Improvements in and relating to Boiling Sugar and other Syrups.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to Boiling Sugar and other Syrups.
I, EDWARD SHAW, of 9, Lower Castle Street, Bristol, Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention has reference to boiling sugar, glucose and like syrups. It relates
to apparatus for boiling syrup through the agency of steam.
The apparatus to which the invention relates is of a usual and well-known kind,
that is to say, it consists of a steam-jacketted syrup-boiling pan containing a
metallic coil designed to have steam circulating therein or passei therethrough.
This invention consists in the provision of means whereby the pressure, and,
consequently, the temperature of the steam in its passage fro n the steam boiler to
the jacket of the syrup-boiling pan, or to the coil contained in the pan, is capable
of being regulated and varied, at will.
The means for effecting the regulation and variation consists of a reducing
valve, of a suitable and well understood type, situated in the pipe whereby the
steam is supplied to the syrup-boiling vessel and coil. The reducing valve is
capable of being set to act at variable points corresponding to the pressure of
steam which it is desired to admit to the jacket of the syrup-boiling vessel and to
the coil. The pressure may range from the full working pressure down to any
desired degree. The coil and the jacket of the syrup-boiling vessel may be
supplied with steam by the same pipe, or by separate pipes having separate reducing
valves. The steam may, if desired, be passed through the jacket and coil in
sequence beginning with either of them.
It is well known that it is advantageous in sugar boiling to apply heat more
rapidly to syrups at particular stages in the boiling process than at others, and,
further, that it is advantageous to vary the degree of heat applied, according to
the class of syrup being boiled.
Under this invention these ends are facilitated and more effectively performed.
Dated this 27th der of Tan 1906
NICHOLAS WATTS,
Bristol, Chartered Patent Agent.
Improvements in and relating to Boiling Sugar and other Syrups.
I, EDWARD SHAW, of 9 Lower Castle Street, Bristol, Engineer, do hereby
declare the nature of this invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
This invention has reference to boiling sugar, glucose and like syrups. It relates
to apparatus for boiling syrup through the agency of steam.
The apparatus to which the invention relates is of a usual and well-known kind,
that is to say, it consists of a steam-jacketted syrup-boiling pan containing a
metallic coil designed to have steam circulating therein or passed therethrough.
This invention consists in the provision of means whereby the pressure and,

page_text: consequently, the temperature of the steam in its passage from the steam boiler
to the jacket of the syrup-boiling pan, or to the coil contained in the pan, is capable
of being regulated and varied at will.
The means for effecting the regulation and variation consists of a reducing valve,
of a suitable and well understood type, situated in the pipe whereby the steam is
supplied to the syrup-boiling vessel and coil. The reducing valve is capable of
being set to act at variable points corresponding to the pressure of steam which it
is desired to admit to the jacket of the syrup-boiling vessel, and to the coil. The
pressure may range from the full working pressure down to any desired degree.
The coil and the jacket of the syrup-boiling vessel may be supplied with steam by
the same pipe, or by separate pipes having separate reducing valves. The steam
may, if desired, be passed through the jacket and coil in sequence beginning with
either of them.
Referring to the accompanying drawing, the figure shown illustrates one method
of carrying my invention into practical effect. The apparatus to which my
invention relates is of a usual and well-known kind, that is to say, it consists of a
steam-jacketted syrup-boiling pan a containing a metallic tubular coil b designed
to have steam circulating therein or passed therethrough.
In the example illustrated in the drawing, steam is supplied to the jacket a¹ of
the pan a through the pipe c, and the coil b is supplied by the branch pipe c'. The
steam outlet pipe a² of the jacket a' is fitted with a cock a³ for controlling the
discharge of steam. Similarly the outlet pipe of the coil b is fitted with a
controlling cock 62.
The inlet pipe c by which, as aforesaid, steam is admitted to the jacket a¹ of the
syrup boiling pan a is fitted with a reducing valve d of a well-known type which,
by means of the weight d' adjustable on the lever d², can be set to act at variable
points corresponding to the pressure of steam which it is desired to have in the
jacket a¹ of the pan a.
A similar reducing valve e with weight e¹ and lever e² is fitted in the steam
supply pipe of the coil b. The pressure admitted to the jacket and the coil may
range from the maximum working pressure down to any desired lower degree.
Other kinds of reducing valves than those shown in the drawing may be
employed in lieu thereof.
Steam may be supplied to the jacket a' of the pan a and to the coil independently,
and it may, if desired, be passed through the jacket and coil in succession, beginning
with either of them.
It is well known that it is advantageous in sugar-boiling to apply heat more
rapidly to syrups at particular stages in the boiling process than at others, and,
further, that it is advantageous to vary the degree of heat applied, according to
the class of syrup being boiled.
Under this invention these ends are facilitated and more effectively performed.
Having now particularly described and ascertained the nature of this inven
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
In connection with steam-jacketted pans and steam coils for boiling sugar, glucose
and other syrups, the provision in the steam supply pipe to the jacket of the pan
and in the steam supply pipe to the coil, or in either of them, of a reducing valve
or valves whereby the pressure and, consequently, the temperature of the steam
in its passage from the steam boiler to the jacket of the syrup-boiling pan, or to
the coil contained in the pan, is capable of being regulated and varied at will,
substantially as hereiubefore described.
Dated this 27th day of November 1896.
NICHOLAS WATTS,
Bristol, Chartered Patent Agent.