Cotton-chopper Page: 4 of 5
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662,747
of the plunger 25 is provided with a head that
engages with the under face of the draft-beam
12, as shown in Fig. 2. Thus the draft-beam
12, through the medium of the plunger and
5 springs 25 and 26, serves to keep the forward
guide-wheel in engagement with the ground
and to return it to sdch engagement in the
event it meets with an obstruction and the
obstruction has been passed.
1o A cross-bar 27 is secured to the interme-
diate bar 17, and the said cross-bar is pro-
vided with upright sections 28 at its ends.
These upright sections serve as journals or
bearings for an adjustable driving-shaft A.
15 This adjustable driving-shaft, as shown in
Fig. 5, is usually and preferably made in two
adjustable sections a and a', and usually the
shaft is square, except at points a2, where it
passes through the uprights 28 of the cross-
20 bars 27, which portions a2 are circular, as are
preferably the end portions of the shaft. The
drive-shaft A is made thus adjustable in or-
der that it may be accommodated to machines
of different widths. The two sections a and
25 a' of the shaft are ordinarily coupled and held
together through the medium of a pinion 29,
which pinion is usually a sprocket-pinion, as
illustrated in Fig. 3.
A sprocket-wheel 30 is loosely mounted at
30 each end of the shaft A, and adjacent to each
sprocket-wheel a ratchet-wheel 31 is secured
to the shaft, the sprocket-wheels being pro-
vided with dogs 32, which engage with the
teeth of the ratchet-wheels, as shown in Fig.
35 1, and the teeth of the ratchet-wheels 31 are
so disposed that the dogs 32 will turn the said
ratchet-wheels only when the machine is be-
ing drawn forward.
The spindles 11 of the axle 10 receive sup-
40 porting-wheels A', which are readily remov-
able from said spindles, and at the hub por-
tion of each wheel A' a sprocket-wheel 34 is
secured, which sprocket-wheels are connected
by belts 33 with the sprocket-wheels 30 on
45 the driving-shaft A, as is best shown in Fig.
1. Thus it will be observed that the shaft A
may be driven front the supporting-wheels of
the machine, and motion is communicated
from the shaft A to a shaft 35, journaled at
50 the bottom portion of the frame of the ma-
chine in the side braces 19 19", although other
means of support for the said shaft may be
provided, and this shaft 35 is fitted with a
small sprocket-wheel, made in differentsizes
5K to give greater or less speed to the hoe, over
which sprocket-wheel a belt 33"is passed, the
said belt being likewise passed over the
sprocket-wheel 29 on the drive-shaft A, as
shown in Fig. 1. This driving connection is
6o employed only when the machine is operated
by means of the sprocket-wheel 34 and the
shaft A. The shaft 35 is likewise provided
with an attached bevel-gear 36, and the teeth
of this bevel-gear mesh with the teeth of a
65 lantern - wheel 37, which wheel is loosely
mounted on a shaft 38, which shaft is at a
right angle to the shaft 35. The lantern-wheel 37 is provided at its front end with a
clutch-section 39, having a flange which is
adapted to engage with a like clutch-section 70
40, also having a flange secured to the shaft
38, the flanges completely covering these
sections when locked, and normally the two
clutch-sections 39 and 40 are held in engage-
ment by a spring 37a, mounted upon the 75
shaft 38 and having bearing against the lan
tern - wheel and a suitable collar on the
shaft, as shown in Fig. 4. The shaft 38 is
journaled in the uprights 20, 21, and 22, as
shown in Figs. 1 and 2, and between the Eo
uprights 20 and 21 a crank-arm 39 is formed
in the said shaft, as is also shown in said
figures. The hoe B is mounted at the for-
ward end of the shaft 38, and this hoe con-
sists of a blade which is attached to arms 41, 85
one of which arms is secured to the shaft 38,
while the other arm is attached to the sec-
tion 42 of the shaft 38, carried by the for-
ward upright 22, as is also shown in Figs. 1
and 2, and preferably at each end of the blade 92
of the hoe a wheel 43 is mounted, which
serves to cut trash or other foreign matter
that would be dragged through the row by
the hoe and injure the standing plants. The
wheels 43 are broader than the hoe and cut 95
deeper. The said wheels likewise facilitate
the movement of the hoe along the surface
of the ground. .The hoe is protected at one
side-the side to which it is returned after ac-
tion-by a hood B', usually suspended from 1oo
the intermediate beam 17. It may be here
remarked that both the shafts 38 and 35 are
supported by an additional upright 38 and
that the spring 37a is located between the up-
right 38" and the rear end of the lantern- 105
wheel 37.
A rod 44 is pivotally mounted on the crank-
arm 39a, and this rod extends upward and is
loosely passed through a bracket 45 from the
intermediate beam 17,and a spring 46 is coiled i1i
around the rod 44, having bearing against a
nut at the bottom of the rod and against the
under face of the bracket 45, as shown in Figs.
1 and 2. The bottom of the rod is preferably
threaded; but the nut nay be adjustably re- 115
tained thereon by other means. When the
shaft 38 has been revolved to operate the hoe
B, the crank-arm 39" will rise and the spring
46 will be compressed, and as soon as the hoe
passes the central line the spring 46 will coin- 120
mence to act and will quickly throw the hoe
in direction of the ground and cause it to
strike the same in such manner that any
plants in its path will be quickly and cleanly
removed, the hoe being further carried by the 125
action of the spring 46 to a point within the
hood B'. In the event the spring 46 should
fail to act the two clutch-surfaces 39 and 40
will be brought in such binding engagement
that the shaft 38 will be compelled to turn 130
and bring the hoe from its active position to
the upright position; but while the spring 46
on the regulating-rod 44 continues to act the
clutch-surfaces 39 and 40 will simply pass one21
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Reference the current page of this Patent.
Walker, Millard F. Cotton-chopper, patent, November 27, 1900; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth508857/m1/4/: accessed July 7, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.