Improvements in the Constructs
Year: 1888

page_text: Improvements in the Constructs
We, CARL STEFFEN of No. 2 Hongasse, Vienna, Austria, Engineer, and CARL
JACOB LANGEN of the Firm of "F. Langen & Hundhausen "of Grevenbroich,
Germany, Engineer, do hereby declare the nature of our Invention for "IMPROVE-
MENTS IN THE CONSTRUCTION OF CENTRIFUGAL MACHINES" and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statenient :-
This invention relates to the construction of a centrifugal machine for treating sugar
in loaf form.
The well known centrifugal machines for drawing fluid out of sugar loaves are all
so constructed that the loaf form is placed with its tip on the bottom of the drum,
whereby only a relatively small number of forms can be placed in the said druin which
has the disadvantage that such centrifugal machines prove expensive plant in
comparison with the work done by the same.
The construction of our improved centrifugal machine is such that the loaf forms
need not be placed with their apex on the bottom of and within the rotary drum but
are inserted in the lattice like or perforated wall of the said drum and are so retained
in the orifices or borings of the same and between the same and the outer stationary
mantle of the said centrifugal machine that the periphery of the drum is utilized to the
fullest extent for receiving a large number of loaf forms thus producing an enormously
increased capacity in comparison with the centrifugal machines now in use.
In the accompanying drawings, Fig. 1 is a vertical section of a part of one
of our improved centrifugal machines.
Fig. 1 represents a modified arrangement of the openings or orifices in the rotary
drun for receiving the loaf forms.
Fig. 2 is a vertical section on an enlarged scale of a conical and a cylindrical
bearing for retaining the loaf forms in the drum of centrifugal machines of larger
diameter.
Figs. and represent bearings for the loaf forms for centrifugal machines of
medium diameter also on an enlarged scale.

page_text: A is the rotary drum which receives its motion from the driving shaft a and is
provided in its periphery with suitable bearings for receiving the loaf forms B whereby
the bearings as represented in the accompanying drawings or any other suitable
bearings can be employed.
Cis the outer stationary mantle surrounding the rotary drum and the loaf forms,
the bottom of which is inclined downwards towards the periphery and is provided
with a suitable tube or pipe b for leading off the fluid saccharine mass passing off from
the sugar in the forms.
Various forms of bearings for the loaf forms are represented in the Figs. 2, 3 and 4.
The loaf forms are provided with a ring B which is either rivetted to the
form (Fig. 3) conically driven on to old forms (Fig. 4), attached to the form in other
suitable manner or made of one piece with the same in order to securely hold the
forms in their bearings when subjected to contrifugal force in driving the liquor out of
the loaf contained in the form B.
The bearings for the loaf forms B in the wall of the drum of the centrifugal machine
can be made by fitting a conical or cylindrical piece of tube a' into the openings in
the said drum substantially as shown in Fig. 4. For drums of larger diameter we
prefer the construction represented in Fig. 2, according to which strong wrought iron
rings 1) are fixed around the openings in the drum in order to avoid a rupture of the
same when the drum is rotated.
The loaf forms are held by cylindrical or conical pieces of tubing a', similar to
those shown in Fig. 4, said pieces of tubo having preferably their bearing against the
strong rings D.
Centrifugal machines constructed in this manner can not only be employed for
driving off all fluid from sugar loaves but also for forcing, clearing or washing liquor
through the same.
Having now particularly described and ascertained the nature of my invention, and
in what manner the same is to be performed, I declare that what I claim is:—
In centrifugal machines for treating loaves of sugar, the construction of the rotary
drum A in such manner that the forms B containing the sugar loaf are inserted in
openings or borings in the wall of the drum A. which have their bearings in the same
so that the perforated wall of the said drum receives the weight of the forms B, and so
that the apex and forward part of such form is susponded in the space between the
wall of the drum A and the outer stationary mantle of the machine, substantially as
set forth and shown on the drawings.