Cultivator. Page: 4 of 5
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1,241,382
wardly projecting arms 16 of the said rock
shaft. Each standard 11 which is prefer-
ably curved as shown is provided at the
lower portion with a spring trip 17 which
5 may be of any desired construction and
which is shown in the drawings as being in
the form of a toggle lever composed of arms
held in a line by a spring. The attaching
plate 13 which is secured to the upwardly
10 extending arm 14 by upper and lower bolts
is adjustably connected therewith by a wedge
18 provided at opposite sides with flanges 19
to embrace the upwardly extending arm 14
and it has a slot 20 receiving the upper
15 bolt 21 of the wedge 18. By adjusting the
wedge 1.8 the standard and the foot or other
cultivating device carried thereby may be
set at an angle or inclination to arrange it
in proper position for operating on the ridge
20 of listed soil.
The arm 16 of each set of plows is pref-
erably composed of an approximately V-
shaped rear portion 22 and a substantially
straight front portion 23 connected with the
25 rear portion by a suitable clutch 24 and ad-
justably mounted on the transverse rock
shaft and adapted to be swung upwardly
and downwardly by an-operating or adjust-
ing lever 25 connected with the front- section
aS 23 and equipped with a latch 26 for engag-
ing a toothed segment 27 for securing the
rearwardly extending arm 16 in its. pivotal
adjustment.
The rock shaft is adapted to be rotated to
35 adjust the two sets of plows simultaneously
and either set of plows is adapted to be ad-
justed independently of the other set and
the clutches permit of an angular adjust-
ment of the two sets to enable the bars or
48 transverse beams which carry the plows to
be arranged in alinement or to be disposed
at an angle to each other to cultivate the
- soil in the desired manner. The clutch 24
is preferably composed of two disks or mem-
45 bers 28 and 29 and a connecting bolt 30 con-
stituting a pivot and adapted also to retain
the upper and lower sections of. the clutch
or clamp -in their relative adjustment. The
plates or sections of the clamp are provided
5e. at their engaging faces with serrations 31
which interfit or interlock and coact with
the bolt for firmly retaining the V-shaped
rear section or portion of the arm in proper
position with relation to the front portion
55 or stem 22.
The front stem or section 23 extends en-
tirely through the sleeve .33 carried by the
rock shaft 6 and forming a bearing or sup-
port for the stem or front section 23. The
60 stem or front section 23 is provided at its
front end with a flange or collar 34 to pre-
vent the stem or front section from slipping
rearwardly in its bearing and the sleeve is
equipped at.its rear portion with a set.screw
65 35 which clamps the stem or front section 23in its rotary adjustment. By loosening the
set screw the plows can be moved and ar-
ranged at any angle desired and the outside
plow can be thrown clear on top of the ridge
while the inside plow is still operating in 70
the listed furrow. The wedge which is
shown in an upwardly tapering position
may be arranged with its larger end either
at the top or bottom. The wedge is adapted
to enable the plows to be arranged in a level 7
position while the beams are at an angle
and the outside plows may operate on top
of the ridge and the inside plows in the
furrow by such adjustment. This will pre-
vent the plows from throwing down all the 80
ridge at one plowing and at the same time
throw plenty of soil to the plants. The
knives and the two inside plows may be
most advantageously used for the first plow-
ing as the knives will clear the middle and 85
the two plows will clean the row.
It will be seen that the cultivator is sim-
ple, practical and efficient and that the plow
beams which may be of any desired number
are capable of independent and simuilta- 90
neous adjustment and also of adjustment to
arrange the soil engaging -devices in the
proper position with relation to the soil
when cultivating listed ground. Also the
upwardly extending arms 1, are provided 95
with clamps 32 for engaging the transverse
bars or beams to permit the plow beams to
be adjusted toward and from each other on
the said transverse bars or beams for ar-
ranging them the desired distance apart.: 10
What is claimed is:
1. A cultivator of the class described in-
cluding a frame having spaced runners hav-
ing bearings, a transverse rock shaft jour-
naled in the bearings and having a crank ex- 105
tending across the space between the 'runners,
said rock shaft extending from opposite
sides thereof, arms located at opposite. sides
of the frame and mounted on the rock shaft
for independent vertical, pivotal adjust- 110
ment, transverse bars or beams carried by
the said arms, standards secured to the
transverse bars or beams and provided with
soil engaging devices and means for .par-
tially rotating the rock shaft to adjust the 115
arms simultaneously and for adjusting the
arms independently of each other on the
rock shaft.
2. A cultivator of the class described in-
cluding a frame having spaced runners 120
having bearings, a transverse rock shaft
journaled in the bearings and havingg a
crank extending across 'the space between
the runners, said rock shaft extending from
opposite sides thereof, arms located at op- 125
posite sides of the frame. and mounted on
the rock shaft for vertical, pivotal adjust-
ment, transverse bars or beams carried by
the said arms, standards secured. to the
transverse bars or beams.and provided with 130.2
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Reference the current page of this Patent.
Howard, Quinton S. Cultivator., patent, September 25, 1917; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth853790/m1/4/?q=%22%22~1: accessed July 5, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.