Section-Harrow. Page: 4 of 5
[2], 3 p. : ill. ; 23 cm.View a full description of this patent.
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1,137,857
rigidly secured at their front ends to the
composite beam 5, 6. Between the two
brace bars 14, two chains 15 extend con-
vergently rearward, having connection be-
5 tween the tongue, with a rod 16 extending
rearwardly and downwardly. The rear end
of the rod 16 is attached to the center of a
yoke member 17, having its parallel end
portions projecting rearwardly and down-
10 wardly.
Between the rearwardly projecting ends
of the yoke 17, there is engaged the forward
end of a harrow section A, comprising a
pair of lateral members 18, inclined slightly
15 toward each other from back to front and
three equally spaced cross bars 19 parallel
to the composite beam 5, 6, the ends of the
front bar 19 being loosely mounted in the
ends of the yoke 17.
20 - With the harrow section A there is corre-
'lated a lever mechanism for simultaneously
rocking the three cross bars 19, so as to vary
the angle of the teeth 20 relative to the
ground. The rearmost bar 19 of each har-
25 row section has rigid connection with a lever
21. With said lever, there is intermediately
connected the rear extremity of a bar 22.
Said bar extends forwardly above the other
two bars 19, and has pivotal connection with
30 a pair of arms 23 projecting rigidly upward
from said bars 19. Obviously when the
lever 21 is subjected to an angular displace-
ment, the three bars 19 will be rocked, and
the teeth 20 will be deflected at an angle
35 with the vertical equal to the angle of de-
flection of the lever.
In order to hold the lever 21 adjusted in
various positions of angular displacement,
there is correlated with said lever an arcuate
40 rack 24, having the lower end of the lever as
its center of curvature, said rack being
mounted upon a bar 25 connecting the three
bars 19 of the harrow section midway be-
tween the bars 18.
45 At each side of the harrow section A,
there are mounted two other harrow sections
A, all the same' as that which has. been de-
scribed, and each similarly engaged at its
front end between the rearwardly projecting
50 ends of a yoke member 17. The sections A
are equidistantly spaced a distance substan-
tially equal to their own width. Each of the
two outer sections has connection with the
beam 5, 6 by a chain 26 and a rod 27, the
55 chain being attached at its front end to the
beam 5, 6 and the rod secured at its rear
end to the yoke 17, the other two extremities
of the rod and chain being connected.
In Fig. 1, between each two adjacent har-
60 row sectionsA, there is shown in dash lines
a removable harrow section.B, the two utter-
most sections B having connection with the
beam 5, 6, by chains 26- rods 27 and yoke 17,
while the other two sections B are engaged
65 (at their front ends) by yokes 17 which arerespectively swingingly secured to the rear
ends of the frames 11. The removable sec-
tions B are somewhat larger than the per-
manent sections A and have their lateral
bars 18 inclined toward each other from 70
front to back instead of from back to front
as in the sections A. When both the see-.
tions A and B are used they will be flexibly
connected at their front ends by two or
three chain links as indicated at 28. 75
When land is being prepared for planting,
or when the young crop has just made its
appearance the harrows A and B will, be
used conjointly.
Subsequently when it is desired to culti- 80
vate' between the rows of plants, the insert
harrows (shown in dash lines) will be re-
moved, and only those shown in full lines
will be employed, each of the same traveling
between two of the rows of plants. Crusts 85
formed by rain are readily dissipated by
the harrows passing over the sprouting
rows, and early weeds in the rows are elimi-
nated. Later, after each rain it is possible
to make rapid headway in breaking the 90
crust between rows and destroying weeds,
leaving a good mulch. The rapidity.of op-
eration over a given area reduces the loss
of moisture to a minimum.
The above described device is designed .to 95
meet a long sought requirement for the rapid
cultivation of crops in all sections, but it is
more especially adapted for use in localities
where the sparsity of rainfall demands
rapid action to preserve moisture. 100
The invention is presented as including
all such modifications and changes as prop-
erly come within the scope of the following
claims.
What I claim is: 105
1. In a device of the character described,
the combination with a pair .of wheels, an
axle, and a tongue, having the usual rela-
tion, of a cross bar mounted upon the tongue
projecting laterally beyond the wheels, a 110
pair of U-shaped frames, each having its ex-
tremity secured to the said cross bar, and
each extending rearwardly beneath the axle
and having connection therewith, one of the
transporting wheels being mounted between 115
the rearwardly extending portions of each
of said frames, a harrow section pivotally
.connected with the rear end of each frame,
and means establishing a flexible connection
between the harrow sections. 120
2. In a device of the character described,'
the combination with a pair of transporting
wheels, an axle, and a tongue, having the
usual relation, a cross bar rigidly mounted
upon the tongue in front of the axle and 125
projecting laterally at each end beyond the
transporting wheels, a U-shaped frame dis-
posed at each side of the implement, its for-
ward extremity being secured to said cross
bar, and being inclined rearwardlyy at each 1302
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Harlin, Harry W. Section-Harrow., patent, May 4, 1915; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth857779/m1/4/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.