Improved Device for Promoting the Crystallization of Sugar out of Sugar Solutions or Mass Cuite.
Year: 1895

page_text: Date of Application, 31st Aug., 1895-Accepted, 26th Oct., 1895
COMPLETE SPECIFICATION.
Improved Device for Promoting the Crystallization of Sugar out of
Sugar Solutions or Mass Cuite.
I, LUDWIG FUCHS of 16 Bahnhofstrasse Brunswick, in the Empire of Germany,
Sugar Refinery Director, 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 :-
The methods at present in use for promoting the crystallization of sugar out of
sugar solutions, consist either in keeping the solution in motion by means of a
suitable stirring device, or in continuously, or periodically, rotating or turning the
pan containing such sugar solution. The mechanical power necessarily required
by such procedures, however, is very considerable, seeing that the whole body of
sugar solution must be simultaneously set and kept in motion.
The object of this invention, therefore, is to remove such defects by providing a
device which will now be described with reference to the accompanying drawing
by way of example.
Fig. 1 is a sectional elevation and
Fig. 2 a plan of the apparatus.
A is the pan containing the sugar solution or mass cuite. On the sides of this
pan are bolted to two standards or bearings 6 in which is mounted the shaft c
driven from the pulleys d by means of any suitable mechanism.
As shown in the drawing rollers e of suitable size and varying in number
according to the size of the pan, are mounted on the shaft c, and a corresponding
number of like rollers e¹ suitably mounted in bearings bolted to the bottom are
provided at each end of the pan. Endless chains f, or other means adapted for
agitating or lifting the contents of the pan, are passed round the rollers e, e¹, hence,
when the shaft c is driven after the sugar crystals begin to be deposited at the
bottom of the pan, the passage of the chains or like device through the sugar
liquor causes those particles nearest to the lifting device to be raised and passed
again into the mass at the top of the pan; other parts of the mass are thus carried
into the path of the lifting device and the particles at the side of same caused to
descend, whereby a perfect circulation of the mass is effected as with the boiling
process. It is however always possible to interrupt and re-start such circulation by
stopping and starting the lifting device accordingly.
It will be evident that a series of small scoops or the like may be arranged on
the chains, or a worm, paternoster-work or other lifting device for liquids or
pulpy masses may be employed; in all cases, however, only a portion of the contents
of the pan is kept in motion by the device.
It will also be evident that the lifting device may be driven either continuously
or periodically and in either direction as desired; if driven in the reverse direction,
a pressing action is exerted on the sugar solution and the circulation of saine thus
effected. Moreover, it is immaterial whether the device operates perpendicularly
or at an angle to the surface of the mass. In all instances, however, the device
must not be too large, or considerable power will be required for forcing or drawing
same through the sugar liquor.

page_text: Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that what I
claim is
Improved device for promoting the crystallization of sugar out of sugar solutions
or mass cuite, consisting of a single or a series of, suitable lifting contrivances
(such as endless chains or worms) so arranged inside the pan containing the mass
that they may be driven continuously or periodically in both directions, for the
purpose of raising or agitating only part of the mass and thus effecting circulation
of the remainder, substantially as described and shown.
Dated the 31st day of August 1895.
PHILIP M. JUSTICE,
Associate Agent.