AN IMPROVEMENT IN REFINING SUGAR
Year: 1853

page_text: LETTERS PATENT to Conrad William Finzel, of Bristol, in the
County of Somerset, Sugar Refiner, for the Invention of "AN
IMPROVEMENT IN REFINING SUGAR."
Sealed the 9th August 1858, and dated the 7th May 1853.
PROVISIONAL SPECIFICATION left by the said Conrad William
Finzel at the Office of the Commissioners of Patents, with his
Petition, on the 7th May 1853.
I, CONRAD WILLIAM FINZEL, of Bristol, in the County of Somerset,
Sugar Refiner, do hereby declare the nature of the said Invention for
"AN IMPROVEMENT IN REFINING SUGAR " to be as follows:-
Whereas it has hitherto been the practice to melt raw sugars by
means of steam injected into the pan containing the same, or otherwise
in open pans, whereby much fuel is consumed, a large proportion of
treacle is formed, while from such melting the sugar becomes colored.
Now, my improvements consist in melting sugars in vacuo, whereby a
much less quantity of treacle is produced, and the sugars are of a far
better color than those melted in the ordinary manner.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Conrad William Finzel in the Great Seal
Patent Office, on the 7th November 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
CONRAD WILLIAM FINZEL, of Bristol, in the County of Somerset,
Sugar Refiner, send grecting.
WHEREAS Her most. Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of May, in the year
of our Lord One thousand eight hundred and fifty-three, in the
sixteenth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Conrad William Finzel,
Her special licence that I, the said Conrad William Finzel, iny
executors, administrators, and assigns, or such others as I, the said
Conrad William Finzel, 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 "AN IMPROVEMENT IN REFINING SUGAR,"
upon the condition (amongst others) that I, the said Conrad William
Finzel, by an instrument in writing under my hand and seal, 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 Conrad William Finzel, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement thereof, that is to say:
Whereas it has hitherto been the practice to melt raw sugars by
means of steam injected into the pan containing the same or other-
wise in open pans, whereby much fuel is consumed, a large proportion
of treacle is formed, while from such melting the sugar becomes
colored. Now, my improvement consists in melting sugars in vacuo.

page_text: whereby a much less quantity of treacle is produced, and the sugars
are of a better color than those melted in the ordinary manner.
For the melting of sugars I employ an ordinary vacuum pan, the
construction and working of which being well understood, renders any
particular description from me unnecessary. I do not limit myself to
any form or size of pan.
By melting sugars in vacuo the melting takes place at a much
lower temperature than by any of the processes now followed. The
sugar is not liable to damage from heat, as it is not long in contact
therewith, and a great saving of time is effected.
And having now described the nature of my said Invention, and in
what manner the same is to be performed, I declare that I claim tho
melting of sugar in vacuo.
In witness whereof, I, the said Conrad William Finzel, have
hereunto set my hand and scal, this Third day of November,
One thousand eight hundred and fifty-three.
CONRAD W FINZEL. (L.S.)
Witness, R. A. BROOMAN,
Patent Agent,
166, Flect Street.