IMPROVEMENTS IN TREATING AND ULILIZING RESIDUAL LIQUIDS OBTAINED IN MANUFACTURING OR REFINING SUGAR
Year: 1876

page_text: LETTERS PATENT to Hugh William Walker, Sugar Refiner, and Thomas Law
Patterson, Analytical Chemist, both of Greenock, in the County of Renfrew,
North Britain, for the Invention of "IMPROVEMENTS IN TREATING AND
ULILIZING RESIDUAL LIQUIDS OBTAINED IN MANUFACTURING OR REFINING
SUGAR"
'
Sealed the 21st December 1876, and dated the 21st October 1876.
PROVISIONAL SPECIFICATION left by the said Hugh William Walker and
Thomas Law Patterson at the Office of the Commissioners of Patents on the
21st October 1876.
HUGH WILLIAM WALKER, Sugar Refiner, and THOMAS LAW PATTERSON, Analytical
« IMPROVE-
Chemist, both of Greenock, in the County of Renfrew, North Britain.
MENTS IN TREATING AND UTILIZING RESIDUAL LIQUIDS OBTAINED IN MANUFAC-
TURING OR REFINING SUGAR."
This Invention has for its object the treating of residual liquids obtained in
manufacturing or refining sugar, so as to utilize them in a novel and improved
manner, by converting them into a variety of syrups having different palatable and
agreeable flavors and aromas, and the Invention is by preference to be applied to
liquids or syrups treated in the manner described in the Provisional Specification
relative to an application for Letters Patent made by the present applicants on the
7th September 1876 (No. 3520). The Invention is also applicable to other syrups
obtained in any known way.
The Invention consists in combining with the liquids or syrups any suitable fruit
essence or essential oil, either obtained from fruit or made artificially and known to
chemists as organic salts of alcohol radicles. The flavoring essence may be combined
with the liquid at any stage of its treatment, but is by preference added to it in the
vacuum or concentrating pan shortly before the charge of syrup is let off from the
pan.
"
In carrying out the Invention so as to produce what may be termed a "pine-
apple syrup," for example, the commercial oil known as essence of pine-apple" is
used, and for every 25 cubic feet, equal to about 1 ton of syrup in the pan, there,
are introduced into the pan by means of a pipe and regulating stop-cock 3 pounds
[Price 4d.]

page_text: of the essential oil. After this addition the boiling is continued for a few minutes,
and renders the mixture thoroughly homogeneous, and the charge in the pan is then
let go or discharged as usual.
If the essential oil is combined with the syrup after the latter has left the pan it
must be thoroughly incorporated with the syrup by means of stirrers or agitators
driven mechanically or otherwise.
The proportions of the flavoring essences to be used in different cases will depend
on the strengths or flavoring powers of the essences employed, and on the strength of
flavor desired to be imparted to the syrup.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Hugh William Walker and Thomas Law Patterson in the Great Seal
Patent Office on the 19th April 1877.
HUGH WILLIAM WALKER, Sugar Refiner, and THOMAS LAW PATTERSON, Analytical
Chemist, both of Greenock, in the County of Renfrew, North Britain. " IMPROVE-
MENTS IN TREATING AND UTILIZING RESIDUAL LIQUIDS OBTAINED IN MANUFAC-
TURING OR REFINING SUGAR."
Our said Invention has for its object the treating of residual liquids obtained in
manufacturing or refining sugar, so as to utilize them in a novel and improved
manner, by converting them into a variety of syrups having different palatable and
agreeable flavors and aromas, and we by preference apply our present Invention to
liquids or syrups treated in the manner described in the Specification of Letters
Patent granted to us and dated 7 September 1876 (No. 3520). Our present Inven-
tion is also applicable to other syrups obtained in any known way.
Our said Invention consists in combining with the liquids or syrups any suitable
essence or essential oil, either obtained from fruit, flowers, or other vegetable
sources, or made artificially. Such essence when artificial may be any one of those
known to chemists as particular salts of alcohol radicles. In general the essences
we intend using will be such as are obtained from fruits or such artificial essences
as are identical with or closely imitate those obtained from fruits; at the same time
we also intend to employ essences which, whilst rendering the syrup palatable and
agreeable to the taste, are characterised by having more or less aroma, fragrance, or
scent, and which may impart to the syrup a combined taste and smell unlike that
of any known fruit, such aromatic essences being obtained from vegetable sources,
or made artifically. The aromatic essences and the taste imparting essences may
be used alone or combined in any proportions that may be found to give palatable
and agreeable results.
The flavoring essence or combination of essences may be combined with the liquid
or syrup at any stage of the treatment thereof, but we prefer to add it in the vacuum
or concentrating pan shortly before the charge of syrup is let off or discharged from
the pan.
The proportions of the flavoring essences to be used in different cases will depend
on the strengths or flavoring powers of the essences employed, and on the strengths
of flavor desired to be imparted to the syrup, but by way of example we may state
that in making what may be termed "pineapple syrup" we mix with every 25 cubic
feet, equal to about 1 ton of syrup, 3 pounds of the commercial oil known as
essence of pineapple." After adding the essence in the vacuum or concentrating
pan the boiling is continued for a few minutes to render the mixture thoroughly
homogeneous before the charge is discharged from the pan.
"
If the essence is combined with the syrup after the latter has left the pan it must
be thoroughly incorporated with the syrup by means of stirrers or agitators driven
mechanically or otherwise.
Having thus particularly described our said Invention, and the manner of per-

page_text: forming the same, we have to state that we do not restrict ourselves to the precise
details herein-before described or referred to, but that what we believe to be novel
and original and claim as the Invention secured to us by the herein-before in part
recited Letters Patent is, the treating and utilizing of syrups or residual liquids
obtained in manufacturing or refining sugar by combining therewith essences
suitable for imparting to them palatable and agreeable flavors and aromas, as herein-
before described.
In witness whereof, I, the said Thomas Law Patterson, on behalf of the said
Hugh William Walker and myself, have hereunto set my hand and seal,
this Seventeenth day of April, in the year of our Lord One thousand eight
hundred and seventy-seven
Witness,
EDMUND HUNT,
Patent Agent,
Glasgow.
T. L. PATTERSON. (L.S.)