IMPROVEMENTS MATINERY EMPLOYED THEDIY
Year: 1861

page_text: LETTERS PATENT to Frederick Hills Schroder, of Hampstead, in the
County of Middlesex, Gentleman, for the Invention of "IMPROVEMENTS
MATINERY EMPLOYED THEDIY
Sealed the 2nd May 1862, and dated the 6th November 1861.
PROVISIONAL SPECIFICATION left by the said Frederick Hills Schroder
at the Office of the Commissioners of Patents, with his Petition, on the
6th November 1861.
I, FREDERICK HILLS SCHRODER, of Hampstead. in the County of Middlesex,
Gentleman, do hereby declare the nature of the said Invention for "IM-
PROVEMENTS IN EVAPORATING AND IN MACHINERY EMPLOYED THEREIN," to be as
follows:
My Invention is intended chiefly to apply to the evaporation of the liquid
parts from sugar when in a state of syrup in order to obtain it in a crystalline
condition.
My Invention consists in placing the syrup or other matter to be evaporated
in an open pan heated by steam or hot water let into a jacket or case in which
the pan is placed, and in causing a series of concentric cylinders through which
a blast or current of hot or cold air is forced to revolve in the syrup, a portion
of the cylinders being continually in the syrup and another portion revolving
in the atmosphere. The cylinders are each formed with slots running in the
direction of their length.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Frederick Hills Schroder in the Great Seal Patent Office on
the 6th May 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FREDERICK
HILLS SCHRODER, of Hampstead, in the County of Middlesex, Gentleman, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixth day of November, in the year of our Lord One
thousand eight hundred and sixty-one, in the twenty-fifth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Frederick Hills Schroder, Her special licence that I, the said Frederick Hills
Schroder, my executors, administrators, and assigns, or such others as I, the
said Frederick Hills Schroder, 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 "IM
PROVEMENTS IN EVAPORATING AND IN MACHINERY EMPLOYED THEREIN,"
upon the
condition (amongst others) that I, the said Frederick Hills Schroder, 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 per-
formed, 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 Frederick Hills Schroder, 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, reference being had to the Drawings hereunto
annexed, that is to say:--
My Invention is intended chiefly to apply to the evaporation of the liquid
parts from sugar when in a state of syrup in order to obtain it in a crystalline
condition. It is, however, applicable to evaporative purposes generally.
My Invention consists in placing the syrup or other matter to be evaporated
in an open pan heated by steam or hot water let into a jacket or case in which
the pan is placed, and in causing a series of concentric cylinders thrugh which
a blast or current of hot or cold air is forced to revolve in the syrup, a portion
of the cylinders being continually in the syrup, and another portion revolving

page_text: in the atmosphere. The cylinders are each formed with slots running in the
direction of their length.
Figure 1 of the accompanying Drawings is a longitudinal section; Figure 2
is a transverse section; and Figure 3 is a plan of my evaporating machinery. A
is the pan formed with a double bottom or jacket B; C is a pipe for the inlet
of steam; D is a blow off pipe which, when steam above 212° Fahrenheit is
used, is furnished with a weighted valve; E is an outlet for water; F is a
shaft supported and free to revolve in suitable bearings. This shaft carries a
frame G and arms H, H, io which slotted cylinders J, J, and K, K, are fixed.
The number of cylinders may be varied as well as the number of longitudinal
slots formed therein. L, L, are guards fixed to the upper part of the pan to
prevent any matters taken up by the cylinders flying off; M is a hood or
channel for directing heated or cold air between and among those portions of
the cylinders which revolve out of the syrup; N is the outlet for the sugar
and matters remaining after evaporation of the syrup.
I prefer to form the pan and the cylinders of copper, but the shaft F and
frame G may be of wrought iron.
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, evaporating
liquids from solids by means of concentric cylinders constructed and acting
substantially in manner herein-before described, and whether such cylinders be
used in combination with a blast or current of air, or not.
In witness whereof, I, the said Frederick Hills Schroder have hereunto set
my hand and seal, this Fifth day of May, One thousand eight hundred
and sixty-two.
FRED. H. SCHRODER. (L.s.)