Year: 1886

page_text: I, GUSTAV KAPLER, of Königgrätzer Strasse No. 77, Berlin, in the Empire of
Germany, manufacturer do hereby declare the nature of this invention to be as
follows:
This invention consists in so restraining the gauze or netting of a sifting machine,
which netting is allowed to ascillate or undulate continually, that it may not be
touched by the beaters of the internal revolving shaft.
For this purpose the gauze or netting is fixed to a frane consisting of elastic ribs
fixed either longitudinally with or transversely to the machine, these ribs may be
made of wood, iron, whalebone or any other suitably-elastic material.
When the grain or other matter to be sifted is thrown against this netting by
the beaters of the central drum, it causes the ribs to vibrate; in order however to
prevent them when vibrating from touching the beaters, a bolt is passed through a
collar fixed firmly to the outer framework of the machine and is fastened to the
centre of each of the ribs. By this contrivance the rib can vibrate easily within
certain limits it cannot however approach too near the beaters, on account of .the
head of the nut or bolt being met by the fixed collar, and stopped thereby. Or,
instead of the above-mentioned bolt, a cord can be used, having one end fixed to
the outer framework, and the other to the rib, the cord being of such a length. as
to prevent the said rib from touching the beaters.

page_text: Improvements in Sifting Apparatus.
I, GUSTAV KAPLER of Königsgrätzer Strasse No. 77, Berlin, in the Empire of
Germany, Manufacturer, 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:—
This invention relates to gauze-netting in sifting machines and the improvements
consist in
1.) Elastic ribs or cords, which are fastened to the sifting gauze outside the
same for the purpose of preventing the sifting gauze from coming in contact with
the beaters, when it is continually oscillating or undulating while working.
2.) Straining devices, secured to the elastic ribs or cords and serving to approach
the sifting gauze to or remove it from the beaters.
The accompanying drawing shows the cylinders of two sifting machines.
The application of elastic ribs is shown by Fig. 1 in longitudinal section, by
Fig. 2 in cross section, and of cords, by Fig. 3 in longitudinal section and by Fig. 4
in cross section. a is the sifting frame consisting of four parts al a³ a³ at; this
frame may however only consist of one part or of any suitable number of parts.
The sifting gauze bis fastened in a suitable manner to the four sides of the frames,
so however, that it forms the same are as the frames. As shown by Figs. 1 and 2,
elastic ribs e are arranged on the sifting gauze, which ribs may be of wood iron any
other material. These ribs are introduced above and below into the frame and
secured along their whole length to the sifting gauze.
The ribs e are provided in their middle with a clamp f, into which is screwed a
bolt h which passes through a ring g fastened to the frame a. The head of the
bolt rests on the outside of the ring g. The bolt is displaceable in the clamp f
and secured by a counter nut. In the cylinder rotates the fan-device with the
shaft c and the beaters d.
Fige. 3 and 4 show the same sifting frame, in which elastic cords i are arranged
in lieu of the ribs. The cords may be of hemp, silk, gut or any other suitable
material.
To the middle of these cords are attached the cords k, which pass through the
ring g and may be adjusted in length by means of the wedges or in any other
suitable manner.
Owing to the manner of stretching, the sifting gauze is allowed to undulate
continually, so that it is automatically freed from the particles, which obstruct the
openings, when working. By the arrangement of the ribs or cords, the movement
of the gauze is limited, so that it may be so adjusted as not to touch the beaters.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim, is:
In sifting machines:
1.) The fastening of the sifting gauze to elastic ribs, parallel to the shaft and
secured at their extremities to the frame.

page_text: •
2.) The fastening of the sifting gauze to cords of any suitable material, arranged
parallel to the shaft and connected at their extremities with the frame.
3.) The combination with the elastic ribs, to which the sifting gauze is secured,
of a ring g, clamp f and bolt h.
4.) The combination with the cords, to which the sifting gauze is fastened, of a
ring g, cord k and wedge 7 substantially as and for the purpose described.