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Патент USA US2404619

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July 23, 1946;
G. E. coATs
2,404,61 9
LOADING MACHINE
Filed March 31, 1945
4 Sheets-Sheet 1 ,
July 23, 1946.
G. E, COATS
2,404,619‘ ‘
LOADING MACHINE
Filed March 31, 1945
4 Sheets-Sheet 2
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July 23, 1946.
2,404,519
G. E. coATs
LOADING MACHINE
Filed March 31, 1945
4 Shéets-Sheet 3'
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2,404,619
G. E. CO‘ATS
LOADING MACHINE
Filed March 31, 1945
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4 Sheets-Sheet 4
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Patented July 23, 1946
2,404,619 -
UNITED STATES PATENT OFFICE
2,404,619
LOADING MACHINE
Gilbert E. Coats, Fort Dodge, ‘Iowa
Application March 31, 1945, serial no. §85,§8l
(01. 214-141)
'7 Claims.
2
1
Fig. i is a site ere‘vanonh view (if the loading
This invention relates generally toloading ma‘
chines and in particular to a _lpading_attachment
attachment of thisinventionin assembly rela- ‘
for a tractor for picking up and stacking or load
tion with a farm tractor of a usualtype;
4
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Fig. 2 is a plan view of the loading attachment
ing hay, manure, snow and like material.‘ ‘This
application is an improvement of co-pending ap
and tractor assembly;
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_
II
Fig. 3 is a sectional view taken on the line
plication Serial No. 537,945 filed en May 29, 1944.
An object of this invention is to provide a load
ing machine in which a load-‘carrying unit is
3-'—j3inFig.2;
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Fig. 4 is a front elevational viewof the loading
attachment and tractor assembly with certain
supported on telescoping ‘pivoted lifting arms
which are extended, as they are elevated, by the
parts broken away to more clearly show the con
action of arm lifting cables.
struction of the attachment;
7
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trolling the arm lifting cables;
be quickly and easily mounted on and removed
_ ‘
Yet a, further object of this invention is to pro
vide a snow scoop, fora tractor mounted load
_s
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Fig. '7 is a sectional view as seen along the line
20 l—-'| in Fig. 6;
Fig. 8 is a sectional view taken on the line
ing‘v attachment, which is readily interchangeable
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arm-lifting cables;
s_'s in Fig. 6;
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Fig. 9 is an enlarged elevatienal detail‘ viewIIof
with other load-carrying units for the attach
ment.
_
Fig. 6 is a fragmentary rear elevational view of
the top portion of the upright frame of the at- I
tachment showing the pulley supports for_the
from different types of farm, tractors and oper
load-‘carrying unit in a loading machine.
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in Fig. 4 showing the clutch mechanism for con‘
a tractor mounted loading attachment which‘ can
ated by the usual side belt pulley on a, tractor.
Another object of this invention is to provide
an improved latch and trip mechanism for the
I
Fig. 5 is a sectional View taken on the line 5'-‘—'5
A further object of this invention is to provide
a tightening device for the drive belt connected
_
Anotherv object of this invention is to provide a with the tractor belt pulley; I
Fig. 10 is a sectional View as seen on the line
a tractor mounted loading attachment having an
upright frame and a pair of pivoted lifting arms
|0I—IllinFig.9;
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Fig. 11 is a fragmentary rear detail view, partly
in section, of a lower end extension on one of the
a load-carrying unit I on the front‘ end. of the
arms is maintained substantially adjacent the 30 guides for guiding the up and down movement of
arranged at opposite sides of the‘ frame, in which
thepivoted lifting arms;
forward side of the upright frame at all elevated
positions of the arms.
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changed positions; and
at opposite sides of the tractor, and an upright
With reference to'the drawings the loading at
tachment of this invention is illustrated inIFige.
are inclined rearwardly and downwardly from
the upright frame at all pivotally moved positions
_
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.
ing arms with a, load-carrying scoop;
frame at the forward end of the tractor for sup‘
porting lifting cables, in which the lifting cables
_
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Fig 13' is a sectional view taken on the line
13-13 in Fig. 2 showing the assembly of the lift
having a pair of extendible lifting arms arranged
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,
I2—‘-I2 in Fig. 11 showing the parts thereof in
A feature of this invention is found in the pro
vision of a tractor mounted loading attachment
of the arms.
I
Fig. 12 is a sectional view as seen on the line
_
1 and 2 mountedon a farm tractor of a usual type
having a body frame or chassis 15, rear wheels
I
l6 and front steering wheels ll. A usual side belt
pulley is indicated at | a in I operative association
A further feature of this invention is found in
the provision of a tractormounte‘d loading at’
tachment having a pair of oppositely arranged
with the tractor transmission mechanism (not
pivoted loadflifting ‘arms, in which an upright 425
> The loading attachment‘ of this invention in
means for guiding the arms in theirup and down
cludes a pair of pivoted teles'coped lifting arms
movement is} provided with a pivoted extension
[9 and 29 arranged at opposite sides of, the trac
at its lower end movablein at forward and [rearL
tor frame l5 and pivotally Supported at their
ward direction to accommodate changes in ele
shown)
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vation in a ground surface over which the trac 50 rear ends 22 on brackets 23 carried on the trac
tor rear axle 24. Each lifting arm 19 and 2l'l'is
tor is travelling.
comprised of a pair of pipe or arm members 25
Further objects, features _ and advantages of
and 26 arranged in a telescopic relation, with the
this invention will become apparent from the fill
arm member 26 telescoped over the forward por
lowin'g description when taken in connection with
the accompanying drawings in whichf
‘
65
tion or the arm member 25 which has its rear end
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22 pivoted onra bracket 23'. The arm member 25
otally moved forwardly by the action of the trig
is thus axially or longitudinally movable relative ‘
ger member 58 so as to be in a position to releas
ably engage the catch member 44 on the return
movement of the scoop 32 to a loading, position.
Adjustmentof the bottom of the scoop 32 relative
to the arm member 2%, with the rearward longi
tudinal movement of the arm 26 being limited by "
the engagement of its rear end with a pin 21 ex
tended through a selected pair of aligned open
ings 28 in the arm member 26. The pin 21 thus
de?nes the contracted position of the arm mem
to the ground is accomplished by adjusting the
length of the latch 34 through the bolt 31 con
necting the latch upper member 36 and lower
bers 25 and 26 with such contracted position be- 1
member 31. Thus when it is desired to elevate the
ing dependent on the length of the tractor upon 10 front end of the scoop 32 the latch 34 is shortened,
which the loading attachment’ is to be mounted.
while to lower the scoop front end the latch .34 is
The front ends of the arm members 26 are pro_
Jected forwardly of the tractor and connected to- 1
lengthened.
(Figs. 3 and. 4) which are secured to opposite
supported fromgadjacent the top of an upright .
The lifting arms i9 and 20 are pivotally raised
gether at such" front ends by a frame structure’
and lowered by means including a pair of lifting
comprised of a pair of channel beams 29 and 3| 15 cables Si] and ‘5! (Figs. 1 and 4) . The cables are
1. sides of the arm.members 26, .with the top beam
29 located rearwardly of the front side of the
7': bottom beam member 3!. A load-carrying scoop,
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frame comprised of a pair of transversely spaced
upright frame members 62 and 63 mounted at
their lower ends on the front end of the tractor
indicated generally as 32, is pivotally supported 20 frame l5 and having their upper ends connected
at. 33 on the front ends of the lifting arms I9 and 7
together by a transverse frame member 64, the
2B in a manner which will be later described.
ends of which project laterally outwardly from
In order to releasably hold the scoop 32 in a
the frame member's 62 and 63.‘ The upright frame
loading position there is provided a latching
is held against any forward and rearward tilting
mechanism including an upright pivoted latch 34 25 movement by braces 65 extended rearwardly and
(Figs; 3 and 4) comprised of an upper member 36
. downwardly from the upright frame members 62
and a lower member 3?. A bolt 38 extended
and $3 for connection with the tractor frame l5.
through the lower member 31 is receivable in a
Each cable 60 and 6! is operatively associated with
slot 39 formed in the upper member 36 to provide
a pair of spaced pulleys 65 and 66 rotatably sup
for the adjustment of the length of the latch 34.
ported at the top of the upright frame for ro~
The bottom end of the lower member 31 is of a
tation in a plane transversely of the tractor
loop- form adapted to receive a pin 45 to support
frame 15. The pulleys 66 have their adjacent
the latch in a bracket 42, carried on the top of
ends located inwardly of corresponding frame
the bottom beam member 8!, for pivotal move~
members 62 and 63 while the outer end of each
ment in a direction longitudinally of the tractor.
35 pulley 65 is adjacent a corresponding end of the
The latch “adjacent its upper end’is formed
withan opening 43 of a size to receive, in re- .
, leasable engagement, a catch member Ml pro
jected rearwardly and slightly upwardly from the
transverse frame member 64 for a purpose which
will appear later.
As best appears in Figs. 6, 7 and 8 the frame
members 62, 63 and 64 are of an angle iron con
3 back side 46 of the scoop 32.
40 struction, with the transverse frame member 64
A rearward extension 41 adjacent the top of the
having the angle thereof at the‘top and front
l ~latch 3H is formed at its free end with an opening
side of the upright frame. A supporting plate 6'!
‘ '43 for slidably receiving the free end'of a trigger
is welded to the bottom of the top horizontal leg
or release member 49 which is projected radially
of the frame member 64 over the end portion
from the inner end of a rock shaft 5i rotatably 45 thereof de?ned by a pair of associated pulleys 65
‘ supported in bearings 52 carried on the upper
and 66, with such pulleys being rotatable on pins
side of the top beam member 29. The outer end
68 extended between the front leg 69 of the frame
i of the shaft 52 carries a rock lever 53 (Figs. 1v
member 64 and a plate 6?. Extended transversely
and 2) - which is pivotally connected at its upper
across each end of the frame member 64 is a sup
end with one end of a rod 54, the opposite end of 60 porting plate 10.
>
3 which is pivoted to a handlever 56 pivoted at its
_ The movable or telescoping member 25 of each
lower end 51 on'the top of the arm member 25
lifting arm l9 and 20 has a bracket ‘H of a sub
for the lifting arm 19. The lever 53, and in turn
stantially inverted U shape welded on its upper
1 the shaft 52, are continuously biased in a clock
side at a position substantially intermediate the
. wise direction as viewed in Figs. 1 and 3, by a ten 55 ends of an arm member 26. As clearly appears in
. sion spring 58 connected at one end to the lower
Fig. 1 when an arm member 26 is in a telescoped
‘end of the rock lever 53 and at its opposite end
or contracted position the bracket ‘H is located
to a lug 59 carried on the arm member 26, of the
rearwardly of the upright frame which is sup
‘lifting arm 19, at a position rearwardly of the
ported at the front end of the tractor frame [5.
‘Shaft 52. This biasing action of the" spring 58
1A pulley 12 is rotatably supported within each
acts to continuously urge the trigger member 49 60 bracket ‘H on a pin member 13. In one embodi
forwardly, or in a clockwise direction, as viewed
ment of the invention the arm member 26 is
in Fig. 3, with the member 49 in turn acting on
about eight feet long and the pulley pin 73 is
. the latch 34 to move and yieldably maintain the
located about three feet rearwardly from the free
1 latch opening 43 in a position for engaging the 65 end of the arm member 26.
‘patch 44 on the scoop 32.
Since the assembly of each cable SO'and 6|
‘__".In‘ the operation of the latching mechanism to
With_its associated pulleys 65 and 66 is the same
release or dump the scoop 32 the hand lever 58
only the assembly of the cable 60 will be referred
j is pivoted rearwardly or to the left, as viewed in
to in detail in the following description. The
. Fig. 1, to in turn rotate the rock shaft 52 in a 70 cable 60 has one end ‘(4 (Fig. 1) connected to
‘ counter-clockwise direction, as also viewed in
the front end of the supporting plate 10, and is
‘ Fig. 1, whereby the latch 35 is moved out of an
then extended downwardly for passage about
‘ engaging position with the catch member 44. By
the pulley 72 carried'in the bracket 7!, from
. virtue of the action of the spring 58, on release of
which pulley the cable is passed upwardly over
the hand lever .56, the‘latch member 34 is piv 75 the pulley 65 and through an opening 16 in the
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leg ‘I‘! of the upright frame member 92 over
the pulley 96 '(Fig. 6). ‘From the pulley 69 the
cable 69 extends downwardly for‘connection of
its other end about a‘winding drum ‘I8 (Fig. 4).
The cable 6| has a corresponding winding pulley
89.
The Winding pulleys l9 and 99 are mounted
on a common transverse shaft ‘(9 rotatably sup
ported in bearings '8I carried on the forward
side of the upright frame members 92 and 93.
The bearings 8I are secured to a corresponding
and 29, and to retain the scoop 32 at any elevated I
or moved position of the lifting arms, is con
trolled entirely by the manipulation of ‘the clutch
lever 91 in a manner now to, be described. With
reference to Fig. l the lever 91 is shown with its
upper or free end pivoted to an actuating rod
I94 which extends toward the rear of the tractor
to a position conveniently accessible to the trac
tor operator. The rod I94 is slidably supported
in, an upright frame‘ member I99 mounted on
the tractor frame I5, and its rear end is formed
with a hand grip I91.
Pivoted ‘at one end adjacent the lower end
of the lever 91 (Fig. 5) is a link I98'the opposite‘
frame member 62 and 93 by bolts 82 extended
therethrough and through slots '93 in the frame
members whereby the shaft ‘I9 is adjustable in
an up and down direction on the upright frame 15 end of which is pivotally connected at I99 with
for a purpose which will appear later.
‘
Mounted on the shaft 19 between the winding
drums ‘I8 and 89 is a sprocket 84 connected by
a sprocket chain 86 to a sprocket 9‘! carried on a
sleeve member 88 which is rotatable on a driving 20
shaft 89 located below the shaft ‘I9 and rotatably
supported in bearings 99 and 92 secured to the
frame members 92 and 69, respectively, in the
upright frame. Integrally formed with the
sleeve member 89 is a shell member 93 which 25
constitutes one of the units in a friction clutch
mechanism indicated generally at 99. A second
clutch unit 99 is of a conical shape, adapted to
be received in frictional engagement within the
shell member 93, and mounted on the driving
shaft 89. By moving the shell member 99 axially
of the shaft 99 into and out of frictional en
gagement with the second clutch unit or conical
the arm III of a bell crank H9 of an irregular
shape. A shaft portion, I I2 connected between
the crank arm I'III and a crank arm H5 is
rotatably supported in a bearing H3 mounted
on a bottom transverse frame member H4 ex
tended between the upright frame members 62
and 63. ' The crank arm I I5 is extended laterally
and forwardly from'the shaft portion H2 and
then parallel and away from the shaft portion
IIZ. A brake band I'I‘i is positioned about the
upper half of the clutch shell member 93 and
has one end IE8 pivoted to the crank‘ arm I I5
and an opposite end H9 pivoted on a bolt I2I
secured to the bottom transverse frame member
H4.
The brake band II‘! is normally held in fric
tional engagement with the clutch shell mem
ber ‘99 by a spring I22 ‘connected at one end
to a bracket I23 on the upright frame member
member 99, power is transmitted from the shaft
89 to the shaft ‘I9 through the sprocket and 35 92 and at its opposite end to the free end I24
of the bell crank arm III. On actuation of the
chain assembly 84, 89 and 81 (Figs. 4 and 5).
clutch lever 91 in a direction toward the rear of
This movement of the shell member 93 rela
the tractor, or in a counter-clockwise direction
tive to the cone member 99 is accomplished by
as viewed in Fig. 5,‘ the shaft portion H2 is
means including a clutch lever 9‘! integrally
formed with a hub portion 99 which is rotatable 40 rotated in a counter-clockwise direction, as also
viewed in Fig. ‘5, by the action of the link I98
on the driving shaft 89 at a position adjacent
on the bell crank II9 whereby the end IIB of
to the sleeve member 88. The lever 91 extends
the‘brake band II‘! is moved upwardly. This
upwardly to a position adjacent the transverse
movement of the brake band H‘I releases its
frame member 94 of the upright frame and is
frictional engagement with the clutch shell mem
of a form to be received within the winding
ber s93. When the shell member ‘93 is thus re
drum ‘I8 for movement radially of such winding
leased, the scoop 92 is free to move downwardly
drum without interfering with the wrapping and
from any "elevated position due to the‘action of
unwrapping of the cable 99 relative to the wind~
gravity. On a continued movement of the clutch
ing drum, as is clearly illustrated in Fig. 5. The
hub 98 is formed with a cam surface 99 for
operative association with a corresponding cam
surface I9I formed on the inner side of the bear
lever 9‘I in a counter-clockwise direction the cam
surfaces 99 and I9I are relatively moved a dis
tance suf?cient to frictionally engage the shell
member 93 with the cone member 96, in the
ing member 99. Referring to Fig. 4 the bearing
manner above fully described, to provide for
member 99,~hub 98, and sleeve member 98 are
seen to be in a stacked relation on the driving 55 the driving of the shaft ‘I9 from the shaft 89.
When the clutch lever 9‘! is released the brake
shaft 89.
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band II‘! is automatically moved into a braking
Thus on pivotal movement of the clutch lever
position with the shell member 99 by the action‘
91 in a direction rearwardly of the tractor, or
of the spring I22. It is thus seen that the elevat
toward the left, as viewed in Fig. 5, the sliding
ing of the scoop 32, its retention in an elevated
engagement of the cam surfaces 99 and I9I
position, and its release for falling downwardly
moves the hub 99 and sleeve 88 toward the right,
to the ground by the action of gravity/is controlled
as viewed in Fig. 4, to in turn move the shell
entirelyby the‘actuation of the clutch lever 91.
member 93 axially on the shaft 89 into frictional
In the operation of the loading machine of this
engagement with the cone member 199. Since the
cone member 99 rotates with the driving shaft 65 invention assume the lifting arms I9 and 29 to
be in their lowered and contracted positions
89 this frictional engagement of the members 93
shown in Fig. 1, that is with the arm members
and 96 connects the shaft ‘I9 with the shaft 89
29 moved to their rearward positions against the
through the sprocket and chain assembly 94, 89
stop pins 21. With the lifting arms I9 and 29
and '87. The shaft 89 has one end projected
laterally from the upright frame member 92 70 thus positioned the pulleys ‘I2 for connecting the
cables 69 and BIwith the lifting arms are located
which projected end carries a pulley I92 con
rearwardly of the upright frame. On manipula
nected through a belt I93 with the tractor belt
tion of the clutch lever S'Lin the manner above.
pulley I8 (Fig. 1).
described, to release the brake band Ill and con
The connection and disconnection of the shafts
1'9 and 89 to pivotally move the lifting arms I9 75 nect the shaft ‘I9 in a driven relation with the
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‘shaft 89, the‘ cables to and st are 'wound'about
pins 21 to in turn carry the pulleys l2 rearwardly
their corresponding drums ‘I8 and 80 to elevate
‘ the lifting arms I9 and '29. During the elevation
of the upright frame. When the scoop 32, theree
fore, is to be lifted again the cables 60 and 6|
of the liftingarms I9 and 20 the cables 69v and
are inclined rearwardly from the upright frame
and positioned to extend the arm members 26
GI tend to assume a position vertically down
‘ wardly from the pulleys 65 ‘or a position within
- concurrently with an elevation of the scoop 32.
the plane‘of the upright frame as illustrated in
1 dotted lines in' Fig. 1. This action of the cables
To stabilizethe lifting arms I9 and 20 against
movement laterally or transversely of the tractor
I 60 and 6| in‘turn moves the» pulleys ‘I2 toward a
at substantially all elevated positions of the arms,
‘ position in the plane of the upright frame where
there is provided an arm guide means‘ (Fig. 4)
which iscomprised of a pair of guide members
I39 and I3I oppositely arranged in a spaced re
gby the‘ arm members 26 are extended forwardly
j of the upright frame. In other words, due to the
1 action of the cables 69 and 6| on the pulleys ‘I2
the‘ arm members26 are extended from their con
1 tracted or telescoped positions, shown infull lines
‘ in Fig. 1, to their dotted line positions, also shown
§in Fig. 1, concurrently with the elevating of the
‘lifting arms I9 and 29, whereby'the scoop 32 is
‘retained in a position adjacent the forward side
‘ of the upright frame at all pivotally moved posi
tions of the arms I9 and 20.
>
The scoop 32 maybe dumped at any elevated
‘position by the actuation of the hand lever "56 to
1move the‘ latch 34 out of engagement with the
I catch 44 as was above fullydescribed. The dump
3ing movement of the scoop. 32 is limited by the I,
lation to the outside of the uprightframe mem
bers 62 and 63, respectively. Each guide member
15
I39 and I3I is of a pipe construction and is suit
ably secured at its upper'end, as by welding or
like means; to the transverse frame member 64.
A’ brace member I32, also of a pipe construction,
is welded between’ the lower end of an arm I30
and I3I and the lower end of a corresponding
upright frame member 62 and 63. The spaced
relation of the guide members I39 and I3I from
the corresponding frame members 62 and’ 63' is
such as to provide for their contact engagement
25 with the inner sides of the lifting arms l9 and 20,
and for a sufficient clearance relation of the
provision of a pair of lug members I65, welded
pulley I92 between the guide member 130 and
.or otherwise secured to the bottom of the scoop
‘ at a position forwardly of the scoop pivots 33, and
adapted to engage the under side of the arms I9
the frame member 62. It is seen, therefore, that
the guide members I39 and I3I thus stabilize the
lifting arms I9 and 29 against lateral movement
‘and 29 to stop a dumping movement of the scoop.
.A tension spring I10 (Figs. 1 and 4) connected at
ione end to the top transverse frame memberv 64,
at all lifted positions of the arms I9 and 20 over
and at its other end to a chain Ill vis passed under
‘a pulley I12 on the beam member 29 for connec
tion at I13 with the scoop ‘back wall 46; When
1the scoop 32 is dumped, its pivotal movement in
a clockwise direction, to a position at which the
lugs I65 engage the liftingarms, stores or builds
the distance de?ned by the length of the guide
members I39 and I 3|.
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Since the guide members I33 and I3I, as shown
35 in Fig. 1, terminate at a position above thefront
axle for the steering wheels I? each guide mem
ber I39 and I3I has a pivoted lower unit to pro
vide for a guiding of the lifting arms I9 and‘ 23
at all’ pivotally moved positions thereof. Each
lup a pressure in the spring I19. When-the load
.is dumped from the scoop the pressure thus stored
in the spring acts to return the scoop to its load
ing position at which the latch 34 is releasably
lower unit includes a sleeve member I33 rotat
ably supported on a vbrace member I32 and‘ex
tended between a guide member I30 and I3I and
a corresponding frame member 62 and-63 (Figs.
‘engaged with the catch 44. The spring and chain
4 and 11). Welded to the bottom side of the
‘assembly I19—I ‘(I thus functions to automatically
sleeve member I33 is a supporting plate I34 exé
return the scoop to a loading position. 7
tended in a spaced relation. below the lower'end
Since the cables 60 and GI are normally ex
of a guide member I 39 and I 3i. An extension
‘itended rearwardly from their corresponding
I36 for a guide member I33 and I3I is welded to
wpulleys 35 to one side of the plane of rotation of
the bottom side of a supporting plate I34 in ver¢
‘the pulleys 65, means are provided to guide the 50 tical alignment with an associated guide mem
‘cables 69 and SI for their movable support at all
ber. A'brace member I3? is welded between the
times on the pulleys 65. This means includes a
lower end of the extension I36 and the outer end
1guide member I26 carried on the rear side of a
I38 of the supporting plate I34. It is seen, there?
supporting plate 61 at a position adjacent the
fore, that the extension I36 is pivotally movable
outer end 'ofjsuch plate (Figs. 6 and 7). The
about the pipe member I32, as an axis, in a di
lower end I21 0f the guidelmernbenl26 is pro
rection forwardly and rearwardly of the tractor
jected below the level of the supporting plate 67
while ‘being retained at all times‘ in the vertical
}and is of an arcuate shape bent inwardly under. plane of an associated guide member I39 and I3I.
the supporting plate 61 so that the cable guiding
The pivoted lower unit is normally yieldablyv re
‘surface I23 thereof is in substantial vertical align (SI) tained in an upright position by the provision of
ment with the cable groove in a pulley 35. Thus
a tension spring I39 connected at one endade
when the cable 6|, for example, is inclined rear
jacent the inner end of a sleeve I33, and at its“
Zwardlyfrom the pulley v65 the guiding surface
opposite end to a bracket IdI projected outwardly
I28 retains the cable 6| in alignment with its
from a guide member I30 and I 3| at a position
ipulley 65, as illustrated in dotted lines in Fig. 7,
‘so that the rearward inclination of the cable 3i
terminates with the guide member I26.
spaced upwardly from the brace member I32.
The extension I36 in conjunction'with an as
sociated guide member I39 and I3I provides for '
On lowering of the scoop 32 by gravity, the _ ‘ the stabilizing of the arms I9 and 29 against lat
cables 63 and GI are unwound from the drums
eral movement for all pivotally moved positions
:28. The lifting arms I9 and 29, when the, scoop 70 of the lifting arms from substantially a ground
132 is dropped to its lowermost position, may have
level to vthe top of the upright frame; By virtue
the members 26 thereof 'in a partially extended
of the pivoted assembly of an extension I36 with
position. However, on loading of the scoop 32,
a guide member I39 and I 3| such extension is
by a usual bucking operation, the arm members
freely movable when it strikes an‘ obstruction or
426 are moved to their stop positions against the 75 the like in the path of advance of, the tractor, as '
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The members I58 are of a size to receive the for
ward ends of the lifting arms !9 and Ziltherein.
indicated in Fig. 12 for a pivotally moved posi
tion of the extension I36. The projection of the
The scoop 32 is pivotally supported on thefor
lifting arm guide means to a position substan~
ward ends of the lifting arms I»?! and 20 by means
tially adjacent the ground surface thus in no way
interferes with the travel of the tractor over Ol of the bolts 33 whichare extended therethrough
and through the side walls of the housing mem
rough or uneven ground while providing a guid
bers I58. Nuts ISI for the bolts 33 are positioned
ing action for the lifting arms I!) and 2f over
to the outside of the housing members and read
their full pivotal travel.
ily accessible from the inside of the scoop. The
As shown in Figs. 4 and 6 the cables 55 and GI
extend substantially vertically downwardly from
10 stop lugs I65, for limiting the dumping move
their corresponding pulleys 65 for wrapping about
the winding drums l8 and 8B. In other words,
ment of ;the scoop 32, are secured to the bottom
of the scoop and extended across the open bot
each
the other
otherina acable
straight
60 and
lineSIpath
passes
so from
as to one
be al
tom sides of the housings I58 forwardly of the
arms I9 and 2B. Skids I52 extended transversely
of the scoop to each side of a housing member
I58 slidably support the scoop for travel along
ways centered relative to a pulley 66 and a drum
the ground surface during a bucking operation.
even though a drum ‘I8 and 8B and an associat
ed pulley 85 are rotatable in planes normal to
It is seen, therefore, that the scoop is of a relae
tively large size for plowing and lifting snow and
drums 18 and 80 it is necessary that the drums 20. of a construction for ready assembly with and re
moval from the load-lifting arms I9 and 2%.
‘I8 and 8!) be rotated in a counter-clockwise di
From a consideration of the above description
rection, as viewed in Fig. 1, to wind the cables
it is seen that the invention provides a loading
thereon. Likewise the pulley I02 would be ro
attachment which is of a simple and rigid con
tated in a counter-clockwise direction as also
types
viewed in Fig. 1. Since the standard rotation of 25 struction and readily attachable to different
The assembly
the belt pulley $8 in commercial type tractors ‘ of available commercial tractors.
of the cables 60 and 6| relative to the telescoping
is generally in a clockwise direction, as viewed
lifting arms I9 and 20 provides for the function
in Fig. 1, the belt I03 for connecting the pulleys
of the cables not only to lower and to raise the
I8 and I 62 is twisted to provide for a reverse
lifting
arms, but to extend the arm membersv 26
rotation of the pulleys I8 and I02.
concurrently
with the elevation of the lifting arms
A belt tightener for the belt I63 (Figs. 9 and
‘I8 and 85. In order to provide for this assembly
of the cables 63 and BI with the pulleys 6t and
10) includes an idler roller, I52 rotatably sup~
ported between arm-s M3 supported in a spaced
relation on a sleeve member I463.
The sleeve
so that the scoop 32 is maintained ‘adjacent the
forward side of theupright frame at all pivotally
moved positions of the lifting arms. Further all
member I44 is rotatable about a shaft Hi5 hav
ing one threaded end I41 extended through a
of the control levers for dumping the scoop and
slot
and I48
an formed
opposite
in the
threaded
uprightend
frame
I59member
extended
and available atlall times.
through a slot I5! formed in a lug member IE2
secured to and extended rearwardly from the
guide member I35. Welded at one end to the
sleeve member I44 and extended forwardly from
the sleeve member is an arm member I52a hav
ing a tension spring I53 connected to its free end
i??. The opposite end of the spring I54 is con
nected to the free end of an arm member I55
which is secured to, and extended rearwardly
from, the frame memberv?'l. By virtue of the
pivotal support of the sleeve member I54 on the
shaft I46 the spring I54 acts to urge and yield
ably maintain the roller I42 against the bottom
side of the belt I83 as is clearlyillustrated in Fig.
9. The extension of the shaft ends I41 and M9
through the slots I48 and ISI, respectively, pro
vides for a tilting adjustment of the idler M2 rel
ative to the belt I53 to hold the belt against
operating the lifting arms are readily accessible to
the operator so as to be conveniently manipulated
7
Although the invention has been described with
respect to a preferred embodiment thereof it is
to be understood that it is not to be so limited
since changes and modi?cations can be made‘
therein which are within the full intended scope
of this invention as de?ned by the appended
claims.
Iclaim:
,
'
~
I
i
i
1. A loading machine‘ including a portable
frame and an upright frame carried at one end
of said frame, a pair of pivoted telescoped lifting
arms arranged at .opposite sides of said frame,
means pivotally supporting said arms at their
rear ends on said portable frame, with each’ of
said arms including a telescoping member mov
able forwardly of said upright frame, a load
, carrying unit, supported on the front end of said
telescoping members, flexible lifting, means for
said arms, means supporting said ?exible lifting
means at one of their ends adjacent the top of
tially centered position on the pulley I02. An ad
‘said upright frame, means connecting the op
justed position of the shaft I66 is maintained by
the tightening of nuts I56 threadable on the shaft 60 posite ends of said ?exible lifting means at posi
tions on said telescoping members such that when
ends I41 and I49 and against the frame member
axial travel on the pulley I02 and in a substan
62 and bracket I52, respectively.
The load-carrying unit 32 is illustrated in the
said arms are telescoped and in a lowered posi
tion, said flexible lifting means are inclined rear
wardly and downwardly from the top of said up
drawings as being a snow scoop, although it is
to be understood that a hay buck, manure scoop 65 right frame, and means for concurrently raising
and lowering said flexible, lifting means to piv
or the like may be substituted for the snow scoop
otally move said arms, said lifting vmeans, on rais
32. With reference to Figs. 2, 4 and 13 the snow
' scoop 32 is seen to be of a length substantially
equal to the transverse width of the tractor, and
to extend to the outside of the lifting arms I9
and 20. The back wall ‘it of the scoop 32 is
formed with a pair of longitudinally spaced for
wardly and downwardly inclined housing mem
bers I58 constituting hollow brace members con
nected between the back and bottom of the scoop.
ing thereof, being movable to positions substan
tially within the plane of said upright frame
whereby said telescoping members are extended
forwardly of said upright frame;
2. A loading machine com rising a portable
frame and an upright frame supported at one end‘ I
of said frame, a pair of pivoted telescoped lifting
arms arranged at opposite sides of said frame,
11
2,404,619
means pivotally supporting said lifting arms at
their rear ends on said frame, with a telescoping
member'of each arm being ‘extendible forwardly
of said upright frame, a pair of ?exible lifting
means corresponding to said arms, with each of
said lifting means being movably supported ad
jacent the top of said frame and connected with
a corresponding telescoping member at a position
12
on being elevated, acting to ‘move a corresponding
front member toward its extended position.
5. A loading machine comprising a portable
frame and an upright frame at the forward end
of said portable frame, a pair of pivoted lifting
arms arranged at opposite sides of said frame,
having their front ends projected forwardly of
‘said upright frame, means pivotally supporting
rearwardly of said upright frame when an arm is
the rear ends of said arms on said portable frame,
lowered and in a contracted position, and means 10 means for pivotally raising and lowering said
for concurrently raising and lowering said lifting
arms, means for guiding the pivotal up and down
means including a winding drum for each of said
lifting means rotatably supported on said upright
movement of said arms comprising a pair of up
said frame.
frame.
right guide members positioned at opposite sides
frame, with said lifting means, on raising of said
of said upright frame, pivoted extensions for the
arms, being movable toward a‘ position substan 15 lower ends of said upright guides, and means piv
tially Within the plane of said upright frame to
oting said extensions on said upright guides for
extend said telescoping members forwardly of
pivotal movement longitudinally of said portable
'
'
3. A loading machine including a portable
6. A loading machine including a portable
frame with an upright frame thereon, va pair of 20 frame and a pair of pivoted lifting arms arranged
pivoted arms arranged at opposite sides of said
at opposite sides of said frame, means for elevat- ‘
upright frame and pivoted at their rear ends on
ing and lowering said lifting means, means for
said portable frame, front members for said arms
guiding said arms against movement laterally
movable longitudinally of said arms to extended
of said frame comprising a pair of upright guide
positions forwardly of said upright frame, and 25 members positioned at opposite sides of said frame
means for elevating and lowering said arms'in
for contact engagement with the inner sides of -
eluding a pair of ?exible lifting means movably‘
said arms, pivoted lower extensions for said guide
members pivotally movable longitudinally of said
frame, and means for normally yieldably retain
supported adjacent the top of said upright frame, _
and connected with said front members at posi
tions ,rearwardlyvof said upright frame to pro 30 ing said extensions in upright positions.
I
vide for the extension of said front members con
'7. A loading machine comprising a portable
currently with the elevation of said arms.
frame and a pair of pivoted arms arranged at
4. A loading machine including a portable
opposite sides of said frame, a load carrying unit
frame and an upright frame at the forward end
pivotally supported-on the forward ends of said
of said portable frame, a pair of pivoted lifting
arms, a catch member extended rearwardly from
arms arranged at opposite sides of said portable
said unit, a transverse frame structure connected
frame, with each of said arms including a rear
between said arms rearwardly of said unit, a
member and, a front member movably, supported
pivoted upright latch pivotally supported on said
on a rear memberfor relative longitudinal move
frame structure for pivotal movement longitudi
ment ,to extended and contracted positions, a 40 nally of said frame, said latch having an opening
load-carrying unit supported on the forward ends
adjacent the upper end thereof adapted to receive
of said front members, means pivotally support
the free end of said catch member in releasable
} ing each rear member on said portable frame, a .
engagement, a transverse rock shaft on said
pair of ?exible lifting means for said arms, with
I ?exible lifting means being connected with a cor
frame structure having an upright radial member,
a rear extension on 'said latch slidably engage
‘ responding front'member at a position rearwardly ‘
' of said upright frame when said front member is
able with said radial member to provide for piv~
‘ ‘in a contracted position, means movably support
rocking movement of said shaft, means for rock
otal movement of said latch in response to a
ing said ?exible lifting means adjacent the top of
ing said shaft in one direction to release said '
‘ said upright frame including a pulley, means for 50 catch member from engagement with the latch
i retaining said flexible lifting means in operative ‘
at said opening, and tension means for rocking
‘ association with said pulley’ at all moved posi- 1
said shaft in an opposite direction to pivotally
‘ tions of said corresponding front member, and ‘
means for concurrently elevating and lowering
‘ said lifting means, with a ?exible lifting means,
move and yieldably hold said latch in a position
for engaging said catch member.
GILBERT E. COATS.
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