Process for reducing Grain and separating the Meal in the Wet Way.
Year: 1896

page_text: Date of Application, 8th Oct., 1896
Complete Specification Left, 2nd July, 1897-Accepted, 14th Aug., 1897
PROVISIONAL SPECIFICATION.
Process for reducing Grain and separating the Meal in the Wet Way.
I, ANTON SEIDL, Royal Bavarian Court Baker and Councillor of Commerce, of
No. 28 Mars Strasse, Munich, Bavaria, do hereby declare the nature of this invention
to be as follows:-
This invention relates to a process for separating the husks or cuticles and the meal
of grain from each other as follows:-
Cleansed grain, either whole or crushed, and with or without previous separation of
flour particles or bran, are soaked in water until the meal is no longer firmly connected
to the husks or cuticles but only adhere or stick thereto.
This mass is subjected to a moderate mechanical treatment for entirely separating
the meal from the husks or cuticles; it is then forced through a sieve or bolting cloth,
whereby the meal will be made to pass through, leaving the husks behind.
These husks can be again treated with water for more completely separating the
meal that may still adhere thereto.
The process is mainly intended for the treatment of rye, but it can also be applied
to other grain, in particular to mixtures thereof.
It is bowerer not applicable to pure wheat, as the gluten adheres to the husks, so
that mainly starch would be separated.
On the other hand it can be successfully applied to rye with an admixture of wheat
bran.
A separation of the meal into its constituents, that is to say, a separation of starch
is not intended by this process. By means of the process a perfect product is obtained
which, with the addition of flour gives a very good dough and excellent bread.
The meal or flour particles which, after the soaking and working, only adhere
loosely to the husks or cuticles, are so easily separated that the power required for the
process is in no proportion to the expenditure of power required by a grinding mill.
At the same time the separation of the meal is much more complete, and a product
perfectly free from husks or cuticles is obtained, as these are not reduced to fragments.
These large particles of husks do not pass through the sieves or bolting cloths, as with
the ordinary grinding process, where they are ground small with the meal, and where,
in particular with the darker sorts, they can only be separated in a very imperfect
manner.
Furthermore, the separation of the meal is a perfect one for the reason that the
process can be extended by continually adding water to the residue.
There is nothing to prevent the water that has been used for the process from being
used over again, even in the first stages of washing.
The entire process is also of considerable importance because the separation of the
meal can be effected to such an extent that only about 7 p.c. of waste (which is
constituted by the husks) results, all production of dust or stive being avoided,
whereas with the ordinary grinding process there is generally a loss of from 20 to 25 p.c.
of the edible constituents.
In addition to these advantages and to that of the small expenditure of power
required the farther advantage arises that the necessary plant is of a very simple

page_text: nature, and the process can consequently be carried out by comparatively unskilled
operatives.
It is of course understood that, before undergoing the said process, the grain must
be subjected to the most perfect cleansing and washing operations.
Dated this 8th day of October 1896.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECI
TION.
Process for reducing Grain and separating the Meal in the Wet Way.
I, ANTON SEIDL, Royal Bavarian Court Baker and Councillor of Commerce, of
28 Mars Strasse, Munich, Bavaria, 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:-
Cleansed grain, either whole or previously crushed or previously crushed or broken
and either with or without previous separation of flour particles and bran, is soaked
in water until the meal is no longer firmly attached to the husks, but only adheres
slightly thereto.
The grain so prepared is then subject to a moderate mechanical working in order
to entirely detach the meal particles from the husks: the mass is then pressed
through a filter cloth or screen, whereby the meal constituents are forced through
while the husks remain behind.
These husks can be again treated with water for perfectly separating the meal
constituents.
The process can be applied to all kinds of grain, as also to mixtures thereof.
A separation of the meal into its constituents, such as a separation of starch, is not
intended by this process.
By means of the complete process as above described a very perfect product is
obtained which, with the addition of flour, gives a very good dough and excellent
bread.
The meal particles, which after the soaking and working no longer adhere firmly
to the husks, are so easily separated that the expenditure of power required by the
process is exceedingly small as compared with that required by the grinding
process.
At the same time. the separation of the meal particles is much more effective and
complete, and quite free from husks, as the latter are not reduced. These large
husk particles do not pass through the screens as is the case in the grinding process,
where the husks are reduced, together with the meal, and where, in particular in the
case of the darker kinds of grain, the meal can only be very imperfectly separated.
Furthermore, the separation of the meal is in the present case much more perfect
because the process can be continued to any desired extent by farther additions of
water. In affecting this the water that has already been used for the first separation
can be again passed in contact with the husks.
The complete process is furthermore of considerable importance on account of the
fact that by it the separation of the meal can be effected with a loss of only
7 per cent., which is represented by the husks, all loss by stive or dust being avoided
whereas with the grinding process there is a loss of from 20 to 25 per cent.
In the expenditure of power for this process which as before stated is comparatively
insignificant, the arrangements employed are exceedingly simple, and can therefore
be manipulated by unskilled operators without supervision.

page_text: It is of course understood that the grain before being subjected to the above
separating process, should be subjected to the best cleansing and washing process.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
Process for detaching the meal from the husks of grain and for separating the same
from each other in the wet way, consisting in treating the previously cleansed grain
whether whole or crushed or broken, and whether with or without previous separation of
meal, with water until the grain is completely soaked, after which the meal is detached
from the husks by pressure, concussion or friction, and they are then separated from
each other by pressing with frictional action, through screens or filter cloths,
substantially as described.
ABEL & IMRAY,
Agents for the Applicant.