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Патент USA US3053008

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Sept. 11, 1962
3,052,998
C. E. CHILDERS
LAND LEVELLER
Filed Oct. 18, 1960
5 Sheets-Sheet 1 ’
//WF/g.
Claude E. Chi/ders
INVENTOR.
BY
Myra/q ?dawégfm
Sept. 11, 1962
c. E. CHILDERS
3,052,998
LAND LEVELLER
Filed Oct. 18, 1960
5 Sheets-Sheet 4
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Claude E Chi/ders
1N VENTOR.
Sept. 11, 1962
c. E. CHILDERS
3,052,998
LAND LEVELLER
Filed Oct. 18, 1960
5 Sheets-Sheet 5
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Fig.
Claude E Chi/ders
INVENTOR.
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United States Patent 0 " ice
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Patented Sept. 11, 1962
2
1
hence may be pulled by ‘a tractor vehicle to which the
3,052,993
machine frame generally designated by reference numeral
Claude E. Childers, 209 N. Adams, De Witt, Ark.
Filed Get. 18, 1960, Ser. No. 63,416
6 Claims. (Cl. 37-450)
12 is attached by means of a hitch device generally ind1
=cated by reference numeral 14. It will also be observed
that the frame assembly 12 is supported above the ground
in horizontal position ‘by a forward wheel assembly 16
LAND LEVELLER
This invention relates to an earth moving machine
adapted to be hitched to a tractor pulling vehicle for
drawing the machine over the surface of the ground for
FIGURES 2 and 3. It will therefore be observed from
FIGURES l, 2 and 3 that the horizontal position of the
levelling and smoothing the earth.
frame assembly 12 above the ground may be controlled
and a rear wheel assembly 18 as more clearly seen in
‘It is therefore a primary object of this invention to
by simultaneous angular positioning of the forward and
provide a land levelling machine which includes an elon
rear wheel assemblies 16 and 18 with respect to the
gated horizontally disposed frame which is drawn over
frame assembly 12 to which they are pivotally con
the earth which frame is supported by a pair of wheel
nected. It will also be observed that the frame assem
assemblies at an adjustably predetermined position above 15 bly 12 has mounted thereon and extending upwardly
the surface of the ground for movement of the earth
thereabove a truss structure 20 disposed between the for
passing beneath the machine frame ‘by a plurality of
ward and rear ends of the frame assembly 12 so as to
prevent bending of the frame assembly in a vertical plane.
earth inwardly and outwardly with respect to the frame
Further, it will be observed from FIGURES 3 and 11,
sides and thereby ?ll up irregularities of the earth surface 20 that the frame assembly 12 mounts between the sides
earth de?ecting blades which are operative to move the
and smooth the earth down to a desired level.
thereof an earth moving blade arrangement designed to
Another object of this invention is to provide a land—
leveling machine composed of a frame, the level of which
may ‘be accurately adjusted with respect to a pair of frame
move the earth laterally inwardly and outwardly with
justable wheel assemblies which are 50 arranged as to
nected at the rear ends thereof by means of a channel
respect to the frame assembly in order to level, smooth
and remove irregularities of the earth’s surface over which
supporting wheel assemblies by hydraulic mechanism 25 the leveller frame moves, said blade assembly being op
erative to ?nally de?ect remaining earth off to one lateral
mounted on the forward wheel assembly, the rear wheel
side of the frame.
assembly being interconnected with the forward wheel
assembly so as to maintain the frame in horizontal posi
The frame assembly 12 is therefore made up of a
tion at all adjusted levels thereof.
pair of elongated structural channel members 22 and 24
which are disposed parallel to each other. rThe side
An additional object of the invention is to provide a
members 22 and 24 of the frame assembly are intercon
land levelling ‘frame supported by a pair of pivotally ad
connecting member 26 while intermediate the ends of
facilitate both adjustment of the frame level and turning
of the frameby the pulling tractor.
the side frame members 22 and 24 a plurality of tubular
These together with other objects and advantages which 35 connecting members 28, 30, 3'2 and 34 are provided to
maintain the side frame members 22 and 24 in spaced
will ‘become subsequently apparent reside in the details
parallel relation to each other by being secured to up
of construction and operation as more fully hereinafter
standing ears welded or otherwise secured to the side
described and claimed, reference being had to the accom
frame members. It will also be observed that the for
panying drawings forming a part hereof, wherein like
ward ends of the side frame members 22 and 24 have
numerals refer to like parts throughout, and in which:
upwardly angled portions 36 and 38 which are intercon
'FIGURE 1 is a perspective view of the land levelling
. nected by tubular member 40. I'I'he hitch 14 is there
machine made in accordance with this invention.
'
fore pivotally connected at said forward end 36 and 38
FIGURE 2 is a side elevational view of the land leveller
of the frame assembly 12.
illustrated in FIGURE 1.
*It will be observed that the hitch device 14 includes
1FIGURE 3 is a top plan view of the land levelling ma 45
chine illustrated in FIGURE 1.
a hitch frame comprising of a pair of tubular frame
members 42 and 44 the rear ends of which have pivot
FIGURE 4 is a front elevational view of the land
levelling machine.
brackets 46 and 48 connected thereto whereby the hitch
device 14 may be pivotally connected to the forward end
v‘FIGURE 5 is a sectional view taken through a plane
indicated by section line 5-5 of FIGURE 3.
50 portions 36 and 38 of the land levelling frame assem
bly 12. The tubular frame members 42 and 44 therefore
FIGURE 6 is a partial enlarged top plan view of a
form a triangular con?guration by being interconnected
portion of a machine illustrated in FIGURE 3.
by a tubular frame member 50. A hitch bar 52 is con
lFIGURE 7 is a partial sectional View of the land
nected between the frame member 50 and a connecting
.levelling machine illustrating the forward wheel assem
bly in one operative position.
55 portion 54 at the apex of the triangular con?guration of
the hitch device 14. Connecting bracket 56 is therefore
FIGURE 8 is a sectional view similar to FIGURE 7
mounted at the forward end of the connecting bar 52
illustrating the forward wheel assembly in a second op
erative position.
for the hitch device. Accordingly, the hitch device 14
may attach the frame assembly 12 to a pulling tractor
IFIGURE 9 is a partial sectional view of the land
levelling machine illustrating the rear wheel assembly 60
thereof.
iFIGURE 10 is a partial sectional view similar to FIG- '
vehicle.
-
It will also be observed that an earth moving blade
arrangement is attached to the frame assembly by means
of a plurality of blades welded or otherwise secured to
the side frame members 22 and 24 of the frame assembly,
URES 7 and 8 but illustrating the forward wheel as
sembly in a third operative position.
‘FIGURE 11 is a top plan schematic view of the earth 65 said blades extending inwardly of the frame assembly.
Referring therefore to FIGURES 3 and 11 in particular
moving blade arrangement of the land levelling machine.
it will be observed that a pair of earth de?ecting blades
Referring now to the drawings in detail, the land
58 are provided adjacent the forward end of the frame
levelling machine will be most completely illustrated in
assembly 12 for the purpose of de?ecting earth away
FIGURE 1. ‘It will therefore be observed from FIG
URE 1, that the machine is generally designated by the 70 from and thereby protecting the wheels of the forward
wheel assembly 16. The earth is thereby initially de
reference numeral 10 and is drawn along the ground and ., . ?ected toward the center of the ‘frame as the frame as
3,052,998
3
4
sembly 12 moves thereover. The second pair of blades
'within the member 82.
60 move the earth toward the center of the frame be
tween the side members thereof, the earth then being
that by controlling the angular position of the control
It will therefore be apparent
received along the sides of the V-shaped blade assembly
shaft 98 and the arms 96 attached thereto, the position
of the side frame members 22 and 24 relative to the
62. It will be observed that the pairs of blades 58‘ are
mounted on the side frame members 22 and 24 while
the blades 60' may be attached to the side frame mem
bers as well as to the member 34. The V-shaped blade
pend the frame at a given distance above the ground
as illustrated in FIGURE 7 for example. Also connected
wheel frame assembly 16 may ‘be limited so as to sus
to the pair of arms 96 are a second pair of arms 100
assembly '62 on the other hand will be supported by
to which a connecting member 102 is connected whereby
being secured to the cross tubular frame members 32 10 the angular position of the control shaft 98 may be re
and 30. Disposed rear-wardly of the V-shaped blade as
lated to the angular position of a similar control shaft
sembly ‘62 is a short de?ecting blade 64 attached to the
104 ‘on the rear wheel assembly 18. Mechanism is pro
side frame 24 and a longer de?ecting blade 66 secured
vided on the forward wheel assembly 16 for angularly
to the side frame 22 and to the tubular connecting mem
positioning the control shaft 98 so as to vary the limit
ber .28. The long blade 66 therefore directs the earth 15 ing distance between the forward end of the wheel as
sembly 16 and the frame assembly 12 so as to thereby
toward the one lateral side of the frame assembly. A
?nal smoothing and directing blade 68 is therefore pro
change the position of the frame assembly 12 above the
vided and connected between the side frame member 24
ground or with respect to the wheels 90‘ of the forward
wheel assembly. Accordingly, a cut-out portion 106 is
and the end channel member 26 for directing the earth
outwardly from the frame assembly member 72 con 20 provided intermediate the ends of the member 82 as more
nected and spaced from the frame member 22 and 26
clearly seen in FIGURE 4 exposing the control shaft 98
by means of spacer elements 74 and 76 thus de?ning a
to which a control member 108 is connected. As seen
discharge area 70. It will also be observed that a pair
in FIGURE 7, the control member 108 is connected to
of truss frame structures 20 are disposed on top of
a piston rod 110 of a hydraulic cylinder mechanism 112,
the side frame members 22 and 24 between the forward 25 the other end of which is pivotally anchored to the cross
connecting member 84 of the frame of the forward wheel
and rear ends thereof which truss structure may be welded
to the frame members and provide the requisite rigidity
assembly 16. Accordingly, by supplying hydraulic ?uid
for the frame assembly in a vertical plane. It will also
to either end of the hydraulic cylinder mechanism 112,
be apparent from the foregoing description, that the’ earth
the piston rod 110- may be extended or retracted in or
engaged by the blades hereinbefore described will be 30 der to adjust the angular position of the control shaft
moved ‘laterally between the side frame members 22 and
98 to thereby raise or lower the frame assembly 12 with
24 as the frame assembly moves over the earth to thereby
respect to the forward wheel assembly 16. A guide
insure ?lling of holes for removal of all irregularities of
bracket assembly 114 is therefore connected to the cross
the earth as the levelling machine frame levels and smooths
frame member 40 for the purpose of guiding and limit
the earth over which it passes.
35 ing movement of the control member 108. Also, hy
draulic conduits 116 are connected to the sides of the
As was hereinbefore indicated, the frame assembly 12
is supported above the ground by means of the forward
hydraulic cylinder mechanism 112 as more clearly seen
and rear wheel assemblies 16- and 18.
Referring there
fore to FIGURES 2, 3, 4, and 7, it will be observed
that the forward wheel assembly 16 includes a support~
ing frame which is made up of a pair of side tubular
in FIGURE 3 which conduits 116 are connected to suit
able hydraulic pressure generating and control mechanism
on the tractor vehicle for selectively supplying ?uid un
der pressure to the cylinder mechanism 112 for control
purposes. A ‘guide n'ng member 118 is therefore mounted
on the hitch bar member 52 for the purpose of guiding
and supporting the hydraulic conduit 116.
frame assembly 16 and a connecting member 84 inter
mediate the ends of the frame assembly 16. Additional 45 Referring now to FIGURES 8 and 9, it will be ob
bracing members 86 are provided between the members
served that the frame assembly 12 may be adjusted rela
82 and 84. The rear end of the side frame members
tive to the wheel assembly 16 in various positions above
frame members 78 and 80 which are interconnected by
a tubular control member 82 at a forward end of the
‘78 and 80 are pivotally mounted ‘on the tubular mem
the ground or on the ground as illustrated in FIGURE
ber 34 by pivot bracket 88. A pair of forward wheels
10 by angular adjustment of the control shaft 98 and the
90 ‘are rotatably mounted at the lower end of a wheel 50 arms 96 connected thereto whereby the chain connec
supporting bracket 92 swivelly mounted by means of
tion 9'4 may raise or lower the frame assembly 12 rela
swivel device 93 attached to the forward end of the wheel
tive to the wheel assembly 16. It will also be observed
assembly 16 by being welded to or otherwise secured
that the arms 100 connected to the arms 96 are also an
to the member 82 thereof. The wheels 90 are thereby
gularly adjusted to thereby actuate the connecting mem
rotatably mounted on an axis which is disposed above 55 her 102 for angular adjustment of the control shaft 104
the side frame members 22 and 24 of the frame assembly
of the rear wheel assembly 18.
12 and are disposed between the side frame members
Referring therefore to FIGURE 9 in particular it will
22 and 24 of the frame assembly. It will also be noted
be observed that the interconnecting members 102 are
that the wheels 90 are disposed adjacent to and rear
connected at their other rear ends to the arms 120 se
wardly of the blade de?ecting members 58 in protective 60 cured to the outer ‘ends of the ‘control shaft 104 of the
relation thereto so that the earth will be de?ected away
rear wheel assembly 18 together with the other pair of
therefrom permitting free movement of the wheels and
the frame assembly carried thereby.
It will therefore ‘be apparent that the forward wheels
90 rotatably supported by the frame assembly 16 may
be .pivotally moved relative to the frame assembly. "In
the absence of any connecting structure between the piv
oted frame assembly 16 and the frame assembly 12, the
frame assembly 12 would merely drop to the ground.
However, a ?exible chain 94 is provided and connected
at its lower end to the frame assembly side members
'22 and 24 and at the upper ends said chains 94 are con
nected to a pair of arms 96 which are disposed at the
outer ends ‘of the member 82 and are interconnected by
means of a control shaft 98 which is rotatably mounted 75
arms 122 by means of which chains 124 connect the rear
portion of the frame assembly 12 to the rear wheel as
sembly 18 for raising or lowering of the rear portion
of the frame assembly 12 relative to the wheel assembly
18 simultaneous with the raising and lowering of the
frame assembly 12 relative to the forward wheel assembly
16. The rear wheel assembly 18 therefore also includes
a similar frame structure including side frame members
126 and 128 interconnected by member 130 and by the
sleeve connecting member 132. The member 132 rotata
bly mounts the control shaft 104 to which the arms 120
and 122 are connected. Also secured to the member 132
are a pair of wheel supporting brackets 134 for rotatably
supporting at the lower ends thereof the rear Iwheels 136.
3,052,998
6
It will also be observed that the frame assembly 18 is
pivotally mounted on the frame member 28 for pivotal
forward end of the supporting frame, said ?exible means
and interconnecting means being connected to the angu
adjustment of the wheel assembly '18 in a manner simi
lar to that described with respect to the forward wheel
assembly 16. It will be observed however that the angu~
lar level adjustment means.
3. The machine as de?ned in claim 2, wherein said
depth control means comprises hydraulic cylinder means
interconnected between said angular adjustment means
and supporting frame intermediate the ends thereof for
varying the angular position of the adjustment means on
the supporting frame.
lar positioning of the control shaft 194 is effected by the
connecting member 102 insuring that the pivotal position
of the rear wheel assembly corresponds to that of the front
wheel assembly for maintaining the frame assembly 12
in a horizontal position.
10
From the foregoing description, operation and utility of
the land levelling machine made in accordance with this
4. The structure as de?ned in claim 1 wherein said
blade means includes a plurality of blades having a rear
wardly inclined longitudinal axis and extending only par
invention will be apparent. It will therefore be ap
tially transversely of the frame, the rearmost blade means
preciated that the leveller frame is carried in its entirety
extending completely across the frame for discharge of
by two separate wheel assemblies ‘while the levelling ac 15 material laterally of the path of movement of the frame
tion is controlled by the hydraulic cylinder mechanism
means, said frame means having an upwardly oifset por
112 under selective control of the operator of the pulling
tion at the rearmost end of the rearmost blade for en
tractor vehicle which thereby controls the level of the
abling discharge of all of the material laterally to only
frame assembly so that the forward and rear ends thereof
one side of the frame means.
are adjusted simultaneously with respect to the support
5. The structure as de?ned in claim 4 wherein said
ing wheel assemblies 16 and 18. Also, by virtue of the
frame means includes a pair of elongated straight side run—
pivotal mounting of the wheel assemblies rearwardly of
ners having the lower edge thereof in the same horizontal
the supporting wheels a more facile turning of the ma
plane as the lower edges of the blades thereby serving
chine frame may be accomplished with the wheels of the
to support the frame while leveling.
forward wheel assembly 16 differing from those of the 25
6. A land leveller comprising an elongated rigid frame,
rear wheel assembly by the swivel supporting arrange
elevatable wheel means mounted in spaced relation on the
ment in the swivel devices 93.
frame, said frame including elongated side rails for sup
The foregoing is considered as illustrative only of the
porting the frame when the wheel means is raised there
principles of the invention. Further, since numerous
by allowing the frame to slide on the ground surface,
modi?cations and changes will readily occur to those 30 means at the forward end of said frame for connection
skilled in the art, it is not desired to limit the invention
with a towing vehicle, means interconnecting the frame
to the exact construction and operation shown and de
and the wheel means for raising and lowering the wheel
scribed, and accordingly all suitable modi?cations and
means, a plurality of elongated blades mounted on said
equivalents may be resorted to, falling within the scope
frame, the longitudinal axis of the blades being in rear
of the invention as claimed.
What is claimed as new is as follows:
35
1. An earth levelling machine comprising elongated
wardly inclined relation to the longitudinal axis of the
frame, alternate of said blades having one end attached
to the same side of the frame with the other end being
horizontally disposed frame means, forward and rear
wheel assembly means pivotally mounted within said
spaced laterally inwardly from the opposite side of the
frame whereby soil Will be engaged by the initial blade,
frame means, wheel means rotatably mounted at one end 40 moved longitudinally and laterally and then discharged
of each assembly means depending below the frame
onto the front area of a trailing blade for lateral move
means and rotatable about an axis pivotally adjustable
above the frame means, a plurality of earth moving blade
ment in the opposite direction and longitudinal movement
whereby the soil moves in a zigzag path for rolling and
means mounted on said frame means for ‘movement of
pulverizing the ‘soil and for effectively ?lling low spots by
earth inwardly and outwardly with respect to said frame 45 passing the soil over such a low spot a plurality of times,
means, each wheel means being disposed adjacent to and
said wheel means being simultaneously movable, the for
rearwardly of a blade means in protective relation there
ward wheel means including caster wheels pivotal about
to, the wheel means of the forward wheel assembly
substantially a vertical axis, said frame including an
means being swivelly mounted, ?exible means intercon
offset forwardly of the rear thereof with the rearmost
necting said one end of each wheel assembly means with 50 blade having the rearmost end attached thereto whereby
the frame means for limiting downward ‘movement of
the offset portion will enable lateral discharge of material
the frame means with respect to the wheel means to a
for enabling such excess material to be picked up by a
levelling position, interconnecting means operatively con—
subsequent pass of the leveler, each wheel means includ
necting the ?exible means of the forward assembly means
ing a pivotal subframe having one end thereof connected
to the ?exible means of the rear assembly means for
with the frame and having ?exible means connecting the
maintaining the frame means horizontal at all levelling
other end thereof to the frame.
positions thereof, and depth control means operatively
connected to the forward wheel assembly means and the
References Cited in the ?le of this patent
?exible means therefor for varying the levelling position
of the frame means with respect to the wheel means of 60
the forward wheel assembly means.
2. The machine as de?ned in claim 1, wherein each
wheel assembly means comprises a Wheel supporting
frame pivotally mounted at a rear end thereof on the
frame means, said wheel means being rotatably mounted 65
adjacent a forward end of the supporting frame and
angular level adjustment means rotatably mounted at the
UNITED STATES PATENTS
425,793
1,317,037
1,711,350
1,973,372
2,142,262
2,160,376
2,745,674
Holland _____________ __ Apr. 15,
Samdahl _____________ __ Sept. 23,
Hughes ______________ __ Apr. 30,
Clapp _______________ _._ Sept. 11,
Beckham et a1 __________ __ Jan. 3,
Arndt ________________ __ May 30,
Struble ______________ __ May 15,
1890
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