IMPROVEMENTS IN PRESSES FOR COMPRESSING SUGAR. IN LOAVES. SLABS, AND OTHER FORMS
Year: 1879

page_text: LETTERS PATENT to Robert Pzillas, of Brieg, Breslau, in the German Empire,
for the Invention of "IMPROVEMENTS IN PRESSES FOR COMPRESSING SUGAR.
IN LOAVES. SLABS, AND OTHER FORMS."
Sealed the 27th February 1880, and dated the 11th September 1879
PROVISIONAL SPECIFICATION left by the said Robert Pzillas at the Office
of the Commissioners of Patents on the 11th September 1879.
ROBERT PZILLAS, of Brieg, Breslau, in the German Empire.
"IMPROVEMENTS IN
PRESSES FOR COMPRESSING SUGAR IN LOAVES, SLABS, AND OTHER FORMS."
According to my present Invention I effect the compression of sugar in moulds
by attaching the latter to the lower end of a vertical shoot or receptacle of some
height filled with sugar in a moist condition, through which the sugar descends into
the mould, and to which shoot, together with the mould, an up and down motion
is imparted in such manner that at each descent the mould is brought with its lower
end forcibly against a stop. By thus suddenly arresting downward momentum
imparted to the column of sugar in the shoot and mould, that contained in.the latter
will become compressed to such an extent and in so uniform a manner throughout
as to form a solid loaf, slab, or otherwise shaped mass, according to the form of the
mould employed.
The upper end of the shoot works up and down through the mouth of a hopper,
in the lower part of which are revolving blades for causing the sugar to descend into
the shoot, while in the upper part are reciprocating arms for stirring up the sugar
and preventing it from caking. The up and down motion may be conveniently
imparted to the shoot and mould by means of a crank shaft below connected by
rods to pins on the sides of the shoot, and the degree of compression to which the
sugar is subjected may be regulated by causing a ratchet wheel and pawl worked
by the shaft to move a lever so as to throw the clutch of the driving pulley out of
gear after a certain number of revolutions. The shaft also drives a rotary cutter
fixed to the frame of the press, by means of which the sugar in the mould, after
this has been filled as described and removed from the shoot, is cut away to a slight
extent at the open end of the mould, so that on such open end being brought down
with a sharp blow on to a plate the sugar loaf will readily become detached from
the-mould.

page_text: •
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Robert Pzillas in the Great Seal Patent Office on the 1st March
1880.
;
"IMPROVEMENTS IN
ROBERT PZILLAS, of Brieg, Breslau, in the German Empire.
PRESSES FOR COMPRESSING SUGAR IN LOAVES, SLABS, AND OTHER FORMS."
According to my present Invention I effect the compression of sugar in moulds
by attaching the latter to the lower end of a vertical shoot or receptacle of some
height filled with sugar in a moist condition, through which the sugar descends
into the mould, and to which shoot, together with the mould, an up and down
motion is imparted in such manner that at each descent the mould is brought with
its lower end forcibly against a stop. By thus suddenly arresting the downward
momentum imparted to the column of sugar in the shoot and mould, that contained
in the latter will become compressed to such an extent and in so uniform a manner
throughout as to form a solid loaf, slab, or otherwise shaped mass, according to the
form of the mould employed.
The upper end of the shoot works up and down through the mouth of a
hopper, in the lower part of which are revolving blades for causing the sugar
to descend into the shoot, while in the upper part are reciprocating arms for
stirring up the sugar and preventing it from caking. The up and down motion
may be conveniently imparted to the shoot and mould by ineans of a crank
shaft below connected by rods to pins on a collar embracing the sides of the
shoot, and the degree of compression to which the sugar is subjected may be
regulated by employing a longer or shorter shoot, or by causing a ratchet wheel
and pawl worked by the shaft to move a lever so as to throw the clutch of the
driving pulley out of gear after a certain number of revolutions. The shaft also
drives a rotary cutter fixed to the frame of the press by means of which the sugar
in the mould, after this has been filled as described and removed from the shoot, is
cut away to a slight extent at the open end of the mould, so that on such open end
being brought down with a sharp blow on to a plate the sugar loaf will readily
become detached from the mould.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 of the accompanying Drawings shews a sectional front elevation; Fig. 2,
a cross section; and Fig. 3 a sectional plan of the before described apparatus for
compressing moist centrifugal sugar in moulds. a is the shoot down which the
sugar descends from the hopper d into the mould b. Embracing the shoot is a
collar chaving pins to which are connected rods e actuated by the crank shaft f
so as to impart to the shoot a and mould b an up and down motion. On its descent
the mould b is brought sharply against the fixed stop h, by preference of wood,
whereby the sugar in the mould and hopper are subject to a sharp concussive
action, resulting in the compression of the sugar in the mould and the effectual
filling in of all interstices therein, and producing after a repeated number of such
blows a solid loaf composed of a very uniformly arranged mass of crystals. On
the completion of such compression the mould is removed and a fresh one attached
to the shoot. The compression of the sugar may be regulated either by employing
a longer or shorter shoot, or by causing its motion to be arrested after the sugar
mould has been subjected to a certain number of blows.
For the latter purpose a
ratchet wheel i fixed on a screw spindle is actuated by a pawl j worked by an
eccentric on the shaft f so as by means of a disengaging lever moved by the screw
spindle to throw the clutch k out of gear with the driving pulley after the shaft f
has performed a certain number of revolutions, the pulley being loose on
the shaft.
For causing the sugar to descend in a uniform manner into the shoot there are
provided in the hopper, firstly, revolving blades m; and, secondly, reciprocating

page_text: arms n, o, to which motion is imparted from a pulley on the shaft ƒ by a strap p,
shaft q, and eccentric r.
On removing the sugar mould from the shoot it may be placed on a bracket 8,
as indicated at Fig. 1, in order to have the end surface of the sugar cut away
somewhat by means of a rotary cutter t driven from the shaft f. By thus forming
a small space between the bottom of the sugar loaf and that of the mould, the
former may be loosened in the latter by subjecting the mould with its open end
downwards to a sharp blow.
Having thus described the nature of my said Invention, and in what manner
the same is to be performed, I claim,―
First. Effecting the compression of moist sugar into solid forms by subjecting it
to concussion within moulds temporarily attached to hoppers or shoots, through
which the sugar passes into the moulds, and to which motion is imparted for
producing the necessary concussion of the sugar, substantially as herein described.
Second. The use of apparatus for compressing sugar in moulds by concussion,
constructed and operating substantially as herein described with reference to the
accompanying Drawings.
In witness whereof, I, the said Robert Pzillas, have hereunto "set my hand
and seal, this Twenty sixth day of February, in the year of our Lord One
thousand eight hundred and eighty.