Seed-Cotton-Hull Extractor. Page: 3 of 4
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UNITED STATESPATENT OFFICE.
LOUIS K. STEPHENS, OF DALLAS, TEXAS.
SEED-COTTON-HULL EXTRACTOR.1,070,994.
Specification of Letters Patent.
Patented Aug. 19,1913.
Application filed December 2, 1912. Serial No..734,529.
To all whom it may concern:
Be it known that I, Louis K. STEPHENS,
a citizen of the United States, residing at
Dallas, in the county of Dallas and State of
5 Texas, have invented certain new and useful
Improvements in Seed-Cotton-Hull Ex-
tractors, of which the following is a speci-
fication.
My invention relates to machines for
10 clearing or extracting hulls from seed cot-
ton; and the object is to provide simple and
inexpensive machines which will be highly
efficient in removing the hulls from seed
cotton and to use drafts of air on the cotton
15 while the hulls are being extracted.
There are two advantages gained by the
use of air drafts and these are the draft
of air will hold the cotton in place for the
hull removing device and the air will re-
20 move the dust and trash from the cotton
and a draft is also for removing the cleaned
cotton from the machine. The cotton is
thus treated twice in the machine by air
drafts or suction drafts.
25 Other objects and advantages will be fully
explained in the following description and
the invention will be more particularly
pointed out in the claims.
Reference is had to the accompanying
30 drawings which form a part of this appli-
cation.
Figure 1 is a plan view of the machine.
Fig. 2 is a vertical section taken substan-
tially on the line x-x of Fig. 1. Fig. 3 is
35 a plan view, showing a variation in the form
of a hulling device. Fig. 4 is a detail view
of the- rotating cotton carrying member, the
screen being omitted and parts of the rim
strips being broken away.
40 Similar characters of reference are used
to indicate the same parts throughout the
several views.
This machine is provided with a frame
composed. of posts 1 and suitable cross-
45 beams 2. A beam 3 is mounted on top of
the frame. A vertical shaft 4 is journaled
in bearings 5 and 6, the former being at-
tached to the beam 3 and the latter being
attached to the beam 7. A screened wheel
50 8 is mounted on the shaft 4 and is inclosed
in a casing 9 which is supported by the
frame above described. The wheel 8 is pro-
vided with wide partitions or spokes 10
which extend practically from the upper
55 side of casing 9 to the bottom 36 of the cas-
ing. Air pockets are formed between thepartitions for the purpose hereinafter ex-
plained. A portion of the casing 9 is cut
away in the top part 11 to expose a portion
of the screen on the wheel 8. A portion of 60
the casing 9 is cut away at 12 to expose a
portion of the screen 13 on the wheel 8.
The object of this exposed portion is to pro-
vide an escape for the cotton which has been
cleared of hulls. The cotton is removed 65
as fast as it reaches this exposed portion 12
by a suction pipe 14. The cotton to be
cleaned is delivered to the exposed portion
11 of the screened wheel 8 by a chute 15.
The wheel 8 is driven by a shaft 4 and a 70
bevel gear wheel 16 rigid therewith and a
bevel gear wheel 17 which is rigid with
shaft 18 which shaft is journaled in bear-
ings 19. The hulls are removed from the
seed cotton by a revolving huller 21. The 75
form shown in Fig. 1 is a spiral conveyer.
This conveyer is driven by the shaft 22
which is journaled in a bearing 24 which is
attached to a beam 2 and a bearing 25 which
is attached to the underside of the beam 3. 80
The shaft 22 may be driven by a drive pulley
wheel 26. A variation in the huller is
shown in Fig. 3. This huller is provided
with teeth 27 projecting radially therefrom
and the teeth are spirally arranged on the 85
drum 28. The shafts 4 and 22 may be
driven by any suitable power.
The cotton is held down on the screen 13
by air pressure. The wheel 8 has air pock-
ets formed therein by the spokes or parti- 90
tions 10 and a suction pipe 29 is attached
to the frame of the machine so that the pock-
ets in the wheel 8 will pass the suction pipe
in rotating. When suction is created in the
pipe 29, the seed cotton will be drawn down 95
against the screen 13 and held there until the
pocket thereunder passes under the huller
21. The huller 21 will extract the hulls as
the cotton passes under the huller. The
cotton will be held down against the screen 100
and the hulls will be driven off at the side
of the machine.
When the cotton on the screen passes un-
der the casing 9 beyond the huller 21, the air
pressure ceases for two causes. The pocket 105
thereunder has passed out of communica-
tion with the suction pipe 29 and the pres-
sure would be stopped by the casing 9. The
cotton lies loose on the screen 13 and as it
passes under the suction pipe 14 the cotton 110
will be removed from the screen and deliv-
ered to some suitable receptacle. A circular
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Stephens, Louis K. Seed-Cotton-Hull Extractor., patent, August 19, 1913; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth853871/m1/3/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.