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Патент USA US2405114

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55g. 3,946.
Filed may 29, 1921-@
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Aug.6,1946. " _
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G.'E_.¢OÀTS
>~2,405,114
‘ -LoADING MACHINE
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Filed May 29', 1944'
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Aug. 6, 1946.
G. E. CoA-rs
LOADING MACHINE
Filed May 29, 1944
2,405,114
3 Sheets-Sheet 3
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2,405,114
Patented Aug. 6, 1946
UNITED STATES PATENT OFFICE
2,405,114
LOADING MACHINE
Gilbert E. Coats, Fort Dodge, Iowa
Application May 29, 1944, Serial No. 537,945
7 Claims. (Cl. 214-141)
1
2
This invention relates generally to loading ma~
chines and in particular to a machine for picking
up and stacking or loading hay, manure and like
supported between the extensible front portions
material.
uprights and on lifting O_f the flexible means the
front portions are extended to provide for an up
ward travel of the load-carrying means adjacent
to the uprights,
Yet another feature of this invention is found
in the provision of a tractor-mounted loading
machine in whicha load-carrying means is piv
An object of this invention is to provide an irn
proved tractor-loading machine.
A further object of this invention is to provide
a loading machine which is capable'of being easily
and quickly mounted on different types of farm
tractors and operated from the usual tractor
power take-off.
Yet another object of this invention is to pro
vide a tractor-mounted loading machine in which
the load is supported on extensible pivoted mem
of the arms. These front portions are connected
with a flexible lifting means depended from the
otally supported between the free >ends of pivoted
and liftable elongated members and provided
with an upwardly and rearwardly projected lug
member. A latch member is pivotally supported
bers and elevated by overhead lifting means in a
on and between the liftable members for move
substantially upright direction so that practically
all of the available lifting force is ehiciently ap
plied to lifting the load.
ment into and out of locking engagement with the
lug member, with the latch and lug members con
stituting the entire trip mechanism for the load
carrying means. The latch member is manually
A still further obj ect of this invention is to pro
vide a tractor-mounted loading machine which is
of a unit construction and readily removed from
and assembled on the tractor` so as to appreciably
decrease the over-all time for a loading operation
and in turn increase the availability of the tractor
for other farming operations.
Another object of this invention is to provide a
tractor-mounted loading machine which is of a
light weight and compactly assembled on the
tractor so as not to interfere with the operator’s
visibility whereby the normal operating economy
and ease of handling of the tractor is maintained
actuated through lever means and a pull cord
which is extended rearwardly of the tractor and
within easy reach of the tractor operator.
Further objects, features and advantages of this
invention will become apparent from the follow
ing description when taken in connection with
the accompanying drawings in which:
Fig. l is an elevational View of the loading ma
chine of this invention shown with a manure fork
and mounted on a tractor of usual type;
Fig. 2 is a front elevational sectional View of
the machine as seen along the line 2-2 in Fig. 1;
Fig. 3 is a plan view of the lower pivoted frame
during its use for loading purposes.
of the loading machine removed from the tractor;
A feature of this invention is found in the pro
Fig. 4 is a sectional view on the line 4_4 in
vision of a tractor-mounted loading machine in
which a pair of extensible lifting arms are posi L: In Fig. 3;
Fig. 5 is a sectional view on the line 5-5 in
tioned at opposite sides of the tractor and pivoted
Fig. 3;
at their rear ends for pivotal up and down move
Fig. 6 is a fragmentary plan view of the trip
ment. A load-carrying means is mounted be
mechanism for the manure fork;
tween the forward ends of the arms and is mov
Fig. '7 is a sectional view as seen along the line
able upwardly in guiding engagement with an up
right frame positioned between the forward ends
1_1 in Fig. 6;
of the arms. To accommodate the machine to
different size and type tractors means are pro
vided for adjusting the upward inclination of the
member used in the trip mechanism;
uprights and the position of the load-carrying
means in a substantially horizontal plane at its
lowermost position of travel.
Fig. 8 is a perspective view of an adjustable
Fig. 9 is a perspective View of an actuating rod
used in the trip mechanism;
Fig. l0 is an enlarged detail view of the clutch
and brake mechanism for the loading machine
as seen along the line Ill-I U in Fig. 1;
Fig. 1l is an elevational sectional view of the
A further feature of this invention is found in
the provision of a tractor-mounted loading ma
chine in which a pair of elongated arms having 50 clutch and brake mechanism as seen along the
line I l-l I in Fig. 10;
eXtensible front portions are positioned at oppo
Fig. 12 is an elevational View of the loading ma
site sides of the tractor and pîvoted adjacent their
chine, illustrated similarly to Fig. l, showing the
rear ends for up and down pivotal movement.
machine in changed position and with a buck
Uprights are supported on the tractor between the
arms and rearwardly of a load-carrying means ' rake;
2,405,114
3
Fig. 13 is a fragmentary plan view of the trip
mechanism for the buck rake;
Fig. 14 is a sectional view taken along the line
I4-I4 of Fig. 13; and
between the forward ends of the sleeve members
31 and 31a forwardly of the tubular beam 43,
and is welded at each end to the upper sides of
the sleeve members 31 and 31a. Supported on
Fig. 15 is a rear plan perspective view of the CR the transverse angle member dit, and substan
hay buck illustrated with the loading machine
tially intermediate its ends is an adjustable mem
in Fig. 12.
ber 45 which is movable to adjusted positions
With reference to the drawings the loading
laterally of the transverse angle member 44».
machine of this invention is illustrated in Fig. 1
mounted on a farm tractor of a usual type having
As shown in Fig. 8 the adjustable member "55
is of a substantially channel-shaped construction
a body frame or chassis 2l), rear wheels i6 and
having ilanges 41 projected outwardly from the
front steering wheels I1. The steering mecha
free end of each of its legs. Each flange 41 is
formed with an elongated slot ¿i5 which slots are
nism for the wheels i1 includes steering arms
I8 connected with a steering rod i3 through a
gear box 2l, the steering rod I9 being extended
toward the rear of the tractor and provided with
a suitable steering wheel (not shown) at its rear
adapted for alignment with corresponding elon
gated slots ¿lil provided in the transverse angle
member 45. Bolts 5l are receivable within a cor~
responding pair of aligned slots
and
with
the adjustment of the member 45 being accom
plished by manipulation of the bolts 5! in a usual
end. A usual power take-off, indicated at 22, is
mounted forwardly of the rear wheels.
The loading machine includes a lower pivoted 20 manner.
frame. comprised of a substantially U-shaped
Pivotally supported at one end on the leg 52
member 23 having its legs 24 positioned at oppo
of the adjustment member £36, and located within
site sides of the tractor frame 2B (Figs. 1 and 3).
the member
is an elongated latch member 53,
The U member 23 is of a tubular construction
which extends upwardly and outwardly from the
and has its base portion rotatably supported in 25 member
into an engaging position with a lug
bearings 21 which are carried on an inverted
or catch member 54 secured to the upper rear
channel member 28 suspended from a supporting
end of a manure fork 62. The latch 53 and the
structure located at> the rear end of the tractor.
catch 54 are shown in a closed position in Figs. 6
The supporting structure is comprised of a pair
and 7. The release or trip mechanism for the
of angle members 29 depended from each side 30 latch 53 includes an actuating rod 56 (Figs. 6 and
of the tractor frame 2U and connected together
9) having a rocker arm 51 carried at one end
at their lower ends by an angle member 3i, the
thereof with the arm 51 being of a bifurcated
channel member 28 being connected to and ex
construction at its free end 53. A lever 59 is
tended between the angle members Si.
mounted, intermediate its ends, at the opposite
Each bearing 21 is of a two piece construction 35 end of the rod 56.
with the mating halves secured together at one
The rod 56 adjacent the crank arm 51 is rotat
end and to the channel member 23 by a nut and
ably supported in an elongated slot 6! provided
bolt assembly 33 and at their opposite ends by
in an extension of the leg 62 of the adjustment
lock nuts 34 threaded on a brace rod 3B, which
member 45, with the arm 51 being located be~
will be explained later (Fig. 4) . By virtue of the 40 tween the legs 52 and 62 of the member 46. The
pivotal support of the U member 23, it is appar
bifurcated portion 58 on the arm 51 is slidably
ent from a consideration of Figs. 1 and 3 that
received on a pin 63 carried on the latch 53.
the leg members 24 are pivotally movable up and
The rod 5E extends longitudinally of the cross
down at opposite sides of the tractor frame.
member ¿36 and is rotatably supported adjacent
The leg members 24 arey in telescoping arrange 45 the lever 59 in a member 50 which is adjustably
ment with tubular sleeve, members 31 and 31a
supported on the angle member 44 in all respects
which are- movable to adjusted positions relative
similar to the adjustment member 46. In the
to the forward end of a corresponding leg mem
assembly of the trip mechanism the rod 55 with
ber 24 (Fig. 5). The movement of a sleeve mem
the rock arm 51 thereon, is extended through the
ber 31 and 31av in a direction rearwardly of the 50 adjustment members 45 and 6U prior to the
leg members 24 is deñned- by a stop pin 38 which
mounting of the lever 59 on the rod 56. The end
is receivable in aligned openings- 39 formed in a
10 of the lever 53 is pivoted to one end of an
spaced relationv axially of a leg member 24. It is
actuating rod 15, the other end of which is piv
thus seen that the sleeve members 31 and 31a
oted to the free end of a lever 8E), which is piv
are freely slidably movable relative to a corre
oted at 85 adjacent the rear end of the sleeve
sponding leg member 24 in a forward direction
31. A pull cord or cable Sil is connected to the
while their movement in a rearward direction is
free end of the lever Sil and extends toward
limited by their engagement> with the pins 38 for
the rear of the tractor to a position where it
a purpose which will becomeA apparent later on.
The forward ends 39a of the sleeve members 31
and 31a are bent fiat, as clearly appears in Fig. 3,
with each forward end having a bolt or shaft 4|
can be manipulated by the tractor operator.
As shown in Figs. 6 and 7 the latch 53 and
catch 54 are in locked position which is retained
by the action of a, spring 65 connected at one
end to the end 95 of the lever 59, and ait its
illustrated as a manure fork, in Figs. 1, 2 and 3,
other end to a guide plate 93 which is carried
is pivotally supported on the pins 4| between 65 on the sleeve member 31 and which will be later
the forward ends of the sleeve members 31 and
described. On pulling rearwardly on the cord
31a.
‘93, or to the left as shown in Fig. l, and against
With reference to> Figs. 3 and 6 it is seen that
the pressure of the spring 65, the levers 8U and
the forward ends of the sleeve members 31 and
553 are pivoted in counter-clockwise direction, as
31a are connected together by means including
also viewed in Fig. l, to in turn rotate the rock
a tubular transverse beam 43 the opposite ends
arm 51 in a counter-clockwise direction, as also
of which are flattened and then welded to the
viewed in Fig. 1,‘to in turn rotate the rock arm
underside of corresponding members 31 and 31a.
51 in a counter-clockwise direction as viewed in
A second transverse supporting member 44 of
Fig. 7. During this rotation of the arm 51 the
mounted therein.
A load-carrying means 42,
angle iron construction is inverted and extended
pin. 63, on the latch 53, is slidably engaged and
2,405,114
5
6
moved by the bifurcated end 58 of the rock arm
51, to in turn move the latch 53 out of an engaging
ing bolts 9| in a manner which is believed to
be obvious.
In the description of the lower frame unit,
position with the lug 54, thus releasing the ma
shown in Fig. 3, it was mentioned that the sleeve
nure fork 42. After the fork 42 is dumped the
members 31 and 31a were pivotally movable in an
lug 54 on the fork is returned to a locking posi
up and down direction at opposite sides of the
tion with the latch 53 by a spring 66 connected
tractor frame 20. The members 31 and 31a dur
at one end to a top member 51 of an upright
ing this pivotal movement, are guided for move
frame 68, and at its opposite or lower end to a
ment in a substantially upright direction by the
cable 69 which in turn is connedted to the manure
l() tubular uprights 14 which, as shown in Fig- 2,
fork 42 at 1| (Figs. 2 and 3).
are positioned adjacent the sleeve members 31
The cable 69 is associated for travel about the
and 31a and in a contacting relation therewith.
under side of a pulley 12 which is rotatably sup
As best shown in Fig. 1 the lower ends of the
ported in a bracket 13 carried on the transverse
uprights 14 are substantially at the level of the
tubular member 44. On dumping of the fork 42
axle for the front tractor wheels I1 so that they
the spring 66 is extended by the weight on the
fork, whereby its pressure is increased, and when
the fork is emptied this spring pressure is suiii
cient to pivot the fork upwardly into locking posi
tion with the latch 53. It is seen, therefore, that
the dumping of the fork 42 is manually con
trolled through the pull cord 90 while its return
to a latching position is accomplished automati
cally b=y the action of the spring 66 and the cable
69.
-adequately clear the ground when the tractor is
travelling over a rough ground surface. How
ever, when the fork 42 is in its loading position,
shown in Fig. l, the sleeve members 31 and 31a
20 are below the level of the lower ends of the up
The upright frame 68, previously mentioned,
includes a pair of tubular upright members 14.
The top- member 61, to which the spring 66 is
connected, constitutes the connecting or base
member of a U-shaped tubular member having
legs 82 each of which is adapted for telescopic ‘
assembly within fthe upper end of a corresponding
upright 14 (Figs. 1 and 2). Each leg 82 is formed
with a plurality of axially spaced oppositely
aligned openings 83 for receiving a stop pin 84,
whereby the U-shaped member is adjustably
movable upwardly from the top ends of the up
rights 14 and then held in an adjusted position
by the bearing engagement of the pins 84 with
the top of the uprights 14. By virtue of this ver
tical adjustment of the legs 82 the upright frame
is extendible over a wide range to provide for a
desired elevation of the fork 42.
The uprights 14 carry oppositely arranged sup
porting brackets 16 on their inner sides and ad
jacent their lower ends.
The brackets 16 are of
a channel iron construction and are welded to
corresponding uprights 14.
Each bracket 16 is
rights 14. In order to secure a travel of the
sleeve members 31 and 31a in a guiding rela
tion with respect to the uprights 14 each sleeve
member carries an upwardly projecting guide
plate 93 adjacent its forward end and at a Dosi
tion opposite a corresponding upright 14.
The pivotal movement of the lower frame of
the loading machine, and in turn an elevating of
the fork 42, is accomplished by means including
a cable 94 having one end connected to a yoke
96 which is pivoted at the upper ends of spaced
brackets 98, the lower ends of which are suitably
secured, as by welding, to the transverse tubular
beam 43 extended between the sleeve members 31
and 31a (Figs. 1, 2 and 3). From the yoke 96
the cable extends upwardly and over a pulley 99
rotatably supported between spaced plate mem
bers IOI projected forwardly of and welded to
the top member 61 of the upright frame 68.
From the pulley 99 the cable 94 travels down
wardly and about a pulley |02 rotatably sup
ported between the brackets 98 and then up
wardly and about a pulley |04 rotatably sup
ported between the plate members IOI rearward
ly of the pulley 99. From the pulley |04 the cable
94 travels to a winding drum |06 mounted on a
driven shaft |01 rotatably supported in bearings
|08 carried on the uprights 81 and 81a of the
pivotally supported at 11 to one end of a trans
verse beam member 18 which is secured to the 50 frame 86 (Figs. 1, 2 and 10).
Also mounted on the shaft |01 is a sprocket
forward ends of longitudinally extended members
|09 which is connected by a sprocket chain I|0
19, the rear ends of which are connected by bolts
to a sprocket |I| integrally formed on a sleeve
8| to the forward end of the tractor frame 20 so
member II3 which is freely rotatable on a driv
that the uprights 14 are pivotally movable to
ing shaft Il!! located below the shaft |01 and
gether in a plane longitudinally of the tractor
rotatably supported in bearings I I6 and II6a se
about their respective pivots 11.
Retention of the upright frame 68 in an ad
justed position is accomplished by means includ
ing a second upright frame 86 located rearwardly
of the upright frame 68 and comprised of a pair
of uprights 81 and 81a, of an angle iron construc
tion, secured at their lower ends to the longi
tudinally extending beams 19 and suitably sup
ported in an upright position by brace members
88. A U-shaped clamp 89 is pivoted on a clamp
ing bolt 9| art the top of each upright 81 and 81a..
Extended through each clamp 89 is an adjustable
rod 92 which has its upper end, as viewed in
Figs. l and 2, pivotally connected at 93 to the
top member 61 of the upright frame 68. On
cured to the uprights 81 and 81a, respectively.
Also integral with the sleeve member I I3 is a
shell member II1 which constitutes one of the
units in a friction clutch mechanism indicated
generally at | I8. The other clutch unit I|9 is
of a conical shape, adapted to be received in
frictional engagement within the shell I|1, and
mounted on the driving shaft II4. By moving
the clutch unit II1 axially of the shaft |I4 into
and out of frictional engagement with the clutch
unit I I9 power is transmitted from the shaft ||4
to the shaft |01 through the sprocket and chain
assembly |09-I I l.
This movement of the clutch unit |I1 relative
to the cone clutch unit ||9 is accomplished by
loosening of the clamping bolt 9| an adjustable
rod ‘92 is slidably movable within a clamp 89 to
portion |22 which is rotatable on the driving
provide for a free pivotal movement of the up
right frame 68 to a desired position. This posi
shaft |I4. The hub |22 is formed with a cam
surface |23 for operative association with a cor
tion is retained by merely tightening the clamp
responding cam surface |24 formed on the inner
a clutch lever |21 integrally7 formed with a hub ,
2,405,114
7
8
side-»of the bearing> member H6. As best shown
in Fig. 10 the bearing member H3, hub |22 and
ground is controlled entirely by the actuation of
sleeve member I|3 are in a stacked relation on
the driving shaft H4. Thus on pivotal move
ment of the clutch lever |2| in a direction rear
wardly of the tractor, or toward the left, as
viewed in Fig. 11, the sliding engagement of the
cam surfaces |23 and |24 moves the hub |22 and
sleeve ||3 toward the right, as viewed in Fig.
10, to in turn move the shell H1 axially on the
shaft ||4 into frictional engagement with the
cone H9.
Since the cone ||9 continuously ro
the clutch lever IZI.
In the assembly of the loading machine of this
invention on a tractor the sleeve members 31 and
31d are initially adjusted to an extended posi
tion relative to the forward ends of the leg mem
bers 24 until the transverse tubular beam 43 is
located forwardly of the uprights 14. When this
adjustment of the sleeve members 31 and 31a has
been determined the pins 33 are inserted in the
leg members
to limit the rearward movement
of the transverse member 43 such that it is always
tates` with the driving shaft H4 this frictional
engagement of the units í i1 and H3 connects the
shaft |01 with the shaft | i4 through the sprocket
and chain assembly IUS-Hi.
carries a pulley |26 which is connected through
located forwardly of the uprights 14 when the
sleeve members
and 31a are in a fully retracted
position, it being understood that the retracted
position
the members 31 and 31a is deñned by
their engagement with the pins 38. By virtue of
a belt |21 with the power take-oir 22 (Fig. l) .
this adjustment the lower frame is readily appli
cable to tractors of different type regardless of
The connection and disconnection of the shafts
|01 and ||4, and the retention of the fork 42 at 20 their length and the location on the tractor frame
any elevated position, is controlled entirely by
of the pivot for the lower frame, which includes
the manipulation of the clutch lever l2! in a
the members 31' and 31a. With the sleeve mem
bers 31 and 3156i thus adjusted the manure fork
manner now to be described. With reference to
Figs. 10l and 1l the lever |2| is shown with its
/52 is pivotally adjusted on its pivots 4| until the
upper or free end pivoted to an actuating rod f
|28 which extends toward the rear of the tractor
and to a position conveniently accessible to the
tractor operator. Pivoted at one end to the lever
|2|, and substantially intermediate the ends of
fingers E455 thereof are located in a substantially
horizontal
as shown in Fig. 1, This ad
justment of the fork 42 is accomplished by adjust
the members 4.55 and
relative to the trans
verse angle beam
to in turn vary the position
of locking engagement between the latch 53 and
the latch
With the fork 4?. thus positioned
the tractor is advanced forwardly for loading the
the lever |2|, is a link |29v the opposite end of
which is pivoted at |3| to a bell crank |32 cf
an angulate shape.
fork
On the application of a pressure on the
The bell crank arm |33, to which the link |253
manure fork 4?.. in a direction toward the rear
is pivoted, is of a substantially 'L_-shape having a
shaft portion |34 extended laterally from the free 35 or the tractor the movement of the sleeve mem
bers 3”? and Ela rearwardly of the leg members
endk of its short leg. Shaft l‘34 is rotatably sup
and in turn the movement of the beam mem
ported in a bearing í 36 mounted on an angle iron
er
toward the uprights 14, will be limited by
member i 31 extended between the frame mem
the stop pins 3|?.
bers "59 andbel'ow the uprights 81 and 81a. The
On raising of the fork F52, by manipulation of
other leg |33 of the bell crank |32 is extended 40
the clutch lever i 2i in the manner fully explained
forwardly _from the shaft portion |34 and then
above, the uprights 14 are in contacting engage
laterally parallel to and away from the shaft por
ment with the sleeve members 31 and 31a. As the
tion |34. A brake band |39 is positioned about
fork 42 is elevated the sleeve members 31 and 31a
the upper half of the clutch unit l | 1 and has one A
are
progressively extended forwardly of the leg
end 34| pivoted to the free end of the arm |33
members
When the fork 42 has been elevated
and an opposite end |42 pivoted on a bolt |43
to a desired position it is dumped by actuating
secured to the angle member |31.
the lever 8€! for the latch release mechanism, and
The brake |38 is normally held in irictional
then returned to a loading position by the action
engagement with the clutch unit ||1 by a spring ,.
or the spring 66, On lowering of the fork 42 it
|144 connected at one end to the upright 81 and
may drop to the ground in a position consider
at its opposite end to the ~free end of the bell
ably ahead of the upright frame Eil, in other
crank arm |33. On actuation of the clutch lever
words at a position in which the rear ends of the
|2| in a direction toward the rear of the tractor,
sleeve members 31 and 31a are forwardly of the
or in a counter-clockwise direction, as viewed in
stop pins 33. However, on movement of the trac
Fig. 1:1, the bell crank |32 is moved in a counter
tor forwardly to again load the fork 42 the sleeve
clockwise direction by the link |29, to in turn
members 31 and 31a. are initially moved against
move the brake band |39 upwardly at its end |4|,
the stop pins 33 to provide for a normal loadintf
This movement of the brake band |33 releases its
position. of the fork 42 adjacent the uprights 14.
frictional engagement with the Clutch unit ||1. 60
As a result the fork is always adjacent the up
With the clutch unit ||1 thus released, the fork
right frame et’ when it is initially raised whereby
42 is free to move downwardly from any elevated
to decrease the tendency of the tractor rear
position due to the action of gravity. On a con
wheels l5 being lifted from the ground during a
tinued movement of the clutch lever |2| in a
raisinsT operationl Further the fork is substan
counter-clockwise direction the cam surfaces |23 65 tially below the cable support EEN so that a direct
and |24 are relatively moved a distance sufficient
lifting force is applied on the fork. The pressure
to frictionally engage the clutch unit | i1 with the
acting rearwardly on the sleeve members 31 and
clutch unit H3 in the manner above fully de
31a and legs 24 during a loading and lifting oper
ation of the fork
is applied on the brace rods
scribed..
When the clutch lever |2| is released the brake 70 33 which are connected at one end to the bearing
band |39 is immediately moved into braking posi
straps 21 and at their opposite ends to the tractor
tion with the clutch unit | |1 by the action of the
frame 2|?.
When the fork 42 i5 elevated it follows an up
spring |44-, It is thus seen that the elevating of
ward path determined in part by the inclination
the fork 42, its retention in an elevated position,
and its release for falling downwardly to the 75 of the upright frame 68 relative to a vertical plane
2,405,114
10
extended transversely of the tractor. As the fork
42, therefore, is elevated it will be moved up
Wardly concurrently with an extension of the
sleeve members 31 and 31a. This extension of
the sleeve members 31 and 31a is the result in
itially of the load-carrying means 42 tending to
assume a position vertically below the support |0|
for the cable 94. However, as the load-carrying
means approaches its uppermost position a slid
` able engagement may occur between the tubular
cross beam 43 and the fro-nt sides of the uprights
The back of the hay buck includes upright
angle members |62 welded to the rear leg of each
strap |52. Back boards |60 are secured to the up
rights |62 in a vertically spaced relation above the
rear cross beam |5|. Secured to the top of the
beam |56 and to the four center straps |52 is an
angle brace |63.
Welded between the rear legs of the inner pair
of the four center straps |52 is an inverted chan
nel member |64, to the top of which is Welded a
lug or catch member |66 (Figs. 14 and l5). Brace
bars |61 for the catch member |66 are welded to
the catch and to the inner pair of the four center
straps |52. La-terally extended from each rear
14. When this slidable engagement takes place,
therefore, the extension of the members 31 and
31a is primarily the result of the slidable engage
ment between the member 43 and the uprights 14, 15 leg of the outer ones of the four center straps is an
angle iron support |68 for an adjusting bolt |69.
Under some conditions of operation the slidable
Each of such outer straps also has a spacer plate
engagement between the cross beams 43 and the
uprights 14 may approach proportions such that
| 1| welded to a corresponding brace plate |55, with
an excessive side pressure is applied against the
an opening |12 being formed through a corre
upright frame 68 as well as an increase in the 20 sponding spacer plate |1| and brace plate |55 for
force required to raise the fork 42, due to the re~
a purpose now to be described.
In the assembly of the hay buck |50 on the
sultant frictional pressure between the cross beam
43 and the uprights 14. To reduce this fi‘ictional
pressure as much as possible, when the load
loading machine, and assuming the manure fork
42 removed from the loading machine, the for
ward ends 39a of the sleeve members 31 and 31a
carrying means 42 approaches its uppermost posi
tion, the upright frame 68 is adjustable in a di~
are moved within the spaces |51 to positions ad
rection rearwardly of the tractor so as to permit
jacent the spacer plates |1|. A bolt 4| is then
a greater travel upwardly of the load-carrying
extended through the end 39a of a sleeve mem
means 42 before any appreciable contact takes
ber and through an opening |12 in a correspond
place between the cross beam 43 and the uprights 30 ing spacer plate |1| and brace plate |55. With
14.
the hay buck thus pivotally supported on the
When the tractor with the loading machine
sleeve members 31 and 31a its upward pivotal
thereon is to be moved from farm to farm or over
movement is limited by the adjustment of the
the highways the upright frame 68 is inclined to
bolts |69. These bolts are in an engaging posi
a maximum position toward the rear of the trac
tion with ledge portions or plates |13 Welded to
tor so as to appreciably decrease its over-all
the tops of the sleeve members rearwardly from
height. The fork 42 is then elevated to a position
their forward ends. It is thus seen that the en
above the tractor frame 20 so as to have suñicient
gagement ,of the bolts |69 with the plates |13
clearance with the ground. By virtue of the lo
prevent the front end of the tines |58 from tilting
cation 0f the clutch and lifting mechanism sub~
upwardly when the hay buck is being loaded.
stantially ahead of the tractor, and with the up
On completion of this adjustment the latch 53
right frames 68 and 86 being of an open con
is moved into an engaging position with the lug
struction adequate visibility is provided to the
member or catch |66 by adjustment of the mem
tractor operator, and the upright frame 68 is low
bers 46 and 60, in all respects similar to the ad
ered enough to freely clear any of the usual over
justment of the latch 53 as described in connec
head obstructions such as telephone and electric " tion with the manure fork 42 (Figs. 13 and 14).
wire lines.
The operation of the loading machine with the
With reference to Fig. l2 the loading machine
hay buck |50 is similar in all respects to its op
of this invention is shown with a hay buck in
eration as described above in connection with the
dicated generally at |56. Except for the hay buck
the loading machine is the same in all respects as
previously described so that similar numerals of
reference will be used to. designate like parts in
Figs. l2, 13 and 14.
With reference to Fig. l5 the hay buck |50 in
cludes a frame comprised of a rear cross member
|5| of a tubular construction having substantially
inverted U-shaped straps |52, illustrated as eight
in number, supported on the beam |5| in an
axially spaced relation. The legs of each strap
|52 below the beam |5| are connected together by
a brace plate |55- Secured to the bottoms of the
forward legs of the straps |52 and substantially
coextensive in length with the rear cross member
|5| is a wooden beam |53. Connected to the bot
toms of the rear legs of each outer pair of straps
|52 is a wooden beam |54, and connected to the
bottoms of the rear legs of the four center straps
|52 is a wooden beam |56 so that spaces |51 are
formed at the back end of the hay buck |50 be
.tween adjacent ends of the beams |54 and |56. “'
The tines or prongs |58 of the hay buck are at
tached to the bottom sides of the wooden beams .
|53, |54 and |56. A wooden side guide |59 is
supported at each end of the rear beam |5| in an
angle member |6| welded to the beam | 5|.
manure fork 42 so that a further description of
such operation is believed to be unnecessary.
From a consideration of the above description
it is seen that the invention provides a loading
machine which is comprised of relatively few
parts adapted for -compact assembly on any type
of tractor. The support of a load-carrying means
on extendible pivoted members 31 and 31a pro
vides for the load-carrying means always being
in a position for direct lifting by an overhead
lifting means, and for travel upwardly concur
rently with an extension of the extendible mem
bers. The upright frame 38 on which the lifting
means is supported is adjustably movable to in
clined positions in a direction forwardly and rear
wardly of the tractor so as to provide for the lift
ing cf the load-carrying means with a minimum
of interference from the upright frame. As a
result the extension of the extendible pivoted
members 31 and 31u is substantially accomplished
entirely as a result of the lifting force applied at
their free ends 39a. '
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 modifications and changes can be made
2,405,114
ll
12
therein which are within the full intended scope
of this invention as defined by the appended
tioned at opposite sides of the tractor, means
pivotally supporting said frame units at their rear
claims.
ends on said tractor for pivotal movement in an
up and down direction, with the front ends of said
frame units being extendible forwardly of said
frame units, load-carrying means mounted on
said front ends, a first upright frame pivoted on
said tractor between said frame units and rear
wardly of said load-carrying means, a second up
right frame on said tractor rearwardly of said
I claim:
1. A tractor-mounted loading machine com
prising an upright frame supported on the trac
tor, telescoping members positioned at opposite
sides of the tractor, means pivotally supporting
said telescoping members adjacent their rear ends
on said tractor for up and down pivotal move
ment, with said upright frame being positioned
between the front ends of said telescoping mem
bers and said front ends extendible forwardly of
said upright frame, load-carrying means mounted
on said front ends forwardly of said upright
frame, flexible load-lifting means supported fro-m
said upright frame and operatively connected
with said front ends to raise said load-carrying
means, means for raising and lowering said lift
ing means, and a frame member connected be- ä
tween said front ends adapted to contact the
forward side of said upright frame, on upward
pivotal movement of said telescoping members,
-to provide for the extension of said front ends
as said telescoping members are elevated.
A loading machine adapted to be mounted
on a tractor frame .comprising an upright frame
supported on the front end of said tractor frame,
a pivoted lower frame of substantially U-shape
having the legs thereof arranged at opposite sides
of said frame, and the leg-connecting portion
extended transversely of the tractor frame and
below the rear end portion thereof, means sus
pended from said tractor frame for pivotally sup
porting said leg-connecting portion to provide
i'or a pivotal up and down movement of said legs,
a load-carrying means mounted on the free ends
of said legs forwardly of said upright frame, and
flexible lifting means depended from adjacent
the top of said upright frame and operatively
connected with said legs to lower and raise said
ñrst upright frame, means pivotally supporting
said first upright frame for pivotal movement
longitudinally of said frame units to an adjusted
position, adjustable means connected between
said first and second upright frames for support
ing said first upright frame in an adjusted posi
tion, means on the front ends of said frame units
for contacting said first upright frame to guide
the pivotal movement of said frame units, and
flexible lifting means depended from adjacent
the top of said ñrst upright frame and operative
ly connected with said front ends to raise and
lower said load-carrying means, with said front
ends being extended forwardly, as said load-car
rying means is lifted, to provide for the travel of
said load-carrying means upwardly adjacent said
first upright frame.
5. In a loading machine for mounting on a
tractor frame, a U-shaped frame having the legs
thereof positioned at opposite sides of the tractor
frame and extended outwardly beyond one end
'lierecí load-carrying means supported between
the free ends of Said legs, bearing members sus
pended from said tractor frame for rotatably
supporting the leg-connecting portion of said U
fra-me, means for pivoting said U frame to elevate
said load-carrying means, and means connected
between said bearings and said trac„or frame to
support said bearings against the pressure ap
plied thereon by a load on said load-carrying
means.
load-carrying means.
3. In a tractor mounted loading machine, a pair
6. In a loading machine for mounting on a
tractor, an upright frame located at one end of
said tractor comprising a pair of tubular uprights
of pivoted members at opposite sides of said
tractor, means pivoting said members adjacent 45 supported on said tractor, an inverted substan
their rear ends on said tractor for pivotal move
ment in an up and down direction, means opera
tively connected with the forward ends of the
pivoted members to raise and lower said forward
ends, load-carrying means pivoted between the
forward ends of said pivoted members, a lug
member projected rearwardly and upwardly from
said load-carrying means, a latch member, means
supported between said forward ends for adjust
able up and down movement, means pivotally
supporting said latch member on said adjustable
means for pivotal movement into and out of re
tially U-s‘naped member having the legs thereof
receivable within the top ends of said uprights
for telescopic assembly therewith, means for hold
ing said U-shaped member in an extended posi
tion from the top ends of said uprights, and a
flexible lifting means supported from the leg
connecting portion of said U member and opera
tively connected with a load-carrying means.
'7. In a loading machine, a buck rake includ
ing a rear cross member, means for lifting said
buck rake, a plurality of inverted substantially
U-shaped members suspended from said rear
leasabie locking engagement with said lug mem
member and spaced longitudinally thereof, a cross
ber, with adjustment of said adjustable means
beam connected to the forward legs of said U
providing for the adjustment of said load-carry 60 members, support members connected across cer
ing means relative to the ground surface, a pin
tain of the rear legs of said U members in a
member extended laterally from said latch mem
linearly spaced relation across the rear end of said
ber, means for releasing said latch member in
buck rake, tines connected to said cross beam
cluding a rock shaft extended transversely of said
and support members, a side guide connected to
pivoted members, an arm carried adjacent one
end of said rock shaft slidably engageable with
said pin member, and a manually operated lever
mounted on said rock shaft adjacent its opposite
each end of said rear member, and means located
at the central portion of said cross beam and inw
cluding a pair of said U members for pivotally
supporting said buck rake adjacent its rear end
end.
on said lifting means.
4. A loading machine for mounting on a tractor 70
GILBERT E. COATS.
comprising a pair of telescoping frame units posi
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