Improvements in Machinery for Decorticating and Cleaning Grain.
Year: 1890

page_text: Date of Application, 18th Sept., 1890..
Complete Specification Left, 18th June, 1891-Accepted, 18th Sept., 1891
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Decorticating and Cleaning Grain.
I, CARL FRANZEL of Domstadtl, Province of Moravia, Empire of Austria-
Hungary, Mill Owner, do hereby declare the nature of this invention to be as
follows:-
:-
This invention relates to improvements in the appliances for decorticating and
cleaning grain, more particularly to improvements on the machine forming the
subject of my Letters Patent No. 6936, A.D. 1889, and has for its purpose to
facilitate the use of such machines and to increase their working capacity.
The improvements essentially consist of a distributing device and a simple
arrangement for regulating the progress of the grain.
The distributing device consists in an annular plate or ring which is screwed or
otherwise secured to the nave of the stone at the inlet face of the machine and
carries a number of slightly bent rings or stirrers serving to seize the arriving
grain and move the same uniformly to the friction surfaces along the whole
periphery of the stone, which purpose cannot be accomplished without this device.
Or a modification of the above distributing appliance may be used where it is
inexpedient or undesired to secure the ring carrying the stirrers direct to the boss
or nave of the stone. In this case a sleeve is wedged onto the main shaft of the
machine on which is secured by screwing or in any other suitable manner a plate
relieved by cuts or apertures and carrying likewise stirrers as above. This plate
serves as a substitute for the ring above referred to.
By the described arrangement any stowing of larger quantities of grain within
the lower space of the machine is obviated and a powerful airing is attained which
greatly accelerates the movement of the grain in the machine, thereby considerably
facilitating the working of the latter. Moreover any lumps of ground mingled
with the grain are crushed and rapidly leave the machine in a powdered state by
aid of the draft produced by the wings.
The device for the adjustment of the grain consists of a horizontally lodged slide
which covers the outlet aperture of the machine and is provided with a diagonal
slot. It is evident that by displacing this slide relatively to the outlet, the discharge
of grain can be accelerated or retarded as the case may be.
In order to facilitate the play of the slide, a flange carefully planed is provided
around the outlet aperture in the front side of the machine.
The slide may be either of a piece and adapted to be operated by toothed gear
or by laterally provided handles, or, to facilitate its handling, it may be made in
several parts.
Also the diagonal slot may be replaced by a graduated diagonally arranged
series of slots each of which is equal in breadth to that of the outlet aperture of the
machine.
Dated this 18th dow of Santamber 1800.
HUELSER & Co.,
Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Machinery for Decorticating and Cleaning Grain.
I CARL FRANZEL of Domstadtl in Austria, Mill Owner, 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 that class of grain decorticating and cleaning machines
го. 077

page_text: in which the grain is treated between the surfaces of a revolving stone moving in
one direction and a perforated metal plate or wire gauze moving in the other
direction or in which the one or other of these parts remains stationary while the
remaining part revolves, and the improvements relate firstly to the manner of
delivering the grain between the surfaces of the stone and of the cylindrical mantle
of perforated plate or gauze above mentioned and at the same time providing for
an air current within the machine or through the same, and secondly to the means
for controlling the outflow of the grain after treatment so that the grain shall be
maintained at the most suitable level in the machine previous to its discharge.
The accompanying drawing shows the grain decorticating and cleaning machine
referred to and fitted with the improvements above referred to.
.
Fig. 1 illustrates in two views the device for spreading the grain in front elevation
and the same in section within the machine the main parts of which are also shown
in section.
Fig. 2 shows a modified construction of this spreading or distributing device in
front elevation and in section.
Figs. 3 and 4 illustrate means for controlling the flow of grain from the machine
so that it may be made to flow out at the level desired within extreme limits likely
to be required.
Fig. 5 shows a covering device intended to prevent inflow or outflow of air in
any considerable quantity at the grain outflow opening, this view being on a larger
scale.
Figs. 6. 7 and 8 illustrate other means for controlling the level of the flow of
grain from the machine.
In the machine to which the improvements are applied is the main shaft
carrying the stone cylinder c on or by the discs or holders e so that the cylinder
may be revolved through intervention of the said shaft. d is the perforated
enclosing mantle. f is the space between the stone and the mantle in which the
grain is treated.
To evenly distribute the grain into this cylindrical space, there is fixed upon one
of the bearers e, the ring g having a suitable number of equidistant and slightly
curved outwardly radiating blades has shown in Figs. 1 and 2. These blades
extend to the edge of the stone c and distribute the grain falling into the hopper a
evenly towards and over the edge of the stone into the space f. Where the stone
is solid or supported otherwise than as in Fig. 1, the ring g may be carried by a plate
or disc m pierced at / for lightness and connected with the boss k, keyed on the
shaft b, as shown in Fig. 2.
To provide means for regulating the level of the outflow of the grain treated; a
olate B preferably of sector shape is pivoted on an eye bolt D on the case of the
machine to cover the grain outlet therein. In the sector is the hole G preferably
a circular one through which the grain can escape. If the sector be moved on its
pivot, for instance by pinion F and rack E the hole G moves over the larger hole
in the casing of the machine and may thus be set at a higher or lower level as
desired to serve as an outlet. As the grain flowing out of the outlet will not com-
pletely fill the outlet opening but will leave a space at the upper part through
which air etc. could pass, this may be remedied as in Fig. 4 by filling up the upper
part of the outflow opening in the casing of the machine with a board M cut in a
series of steps or grades as shown so that the upper part of the opening G is closed
by one or other of these steps in the various positions in which the sector B is
intended to be adjusted. The upper part of the hole G may also be closed by the
semicircular shield H pivoted at its centre K on a cross bar and controlled by
a rod L so that its edge may also be set in a horizontal line whatever be the
position given to the sector.
The regulation of the height of the actual outflow opening may also be performed
by the means shown in Figs. 6 to 8, that is to say by the use of a rectangular slide
or slides having an outflow slot cut along a diagonal or on an inclined line thereon.
N is such a slide moving in guides s on the frame or casing R of the machine

page_text: through the means of handles T or by rack and pinion gear U. The inclined
slot Ŏ therein serves as the regulating outlet over the main outlet hole Q in the
casing R. In place of an inclined slot O a series of horizontal slots P each one at
a slightly higher level than the preceding one, may be made in the slide N.
For machines of the largest sizes it may be found convenient for the working of
the outlet regulator, if the slide aforesaid be made in two parts as in Fig. 8 the
upper part W with handle T and rack and pinion Z and the lower part X with
handle T and rack and pinion Y. These slides are intended to be moved in relation
to one another so that the opening Q is only uncovered in one place at any one
time.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
In machinery for decorticating and cleaning grain in which the latter is treated
between cylindrical surfaces as set forth.
1) The device for distributing the grain evenly to the cylindrical place of treat-
ment consisting in. the ring or equivalent 9 having the equidistant curved radiating
arms as herein described.
2) The means for controlling the level of the grain outflow consisting of the
sector cover plate B with opening G in combination with the step shield M or
rotary shield H substantially as set forth.
3) The slide N with inclined slo: O combined with the machine in the manner
and for the purpose set forth.
4) The slide N with series of horizontal slots P at different levels combined with
the machine in the manner and for the purpose set forth.
5) The divided slide W X with separately movable parts with inclined or step
slots as and for the purpose set forth.
Dated this 18th day of June 1891.
HERBERT & Co.,
18, Buckingham Street, Strand, W.C., Agents to Applicant.