Year: 1887

page_text: Divak meal.
We, EMIL WEISS, Miller, & LOUIS FRAENKEL, Merchant, both of 64 Currystr., at
Berlin in the Kingdom of Prussia, German Empire do hereby declare the nature of
this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
The
The purpose of the machine described hereinafter is to separate the coarse ground
material, gained by the process of crushing grain between pressing rollers.
different parts of the ground material coming from the crushing rollers adhere still to
one another and these parts, namely, husks, bran and flour are to be separated from
cach other, so that they may be sifted afterwards by other machines.
This machine is distinguished by the employment of short cylinders arranged one
above the other which rotate on a vertical axle in an outer cylinder over the inside of
which steel wire gauze is stretched. The cylinders are covered on the outside likewise
with wire gauze. Rings are attached to the outer cylinder between the cylinders,
mentioned above, to keep them apart and to assist them in their work. The rotating
cylinders are provided on their underside with wings and the rings have open spaces.
These spaces are placed in such a position to each other, that the material, when
conducted into the machine is forced to remain exposed to the effect of each cylinder
covering for at least half a revolution before it can fall through the open space of the
ring to the next plate. From there the material is thrown to the outside of the next
cylinder by the next wing or fan and the latter conducts it to the cylinder below.
The fans are suspended closely over the upper surface of each cylinder below them.
The effect produced by the steel wire gauze of the rotating cylinders is such, that
the coarse material, coming from the mill in a merely crushed state, is completely
shelled and separated in all its parts. The covering of the outer cylinder is provided
with four cornered steel wire gauze. The upper part of the short cylinders is conical
and the under part is provided with four or more fans. The coverings I II III IV of
the different cylinders are provided with steel wire gauze. The outer casing of the
machine is made in two parts, each of which forms a half-cylinder. By pressing the
two half-cylinders asunder or together, the diameter of the outer casing can be
regulated as may be required.
Fig. 1 of the drawing shows the machine partly in side view, partly in vertical
section through the line a. y.
Figs. II III & IV show horizontal sections through the lines M N. O P. R. S.
Fig. V. shows a part of the outer casing.
The construction of the machine is the following:
The casing a b c d which is composed of two parts, is fixed to the base m. The

page_text: inside of casing abed is covered with steel wire gauze; in addition to this, casing a b....
is provided with several rings r arranged one above the other. The rings are
provided with slits a'. The vertical shaft w, which may be driven by the pulley w¹
runs in the centre of the stationary cylinder a b c d. The cylinders I II III IV, the
peripheries of which are likewise covered with steel wire gauze, are secured firmly to
the shaft w. The upper side n of these cylinders I II III IV is slanted off on the
outside. Several fans fare fastened to the under side of each cylinder and reach close
over the upper surfaces of the next cylinder below them. is the feed-opening for
the meal that has to be operated on.
The way in which the machine works is as follows:
The crushed or coarse ground-grain falls through the opening into the machine
and is thrown by the turning of the cylinder I. It falls between the outer cylinder a
and the periphery of the uppermost cylinder I and is ground fine there. From this
interspace the grain falls on to the ring from which it is seized by the rotating
wing that sweeps over and cleans the ring. Wing then forwards the material
by centrifugal-power to the opening a' in the ring through which it falls on to the
next plate below.
7"
When the material reaches this plate the centrifugal power drives it to the periphery
and is assisted therein by the slanting upper surface n of the second cylinder. The
material is treated between the covering of the second, third and following cylinders
and the outer cylinder in the same way as above described.
In addition to the services rendered by the centrifugal power, the wings assist in
moving the material from compartment to compartment by sucking down air out of
the feed-funnel k. By this means the material, which gets heated by the continuous
grinding, dismembering and shelling is constantly kept cool.
When the material has passed the four cylinders the separating and shelling of the
component parts is completed and they escape through channel ¹, to be sifted by
means of another machine.
A very important innovation in this machine as regards the treatment of the
different parts, is the employment of the adjustable outer wire gauze cylinder, such as
is represented in Figs. II & III. The diameter of the outer cylinder can be reduced
by pressing the two half-cylinders together. It is not of great importance, that the
cylinder remains perfectly circular, when pressed together.
The cylinder can therefore be made adjustable in the simplest way, by laying
thicker or thinner intermediate strips or pieces between the two half-cylinders which
are held together by screws s. This suffices to allow the machine to treat different
kinds of meal coarse or fine as may be required.
Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed, we declare, that what we claim is:
1.) The employment of rotating cylinders which are placed one above the other and
are provided at their peripheries with a, wire gauze in combination with a stationary
casing or outer cylinder fitted on its inner side with a wire gauze for the purpose as
described.
2.) The employment of rotating cylinders I II III IV which are placed one above
the other and are provided at their peripheries with a wire gauze in combination with
fans, fixed to the under surfaces of the cylinders and a stationary mantle or outer
cylinder a bed fitted on its inner side with a wire gauze and with rings r for the
purpose as described.