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Патент USA US2405796

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Aug. 13, 1946.
H. D.IMAY
'
2,405,796
EARTH WORKING ‘AND CULTIVATIYNG MACHINE
Filed Aug. 23, 1944 ‘
3 Sheets-Sheet l
Inventor I.
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’ Aug. v13,
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H. D. MAY
EARTH WORKIING AND CULTIVA-TING MACHINE
Filed Aug. 2:, 1944 _
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2,405,796
s Sheets-Sheet 2
Aug. 13, 1946.
H. D. MAY
2,405,796 '
EARTH WORKING AND CULTIVATING MACHINE‘
Filed Aug. 23, 1944
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3 Sheets-Sheet 3
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Patented Aug. 13, 1946
I arcane
UNITED STATES PATENT OFFICE
2,405,796
EARTH WORKING AND CULTIVATING
MACHINE
Harmon D. May, J ayton, Tex}
Application August 23, 1944, Serial No. 550,751 '
2 Claims. (Cl. 97-170)
This invention relates to farm machinery in
general, and has reference in particular to du
plex or twin straddle-row structure character- ~
ized by a plurality of systematically arranged
knives and foot-type plows.
In carrying out the principles of the inven
tion, I have adopted an open-type, multiple
beam, horizontal framework, this supported on
longitudinally spaced straddle-row sled-like car
»
2
l and 2v observing same in the direction from
either right to left or left to right.
Figures 5 and 6 are detail sections on the
planes of the lines 5-5 and 6-45, respectively, of
Figure 2.
7
~
Figure 7 is a perspective view of one of the
carriages per se.
,
Reference being had to the drawings by dis
riages, said carriages supporting the framework, 10 tinguishing _ reference numerals, and generally
observing the structure, it will be seen that (see
said framework embodying a plurality of de
pending supports for two distinguishable gangs
of plows, a main gang along the rear trailing edge
of the frame structure, and an intermediate or
Fig. 4 for example) each carriage is denoted ‘by
the numeral 8. The superposed open Work frame
structure is indicated generally at 9. The plows
intervening gang trailing the carriages and rear 15 forming the rear trailing gang are denoted by the
numerals'l? and those forming the intermediate
wardly diverging pulverizing knives mounted on
or central gang are distinguished by the refer
the frontal end portions of said carriages.
Although appearing structurally complicated,
the overall structural assemblage is in reality
comparatively simple in that, generally speaking,
two carriage units support the frame and the
frame directly and indirectly supports the sys
tematically organized rear and intermediate rows
of plows forming the rear and intermediate gangs,
all of the ground working implements being on
the same horizontal plane.
:
ence numerals ll.
As shown in Figure '7, each carriage comprises
a pair of spaced parallel ground-riding runners
52 whose forward ends are beveled, as at I 3, to
readily traversev the surface and to ride over weeds
and rough ground. Spaced inwardly fromv the
frontal ends and rising vertically are uprights Ill
having their upper end portions l5 laterally di
rected and secured together against the spacing
attaching elements l6. Thus, we have arches,
Novelty is predicated upon the horizontal
and these arches are bolted together at I? and .
framework characterized by a plurality of par
suitably secured to the under side of the frame
allel angle‘ irons connected together by trans
verse horizontal bracing members, certain of said 30 structure. The inner or rear ends of .the runners
are directed upwardly to provide additional up
bracing members constituting supports for the
rights [8 braced by an intervening bolt l9. I-lor
plows in the so-called rear trailing gang.
izontal adapter braces 20 are secured to the up
Further novelty is predicated upon the car
rights It and i8 and have‘their rear end por
riage units themselves, each characterized by
runners with appropriately braced means for 35 tions diverging and?aring outwardly, as at 25..
The runners l2 serve to support a pairof com
attaching same beneath the main frame struc
ture, vand each including rearwardly ?aring brace
arms serving at their rear ends as anchors or
supports for the smaller plows forming the in
termediate or central gang.
Other features and advantages will become
more readily apparent from the following de
scription and the accompanying illustrative
drawings.
.
In the drawings, wherein like numerals are
employed to designate like parts throughout the
same:
Figure 1 is a front elevation of a cultivator and
ground-working machine constructed in accord
panion rearwardly diverging, suitably propor
tioned and shaped knives or cutting blades 22.
These are horizontal and terminate at their rear
vends at the approximate longitudinal center of '
the machine.
The aforementioned plow units
II are mounted cnthe rear diverging end por
tions of the adapter braces 20, as indicated at the
point 21.
. .
.
Considering now the frame structure 9, this
comprises, essentially, three horizontally disposed
angle irons 23, 24 and 25, respectively. All of
these are disposed in the same horizontal plane.
The two angle irons 24 and 23 are of the same
length, and the rear one 25 is longer and has its
ance with the principles of the present invention. 50
end portions extending equal distances beyond
Figure 2 is a top plan View of the same.
the
corresponding ends of the irons 23 and 24.
Figure 3 is a horizontal section taken on the
The frame structure also includes transverse sta
plane of the line 3—3 of Figure 1 looking in the
bilizing and assembling plates 26, these being
direction of the arrows.
Figure 4 is an end elevational view of Figures 55 bolted at their forward ends to the angle iron 23,
as shown to advantage in Figure 2. These plates
2,405,796
e,
have their rear end, portions bifurcated and the
furcations are differentiated by the numerals 21
and 28, respectively.
The short furcations 2'!
connect or bolt to the angle iron 24. The longer
furcations 28 bolt to the intermediate portion
of the rear or trailing angle iron 25. I next call
attention to the rods 29 and 30-30 (see Fig. 2),
the rod 29 extending transversely across the cen
tral part of the frame and being bolted thereto,
the rods 30 being at the ends of the angle irons
23, 24 and 25, and secured in any suitable manner,
4
the series of three rods 29 and 30, is another phase
of the invention worthy of consideration.
A careful consideration of the foregoing de
scription in conjunction with the invention as il
lustrated in the drawings will enable the reader
to obtain a clear understanding and impression
of the alleged features of merit and novelty suffi
cient to clarify the construction of the invention
as hereinafter claimed.
Minor changes in shape, size,- materials and re
‘ arrangement of parts may be resorted to in actual
practice so long as no departure is made from
the rear end portions 3| of said rods being di- ‘ " the invention as claimed.
rected laterally outward and bolted to the ex
treme outer ends of the angle iron 25.
The plow feet 32‘ (of which there are three)
form the so-called rear trailing gang, They are
detachably bolted to the lower ends of 'the'rela-'
tively tall shanks 33, these being secured by, ap
I claim:
»l. In a ground-working and cultivating ma
chine of the class described, a carriage for a frame
» structure, said carriage comprising a pair of hori
< ~ zontal, spaced, parallel, ground-engaging run
ners, an arch vertically arranged and formed in
propriate clamps 34 to the rear extending ends of
tegral with the forward end of said runners, in
20
the aforementioned cross-rods .29 and 30, re
tegral uprights at the rear ends of said runners,
spectively. These plow feet are V-shaped in con
?guration.
"
‘
vertically elevated, horizontally disposed adapter
arms secured at their outer, forward ends to por
The smaller plow feet, in the intermediate gang,
tions of the arch and at their rear, intermediate
are denoted by the numerals 35 and these, again,
are V-shaped in form and detachably bolted to 25 portions to the upper ends of said uprights, the
rear ends of said adapter arms diverging rear
the shorter shanks 36, the latter being clamped
wardly and outwardly beyond the lines of draft ‘
adjustably, as at 31, to the rear ?aring end por
of the uprights, a pair of blades, these being dis
tions 2! of the aforementioned adapter braces 20.
posed in diverging relation on opposite sides of
It will be noted that the plow units [0 are lon
gitudinally spaced along the reartrailing edge of 30 the carriage and having connection with the
the frame, the two end ones being disposed out
frontal portions of said runners, and a pair of
wardly ‘of the endmost knives 22, and the central
plow feet having vertical hanger rods, said hanger
onebeing disposed in a position between the re
rods being adjustably attached to the rear di
spective pairs of knives 22, as brought out in Fig
verging ends of said adapter arms.
35
ure 2. On the other hand, the smaller plows 35
2. In a ground-working and cultivating ma
are disposed in the spaces between the main plows
chine of the class described, a carriage for a frame
32, being somewhat staggered in relation there
structure, said carriage comprising a pair of hori
to, and also located in zones or areas occurring
within the con?ning ranges of the rear end por
zontal, ‘spaced, parallel, ground-engaging run
ners, an arch vertically arranged and formed in
tions of the respective pairs of cutting blades 22. 40 tegral with the forward end of said runners, in
The plows ID are ina row across the rear of the
tegral uprights at the rear ends of said runners,
machine and the plows ,II in an aligned row with
each other and at points between the free ends
of the blades 22 and the main plows ID.
vertically elevated, horizontally disposed adapter‘
arms secured at their outer, forward ends to por
tions of the arch and at their rear, intermediate
45
The numerals V38 designate suitable brackets
portions to the upper ends of said uprights, the
attached to thefrontal portion of the frame, di
rear ends of said adapter arms diverging rear
rectly to the angle irons 23, to permit attachment
wardly and outwardly beyond the lines of draft
of the uprights, a pair of blades, these being dis
posed in diverging relation on opposite sides of
and powering vehicle.
Novelty is predicated upon the straddle-row 50 the carriage and having connection with the
carriage unit 8, as shown in Figure 'l, with and
frontal portions of said runners, and a pair of
without the attached knives 22 and complemental
plow feet having vertical hanger rods, said hanger
plow units 1!. Further, novelty is thought to re
rods being adjustably attached to the‘ rear di
side in these carriages carrying the horizontal , verging ends of said adapter arms, said plow feet
55
diverging-working blades or knives 22 and the
being in a horizontal plane with said blades and
plow units rearwardly thereof but within prede
the lower ground-engaging surfaces of the run
termined limits of the terminal ends of said
ners, and said plow feet being located to travel in
blades. Added to this, novelty is presumed to re- ‘
lines of draft parallel to but between the lines
side in the carriages carrying the diverging
traversed by the runners and rear end portions
knives, the plow units, l I and the frame structure 60 of said blades, whereby said rear end portions are
carrying the rear trailing plow units I 0. ‘Further
disposed in lines completely outwardly of the
more, and as previously emphasized, the frame outermost positions of said plow feet.
of the entire structure to a tractor or other lead
structure, characterized by the angle irons 23,
24 and 25, the braces or stabilizing plates 26 and
'
HARMON D. MAY.
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