Improvements relating to the Manufacture of Cube-, Loaf-, and similar Sugar.
Year: 1891

page_text: Date of Application, 8th Dec., 1891
Complete Specification Left, 5th Jan., 1892-Accepted, 27th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements relating to the Manufacture of Cube-, Loaf-, and
similar Sugar.
A communication by JOSEF HIRSCH, of Grünau (Mark), in the Empire of
Germany, Inventor.
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 and 323 High Holborn in the
County of Middlesex, Civil Engineer, do hereby declare the nature of this inven-
tion to be as follows:-
Hitherto no one, it is believed, has been successful in preparing the sugar
obtained by the Steffen washing process, or by any other process of refining,.
directly for table cubes, loaves, etcetera, without dissolving, clarifying and filtering
such sugar.
With this improved process, more particularly hereinafter described, this object
is fully attained. A so-called warm mash is prepared in a receptacle above a
vacuum apparatus (which must have a good air pump), such as is found in any
sugar manufactory, and in this mash white sugar is mixed with a clarifying liquid..
or water to a thick paste, and carefully warmed.
This mixture is then let off into the vacuum apparatus, until the vacuum pan has
the necessary charge. The latter is then hermetically closed, and the air pump
applied. The liquid sugar is then brought to the required temperature and finally
drawn off.
Blued cleare or blued pure water is added thereto, and it is boiled down until the
liquid sugar possesses the necessary firmness, so that it is ready for being filled into
the moulds and the masse cuite obtained in this manner is made into cubes, loaves
or other shapes.
The same is then further treated like the ordinary masse cuite and yields a
product which is in nowise inferior to the ordinary product, when clarification and
filtration processes are employed.
7
1
1001
WM. P. THOMPSON & Co.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements relating to the Manufacture of Cube-, Loaf-, and
similar Sugar.
A communication by JOSEF HIRSCH, of Grünau (Mark), in the Empire of
Germany, Inventor.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for
Foreign Patent Solicitors, 6 Lord Street, Liverpool & 6 Bank Street, Manchester,
both in the County of Lancaster, & 323 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 ascer-
tained in and by the following statement :-
Hitherto no one, it is believed, has been successful in preparing the sugar
obtained by the Steffen washing process, or by any other process of refining,
directly for table cubes, loaves, etcetera, without dissolving, clarifying and filtering
such sugar.

page_text: With this improved process, more particularly hereinafter described, this object
is fully attained.
In carrying out this improved process, there is first of all prepared, in any
suitable vessel, such as is ordinarily employed in the preparation of a mash, what will
be hereinafter called a warm mash, but it must be understood that this does not
constitute the main characteristic of this invention, any ordinary vessel for mashing
sugar with a saturated solution of sugar may be employed. The essence of the
invention lies in the working of already formed sugar (crystal sugar) in vacuum to
a solid "masse cuite." The treatment in the mashing pan is only a necessary
preliminary treatment of the sugar, and is in itself not novel. The mashing vessel
may be a closed cylindrical one with a double bottom beneath it, and a stirring
apparatus inside. At the top, there is an opening, which may be closed, for putting
in the sugar and the casing liquid (saturated solution of sugar), whilst at the lowest
point there is placed a discharge pipe with a cock. The stirring apparatus is so
constructed that it drives the mass (sugar and casing liquid) to the discharge cock.
A thermometer is further attached to the vessel, which reaches into the middle of
the interior, and a testing tap, from which, at any time, samples of the mass may be
drawn.
,
When this warm mash has been thus prepared, it is then let off into the vacuum
apparatus, until the vacuum pan has the necessary charge. The latter is then
hermetically closed, and the air pump applied. The liquid sugar is then brought
to the required température and finally drawn off.
Blued cleare or blued pure water is added thereto, and it is boiled down until the
liquid sugar possesses the necessary firmness, so that it is ready for being filled into
the moulds, and the masse cuite obtained in this manner is made into cubes, loaves
or other shapes.
The same is then further treated like the ordinary masse cuite and yields a
product which is in nowise inferior to the ordinary product, when clarification and
filtration processes are employed.
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 :-
The improvements relating to the manufacture of cube-, loaf- and similar sugar
substantially as hereinbefore described, which consist in mixing the raw sugar,
previously purified, in a mash tub or the like and heating the same, and then
subsequently passing it into a vacuum apparatus, at the requisite temperature and
stiffness, all substantially as herein before described.
Dated this 4th day of January 1892.
WM. P. THOMPSON & Co.,
Agents for the Applicant.