AN IMPROVED METHOD OR PROCESS OF AND APPARATUS FOR PURIFYING GRAIN, SEEDS, AND SIMILAR MATERIALS be as follows:
Year: 1884

page_text: I HERMANN DIETZ, 182, Urbanstrasse, Berlin S. Prussia German Empire, do
hereby declare the nature of said invention for "AN IMPROVED METHOD OR PROCESS
OF AND APPARATUS FOR PURIFYING GRAIN, SEEDS, AND SIMILAR MATERIALS
be as follows:-
"
to
This invention relates to a method or process of, and apparatus for, removing
dust and offal from grain, seeds, and the like.
This process is particularly applicable to machines in which, as the grain is
rubbed by a rotating brush of conical, cylindrical or plane form, upon a perforated
metallic plate or screen, the offal is removed through the perforations of the
metallic friction plate by means of an exhauster.
In apparatus of this kind, as heretofore constructed, the suction chambers which
surround the perforated plate were connected by means of one or several per-
forations with channels leading to the exhauster, the result being an irregular
suction the consequence of which was that only the grain upon the portions of the
friction plate placed opposite the perforations through which passed the offal, were
cleaned.
In order to obviate this defect, I arrange a vertical apparatus provided with
conical brushes and annular, perforated suction pipes in a suction chamber the said
pipes enclosing the perforated friction plates.
These suction pipes ensure a regular suction of the air charged with dust
through all parts of the friction plate and consequently ensure also the regular
operation of the apparatus.
It is necessary to arrange the said pipes at the lower part of the suction
chamber as on that part the dust can be collected most easily. The suction pipes
are in communication with main pipes connected with the exhauster.
The shape of the suction pipes may assume various forms. For instance they
may be plain round perforated metallic pipes or have the form of a quadrangular
semicircular or triangular channel. In this case the channel is formed of a
perforated metal casing fixed by flanges upon the casing of the apparatus. If
employing a pipe, the same may be quadrangular, semi circular or triangular in
cross section.

page_text: Strictly speaking, it is only requisite to provide with perforations the side of the
pipe or channel which is turned towards the friction plate.
This invention is applicable, not only to separators provided with conical
brushes, but also to those provided with brushes of various other shapes, and
particularly to those having cylindrical brushes. In the last case, it is necessary
to arrange in the suction chamber several perforated pipes or channels placed one
upon the other, as the efficiency of the operation of each pipe or channel will only
extend a certain distance between the friction plate and the said pipes.
Several perforated collecting pipes or channels can be arranged in separators
provided with conical or plane friction plates, these pipes or channels being
connected with the exhauster by means of other channels.
The essential feature of my invention consists in the arrangement, in proximity
to the friction plate, of perforated collecting pipes or channels which enable a
regular suction of the dust to be obtained.
By using collecting pipes or channels it is possible, under certain circumstances,
to empty the closed suction chamber.
The above described arrangement is applicable to winnowing machines which
operate by means of an exhauster, and also to separators used for cleaning seeds
and the like.
Dated this 7th day of April 1884
HASELTINE, LAKE & Co.,
For the Applicant.

page_text: I, HERMANN DIETZ, of Nº 182, Urbanstrasse, Berlin, S. Prussia, Germany do
hereby declare the nature of my invention for "AN IMPROVED METHOD OR PROCESS
OF, AND APPARATUS FOR, PURIFYING GRAIN, SEEDS, AND SIMILAR MATERIALS" 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 a method or process, of, and apparatus for, removing
dust and offal from grain, seeds and the like.
This process is particularly applicable to machines in which, as the grain is
rubbed by a rotating brush of conical, cylindrical or plane form, upon a perforated
metallic plate or screen, the offal is removed through the perforations of the metallic
friction plate by means of an exhauster.
In apparatus of this kind as heretofore, constructed, the suction-chambers which
surround the perforated plate were connected, by means of one or several per-
forations, with channels leading to the exhauster, the result being an irregular
suction the consequence of which was that only the grain upon the portions of the
friction-plate placed opposite the perforations through which the offal passed were
cleaned. In order to obviate this defect, I arrange a vertical apparatus provided
with conical brushes and perforated suction-pipes.
In the accompanying drawing
Figure 1 is a vertical section of the said apparatus.
Figures 2, 3 and 4 are views of modifications hereinafter referred to.
A A indicate annular perforated suction-pipes arranged in the suction-chambers B,
and encircling the perforated friction-plates R.
These suction pipes ensure a regular suction of the air charged with dust through
the perforations of the friction-plates R, and consequently ensure also the regular
operation of the apparatus.
It is necessary to arrange the said pipes at the lower parts of the suction-
chambers B, as at these parts the dust can be collected more easily than elsewhere.
The pipes A communicate with the exhauster E through the main pipes D and
branches C.
.
The shape of the suction-pipes A may be varied. As shewn in Figure 1, they
are plain round perforated metallic pipes; they may, however, be quadrangular as
in Figure 2, semicircular as in Figure 3, or triangular as in Figure 4. In either
case the channel is formed of a perforated metal casing fixed by flanges upon the
inner side of the wall M of the apparatus.
If a pipe is employed, the same inay be quadrangular, semicircular or triangular
in cross section, instead of round. Strictly speaking, it is only requisite to provide
with perforations the side of the pipe or channel which is turned towards the
friction-plate, R.
This invention is applicable, not only to separators provided with conical brushes
but also to those provided with brushes of various other shapes and particularly to
those having cylindrical brushes. In the last case, it is necessary to arrange in the
suction-chamber several perforated pipes or channels placed one above the other, as
the efficiency of the operation of each pipe or channel will only extend a certain
distance between the friction-plate and the said pipes. Several perforated collecting
pipes or chanuels can be arranged in separators provided with conical or plane
friction-plates, these pipes or channels being connected with an exhauster by means
of other channels.

page_text: The essential feature of this invention consists in the arrangement, in proximity
to the friction-plate, of perforated collecting pipes or channels which enable a
regular suction of the dust to be obtained.
By using these collecting pipes or channels it is possible, under certain circum-
stances, to empty the closed suction-chamber B. The above described arrangement
is applicable to winnowing machines which operate by means of an exhauster, and
also to separators used for cleaning seeds and the like.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
First. The method of ensuring a regular removal of the dust, offal and husk
from grain, in grain cleaning machines, especially in brush and winnowing machines
operating with exhausters, by arranging perforated collecting pipes or channels in
proximity to the perforated friction-surfaces of the apparatus.
Second. In apparatus for purifying grain, sceds, or the like, particularly in brush
separators and winnowing machines, the arrangement of perforated collecting
channels or pipes A which surround the perforated friction plates, and which are
connected by means of channels with the exhauster, thus ensuring the regular
removal of the air in which dust is diffused.
Dated this 7th day of January 1885.
HASELTINE, LAKE & Co.,
For the Applicant.