IMPROVEMENTS IN THE MANUFACTURE OF SYRUPS
Year: 1864

page_text: LETTERS PATENT to Peter Dutrulle, of No. 72, Davis Street, Grosvenor
Square, in the County of Middlesex, Commission Agent, for the Inven-
tion of "IMPROVEMENTS IN THE MANUFACTURE OF SYRUPS."-A communi
cation, from abroad by Jean Jacques Grosheing and Auguste Sheurer,
Sealed the 4th April 1865, and dated the 26th October 1864.
PROVISIONAL SPECIFICATION left by the said Peter Dutrulle at the Office
of the Commissioners of Patents, with his Petition, on the 26th October
1864.
I, PETER DUTRULLE, of No. 72, Davis Street, Grosvenor Square, in the
County of Middlesex, Commission Agent, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN THE MANUFACTURE OF SYRUPS," &
communication to me from abroad by Jean Jacques Grosheing and Auguste
Sheurer, both of Logelbach, near Colmar, Haut Rhine, Chemists, to be as
follows:-
The material we use is potato flour; this we dilute with water to make a
paste, and decompose this paste by means of sulphuric acid, we then boil it ;
after boiling the acid is saturated with carbonate of lime, which absorbs the
acid that has been used for the purpose of decomposition and still remains in
the matter. The carbonate of lime in its contact with the acid produces
sulphate of lime, which settles on the bottom of the vessel in which the

page_text: process is being carried on. We then gently pour off the syrup left on the
surface, which we place in a copper in which a vacuum has been produced
by means of a pneumatic machine. The syrup having gone through this last
process is fit for use.
We produce by the above method of manufacturing a cheaper and superior 5
article to any now in use, inasmuch as we want a less quantity of sugar in the
manufacture of marmalades, jellies, and other confections. Articles prepared
with these syrups are entirely free from crystalization or fermentation.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Peter Dutrulle in the Great Seal Patent Office on the
25th April 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, PETER
DUTRULLE, of 72, Davis Street, Grosvenor Square, in the County of Mid-
.dlesex, Commission Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date, the Twenty-sixth day of October, in the year of our
Lord One thousand eight hundred and sixty-four, in the twenty-eighth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said Peter Dutrulle, Her special licence that I, the said Peter
Dutrulle, my executors, administrators, and assigns, or such others as I, the
said Peter Dutrulle, 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 "IMPROVEMENTS IN
THE MANUFACTURE OF SYRUPS," being a communication to me from abroad' by
Jean Jacques Grosheing and Auguste Sheurer, both of Logelbach, near Colmar,
Haut Rhine, Chemists, upon the condition (amongst others) that I, the said
Peter Dutrulle, 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 Peter Dutrulle, do hereby declare 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, that is to say :-
The material we use is potato flour; this we dilate with water to make a
paste, and decompose this paste by means of sulphuric acid, we then boil it;
after boiling the acid is saturated with carbonate of lime, which absorbs the
acid that has been used for the purpose of decomposition and still remains in
the matter. The carbonate of lime in its contact with the acid produces
sulphate of lime, which settles on the bottom of the vessel, in which the
process is being carried on. We then gently pour off the syrup left on the
surface, which we place in a copper in which a vacuum has been produced
by means of a pneumatic machine. The syrup having gone through this last
process is fit for use.
We produce by the above method of manufacturing a cheaper and superior
article to any now in use, inasmuch as we want a less quantity of sugar in the
manufacture of marmalades, jellies, and other confections, and articles prepared
with these syrups are entirely free from crystallization or fermentation.
In witness whereof, I, the said Peter Dutrulle, have hereunto set my
hand and seal, this Twenty-fifth day of April, in the year of our Lord
One thousand eight hundred and sixty-five.