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Патент USA US3065566

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Nov. 27, ‘5115962
K.‘ -w. AKAMPERT
SELF-LOADING ;:sAND ‘SPREADER AND SNOW BLAD E 3,065,556
ATTACHMENT FOR TRACTOR
i’Ei'led ‘NOV. #4, 1960
6 Sheets-Sheet 1
11v vENToE
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Nov 27’
19 2
6
W. KAMPERT
SELF-LOADING K.SAND
SPREADER AND SNOW BLADE 3’065’556
ATTACHMENT FOR TRACTOR
Filed Nov. 4', 1960
6 Sheets-Sheet 2
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KAMPERT
Nov’ 27’ 1962 SELF-LOADING K.SAND
AND SNOW BLADE 3’065’556 f
ATTACHMENT FOR TRACTOR
Filed NOT. 4, 1960
6 Sheets-Sheet 3
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Nov. 27, 1962
K. w. KAMPERTV
3,065,556
' SELF-LOADING SAND SPREADER AND SNOW BLADE
ATTACHMENT FOR TRACTOR
Filed Nov. 4, 1960
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6 Sheets-Sheet 4
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Nov. 27, 1962
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k. w. KAMFERT
SELF-LOADING SAND SPREADER AND SNOW BLADE‘ 3,065,556
ATTACHMENT FOR TRACTOR
Filed NOV. 4, 1960
6 Sheets-Sheet 5
ITHCZZ
Nov. 27, 1962
KAMPERT
SELF-LOADING SAND SPREADER
AND SNOW BL/ADE
‘
K. W.
-
3,065,556
ATTACHMENT FOR TRACTOR
Filed Nov. 4, 1960
'
6 Sheets-Sheet 6
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Patented Nov. 27, 1962
2
3,065,556
reference is made to the drawings. Firstly considering
FIGURES 1 through 4, which show the ?rst embodi~
ment of the present invention, the tractor is of the four
Keith W. Kampert, Libertyville, IlL, assiguor to The
wheel rubber-tired type and carries portions of a con
Frank G. Hough Co., a corporation of Illinois
Filed Nov. 4, 1960, Ser. No. 67,335
These elements are a ‘boom arrangement which may be
SELF-LOADING SAND SPREADER AND SNOW
BLADE ATTACHMENT FOR TRACTOR
15 Claims. (43]. 37--117.5)
ventional front-end digging bucket loader system thereon.
raised and lowered by suitable hydraulic rams pivotally
connected between the boom and the tractor, and a link
age arrangement pivotally connected between the tractor
material-handling equipment, and more speci?cally to a 10 and the boom for normally pivoting a digging bucket to
sand spreader and snow plow arrangement for the front
various positions relative to the boom. In place of the
end of a tractor.
bucket, a certain container or modi?ed bucket is pivotal
In the use of tractors for snow removal upon high
ly connected to the forward end of the boom and the
ways, many types of snow plow arrangements have been
linkage means. This container is provided for the carry
used in the art. A number of these snow plow arrange
ing of sand to be distributed upon a roadway. The con
ments include means for simultaneously spreading sand
tainer also ?xedly carries a snow plow for scraping snow
upon the roadway with the plowing of the snow. How
from a roadway. The ?rst embodiment of the present
ever, a number of disadvantages are inherent in much of
invention carries a pair of ground-engaging wheels on
This invention relates generally to tractor-operated
the equipment presently used for such purposes. Firstly,
and most importantly, the complete machine is not self
loading with respect to the sand which is to be spread,
and of necessity, some loading means is additionally re
quired. Further, such equipment generally is cumber
some, expensive, and not readily adaptable to existing
types of tractor arrangements known in the art.
It is the object of the present invention to provide
a relatively simple snow plow and sand, cinder or salt
spreader arrangement for a tractor wherein the “tractor
may be of the front-end loader type with portions of the
tractor loader mechanism being used in combination with
the snow plow and spreader attachment to produce a
unique and economical arrangement for use in roadway
work.
It is a further object of the present invention to pro
vide a unitary device for plowing snow and spreading
sand upon a roadway wherein the device is easily at
tachable to the front end of a front-end type tractor
the bucket, which ground-engaging wheels are operatively
connected to a sand-agitating or distributing mechanism
carried in the bucket or container. The ground-engaging
wheels of the bucket also prevent the snow plow from
digging downward into the ground. As may be seen in
FIGURE 1, the tractor may be moved forwardly to pro
ject the snow plow against accumulations of snow on a
roadway and as the tractor moves forwardly, the ground
engaging wheels of the bucket will rotate to operate the
sand-agitating mechanism and the sand will drop through
suitable feed holes in the bottom of the bucket and down
upon the roadway. If it is desired to substantially stop
the spreading of sand, it is merely necessary to slightly
raise the boom to raise the ground-engaging wheels of
the bucket above the roadway and to pivot the bucket
until the lower edge of the snow blade, which is integral
with the bucket, again engages the roadway. When the
bucket is empty, the subject invention may be operated
to the position shown in FIGURE 4, wherein the forward
edge of the bottom wall of the bucket, which carries a
cutting edge thereon, is lowered to ground level to engage
loader upon the removal of the digging bucket therefrom.
It is a further object of the present invention to pro
vide a tractor and snow plow-sand spreader arrangement 4:0 a pile of sand upon the ground, so that when the tractor
such as described above wherein the bin or bucket for
is then moved forwardly the bucket is again ?lled with
the sand is self-loading from a sand pile deposited upon
sand. The arrangement is then operated to return the
the ground.
, Other objects and features of the present invention will
be apparent upon a perusal of the following speci?cation
and drawings of which:
FIGURE 1 shows a side-elevational view of one em
bodiment of the present invention;
FIGURE 2 is a top plan view of the machine of
FIGURE 1;
FIGURE 3 is a partial cross-sectional view of the
structure shown in FIGURES l and 2 and taken along
the line 3—3 of FIGURE 2;
FIGURE 4 is a partial side-elevational view of the
structure shown in FIGURE l with the machine oper
ated to a loading position;
bucket and now blade or plow to the position shown
in FIGURE 1 for further plowing of snow and spread—
ing of sand.
Turning next to a general description of the second
embodiment of the present invention, that shown in FIG
URES 5 through 8, the difference between the second
embodiment and the ?rst resides most importantly in the
changed position of the ground-engaging wheels of the
bucket. In the second embodiment of the present inven
tion, the wheels of the bucket agitator are carried adja
cent the upper rearward portion of the bucket so that the
boom may be lowered to lower the bucket to cause the
wheels of the bucket to engage the upper forward surface
of the front wheels of the tractor in rolling contact there—
FIGURE 5 is a side-elevational view of a second em
with. In this position of the bucket and its pair of wheels,
bodiment of the present invention;
the snow plow or blade integrally formed with the lower
FIGURE 6 is a top plan view of the structure shown
forward portion of the bucket is in the proper position
in FIGURE 5;
60 for snow removal. As the tractor is moved forwardly to
FIGURE 7 is a cross-sectional view of the machine
plow the snow accumulations, the forward wheels of the
shown in FIGURES 5 and 6 and taken along the line
tractor will drive the wheels of the bucket which, in turn,
7—7 of FIGURE 6; and
will operate the sand~agitating mechanism of the bucket.
FIGURE 8 is a partial side’elevational view of the
In the second embodiment of the present invention, a cer
structure shown in FIGURES 5 and 6 with the machine
tain useful feature results when the two wheels of the
operated to a loading position.
bucket are both keyed to the shaft and consequently
The present embodiments are the preferred embodi
locked for rotation together as a unit. Since many of the
ments, but it is to be understood that changes can be
tractors used in the loader art of the front-wheel drive
made in the present embodiments by one skilled in the
type, the front wheels are subject to slipping on ice when
art without departing from the spirit and scope of the
the drive to the forward wheels of the tractor is through
present invention.
a conventional differential. The pair of wheels of the
For a general description of the present invention,
bucket of the second embodiment of the present invention,
8,065,556
4
3
by being locked together for rotation as a unit, will in en
gaging the forward wheels of the tractor prevent opera
tion of the differential effect to prevent one of the forward
Wheels from spinning on ice, while the other remains
stationary on a portion of the ground wherein good trac
tion may exist. The second embodiment of the present
invention is also self-loading and, as may be seen in FIG
URE 8, positioning of the open end of the bucket down
to the ground will enable the operator of the machine to
' the cutting edge 33 on the ground, the snow blade 34 will
not interfere with the loading of the bucket. The rear
fill the hopper by moving the tractor forwardly to project
the hopper into a sand pile. Relative to both embodi
ing of the bucket at ground level.
Turning next to a detailed description of the present
invention, continued reefrence is made to the drawings.
Describing the ?rst embodiment of FIGURES 1 through
the holes 36 ‘by the sand or other material in the bucket.
Ground-engaging wheels 48 are keyed to the ends of the
shaft of the rotor 38. Thus, it may be seen that when
the bucket is disposed in a position, such as shown in
FIGURES l and. 3, movement of the tractor will cause
rotation of the wheels 40 due to rolling contact thereof
with the ground to, in turn, cause rotation of the rotor
38. The left-end portion of the shaft of the rotor 38
4, a tractor is provided with a frame 18- supported on four
wheels 11, and with a rear engine compartment 12 and
outwardly of the side wall 29 and inwardly the left ground
wheel 40 is provided with two sprocket wheels 41 and 42,
ments it should be noted that due to the particular con
structions, the snow blade will not intefere with the load
wall 32 of the bucket 23 is provided with a plurality of
holes 36 extending in a spaced pattern between the side
walls 29. The bucket 28 is further provided with three
vaned agitator rotors 37, 38, and 39. The agitator rotor
38 is carried in the rearward portion of the bucket, and
the shaft thereof is journaled through the side walls 29.
The agitator rotor 38 is provided to prevent bridging of
a forwardly placed operator’s compartment 13. The trac
which are keyed thereon. These sprocket wheels are
tor carries certain boom and linkage means which may
provided for driving the rotors 37 and 39. Rotor 37 is
be substantially similar to those used on various front
carried in the upper forward portion of the bucket 28 and
end type tractor loaders such as for example shown in
the shaft thereof is journaled through the side walls 29
of the bucket 28. The left end of the shaft of the rotor
US. Patent No. 2,842,273. The boom 14 is formed in
duplicate boom arm sections, one disposed on each side 25 37 is provided with a sprocket wheel 43 and a sprocket
of the tractor. The rearward end of each section of the
chain 44 is carried about sprocket Wheels 43 and 42 so
boom is pivotally carried on the tractor by pin means 15.
that rotor 37 is rotated simultaneously with rotor 38. A
The other end of the boom 14 extends forwardly of the
similar arrangement is provided for rotor 39. Rotor 39
tractor and is disposed near the ground when the boom
is carried in the lower portion of the bucket 28 between
is in its lowermost position. The boom 14 is raised and
the forward and rearward ends thereof, and the shaft
lowered by a pair of hydraulic rams 16, disposed one on
thereof is journaled through the side walls 29 of the
each side of the tractor. The head end of each hydraulic
ram 16 is pivotally connected by pin means 17 to a ?ange
1-8 which is secured to the frame 10 of the tractor to de
pend therefrom. The rod end of each hydraulic ram 16
is pivotally connected by pin means 19 to the boom 14
intermediate the ends thereof. Thus, it may be seen
that when the hydraulic rams 16 are extended, the for
ward end of the boom 14 is raised, with retraction of
the rams 16 resulting in a lowering of the forward end
of the boom 14. The linkage means comprises a pair of
hydraulic rams 2d, a pair of levers 21, and a pair of links
22. Each hydraulic ram 20 is pivotally connected at its
head end to the tractor by pivotable mounting means 23.
The rod end of each hydraulic ram 28 is pivotally con
nected to one end of the levers 21 by pin means 24. .Each
of the levers 21 is pivotally connected intermediate its
ends at 25 to one section of the boom 14 intermediate
the ends thereof. In this arrangement, the other end of
bucket 28. A sprocket wheel 45 is keyed to the left end
of the shaft of the rotor 39 and a sprocket chain 46 is
carried on sprocket wheels 45 and 41 to cause rotation of
the rotor 39 with rotation of the rotor 38.
The ‘bucket 28 is operatively carried on the tractor
by means of a pair of ?anges 48. A pair of ?anges 48
are secured in spaced-apart relationship to each other
on the rearward portion of the upper wall 30 of the bucket
28. Pin means 49 pivotally interconnects the forward
end of the boom 14 with the rearward end of each ?ange
48. Pin means 50 interconnects the forward end of
each link 22 with the forward portion of each of the
flanges 48.
Turning next to a detailed description of the operation
of the ?rst embodiment, in order that the construction
thereof can be more readily understood and assuming
that the bucket 28 is loaded with a material such as
The lower or other end of each lever
sand, the boom 14 is adjusted by hydraulic rams 16 until
the wheels 40 of the bucket 28 engage the ground and the
hydraulic rams 20 are adjusted to provide proper angle
21 is pivotally connected by pin means 26 to one end
of one of the links 22. The links 22 extend forwardly
It may be seen that when the hydraulic rams 20 are ex
each of the levers 21 depends below the central portion
of the boom 14.
of the snow blade 34 to the snow which is to be scraped.
of the tractor.
tended, the levers 21 are rotated in a clockwise direction,
The sand bucket or container 28 comprises a pair of 55 as viewed in FiGURE 1, to cause the bucket 28 to be
parallel spaced-apart side walls 29 interconnected by an
rotated in a counterclockwise direction, as viewed in FIG
upper wall 3t), a bottom wall 31, and a rear wall 32. The
URE 1, about the axis of the shaft of the rotor 38. This
references as to directions in this description are based
operation of the hydraulic rams 20 will result in a raising
upon a bucket position such as shown in FIGURE 4.
of the lower edge of the blade 34 from the ground. Suit
The upper and bottom walls, 30 and 31 respectively, of
able retractions of the hydraulic rams 20 will result in
the bucket 28 are positioned and formed to be somewhat
a pivoting of the blade 34 toward the ground about the
converging toward the rear wall 32. The forward mar~
axis of the rotor 38 to position the snow blade '34 for
ginal edge of the bottom wall 31 carries a cutting edge
scraping accumulations of snow from a roadway. With
33 so that when the bucket 28 is in the position, such as
the forward movement of the tractor, wheels 40' will be
shown in FIGURE 4, the cutting edge 33 will aid in ?lling (i5 rotated to rotate the rotors 37, 38, and 39 to prevent
the bucket with the material to be spread. The bottom
the sand in the bucket from bridging the holes 36 as the
.wall 31 is also shaped to provide a reduced area for the
sand drops through those holes onto the roadway. When
snow blade or plow 34. The snow blade 34 is ?xedly
all of the sand has dropped from the bucket 28, it may
secured in the recessed area and to the bottom wall 31
again be re?lled from a pile upon the ground by ?rst ex
in a position so that when the open end of the bucket is 70 tending the hydraulic rams 16 to raise the boom 14 to
disposed substantially upwardly, the snow blade 34 is posi
a position, such as shown in FIGURE 4. The hydraulic
tioned substantially vertically for snow-removal opera
rams 20 are then retracted to cause the bucket 28 to be
tions. The snow blade 34 is further positioned so that
pivoted forwardly until the bottom Wall 31 is disposed
when the bottom wall 31 of the bucket 28 is disposed sub
on the ground, such as shown in FIGURE 4. The trac
stantially in the loading or bucket-?lling position with
tor is then moved forwardly to project the bucket 28 and
3,065,556
6
the cutting edge 33 into the sand pile again ?lling the
bucket. The hydraulic rams 20 are then extended to re
turn the bucket 28 to a position, such as shown in the
dotted lines in FIGURE 4, and the boom 14 is then low
ered to again bring the wheels 40 and the snow blade 34
in contact with the ground.
Turning next to a detailed description of the construc
l. A material-handling device having a four-wheel rub
ber-tired tractor, boom means operatively connected to
the tractor and extending forwardly thereof, a bucket
comprising a pair of spaced apart side walls intercon
nected by a top and a bottom wall with the forward end
being open and with the rearward end including load-re
leasing means, rneans pivotally mounting said bucket on
tion of the second embodiment of the present invention,
the forward end of said boom means so that said bucket
the parts thereof which are substantially identical with
is positionable in a load-?lling position with the open end
the parts of the ?rst embodiment are indicated by the 10 of the bucket disposed substantially forwardly of the
same numerals and need not again be described in detail.
tractor and in a load-releasing position with the open end
of the bucket disposed substantially upwardly, linkage
In the second embodiment of the present invention, agi
tator rotor 52 is substituted for agitator rotor 38, and
means operatively connected to the tractor and to said
agitator rotor 53 is substituted for agitator rotor 37. The
bucket for selectively pivoting said bucket about said
left end of the shaft of the rotor 52 outwardly of the side
pivotal mounting means to said load-releasing and load
.wall 29 of the bucket 23 carries two sprocket wheels 54
?lling positions, a scraper blade ?xedly carried on said
and 55. Sprocket wheel 55 engages the sprocket chain
bottom wall, said scraper blade and said bottom wall
46, which drives sprocket wheel 45 of rotor 39. The
being formed and positioned so that when said open end
agitator rotor 53 is carried in the upper forward portion
of said bucket is disposed substantially upwardly said
of the bucket 28 with the shaft thereof extending out 20 scraper blade is disposed in a forward scraping position
wardly from each side wall 29 of the bucket 28. Wheels
and so that when said bucket is disposed in said load-?lling
60 are keyed on each end of the shaft of the rotor 53 in
position said scraper blade is positioned to permit said
alignment with the front wheels 11 of the tractor, so that
bucket to be disposed substantially at ground level in the
when the bucket 28 is tipped rearwardly about the axis
load-?lling position of said bucket.
'
of pin means 49, the wheels 40 will engage the upper
2. A material-handling device having a four-wheel
forward portions of the wheels 11 in rolling contact there
rubber-tired tractor, boom means operatively connected
with. Thus, it may be seen that when the tractor is moved
to the tractor and extending forwardly thereof, a bucket
forwardly, the wheels 11 will rotate the wheels 40 to,
comprising a pair of spaced apart side walls intercon
in turn, rotate the rotor 53. The shaft portion of the
nected by a top and a bottom wall with the forward end
rotor 53 outwardly of the left-hand side wall 29 and in 30 being open and with the rearward end including load
wardly of the left-hand wheel 40 is provided with a
releasing means, means pivotally mounting said bucket on
sprocket wheel 56. The sprocket chain 44 is positioned
the forward end of said boom so that said bucket is posi
about sprocket wheels 56 and 54 so that when the rotor
tionable in a load-?lling position with the open end of
56 is rotated, the rotor 52 is in turn rotated by the sprocket
the bucket disposed substantially forwardly of the tractor
chain 44- and the rotor 39 is in turn rotated by the sprocket
and in a load-releasing position with the open end of the
chain 46. The wheels 40 and the rotor 53 are so posi~
bucket disposed substantially upwardly, linkage means
tioned relative to the snow blade 34 that when the wheels
operatively connected to the tractor and to said bucket for
40 engage the wheels 11, as shown in FIGURE 5, the
selectively pivoting said bucket to said load-releasing and
snow blade 34 is positioned substantially upright for the
load-?lling positions, load agitator means carried by said
normal snow-removal operation. Some adjustment of 410 bucket for agitating any material in said bucket to prevent
the snow blade 34 is provided by suitable movements of
bridging of said load-releasing means when said bucket is
the boom 14 raising and lowering the bucket 38, and by
in said load-releasing position, a scraper blade ?xedly car
suitable extensions and retractions of the hydraulic ram
ried on said bottom wall, said bottom wall and said scraper
259 to adjust the angle of the blade 34 and the contact of
blade being formed and positioned so that when said
open end of said bucket is disposed substantially upwardly
the wheels 40 with the wheels 11.
said scraper ‘blade is disposed in a forward scraping posi
A feature of the second embodiment of the present in
tion and so that when said bucket is disposed in said load
vention, which is a real advantage in the operation of
?lling position said scraper blade is positioned to permit
the present invention when the drive of the tractor is
said bucket to be disposed substantially at ground level
through a conventional differential to the forward wheels
of the tractor, is the contact of the forward wheels I] r in the load-?lling position of said bucket.
3. A material-handling device having a four-wheel rub
by the wheels 40 which are keyed at each end of the
shaft ‘of the rotor 56. Should one of the forward wheels
‘her-tired tractor, boom means operatively connected to
the tractor and extending forwardly thereof, a bucket
11 of the tractor be positioned on ice or some other sur
comprising a pair of spaced apart side walls interconnected
face wherein the coe?icient of friction between the tire
and the material is extremely low and wherein the other rMl St by a top and a bottom wall with the forward end being
open and with the rearward end including load-releasing
wheel is on a surface providing good traction, the wheels
means, means pivotally mounting said bucket on the for
40 and the shaft of the rotor 53 will function as a differ
ward end of said boom so that said bucket is positionable
ential lockout device by providing drive from the'slipping
in a load-?lling position with the open end of the bucket
wheel to the stationary wheel.
The operation of the second embodiment is substantially 60 disposed substantially forwardly of the tractor and in a
load-releasing position with the open end of the bucket
similar to that of the ?rst—-forward movement of the trace
disposed substantially upwardly, linkage means operatively
tor causing scraping of any snow accumulations by the
connected to the tractor and to said bucket for selectively
blade 34 and further causing operation of the agitator
pivoting said bucket to said load-releasing and load-?lling
rotors 53, 52, and 39 by the wheels 40. The second empositions, load agitator means carried by said bucket for
lbodiment is also self-loading in a similar manner in that
agitating any material in said bucket to prevent bridging
the boom 14 may ?rst be raised to position the bucket 28,
of said load-releasing means, means carried by said bucket
such as shown in the dotted lines in FIGURE 8, and the
to operate said load agitator means responsive to forward
hydraulic rams 2d may then be retracted to position the
movements of said tractor, a scraper blade ?xedly carried
bucket in the solid line position shown in FIGURE 8
for re?lling of the bucket 28 with the sand or other suit 70 on said bottom wall, said bottom wall and said scraper
blade being formed and positioned so that when said
able material. In the ?lling operation of the bucket 28,
open end of said bucket is disposed substantially upward
the snow blade 34- will not interfere with the easy and
ly said scraper blade is disposed in a forward scraping
convenient ?lling of the bucket.
position and so that when said’ bucket is disposed in said
Having described the invention, what is considered new
and desired to be protected by Letters Patent is:
75 load-?lling position said scraper blade is positioned to
3,065,558
6
permit said bucket to "be disposed substantially at ground
8
‘by a top wall and a bottom Wall converging to a rear wall
with the forward end of said bucket being substantially
level in the load-?lling position of said bucket.
open, ?ange means secured to the top wall of said bucket
4. A material-handling device having a four-Wheel
substantially adjacent the connection thereof with said
rubber-tired tractor, boom means operatively connected
to the tractor and extending forwardly thereof, a bucket 5 r>ar wall, said ?ange means pivotally connecting said
bucket to the forward end of said boom and said linkage
comprising a pair of spaced apart side walls interconnected
by a top and a bottom wall with the forward end being
open and with the rearward end including load-releasing
means, means pivotally mounting said bucket on the
means so that said bucket is movable to a load-releasing
bucket disposed substantially upwardly, linkage means
and being formed and positioned so that when said open
position with the open end of said bucket disposed sub
stantially above said rear wall and to a load-?lling posi
forward end of said boom so that said bucket is position 10 tion with said rear wall disposed substantially rear
wardly of said open end of said bucket responsive to
able in a load-?lling position with the open end of the
operations of said boom and linkage means, and a scraper
bucket disposed substantially forwardly of the tractor and
blade ?xedly carried on said bottom wall of said bucket
in a load-releasing position with the open end of the
operatively connected to the tractor and to said bucket
end of said bucket is disposed substantially upwardly
for selectively pivoting said bucket to said load-releasing
and load-?lling positions, load agitator means carried
by said bucket and operable to agitate any material in
said bucket to prevent bridging of said load-releasing
said scraper blade is disposed in a forward scraping posi
tion and so that when said bucket is disposed in said lead
iilling position said scrapper blade is positioned above the
forward marginal edge of said bottom wall of said bucket.
means, a scraper blade ?xedly carried on said bottom
7. A material-handling device as claimed in claimv 6
wherein said bucket further including at the rearward end
a load releasing means, and said bucket is provided with
load agitator means operating responsive to the forward
movement of said tractor when said bucket is in said
load-releasing position to agitate any load in said bucket
to prevent bridging of said load-releasing means.
8. A material-handling device having a four-wheel rub
ber-tired tractor, boom means operatively connected to
the tractor and extending forwardly thereof, a bucket
30 comprising a pair of spaced-apart side walls intercon
wall, said bottom wall and said scraper blade being
formed and positioned so that when said open end of
said bucket is disposed substantially upwardly said scrap
er blade is disposed in a forward scraping position and
so that when said bucket is disposed in said load-?lling
position said scraper blade is positioned to permit
said bucket to be disposed substantially at ground level
in the load-?lling position of said bucket, wheel means
carried by said bucket and operatively connected to said
load agitator means, said wheel means positioned on said
bucket so that when said bucket is disposed in said load
releasing position the lower marginal edge of said scraper
nected by a top wall and a bottom wall converging to a
rear wall with the forward end of said bucket being sub
stantially open, means pivotally connecting said bucket to
blade is positioned at ground level and said wheel means
the forward end of said boom so that said bucket is
engages the ground in rolling contact so that said load
agitator means is operated responsive to forward move 35 movable to a load-releasing position with the open end
of said bucket disposed substantially above said rear wall
ments of said tractor.
5. A material-handling device having a four-wheel
and to a load-?lling position with said rear wall disposed
substantially rearwardly of said open end of said bucket,
rubber-tired tractor, boom means operatively connected
linkage means operatively connected to the tractor and
to the tractor and extending forwardly thereof, a bucket
to said bucket for selectively positioning said bucket in
comprising a pair of spaced apart side walls intercon
said load-releasing and load-?lling positions, and a scraper
nected by a top and a bottom wall with the forward end
blade being formed in an arcuate shape and being posi
being open and with the rearward end including load
tioned vertically and carried ?xedly on said bucket bot
releasing means, means pivotally mounting said bucket
tom wall when said bucket is in substantially said load
on the forward end of said boom so that said bucket is
releasing position, so that when said open end of said
positionable in a load~?lling position with the open end of
the bucket disposed substantially forwardly of the tractor
bucket is disposed substantially upwardly said scraper
and in a load-releasing position with the open end of the
blade is disposed in a forward scraping position and so
that when said bucket is disposed in said load-?lling po
sition said scraper blade is positioned above the forward
bucket disposed substantially upwardly, linkage means
operatively connected to the tractor and to said bucket for
selectively pivoting said bucket to said load-releasing and
load-?lling positions, load agitator means carried by said
bucket and operable to agitate any material in said bucket
to prevent bridging of said load-releasing means, wheel
means carried by said bucket and operatively connected
to said load agitator means to operate said load agitator
means responsive to rotations of said wheel means, said
wheel means positioned on said bucket so that said wheel
means engages the forward wheels of said tractor in rolling
contact when said bucket is disposed in the load-releasing
position and said boom is in a lowered position, a scraper
blade ?xedly carried on said bottom wall, said bottom
wall and said scraper blade being formed and positioned
so that when said open end of said bucket is disposed
substantially upwardly said scraper blade is disposed in a
forward scraping position and so that when said bucket
50 marginal edge of said bottom wall of said bucket.
9. A material-handling device having a four-wheel rub
ber-tired tractor, boom means operatively connected to
the tractor and extending forwardly thereof, a bucket com
prising a pair of spaced-apart side walls interconnected
by a top wall and a bottom wall converging to a rear
wall with the forward end of said bucket being substan
tially open and with the rearward end thereof including
a load-releasing means, means pivotally connecting said
bucket to the forward end of said boom so that said
bucket is movable to a load-releasing position with the
open end of said bucket disposed substantially above
said rear wall and to a load-?lling position with said rear
wall disposed substantially rearwardly of said open end
of said bucket, linkage means operatively connected to
the tractor and to said bucket for selectively positioning
said bucket in said load-releasing and load-?lling posi
tions, load agitator means carried by said bucket for
agitating any material in said bucket to prevent bridging
‘is disposed in a load-?lling position said scraper blade
is positioned to permit said bucket to be disposed sub
stantially at ground level in the load-?ling position of
said bucket.
6. A material~handling device having a four-Wheel rub 70 of said load-releasing means, and a scraper blade ?xedly
carried on said bottom wall of said bucket and being
ber-tired tractor and having boom means operatively con
formed and positioned so that when said open end of
nected to the tractor and extending forwardly thereof
said bucket is disposed substantially upwardly said scraper
and linkage means operatively connected to the tractor
blade is disposed in a forward scraping position and so
and extending forwardly thereof, a bucket attachment
that when said bucket is disposed in said load-?lling posi
comprising a pair of spaced-apart side walls interconnected
3,065,556
10
tion said scraper blade is positioned above the forward
marginal edge of said bottom wall of said bucket.
10. A material-handling device having a four-wheel rub
of said bucket, linkage means operatively connected to the
tractor and to said bucket for selectively positioning said
ber~tired tractor, boom means operatively connected to
load agitator means carried by said bucket and operable
to agitate any material in said bucket to prevent bridging
of said load-releasing means, wheel means carried by said
bucket and connected to operate said load-agitator means
responsive to rotations of said wheel means, said wheel
the tractor and extending forwardly thereof, a bucket
comprising a pair of spaced-apart side walls interconnect
ed by a top wall and a bottom wall converging to a rear
bucket in said load-releasing and load-?lling positions,
wall with the forward end of said bucket being substan
tially open and with the rearward end thereof including a
means being positioned on said bucket so that said wheel
load-releasing means, means pivotally connecting said 10 means contacts the forward wheels of said tractor in ‘
bucket to the forward end of said boom so that said bucket
rolling contact therewith when said bucket is positioned in
is movable to a load~releasing position with the open end
said load-releasing position and said boom is in a low
of said bucket disposed substantially above said rear wall
ered position, and a scraper blade ?xedly carried on said
and to a load-?lling position with said rear wall disposed
bottom wall of said bucket and being formed and po
substantially rearwardly of said open end of said bucket,
sitioned so that when said open end of said bucket is
linkage means operatively connected to the tractor and
disposed substantially upwardly said scraper blade is dis
to said bucket for selectively positioning said bucket in
posed in a forward scraping position and so that when.
said load-releasing and load-?lling positions, load agita
tor means carried by said bucket and operable to agitate
any material in said bucket to prevent bridging of said
load-releasing means, means carried by said bucket to
operate said load agitator means responsive to forward
movements of said tractor, and a scraper blade ?xedly
carried on said bottom wall of said bucket and being
formed and positioned so that when said open end of said 25
said bucket is disposed in said load-?lling position said
scraper blade is positioned above the forward marginal
edge of said bottom wall of said bucket.
13. A material-handling device as claimed in claim 12
wherein said wheel means comprises a shaft journaled
through the side walls of said bucket and a pair of wheels
keyed one to each end of said shaft, said shaft being of
a length so that said pair of wheels are positioned a
bucket is disposed substantially upwardly said scraper
spaced-apart distance substantially equal to the spacing
blade is disposed in a forward scraping position and so
that when said bucket is disposed in said load-?lling po
sition said scraper blade is positioned above the forward
marginal edge of said bottom wall of said bucket.
11. A material-handling device having a four-wheel rub
of said forward wheels of said tractor whereby each wheel
ber-tired tractor, boom means operatively connected to
the tractor and extending forwardly thereof, a bucket
comprising a pair of spaced-apart side walls interconnect
of said pair of wheels contacts one of the forward wheels
of said tractor in rolling contact therewith so that depend
ent upon the degree of frictional contact between said pair
of wheels and said forward wheels of said tractor are
prevented from rotating relative to each other. '
14. A material-handling device having a four-wheel
rubber-tired tractor having a boom and linkage means
ed by a top wall and a bottom wall converging to a rear 35 operatively connected to the tractor and extending for
wall with the forward end of said bucket being substan
tially open and with the rearward end thereof including
a load-releasing means, means pivotally connecting said
bucket to the forward end of said boom so that said
wardly thereof, a bucket comprising a pair of spaced
apart side walls interconnected by a top and a bottom
wall with the forward end being open and with the rear
ward end including load-releasing means, means on one
bucket is movable to a load-releasing position with the
open end of said bucket disposed substantially above said
wall of said bucket pivotally connecting said bucket to
rear wall and to a load-?lling position with said rear wall
whereby said bucket is positionable in a load-?lling posi
tion with the open end of the bucket disposed substantial
ly forwardly of the tractor and in a load-releasing posi
tion with the open end of the bucket disposed substantial
ly upwardly, a scraper blade ?xedly carried on said bot
tom wall, said bottom wall and said scraper blade being
formed and positioned so that when said open end of said
bucket is disposed substantially upwardly said scraper
blade is disposed in a forward scraping position and so
that when said bucket is disposed in said load-?lling po
sition said scraper blade is positioned to permit said
bucket to be disposed substantially at ground level in the
disposed substantially rearwardly of said open end of said
bucket, linkage means operatively connected to the trac
tor and to said bucket for selectively positioning said
bucket in said load-releasing and load-?lling positions,
load agitator means carried by said bucket and operable
to agitate any material in said bucket to prevent bridging
of said load-releasing means, wheel means carried by
said bucket and connected to operate said load-agitator
the forward end of said boom and said linkage means
means responsive to rotations of said wheel means, said
wheel means positioned to extend rearwardly of said
rear wall so that when said bucket is disposed in said load
releasing position said wheel means contacts the ground
load-?lling position of said bucket, and load agitator
in a lowered position of said boom, and a scraper blade 55 means operating responsive to the forward movement of
?xedly carried on said bottom wall of said bucket and
said tractor when said bucket is in said load-releasing
being formed and positioned so that when said open end
of said bucket is disposed substantially upwardly said
scraper blade is disposed in a forward scraping position
position to agitate any load in said bucket to prevent
bridging of said load-releasing means.
15. A material handling device having a four-wheel
and so that when said bucket is disposed in said lead 60 rubber-tired tractor, means operatively connected to the
tractor and extending forwardly thereof, a bucket com
?lling position said'scraper blade is positioned above the
forward marginal edge of said bottom wall of said bucket.
prising a pair of spaced-apart side walls interconnected
12. A material-handling device having a four-wheel
by a top and a bottom wall with the forward end being
rubber-tired tractor, boom means operatively connected
open and with the rearward end including load-releas
to the tractor and extending forwardly thereof, a bucket 65 ing means, means pivotally mounting said bucket on said
comprising a pair of spaced-apart side walls interconnect
forwardly extending means so that said bucket is selec
ed by a top wall and a bottom wall converging to a rear
tively positionable and movable from a load-?lling posi
wall with the forward end of said bucket being substan
tion with the open end of the bucket disposed substantial
tially open and with the rearward end thereof including a
ly forwardly of the tractor and said bucket is selectively
load-releasing means, means pivotally connecting said 70 positionable and movable from a load-releasing position
bucket to the forward end of said boom so that said
with the open end of the bucket disposed substantially up
bucket is movable to a load-releasing position with the
wardly of the tractor, and a scraper blade being formed
open end of said bucket disposed substantially above said
in an arcuate shape and being positioned vertically and
rear wall and to a load-?lling position with said rear
carried ?xedly on said bucket bottom wall when said
wall disposed substantially rearwardly of said open end 75 bucket is in substantially said load-releasing position, so
8,065,556
12
11
that When said open end of said bucket is disposed sub
stantially upwardly said scraper blade is disposed in a
forward scraping position and so that when said bucket is
disposed in said load-?lling position said scraper blade
is positioned above the forward marginal edge of said 5
bottom wall of said bucket.
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,288,514
Clutter ______________ __ Dec. 24, 1918 10
1,415,880
Leinberger et a1 _______ __ May 16, 1922
1,816,522
2,488,695
2,635,884
2,755,092
2,799,510
2,829,826
2,830,392
Fundom ____________ __ July 28,
Upton ______________ __ Nov. 22,
Christiansen _________ __ Apr. 21,
Donahoe ____________ __ July 17,
Schmidt _____________ __ July 16,
SWenson _____________ __ Apr. 8,
Blomquist ____________ __ Apr. 15,
1931
1949
1953
1956
1957
1958
1958
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