Apparatus therefor.
Year: 1885

page_text: [Communicated from abroad by M. C. P. Barbe, Managing Director of the
Company "Naamloze Vennootschap Wester-Suikerraffinadery," of Amsterdam,.
Holland, Sugar Refiners.]
Apparatus therefor.
I, PETER JENSEN Fel. Inst. P.A. of 33 Chancery Lane in the County of
Middlesex do hereby declare the nature of said Invention for "IMPROVEMENTS IN
A com-
THE MANUFACTURE OF REFINED SUGAR AND IN APPARATUS THEREFOR
"
munication to me from abroad by M. C. P. Barbe Managing Director of the
company "Naamloze Vennootschap Wester-Suikerraffinadery of Amsterdam
Holland Sugar Refiners, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
The method or process for the production of sugar in cakes to be hereinafter
described is distinguished by great simplicity, inasmuch as all the absolutely
necessary manipulations such as filling, throwing, clayeing and drying are carried
out in one centrifugal hydro-extractor in quick succession. According to this
process the filling mass (masse cuite) is charged into the centrifugal drum, and is
taken out therefrom in the form of perfectly dry cakes of sugar.
The apparatus for carrying out this process is by preference constructed as
follows: Figure 1 of the accompanying drawings is a vertical section through the
hydro extractor and Figure 2 a plan of same showing also under the partly
removed cover the construction of part of the interior. Figures 3, 5, 6 and 7 are
details of same and Figure 4 a side elevation of the whole apparatus.
The hydro-extractor Figures 1 and 2 is made particularly strong and is provided
with a removable cover a which by means of bolts b can be fixed on the drum.
On the bottom B of the druin is placed a well fitting annular disc A made of
wrought iron and having conical grooves & planed therein. The number of these
grooves depends upon the number of cakes of sugar to be produced. C is a
cylindrical cap which fits into an annular groove turned in the plate A. This cap
is held fast by means of a screw e which is screwed into, the central spindle D.
It has also small perforations f in its circumference and has as many grooves g
D027

page_text: planed in its circumference as there are grooves d in the disc A. The claying
material and later on the air passes through the small holes f between the grooves g
as will be described further on.
The cap C is formed with a smoothly turned opening or bellmouth at top. E is
the usual outer finely perforated ring sieve. F are partitions by preference wedge
shaped as shown and cast hollow as shown in Figure 2, these are inserted in the
grooves in the plate A and cap C. One of the wedges F is shown in Figure 3 in
side elevation, vertical section and plan. The spaces between them are parallelo-
pipedons which are to contain the filling mass.
The process of manufacture of sugar is as follows:-The filling mass coming
from the cooler and of a consistency of 90 to 91° Brix and a temperature of about
95 to 98 C is passed into a vessel or carriage H Figure 4 which is suspended from
and runs on a rail whereby it is conveyed to the hydro-extractor K. The cover a
Figures 1 and 2 of the latter is now removed and the filling mass run into its
drum so that all the compartments between the wedge pieces F thereof are
completely filled. The cover a is then put on and fastened by means of the
bolts b.
The hydro-extractor is now set in motion and for the first 5 to 8 minutes at a
speed of about 500 revolutions per minute. By this low speed a cooling and
crystalising of the filling mass is produced.
By shifting the striking gear M Figure 4 the driving strap is shifted onto a loose
pulley, and another strap is shifted onto the fast pulley on the hydro-extractor
whereby the latter obtains a speed of about 1200 turns per minute. While running
at this speed for some 10 to 15 minutes the green syrup is thrown off.
This done the necessary claying or cleaning material is put in through the
opening of the cap C and will by the high speed be very equally distributed and
penetrate through the holes f into the compartments for the sugar. Five minutes
after the material has been put into the cap C a piece of hose N Figure 4 which
serves to connect the heating apparatus P with the cap C and which is provided
with a soft felt ring at its lower end, is let down so far that the felt ring just
touches the cap C, in which position the hose is fixed so that it cannot go down
lower. By means of the fan L air is forced into the heating apparatus P and there
heated to about 69 to 75° C, and then blown through the hose N and into. the
cap C. The warm air penetrates through the holes f and in a short time com-
pletely dries the sugar. The fan L is not absolutely necessary, because the warm
air would be sucked in by the motion of the hydro extractor.
The latter is now stopped, and the cakes of sugar removed. This is done in the
following manner. The cover a having been removed and the cap C taken out the
first wedge FF' shown in Figure 5 and which consists of two parts (or of three
parts as shown in Figure 3) is taken out by means of a screwed handle M Figure 6,
the part F being provided with a screwed hole into which the screwed end of M
is screwed for taking hold of it. The other part F' which is provided with a
notch 2 below is then pulled out by means of the handle R Figure 7 which has
a corresponding nose n. The first wedge F1 F2 having been thus removed the
adjoining cakes of sugar are removed by means of the same handle R, and so that
the pointed nose n¹ is pushed under the edge of the cake of sugar nearest the
centre of the machine and the cake then pulled out The other cakes are then
similarly removed, and the other wedge pieces F which are made in one piece each,
but have the same notch 2 as the wedge F1 F2 are removed by putting the Bose n
of the handle R under same. The notches 2 do not disfigure the cakes as the
material by the centrifugal action is drawn away therefrom about inch.
I shall only add that hydro extractors with fixed bearings as well as those with
so called buffer bearings may be used with the aforesaid process, as the arrange-
ment of the felt washer on the hose pipe N admits of lateral movement of the
drum.
If the wedge pieces F are provided with ribs s as shown in Figure 3 the cakes
'of sugar may be easily broken by hand.

page_text: Having now particularly described and ascertained the nature of said Inven-
tion and in what manner the same is to be performed I declare that what
I claim as the Invention communicated to me is
First The manufacture of refined sugar in cakes according to which all the
operations necessary for the purpose such as filling, claying and drying are
performed quickly and consecutively in one and the same apparatus viz: the
hydro-extractor substantially as set forth.
Second-The application and use for the purpose stated of the wedge shaped
partitions F and the cap C whereby equal drum compartments are formed wherein
the filling mass is poured and cakes of sugar of equal thickness are formed sub-
stantially as set forth.
Third: The cooling and crystallising of the filling mass in the hydro-extractor
at a slow revolution of the same without throwing out the syrup substantially as
set forth.
Fourth-The blowing in of hot air into the opening of the cap for the purpose
of drying the sugar substantially as set forth.
:-
Fifth The combination of parts forming the improved construction of hydro
extractor substantially as set forth.