provided with spiral stirring apparatus, steam casing and water cooling device,
and directly crystallising, without dissolving or filtration either mechanical or
through animal charcoal and without boiling in vacuo, substantially as herein-
before described.
or
2. The process of making loaf sugar from finely ground scrapings
scraps from refined sugar consisting in saturating it
with
green
syrup or other suitable sugar solution and heating to 70° C. in a dissolving pan
similar to that herein before described and avoiding the several manipulations
described as being avoided in Claim 1.
3. The process of making loaf sugar from scraps and scrapings from the masse
cuite of the first product, consisting in dissolving same with green syrup or other
suitable sugar solution in an ordinary dissolving pan and avoiding the various
manipulations described as being avoided in Claim 1.
4. In the manufacture of cube or loaf sugar, the suitable combinations of the
masse cuites formed as described in Claims 1, 2, 3, substantially as described.
Dated this 3rd day of October 1898.
WM. P. THOMPSON & Co.,
Agents.