IMPROVEMENTS IN DISINTEGRATING-APPARATUS FOR FLOUR-MILLS
Year: 1883

page_text: LETTERS PATENT to Carl Pieper Civil Engineer and Patent Agent resident
at 109-110 Gneisenaustrasse, Berlin, S.W., Prussia for an Invention of
"IMPROVEMENTS IN DISINTEGRATING-APPARATUS FOR FLOUR-MILLS" & commu-
nication to him from August Christian Nagel, Reinhold Hermann Kaemp, and
Adolph Linnenbrügge, all of Hamburg, German Empire
PROVISIONAL SPECIFICATION left by the said Carl Pieper at the Office of
the Commissioners of Patents on the 5th March 1883.
CARL PIEPER, Civil Engineer and Patent Agent, resident at 109/110 Gneisenau-
strasse Berlin, S.W., Prussia, "IMPROVEMENTS IN DISINTEGRATING-APPARATUS
FOR FLOUR-MILLS," a communication to me from August Christian Nagel, Reinhold
Hermann Kaemp, and Adolph Linnenbrügge, all of Hamburg, German Empire,
This invention relates to disintegrating-apparatus such as are used for com-
minuting grain, and it consists in the employment in these apparatus of fan-blades
fixed either on the edge of the rotative disk carrying the beating-pins, or on the
shaft of the same, and in the combination with such blades of a channel leading to
the machine or apparatus on which the grist produced is to be sifted or purified, or
to a collecting chamber, the object of the invention being to convey the grist to its
place of destination by means of the air-current created by the fan-blades.
The improvements are especially intended to be applied to the disintegrators
described in the specifications of the British letters patent A.D. 1877, No. 4099, and
A.D. 1878, No. 4033, but they may also be used with other apparatuses of the
Bame kind.
In all cases the fan-blades are surrounded by a channel, the sectional area
whereof increases towards its outlet end, and which communicates with the pipe or
conduit leading to the machine or place to which the grist is to be conveyed.
When the improvements are to be used in combination with the aforesaid patented
apparatus which, in order to prevent, as much as possible, air from passing between
the beating-pins, are closed all around, special orifices have to be provided for by

page_text: which an ingress of air to the fan-blades can take place. In case the blades are on
the rotating pin-disk, the orifices are arranged between the outer row of pins and
the path of the blades, whereas, when the blades form a separate fan keyed on the
shaft of the pin-disk, air has to be admitted into the space or channel between the
pin-disk and the fan. In the latter case, the fan may consist of a disk provided
with blades on both sides, those on one side serving to draw in air together with
the grist produced, while the other blades aspire an additional quantity of air and
mix the same with the current of air and grist delivered by the former. All
apertures for the admission of air are or may be provided with regulating valves or
slides.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Carl Pieper in the Great Seal Patent Office on the 3rd September
1883.
:
CARL PIEPER Civil Engineer and Patent Agent resident at 109–110 Gneisenau-
strasse Berlin S.W. Prussia IMPROVEMENTS IN DISINTEGRATING APPARATUSES FOR
FLOUR-MILLS, & communication to me from August Christian Nagel, Reinhold
Hermann Kaemp and Adolph Linnenbrügge, all of Hamburg, German Empire
This invention relates to disintegrating apparatuses such as are used for
comminuting grain, and it consists in the employment in these apparatuses of
fan-blades fixed either on the edge of the rotative disk carrying the beating-pins,
or on the shaft of the same, and in the combination with such blades of a channel
leading to the machine or apparatus on which the grist produced is to be sifted or
purified, or to a collecting-chamber, the object of the invention being to convey the
grist to its place of destination by means of the air-current created by the fan-
blades.
The improvements are especially intended to be applied to the disintegrators
described in the specification of the British letters patent A.D. 1877 No 4099 and
A.D. 1878 No. 4033, but they may also be used with other apparatuses of the same
kind.
Fig. 1 of the annexed sheet of drawings represents in vertical longitudinal section
a double disintegrator having fan-blades on the rotating pin-disk; Fig. 2 is an
end view thereof, partly in section. Fig. 3 shows in vertical longitudinal section a
disintegrator the rotating disk whereof is provided with pins on one side only, and
with which is combined a fan placed sideward of the pin-disk on the shaft thereof.
Fig. 4 shows in a like section, and Fig. 5 in a sectional end view, a machine which
is substantially the double of the foregoing.
In all cases the fan-blades are surrounded by a channel & the sectional area
whereof increases towards its outlet end, as can be seen to best advantage in Fig. 5.
This channel communicates with the pipe or conduit leading to the machine or
place to which the grist is to be conveyed.
For the purpose of freely admitting air to the fan-bades, orifices are provided for,
by which such admission may take place outside of the beating-pins. Especially
when the improvements are to be used in combination with the aforesaid patented
disintegrators, which are closed all around, in order to prevent, as much as possible,
air from passing between the beating pins, these orifices are indispensable. In
case the fan-blades c c are on the rotating pin-disk a, as in Figs. 1 and 2, the said
orifices, marked in these figures by the letter e, are arranged between the outer row
of pins and the path of the blades c. The apparatus being in operation, the
comminuted material is thrown by the pins of the disk a into the air-current
entering by the orifices e, so that it will then be carried onward by the current,
while simultaneously it is effectively cooled.
Fig. 3 shows a disintegrator in which the fan-blades c are attached to arms or a
disk fastened on the shaft of the pin-disk by the side of the latter. The air by
which the grist is to be conveyed, enters in this case at e' into the space between
the pin-disk and the fan. In addition to the blades c, the fan-disk may be
provided with the blades c¹ serving to draw in air by openings g and to mix the
same with the current of air and grist delivered by the former.
The arrangement of the double disintegrator represented by Figs. 4 and 5 is
analogous to that of the apparatus shown by Fig. 3. The air which is to take up
the grist is again drawn in by the blades c through the channels e', while the
additional quantity of air to be delivered by the blades c' enters at g. All the

page_text: .
apertures for the admission of air are or may be provided with valves or slides for
the purpose of allowing the quantity of air which is to be mixed with the
comminuted material, to be so regulated that the latter, will remain properly
suspended in the current, but without the employment of an unnecessary excess of
air. In Figs. 3 and 4 regulating slides are shown at f.
With the conveying-pipes arrangements in the style of middlings-purifyers may
be combined for the purpose of assorting the grist according to the specific gravity
of its particles.
The advantages of the described improvements are the following:
Firstly; Simplification of the driving arrangements, inasmuch as the com-
minution, the cooling and the conveying of the grist is brought about by the.
.application of power at a single point only, i.e. to the driving pulley of the
machine;
.
Secondly; Economy in power, as no working of separate ventilators or conveying
devices is required;
Thirdly; Efficient cooling of the grist.
Having thus described the nature and object of this invention and the manner
in which it is to be carried out in practice as communicated to me by my
correspondents, I hereby claim as new and important feature of the same:
In disintegrating apparatuses acting by means of beating pins on the material to
be comminuted, the employment of fan blades fixed on the rotating pin-disk or on
the shaft thereof, in combination with a channel of increasing width encircling the
fan blades and with orifices admitting air between the beating pins and the fan-
blades, for the purpose of conveying the grist by means of the air-current produced
by the said blades through the said channel and a pipe connected therewith, to its
place of destination, substantially as hereinbefore described.
In Witness whereof I the said Carl Pieper have hereunto set my hand and seal
this twenty ninth day of August in the year of our Lord One thousand eight
hundred and eighty three.
CARL PIEPER (10)