Year: 1888

page_text: I HERBERT JOHN HADDAN of the firm of Herbert & Co, Patent Agents of
18 Buckingham Street, Strand WC London in the County of Middlesex, Civil
Engineer do hereby declare the nature of this invention, a communication to me from
abroad by Anton Wimmer of Scheibbs in the Empire of Austria, Engineer to be as
follows.
This invention relates to machinery for decorticating and cleaning grain in which
the grain is contained in perforated stationary cylinders and subjected to the action
of rotary rasps
The action of the rasps which are preferably disks of rough material supported on
a rotary shaft prevents the grain from lying level in the drum and carries it towards
the direction of rotation
That portion of the drum on which the grain lies, or part thereof is perforated for
passage of air and diametrically opposite thereto in the drum is a shaft to carry off
the hulls and dust
Another small steve or agregate of perforations is arranged in the drum near to
the lower edge of the mass of grain and the grain inlet is arranged near to the
higher edge of the mass The grain inlet is closed by a slide so that the height of the
inlet above the lowest part of the drum may be adjusted according to the depth of
grain desired in the drum
In the improved machine there are preferably two such drums one above the
other The grain falls in a small stream from the upper into the lower drum, the
grain outlet in the lower drum corresponds in position to the grain inlet in the upper
drum
The drums are mounted in a suitable frame and are each preferably provided
with one removable end
L
1 1
1000

page_text: COMPLETE SPECIFICATION
'
Improvements in Machinery for Decorticating and Cleaning Grain
I HERBERT JOHN HADDAN of the film of Herbert & Co, Patent Agents of
18 Buckingham Street, Strand WC London in the County of Middlesex, Civil
Engineer do hereby declare the nature of this invention, a communication to me from
abroad by Anton Wimmer of Sche lbs in the Empire of Austria-Hungary Engineer
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 machinery for decorticating and cleaning grain in which
the grain is contained in perforated stationary cylinder or cylinders and subjected to
the action of rotary rasps or working devices
Tho action of the rasps which are preferably discs of rough material, supported on
rotary shaft prevents the grain from lying level in the drum and carries it towards
the direction of rotation That portion of the drum on which the grain lies or part
thereof is perforated for passage of air and diametrically opposite thereto in the drum
1s a shaft to carry off the hulls and dust
Another small sieve or aggregate of perforations is arranged in the drain near to
the lower edge of the mass of grain, and the grain inlet is arranged neir to the
higher edge of the mass
The grain inlet is closed by a slide so that the height of the inlet above the
lowest part of the drum may be adjusted according to the depth of grain desired in
the drum
In the improved machine there are preferably two such drums one above the
other The grain falls in a small stream from the upper into the lower drum, the
grain outlet in the lower drum corresponds in position to the grain inlet in the upper
drum
The drums are mounted in a suitable frame and are each preferably provided with
one removable end
Reference being made to the accompanying drawings
Fig 1 is a vertical section, Fig 2 a vertical cross section of the machine, Figs 3 a
and 3b are respective end elevations of the machine on a smaller scale Fig 4 shows
the grain inlet slide Fig 5 is a cross section of the grain inlet
Two standards a and a which are connected by three cross bars b b¹ b¹¹ have
cast or otherwise fixed on their inner faces suitable projections to receive the drums c
and c¹ On the upper half of the outer side of the standard a is bolted or cast the
bracket d to receive the shaft e resting upon the same in two bearings and, said
shaft carrying the rough discs or plates as shown On the outside of the standard a¹
rs the sanie arrangement at d' on the lower half of the standard The discs are the
working parts of the machine

page_text: A cucular opening g¹ is arr inged at the upper half of the
and a similar opening
at the lower half of the standard a
by covers which are either bolted down or hinged as doors
the changing of the plates without dismantling the machine
backwall of the standard a¹
These openings are closed
These openings allow of
The separation of the hulls, dust etc, from the rough plates and the cooling of the
same is done in the following manner On the upper side of the drums, along the
whole length are air shafts h h¹ terminating in dust collectors At the lower side of
each drum at and ¹¹ respectively is a large sieve at k k and k¹ k¹ a small sieve
through which sieves the air penetratos from without in order to traverse the drums
before being drawn off at h and h¹ The principal sieves and ¹¹ are arranged
laterally of the vertical plane of the drums in order to cause the air draught to
traverse the whole of the grain to be cleaned as said grain through the turning of
the plates does not lie level but is deposited towards the direction of the turning as
indicated in the drawing
The object of the second sieves kk and k¹ k¹ is to produce a minor air draught at
the point where the revolving discs enter the grain in order to prevent doposit and
collection of dust at this point This sieve however must be only a few centimetres
in width as otherwise the air draught would be too strong and the cleaning of the
grain be prevented
It is necessary for the proper removal of the husks etc that the grain be pressed by
a certain pressure against the faces of the revolving plates This is done by heaping
the grain in the drum to a certain height (generally about 18 centimeties) This
height however depends upon the nature of the grun to be cleaned In order to
retain as far as possible a constant height of deposit in the drum the feed device r m
is arranged in the middle of the side of the upper drum The grain ertering the
drum runs in pretty equal height towards both ends of the drum In front of the
inlet opening is the slide p 9 with a centre opening n the same being arranged to slide
between guides on the drum c This sliding inlet differs from those heretofore known
in that the area of the inlet opening remains always the same with the present
arrangement and that only the height of this opening alters, whilst with the ordinary
slides the area of the inlet opening only is altered By raising or lowering the
inlet opening the height of deposit in the drum is regulated in the required
manner
The feed chute can, as shown in the drawing, be screwed to the drum and the
movable slide Pq with slot n can be arranged between the chute and drum
In the lower drum the height of deposit is regulated in a similar manner to other
hulling machines by slide exit st on which is arranged the trap z for the purpose of
stopping the entering wind, which would prevent the exit of the grain
The slide-exit at is arranged exactly like the slide-inlet so as to be an adjustable
outlet as described above The outlet pipes 11 controlled by sliding plates allow of
the filling of the grain from the upper drum to the lower one
In case the grun should clog on the bottom of either drum, and in order also to
load the grain more to the faces of the rough plates, there may be added sieves o along
the bottom of each drum formed for instance of inverted ✓ shape in cross section or
of like shape, three such being shown as an example in Fig 1 in the upper drum,
such sieves would taper gradually at the ends' to run without break into the sides of
the drum Or in place of these sieves there may be arranged between each two rough
plates a stirring disc or like device as p, Fig 1, to keep the grain in movement on
the bottom of the drum by revolving with the shaft
Having now particularly described and ascertained the nature of the said inven-
mon and in what manner the same is to be performed, I declare that what
I claim is
-
In grain cleaning and decorticating machines having a horizontal stationary
cylinder, and revolving working devices therein
1 The construction of adjustable grain inlet, being a movable plate with opening w,
substantially as and for the purpose set forth
0

page_text: 2 The arrangement of the sieve 22 and of the air shaft h relatively thereto as
and for the purpose set forth
3 The combination with the sieve of the sieve k k, both arranged as and for
the purpose set forth
4 The combination of two drums c and c' the upper drum having an adjustable
inlet arranged as set forth and the lower drum having a corresponding adjustable
ontlet, said drums communicating and relatively arranged as set forth
5 The construction of machine comprising the standards a a', drums c c with
removable ends 9 91 and shafts e el carrying series of parallel rough discs and sieves o
or their equivalents, stirring discs p between said rough discs, substantially as set
forth