IMPROVE. MENTS IN THE MANUFACTURE OF BEETROOT SUGAR
Year: 1866

page_text: LETTERS PATENT to Gerd Jacob Bensen, of Christian Street, St.
George's-in-the-East, Sugar Refiner, for the Invention of "IMPROVE.
MENTS IN THE MANUFACTURE OF BEETROOT SUGAR.”
Sealed the 17th July 1866, and dated the 23rd January 1866.
PROVISIONAL SPECIFICATION left by the said Gerd Jacob Bensen at
the Office of the Commissioners of Patents, with his Petition, on
the 23d January 1866.
I, GERD JACOB BENSEN, of Christian Street, St. George's-in-the-East,'
Sugar Refiner, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN THE MANUFACTURE OF BEETROOT SUGAR," to be as
follows:-
This Invention has for its object improvements in the manufacture of
beetroot sugar.
In the manufacture of beetroot sugar it is found that the crystals of the
raw sugar are combined with vegetable matter which has not been removed
by the process of filtration through charcoal to which the syrups have
been subjected. Now my Invention consists in a mode of purifying such
sugars by which the vegetable matters are removed. For these purposes

page_text: the raw beetroot sugar is mixed with a quantity of syrup, by preference of
cane sugar, in such proportions, however, as not to dissolve the crystals of
the raw sugar. The mixture is then to be heated to about 150° to 160° of
Fahrenheit. The heated mixture is then placed in moulds to drain, fresh
quantities of syrup being applied to drain through or wash off the im-
purities. Or, in place of the heated mixture being introduced into moulds,
vacuum pans or trays may be employed. Or centrifugal machines may
be used for the draining and cleansing process.
The cleansed sugar,
whether from the moulds or vacuum pans or trays, is then to be dried
in stoves.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Bear in the Great Seal Patent Office on the 20th
July 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
BEAR, of Back Road, St. George's-in-the-East, in the County of Middlesex,
Tobacco Manufacturer, Executor of Gerd Jacob Bensen, of Christian
Street, St. George's-in-the-East, Sugar Refiner, deceased, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-third day of January, One thousand
eight hundred and sixty-six, in the twenty-ninth year of Her reign, after
reciting that the said Gerd Jacob Bensen did by his Petition humbly repre-
sent to Her said Majesty that he was in possession of an Invention for
"IMPROVEMENTS.IN THE MANUFACTURE OF BEETROOT SUGAR," which the Peti-
tioner believed would be of great public utility, that he was the first and
true Inventor thereof, and that the same was not in use by any other
person or persons to the best of his knowledge and belief, and that the
Petitioner therefore most humbly prayed that Her said Majesty would be
graciously pleased to grant unto him, his executors, administrators, and
assigns, Her Royal Letters Patent for the sole use, benefit, and advan-
tage of his said Invention within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, for the term of fourteen
years, pursuant to the Statute in that case made and provided; and reciting
that the said Gerd Jacob Bensen departed this life on the Twelfth day of
March, One thousand eight hundred and sixty-six, leaving me, the said
George Bear; Executor of his will; and that Her said Majesty; being
willing to give encouragement to all arts and inventions which might be for

page_text: the public good, was graciously pleased to grant to me, the said George
Bear, as such Executor as aforesaid, Her Royal Letters Patent, and did
give and grant unto me, the said George Bear, my executors, adminis-
trators, and assigns, Her especial license that I, the said George
Bear, my executors, administrators, and assigns, or such others as I, the
said George Bear, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after during the term of years therein expressed, should and lawfully might
make, use, exercise, and vend the said Invention within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, upon the condition (amongst others) that I, the said George
Bear, should, by an instrument in writing under my hand and seal,
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 in compliance with the said proviso I, the said
George Bear, as such Executor as aforesaid, do hereby declare that the
nature of the said Invention, and in what manner the same is to be per-
formed, are particularly described and ascertained in and by the following
statement thereof, that is to say :-
It is well known that the crystals of raw beetroot sugar are usually
combined with vegetable matter, which is offensive to the smell. Now
according to the present Invention the crystals of raw beetroot sugar are
purified, and the vegetable matters or impurities are removed therefrom, as
hereafter described, by which a very superior manufacture of beetroot
sugar is obtained.
Into any quantity of fine liquor or syrup of cane sugar of about 35° of
Beaumé is stirred a quantity of raw beetroot sugar, so as to bring the
mixture to the same density as usual in the manufacture of stoved goods,
the object being that the crystals of the raw beetroot sugar shall not be
dissolved, or as little as may be. The mixture when heated by preference
to about 170° of Fahrenheit is then run into moulds, where the same is
allowed to stand for about 36 hours. Fresh quantities of fine liquor are
afterwards to be applied, as is well understood, and, finally, the sugar is to
be dried in stoves.
The above is the process which is preferred, but the separation of the
liquor may be varied, the peculiarity of the Invention consisting in com-

page_text: bining fine liquor or syrup with raw beetroot sugar, as lierein described,
and then separating the liquor therefrom. It should be stated that the
liquor drained off from the crystals of raw beetroot sugar after being
filtered through animal charcoal may again be used as above described.
In witness whereof, I, the said, George Bear, have hereunto set my
hand and seal, this Sixteenth day of July, in the year of our Lord
One thousand eight hundred and sixty-six.