IMPROVE- MENTS IN CENTRIFUGAL APPARATUS FOR THE MANUFACTURE OF STARCH BLOCKS
Year: 1882

page_text: LETTERS PATENT to Charles Denton Abel of No 28 Southampton Buildings
Chancery Lane in the County of Middlesex for an invention of IMPROVE-
MENTS IN CENTRIFUGAL APPARATUS FOR THE MANUFACTURE OF STARCH
BLOCKS A communication from abroad by the firm of C. Rudolph and
Company of Neustadt-Magdeburg in the German Empire.
PROVISIONAL SPECIFICATION left by the said Charles Denton Abel at the
Office of the Commissioners of Patents on the 27th February 1882.
"
CHARLES DENTON ABEL of No 28 Southampton Buildings Chancery Lane in
the County of Middlesex "IMPROVEMENTS IN CENTRIFUGAL APPARATUS FOR THE
MANUFACTURE OF STARCH BLOCKS [A communication from abroad by the
firm of C. Rudolph and Company of Neustadt-Magdeburg in the Gorman
Empire.]
This invention relates to the construction of centrifugal apparatus wherein the
starch milk is filled into receptacles which are then subjected to centrifugal action
whereby the liquid is expelled and the starch retained in the receptacles in the
form of solid blocks to be afterwards removed.
For this purpose a vertical shaft revolving within a stationary casing carries at
its upper end a number of radial arms with hooked ends, and upon these hooked
arms are hung by means of trunnions receptacles or boxes of any desired shape,
but by preference rectangular, which hang down vertically upon their trunnions
when the shaft is stationary, but which swing out to a horizontal position when
the shaft revolves. The tops of the boxes are open, while the bottoms are closed
by a bottom of permeable material that will allow of the escape of the water but
will retain the starch. Thus on filling the boxes and then causing them to revolve
rapidly with the shaft, the water is expelled by centrifugal action through the
permeablo bottom, while the starch is retained in the form of solid blocks, which
...nll

page_text: are then removed from the boxes, to facilitate which these are by preference mado
somewhat tapering towards the lower end.
The permeable bottoms are by preference composed of a perforated plate on
which is a layer of wire gauze that is again covered by a piece of cloth or felt.
The bottom may either be fixed to the box, or it may be made removeable, in which
case it is provided with an angle iron rim that bears against a caoutchouc fillet
fixed to the lower end of the box.
The boxes may also be provided with a cover fitting loosely inside them, and
which is placed upon the starch milk when this has been introduced, serving both
to aid in expelling the water by its centrifugal force and to maintain a flat surface
on the outer side of the starch block.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Charlos Denton Abol in the Great Seal Patent Office on tho
24th August 1882.
CHARLES DENTON ABEL of No. 28 Southampton Buildings Chancery Lane in
the County of Middlesex "IMPROVEMENTS IN CENTRIFUGAL APPARATUS FOR THE
OF STARCH BLOCKS A communication from abroad by
MANUFACTURE
"
C Rudolph and Company of Neustadt Magdeburg in the German Empiro
This invention relates to the construction of centrifugal apparatus wherein the
starch milk is filled into receptacles which, are then subjected to centrifugal action
whereby the liquid is expelled and the starch retained in the receptacles in the
form of solid blocks to be afterwards removed.
For this purpose a vertical shaft revolving within a stationary casing carries at
its upper end a number of radial arms with hooked ends, and upon these hooked
arms are hung by means of trunnions receptacles or boxes of any desired shape,
but by preference rectangular, which hang down vertically upon their trunnions
when the shaft is stationary, but which swing out to a horizontal position when
the shaft revolves. The tops of the boxes are open, while the bottoms are closed
by a bottom of permeable material that will allow of the escape of the water but
will retain the starch. Thus on filling the boxes and then causing them to revolve
rapidly with the shaft, the water is expelled by centrifugal action through the
permeable bottom, while the starch is retained in the form of solid blocks, which
are then removed from the boxes, to facilitate which these are by preference made
somewhat tapering towards the lower end.
The permeable bottoms are by preference composed of a perforated plate on which
is a layer of wire gauze that is again covered by a piece of cloth or felt. The
bottom may either be fixed to the box, or it may be made removeable, in which
case it is provided with an angle iron rim that bears against a caoutchouc fillet fixed
to the lower end of the box.
The boxes may also be provided with a cover fitting loosely inside them and
which is placed upon the starch milk when this has been introduced, serving both
to aid in expelling the water by its centrifugal force and to maintain a flat surface
on the outer side of the starch block.
Fig 1 is a vertical section and Fig 2 a plan of the centrifugal machine with a
number of boxes for forming the starch blocks, Fig 3 is a section shewing the
bottom of one of the boxes to an enlarged scale, and Fig 4 a section of part of the
bottom to a magnified scale, Figs 5 and 6 shew a section and a sectional plan of a
modified construction of box. A casing A which may be made as shewn of metal
plate and rests on supports B has a central boss C forming a bearing for the vertical
shaft a the lower end of which revolves in a step b. The shaft a is caused to
revolve rapidly by bovil gear ff¹ driven by pullies d from any convenient motor.
On the shaft a is fixed a ribbed sheave D having bolted to its ribs a number of
fork arms i having hooked ends in which are engaged the trunnions m of the
boxes E. These boxes are caused by the centrifugal force to take a noarly horizontal
attitude throwing out through their perforated bottoms the moisture which is
collected in the casing A and runs off by a pipe o. The bottom of each of the
boxes E consists, (as shown in Figs 3 and 4) of a perforated plate or grating on
which is placed a layer of fine wire gauze and on it a layers of felt or thick

page_text: fabric permitting the passage of liquid but retaining the solid particles. In the
construction of box E' shewn in Figs 5 and 6 the bottom A¹ is loose consisting of
an angle iron rim D' on which is fitted the sieve plate F, the whole resting on a
caoutchouc ring G₁ supported on a fillet at the bottom of the box. C¹are the
trunnions of the box and B¹ is the loose cover faced with felt s¹ and provided with
a handle H'. This cover being pressed by centrifugal force against the contents of
the box causes the moisture to be more effectually expelled and renders the end of
the block of starch flat and even.
Having thus described the nature of this invention and in what manner the same
is to be performed as communicated to me by my foreign correspondents, I
claim
First. For the manufacture of starch blocks, the use of centrifugal apparatus
carrying boxes with porous bottoms arranged and operating substantially as herein
described with reference to Figs 1, 2, 3 and 4 of the Drawings.
Second. The modified construction of box with moveable cover, substantially as
described with reference to Figs 5 and 6.
In witness whereof I the said Charles Denton Abel have hereunto set my
hand and seal this twenty fourth day of August in the year of our Lord
One thousand eight hundred and eighty-two.
CHAº, D, ABEL. (L.S.)
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