Year: 1886

page_text: I, FRANÇOIS BRANDSTAEDTER of Louvain, in the Kingdom of Belgium 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 :-
My invention relates to apparatus for drying grain after the same has been washed
and comprises the improvements hereinafter described.
In the accompanying drawing
Figure 1 is a sectional elevation of my improved apparatus.
Figure 2 is a vertical central section of the same.
Figure 3 is a horizontal section, and
Figure 4 is a plan.
The said apparatus consists of a vertical drum having double walls the inner one S
of which is of wire gauze or perforated plate.
In this drum is located a central shaft V carrying uprights o, o supporting
sections R of a helix and designed to rotate rapidly, the said uprights being united
to the shaft by radial connections L carried by a circular support keyed upon the
said shaft.
The grain to be dried is introduced through the bottom of the drum at y, and then
carried by the helical sections which form as it were, a complete helix during the
rotation of the shaft to the upper part of the drum which is provided with an
opening E through which the grain is discharged, as shown in Figure I. The
apparatus is also provided with a tube A for the discharge of the water which the
grain has carried with it.
B is the bearer or base of the apparatus, and C the step bearing in which the journal
of the central shaft V is placed.
The grain passes from the washer through the tube W, and enters the drying
apparatus through the opening y and the aperture U in the perforated plate S. It
is then raised by the helical sections R to the upper part of the apparatus and
leaves at E.
The water which the grain carries with it flows to the lower part of the apparatus
either along or through the perforated wall S, and escapes through the tube A.

page_text: The central shaft V turns at its upper extremity in a bearing I, and is actuated by
a pulley H connected with the engine. A bracket G through which the shaft passes
is placed upon the apparatus and is carried upon a plate F constituting the cover.
The external casing of the apparatus is movable and divided into several sections
M, M, N arranged telescopically one within another as shown in Figure II the lower
-section N being fixed. This casing is capable of being extended over the entire
length of the apparatus as shown in Figure I. This arrangement enables easy access
to the apparatus, as when the external casing is once lowered, it is only necessary to
remove a segmentFigure III of the perforated plate which is simply secured upon
ordinary bars a a a a of angle iron.
The uprights
o o are united to the central shaft by crowns L, L, L (figures I
and III) placed at suitable distances from one another between the lower and upper
parts of the apparatus. As illustrated there are ten of these uprights this number
however can vary. Every alternate upright is provided with a helical section R
adapted thereto in any suitable manner. The rapid rotation of the shaft is sufficient
to complete as it were the helix, the uprights not provided with helical sections
forming a fan.
The lower part of the apparatus is provided with a bottom J Figure II having a
central opening for the shaft V as well as for the passage of air. To prevent water
from the grain from escaping through this opening, it is provided with a cover J¹
having a central opening exclusively for the passage of the shaft, and placed below
the lowermost crown L.
Wire gauze P is placed around the crowns and thus prevents the passage to the.
grain which might otherwise fall to the bottom of the apparatus.
A slide (figure 1) is placed above the admission passage y to prolong the said
passage through the section N of the casing when the latter is extended, an opening
for the slide being formed in the said section.
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 improved grain drying apparatus constructed substantially as described
with reference to the accompanying drawing.
Second. The employment in the said drying apparatus of uprights alternately
provided with sections of a helix arranged around a central shaft, to which rapid
rotary motion is imparted for the purpose of drying grain while raising in a drum
of wire gauze or perforated plate, the uprights not provided with helical sections
forming a fan, as specified."
Third. The application to the said apparatus of an external casing formed of several
sections telescoping one within another for the purpose specified.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.