Apparatus for the Transmission of Grain and Granular Material by Means of Atmospheric Pressure and Suction.
Year: 1896

page_text: Date of Application, 23rd Oct., 1896-Accepted, 23rd Jan., 1897
COMPLETE SPECIFICATION.
Apparatus for the Transmission of Grain and Granular Material by
Means of Atmospheric Pressure and Suction.
I OSCAR BOTHNER of Muhlgasse 12, Leipzig, Germany, Engineer 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:
The invention displayed in the drawing consists of an apparatus and the process
rendered possible by means of same whereby grain and similar stuffs may by the
simultaneous employment of pressure and suction be moved a considerable distance
in a perpendicular, slanting or horizonta! direction.
The mechanism adopted for attaining this object is specially shaped with respect
to the adjustinent and action of the chief parts as will be shown by the following
description with the aid of the drawings.
Figure 1. general elevation
Figure 2. section of feeder.
From a receiver A the material to be moved reaches a trap B and continually
presses on the roller C at the aperture D. Should in the course of the rotation by a.
pulley or other means of the roller C a groove E come opposite the aperture D the
grain enters into E fills it up and continues lying in it until E comes to the aperture F
in the pipe (box etc.) As soon as E has reached this position the grain falls
into G, and is then conveyed to its destination in the direction of the arrow by the
forced current of air from the blower H, the material is carried on by the blast till
by further propulsion it passes by the pipe I within reach of a receiver J.
In order to effect a complete emptying of E a supplementary pipe K is fitted
which allows the confined air to escape from E while passing its mouth and so.
permit of the grooves E becoming filled with grain from the mouth of the
shoot at D.
Further there are fitted in C, sharp edges L to the ends of the grooves which
prevent separate grains from getting fixed and crushed between the wall M and
the roller C. The disc C is ground airtight into the wall M.
Any compressed air collected in E after the emptying of the latter leaves
by the conductor I so that when E arrives at D it can be filled again without
hinderance.
The dome or upper part of the receiver J is in connection by a pipe with a suction
or exhaust apparatus N.
The action of this current of suction air is here especially referred to as it is
produced by a suitable suction mechanism N and reaches a receiver J where it
comes into effect from which receiver it not only transmits its action to the
conducting pipes imparting greater speed to the material already put in motion by
the air pressure, but at the same time removes the dust etc. from the grain and
conveys it to a collector or into the open air.
The grain or whatever other material has to be moved falls by its own weight
into the receiver J from which the air has been partly exhausted by the suction
arrangement N in order to be conveyed thence, cleansed to a collector by means
of an outlet channel P in which an adjusting arrangement is placed.
The apparatus therefore not only effects the conveyance of material along a

page_text: system of conduct pipes by means of the action of air pressure and suction but
besides the considerably enhanced rapidity of movement a simultaneous cleansing
of the material is effected.
The apparatus can be used for the transmission of every variety of material and
can be specially recommended for discharging ships etc. where large quantities have
to be dealt with.
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 :-
1. An apparatus for the purpose of transmitting and cleansing grain and similar
material by the simultaneous employment of atmospheric pressure and suction
through a system of conducting pipes, consisting in a current of forced air being
applied at one end of the system of pipes in front of the opening for the material,
the conducting pipe I discharging into a receiver J the air in which receiver is
kept partly exhausted by a suction current whereby this suction current leading
from the receiver J carries away the lighter particles of the material in motion
while the cleansed material falls into the bottom part of the receiver whence it is
conveyed outside as is essentially described and illustrated.
2. For grain transmitting appliances by means of compressed air. A shut off,
airtight receiving roller C with several grooves E each of which is airtight and
separated from the other, receives the grain at point D and pours it by way of F
into the pipe G which is filled with compressed air whereby by means of the bevel
pipe K and the air current itself a suction action is created for the purpose of a
forcible rapid emptying of the grooves E and the material is transmitted by the air
current to its destination.
Dated this 23rd day of October 1896.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said Oscar Bothner.