Improvements in Apparatus for Silting, Bolting, or sorung and other Ground, or Granular, or Pulverulent Material.
Year: 1888

page_text: Date of Application, 11th June, 1888
Complete Specification Left, 11th Mar, 1889
Complete Specification Accepted, 13th Apr., 1889
Improvements in Apparatus for Silting, Bolting, or sorung
and other Ground, or Granular, or Pulverulent Material.
Meal
I, CARL HAGGENMACHER, of Rudolfs quai 8, Buda-Pest, in the Kingdom of Hungary,
Director of Grinding Mills, do hereby declare the nature of this invention to be as
follows.-
This invention relates to improved methods and apparatus for sifting, bolting or
sorting meal or other ground or granular or pulverulent materials for which Letters
Patent No 10644 and 1064 of 1887 have been granted to me, in which the material
to be sifted or sorted is caused to pass over sieves or screens having a rapid horizontal
oscillating or swaying motion imparted to them and whose surfaces are provided with
projecting fillets or bars so arranged as to cause material coming in contact therewith
to be thrown sharply backwards and forwards over the screening surface while at the
same time it is guided thereby from the inlet to the outlet point of the sieve In
combination with such sieves or screens were also used granular bodies which in
moving backwards and forwards over the screening surfaces, kept the meshes free
and prevented them from becoming clogged with the meal, for which purpose the
granular bodies were introduced together with the meal and moved with the latter
over the screens
According to the. present improvements there are arranged underneath the sifting
or bolting screens so called "screen bottoms" having propelling fillets so arranged that
granular or globular bodies of a comparatively large size, such for example as wooden
balls of from in to in diameter are caused thereby to travel constantly in a path
returning in itself so that they are always retained on the screen hottoms. The improve-
ments further consist in constructing the sieves or screens with one or more partitions
down the middle of their length, each compartment having a series of propelling bars
or fillets, so that the material to be operated upon, being fed separately into each
division, is operated upon separately therein and discharged through separate openings.
Such screens may be advantageously arranged in the following manner.

page_text: A suspended horizontal casing receiving the requisite oscillating or swaying motion
in any suitable known manner has placed within it five, or more or less, frames of
which the uppermost one merely serves to hold the others in place while the second
one is formed with a suitable sifting on bolting surface divided into two or more
compartments by partitions and receives at one end the material to be sifted or
soited.
Each compartment of this screen is provided with the beforementioned propelling
and guiding fillets, which cause the material to travel backwards and forwards over
the whole surface, the particles that do not pass through the meshe- being delivered
though a shoot at one end on to the bottom of the fourth frame which is provided
with a similar screening on bolting surface also having propelling and guiding fillets,
and from which the particles that do not pass though it are discharged through a
shoot that may lead out of the apparatus, or into a compartment of the bottom sieve
The meal that passes through the bottom of the second and fourth frames falls
respectively into the third and fifth frames, which have a canvas bottom and contain
the before mentioned globulu cleaning bodies which are caused by the rangement
of the propelling and guiding fillets to travel continuou-ly round and round in the
same path The meal that passes through the bottom of the third frame into the
Touth frame is there treated together with the material conung trom the fist screen
as above described, the material remaining on the thud frame, whose bottom
consists of canvas, being conveyed away through shoots at one end thereof The fifth
frame, having at-o the bottom of canvas, is divide i into a number of separate com-
partments corresponding to the number of different degrees of fineness into which the
Surface of the fourth screen is divided, each such compartment having some of the
before mentioned globular cleaning materials and having a separate discharge opening
covered with a material having meshes of sufficient fineness to prevent the balls from
passing through
There may also be mixed with the meal to be treated gianular cleaning materials
such as are described in the before mentioned patents, in which case these materials
are retained in the meal until this arrives at the discharge end of the fourth frame,
where this is formed with meshes of sufficient size to allow the remaining coarse meal
to fall into the bottom sieve, while it retains the cleaning material which passes
away through a shoot to be again added to the meal ted into the top sieve
Dated this 11th day of Jona 18et

page_text: Improvements in Apparatus for Sifting, Bolting, or Sorting Meal
and other Ground, or Granular, or Pulverulent Material.
I, CARL HAGGENMACHER, of Rudolphsqua 8 Budapest, in the Kingdom of
Hungary, Duector of Grinding Mills 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 improved methods and apparatus for sifting, bolting
o sorting meal or other ground or granular or pulverulent materials for which
Letters Patent No 10644 and 10645 of 1887 have been granted to me, in which
the material to be sifted or sorted is caused to pass over sloves or screens having
a rapid horizontal oscillating or swaying motion imparted to them in a more or
less circular path, and whose surfaces aie provided with projecting fillets or bars
so arranged as to cause the material coming in contact therewith to be propelled
along the channels over the screening surface so that it is guided thereby from
the inlet to the outlet point of the sieve In combination with such sieves or
screens were also used granular bodies which in moving over the screening surfaces
kept the meshes free and prevented them from becoming clogged with the meal, for
which purpose the granulai bodies were introduced together with the meal and moved
with the latter over the screens.
According to the present unprovements the screen bottoms, which are provided
with propelling fillets and placed underneath the suiting or bolting screens are so
ananged that granular or globulai bodies of a comparatively large size fo: instance,
balls (of hardened indiarubber or hollow iron balls) of from in to in diameter or small,
flat or globular brushes are caused thereby to travel constantly in a path returning in
itself, so that they are always retained on the screen bottoms
The improvements further consist in constructing the sieves on screens divided into
one or more parts, which divisions in the accompanying designs are arranged down
the middle of their length, each part having a series of propelling bars or fillets, so
that the material to be operated upon being fed separately into each division, is
operated upon separately therein and discharged through separate openings
The accompanying drawings shew a construction of apparatus according to my present
invention. Fig 1 shews a longitudinal section on line A B Fig 3, Fig 2 a cross
section on line C. D Fig. 3, Fig. 3 a plan of the principal frame of the inserted fifth
frame (bottom frame) the latter being shewn in horizontal section Figs 4, 5, 6
and 7 show horizontal sections, of the sifting intermediate bottom, and filling out
frames, of which cross sections are shown at Figs. 8, 9, 10 and 11
On the bottom of the main frame R are placed one above the other the frames
No 5 to 1 and upon the latter is the cover d which is pressed down by screws so as to
fix the several frames in position and make a tight joint between them
All frames are provided with longitudinal bar or fillets and transverse bars or
fillets y the bars that he in the direction of the passage of the material operated upon

page_text: are made to form the channels for guiding such material, while those situated at right
angles to such passage serve to propel and distribute the material, and for this purpose
they have shallow distributing edges or openings at the level, which the material is to
assume, the under edges of which openings correspond to such level. For the covering
of the frames wire or silk gauze is usually employed for the sifting frames, while for
the intermediate and bottom frames canvas is usually employed
The first frame Figs 7 and 11 serves only for filling out the space between the
second frame and the cover, it can however be made to serve for an extension of the
sifting process by constructing it the same as the other sifting frames or it may be
merely covered with canvas so as to serve for loosening the material
The main frame R is suspended by rods g and receives a horizontal oscillating or
swaying motion by means of a crank K
The material to be acted upon entering through the inlet E (Fig 6) is caused by
the action of the bars or fillets y to be distributed and propelled in the direction of the
arrows over the sieves of the second frame and passes through the openings E' on to
the sieves of the fourth frame where it is again made to travel in the direction of the
arrows. The part of the material that passes through the sieves of the second frame
falls upon the third frame, that is on the intermediate bottom which is covered with
canvas, and passes through the openings c covered with wide meshed materials into
the discharging shoots a In like manner the materials passing through the sieves of
the fourth frame fall into the channels of the fifth frame and is there led to the
discharge openings a¹ and a
The formation of the channels in the several sieves is not in all cases the same, but
varies in construction according to the function fulfilled by each frame, as shewn by
way of example on the drawings, which arrangements may however be variously
modified
The clogging of the sifting meshes is prevented on the one hand by the rapid
motion of the material treated, on the other hand by adding to the material either
before or at the time of its entrance into the apparatus a small quantity of cleaning
bodies, preferably broken gian, semolina, grains or any other convenient material or
bodies, which in working are continuously used over again The meshing of the
sifting surfaces are so chosen, that these cleaning bodies only separate from the
material sifted in the last partition of the second sifting frame (Fig 4 fourth frame)
the coarsest particles of the material to sift being made to pass through the sieve
opening into the last division of the bottom frame where it is collected to the
discharge openings a while the cleaning bodies which are more large grained are
retained by the sieve f and pass to the discharge openings a³ whence they are led
through shoots to the supply apparatus which feeds the machine here described
The different channels of the intermediate and bottom frames (Figs. 5 and 3) are
also provided with guiding bats a forming paths returning in themselves and having
distributing fillets y and sieve openings
On placing these fiames in the main frame there are placed thereon comparatively
larger sized bodies than those which are used on the sieves (for example one or several
hollow iron balls of about in to fin. diameter) or flat or globular brushes, sinall
boards or blocks or any other convenient material as bottom cleaning bodies, which
circulate continuously in these frames, while the sifted material passing on to the
frames is led away through the sieve openings a¹ and a².
These cleaning bodies serve to prevent the sifted material from adhering to the bars
of the frames and their clothing. In each of the frames there is a separation bar z
running longitudinally through the same (or there may be several hereof) whereby
each frame and consequently the whole machine is divided into two or more equal
parts.
Each part may be made to treat one and the same description of material or a
different kind of material. If only one kind of material is to be treated, the number
of discharge openings can be reduced to one half, as these are in that case placed under
the partition so that two adjacent parts on each side of the partition have a common
discharge opening

page_text: The above described improved construction of apparatus, like those described in my
before mentioned prior patents ny be used not only to sitting or bolting meal, but
all other ground or granulu or pulverulent material For all these sitting machines,
as also foi the processes carried out thereby, it is to be understood that the arrange-
ment for imparting the requisite swaying motion thereto are of well known and the
most various consti uction and form no part of my present invention and they
require therefor no further description
I am also aware, that before now cleaning bodies for instance, india rubber ball-
have been employed on perforated bottonis for clean the sieves situated above them in
such a manner that these bottoms are divided in a corresponding number of closed
compartments, in which these balls are thrown forwards and backwards through the
shaking motion of the machine
Such is not the arrangement, which I claim as my invention, this consists as
before described of one or more divisions forming channels returning into themselves
provided with bars, in which channels the cleaning bodies are forced through the
swaying notion of the apparatus to enculate continually in the intended directions.
Having now particularly described and ascertamed the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is
-
1 In sifting or bolting apparatus of the kind hetem referred to, the use of screen
bottoms and intermediate screen bottoms having bars or fillets so arranged, as to
cause cleaning bodies, which are considerably larger than the goods to be sifted,
situated on such frames to travel in a path returning into itself, while at the same
time they receive therefrom a shaking or vibrating motion such as to prevent the
adhesion of the sifted material to the frame or their clothing substantially as herein
described
2 In sifting or bolting apparatus such as is herein referred, to providing the
Soveral sitting and screen-bottom frames with one or more partition bars, so as to
divide them into two or more independent divisions in which two or more different
hands of material can be treated simultaneously
3 The construction of sifting or bolting apparatus with sifting frames and inter-
mediate and lower screen bottoms combined and operating as herein described with
reference to the accompanying drawings.
Dated this 11th day of Miroh 1889
ABEL & IMRAY,
Agents for the Applicant.