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Патент USA US2387087

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Oct. 16, 1945.
2,387,087
w. o. NELSON I
nols'r
Filed NOV. 50, 1942
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Oct. 16, 1945.
w. vo. NELSON
,
2,387,087
HOIST
Filed Nov. 30, 1942
4 Sheets-Sheet 3
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2,387,087?
Patented Oct. 16, 1945
‘UNITED STATES "PATENT OFFICE
§_
HOIST
Walter 0. Nelson, Oslo, Minn., assignor of one
half to Howard‘E. Baker, Chicago, Ill.
Application November 30, 1942, Serial No. 467,443
16 Claims.
(Cl. 212-66)
Another object of this invention istoprovidé
This invention relates to a crane or hoist for
hoisting and moving bodies and more particu
a hoisting device having a turn-table that may
be levelled.
larly to a crane or hoist attachment for a port
able power unit, such as a motor vehicle, a trac
tor, a truck and the like.
»
Numerous attempts have been made to provide
5
Another object of'this, invention is tov provide
a self-contained hoist provided with wheels or
bogies adapted to automatically align them
an attachment to a tractor or a truck, so as to
selves with the direction of draft.
convert the tractor or truck into a hoisting de
vice. These attempts, as far as known, broadly
a hoist having a counterpoise. oppositely dis
consist of a hoisting mechanism superimposed
upon or ?xedly attached to the chassis of the
Another object of this invention is to provide
posed with respect to the weight.
,
,.
Other objects and, advantages reside in the
construction of parts, the combination_'thereof
and the mode of operation, as will become more
tractor or truck, as-the case may be, either with
or without braces or props for supporting the
hoisting mechanism when in use. In the
apparent from the following description. ‘
' .7
absence of braces or props, such hoisting devices 15
In the drawings, Figure 1 is a top plan View of
have very de?nite limitations, in that if an at
tempt is made to lift the bodylocated on the
the hoisting device attached to a tractor shown
side of the tractor or truck, the tractor or truck,
Figure 2 is a side elevational view of the de
together with the hoisting device, will become
schematically.
'
vice shown in Figure 1.
'
'
.
"
'
'
"
overbalanced unless the weight of the body and 20
Figure 3 is‘ ‘a fragmentary, cross sectional '
its location is such that the center of gravity is
view taken substantially on the line 3—3 of Fig’
located above and within the area bounded by ' ure 1.
the supporting wheels.
'
,
I
Figure 4 is a fragmentary, detail view of a
The term “tractor” is used throughout the
portion of the device taken on the section‘ line
speci?cation to designate any motor vehicle such 25 4--4 of Figure 1.
v
'
as a farm tractor, a caterpillar, a truck, an auto
Figures 5 and 6 disclose top plan and. side
mobile or any other motor vehicle that is adapt
elevational ‘views respectively of a modi?cation.
ed for use with the hoisting device shown and
Figure ,'7~is an enlarged view of'the control
mechanism with parts shown in section.
' “
An object of this ‘invention is to provide a 30 ‘ ' Referring to the drawings, the reference char
, self-supporting hoisting device adapted to be
‘acter “indicates the chassis of a tractor pro
attached or hitched to a motor vehicle, such as
vided with 'a suitable motor I2, a pair of drive
described.
_
'
a tractor or a truck.
Another object of this invention is to provide
wheels l4, guiding wheels I6, which maybe re'-'
ferred to as the front wheels, and a conventional
a hoisting device wherein the dimensions are so 35 steering wheel l8, manually controlled bylthe
proportioned that the weight of the tractor or
operator seated in the seat Hi. The details of
motor vehicle may be used as a counterpoise
the tractor will not be described in their on
while hoisting.
’
'
tirety. Only such portions thereof will be de
Another object of this invention is to provide
scribed as necessary to fully understand the 0D
a self-supported hoisting device wherein the
veration of the hoisting attachment.‘
wheels of the hoisting device have a spread
The frame of the hoisting'device includes a
greater than the distance between the wheels
pair of longitudinally extending‘thill-like frame
of the motor vehicle.
members 20 and 22. The rear ends of members
Another object of this invention is to provide
l2!) and 22 are interconnected by an angle bar’ 24
a ?exible attachment between the self-con 45 attached to the draw-bar 26' of the tractor- by
tained hoisting device and the motor vehicle,
means of a bolt 28. The front ends of members
so as to accommodate unevenness of the ground.
20 and 22 are supported upon a vpair 'of trans
Another object of this invention is to provide
verse frame members 30 and 32, so shaped as to
a pusher type self-contained hoisting device, so
form a substantially diamond-shaped frame.
that the hoisting device is located in front of 50 The ends of the transverse frame members 30
the tractor and towed or pushed from ‘the draw
and 32 are held together by a pair of trapeaoidal
bar to the rear of the tractor.
_
plates 34 and 36, one ‘being located above and
Another object of this invention is to provide
one below the transverse frame ‘members 30 and
a self-contained hoisting device that is energized
32. A pair of links 40, one on ‘each side, ?xedly
from the motor of the tractor.
55
attached to transverse frame member 32, are
2
2,387,087
connected by a pivot or a bolt 42 to thill-like
members 20 and 22. Transverse frame member 30
is connected by a turnbuckle including a collar
43 and a screw 44 threadedly engaging a nut 46
attached to the forward end of thill-like frame
members 20 and 22. By adjusting the screw 44,
it is possible to raise or lower the transverse
member 30 with respect to the forward ends of
lar I06 and terminating in a crank arm I08
the thill-like members 20 and 22,}for the purpose
of leveling’thelhoisting devicepas will; appear
arms I10 are attached to one endhofa chain H4
hating the ‘opposite end‘rattachedijto the gear
adapted to be manually adjusted, as shown in
Figure 1.
Instead of a crank arm I08, a wheel
I09, as shown in Figure 2, may be used. The
collar I06 is mounted upon a pair of supporting
arms IIO, pivotally attached to brackets II2
?xedly attached to the gear ring 80.
As may best be seen by referring to Figure 2,
ring "80. “From""this it"‘ca'n readily be'seen that
more fully'later. "The trapezoidal'plates 34 ‘and
36 are provided with apertures receiving shanks.
50 ?xedly attached to forks 52 supporting suit‘
by tightening the crank arm I08 shown in Figure
11, the outer end of the boom will be raised, in that
;;.the distance from the end of members [ID to the
able axles or spindles 54, having‘ journalled there
on the bogie wheels 56. The shanks 50 are free to ‘i5 end of members I00 is shortened. This distance
rotate in the apertures in the?trapeaoidalplates ‘- - iimaylbe lengthened by unscrewing the screw I04,
‘thereby dropping the outer end of the boom, and
vice versa.
As is clearly shown in Figure 2, the outer end
of the boom also supports a clamp £20, having
34 and 36. In order to provide: proper‘clearance
for the wheels, suitable spacing members 581are '
positioned between the upper end of the forks 52
and the lower trapezoidal plate 36. This ar-'
rangement -permitsthe wheels to align them
selves -with:the direction of. draft.
In order to maintain proper alignment be
.?xedly attached thereto the endrof. .acable I22
carrying a suitable sheavev I24. providedwith- a
hook I26,.orany other suitable.implement forat
' tween-the tractortand the frame of the hoisting
edevicetthe f-ramermembers 20 and 22 are inter
connected to the front end of the tractor by ?ex
25
taching to the object tobe hoisted-and passing
over a sheave I28 rotatably mounted upon a.suit.'
able pintle near the. outer-end of the boom. The
ible means such. as a pair-ofv chains:60. One end
cable I22extends to the center of the device,
- of-one- of these-chains isconnected through a
whereit passes over asheave IZSsuppOrtedby-a
helical-.spring-?z“to/the thill-like frame member
chain I21 ?xedly attached-between members H0.
‘The cable I22, after leaving the sheave I25, is
wrapped around a drum I33. This drum may be
driven in any suitablemannen'as will ‘appear
20. The oppositeendeof this. chain 60 is con
nected byr-asuitable hook 64 to the front. end of
the tractor. -. One endof the other chain is con
nectedthrough a’ spring 62 to the thill-like frame
member .22. lTheropposite end of this chain is
more fully‘ from the description that follows. -
In the preferred embodiment the motor (of the
connected :byI-a like hook-64m the forward end of 35 tractor has been “utilized as. a Vprime'mover »for
actuating the hoisting device. In'theevent the
the. tractor.
V
The transverse supporting members30 and 32
have-.?xedly sattachedhthereto -a :plurality of
brackets 10 supporting the flanges of the circular
race-or track 12. This .race 12 is substantially T
hoisting device is attached to an automobile or» a
truck, ' it ‘may. be. ‘feasible to. provide a1 separate
primermover mountedon the hoisting device to
4,0 drive the hoisting device through- its several move
shapcd ‘in >transverse.~.~.cross I sectional area, the
ments. Such azmotor may be a gasoline-engine
?anges of the T forming the outer ring portion
or any other suitable type of engine. ‘An electric
motor may be used in the. event thec‘hoisting
andthesstem- or .thewebof the T forming an ‘in
.yvardlyidirected race portion. :In addition to the
device is to be usedwhere ele‘ctricityis available.
,A shaft I50 driven from the engine has mounted
brackets 10 supporting the race 12,- a pair of op- ,‘ thereon a sprocket vwheel I52driving'a chain I54
.positely-vdisposed(brackets 14-are supported upon
.trainedover a sprocket wheel -I 56 ?xedly attached
av transverse member 16. spanning the , distance
to a stubshaft I58 journalled
a suitable bearing
abetweenwthe-transverse members 30 and 32 and
I60. The stubshaft I58 is connected to'a square,
fixedly attached thereto.
'
hollow shaft I62 through a universal knuckle or
.The: :racen12 supports ‘an internally threaded ’
joint I64. A square shaft? I66 has one end pro_
gear ringv80nthat- functionsas a turn-table for
jecting into the square, :hollow vshaft I62 and
.ther,hoisting device. This internally ‘threaded
drives a universal knuckle or joint I 68 connected
.gear'tring‘ 80 isv provided‘ with a ‘plurality ‘of
to a grooved pulley wheel I10 mounted on a suit
ibracketsr? supporting‘ bevelled rollers 84 for
able stubshaft I14 journalled in a universal bear
supportingrthegearring upon the race 12. These
ing I12.’ This stubshaft I14 ‘is also journalled in
rollers-64 engage the race so as to permit" easy
adjustment of the internally .threaded'gear ring
an eccentric bearing, not shown, adapted to be
.80. :There- are. rollers‘b'oth above‘ and below the
.welmof member 12, so that "in theevent weight
rotated in a clockwise or a counterclockwise di
is supplied to the‘hoist', the‘gear ring 80 will not
tip out ‘of position. ‘It is held‘ by these rollers
arranged'in‘pairs,'oneabove and one below the
vweb.
-
.
‘ The gear ring ‘180- also has I?xedly attached
-rection,.scas to shift the end of’ the shaft I14
to theiright or to the left, as viewed from ‘the
‘operator's seat shown in Figure l. The end of
:the shaft ‘I14'carries a conicalfriction drive mem~
her I 80 positioned between a pair of bevelled driv
in'g-discs I82 and'l84. These‘discs' are ?xedly
thereto a pair'of'brackets 86 having pivotally I’; attached to the drum I30. " When the conical drive
member ~I B0 is positioned directly between the two
attached thereto a pair of boom or crane mem
bevelled discs, ‘so 'as to be equally spaced from
bers-90 joined atSZ-inany‘suitable manner, as
each of the discs, it is in the neutral position and
[by rivets, bolts or welding. A pair of hooks 64,
,oneron eache'side of the outer end of the boom,
no movement is transmitted vfrom the engine to
vsupportschains 96 attached at 90 to‘ a pair of ' ‘the’ drum I30. If the eccentric bearing is rotated
~:arms.-or-supports 100' attached in any suitable
in either a clockwise or a counterclockwise direcé
tion, the end of the shaft I14 and with it the con
.manner 1to the- geari ring 80, as for example, by
ical driving member 'I 80 is actuated to the right or
:brackets ' .IOI. These‘ supports 500 are ?xedly
tozthe left, as viewed from the driver’s seat, as
attached-to an internally threaded tubular mem
shown in Figure lyso as to cause the conical fricé
ber L02 receiving ascrew I04 journalled in a col
2,387,087
tion drive member I80 to engage the disc I82 or
I84, as the case may be. When the conical fric
tion drive member I80 engages the disc I82, the
drum is rotated in one direction and when it en
gages the disc I 84, the drum is driven in the oppoa
site direction. By this arrangement, it is possible
to drive the drum in either direction without
changing the direction of rotation of the driving
mechanism supplying power from‘the engine to
3
heavier loads'm'ultiple sheaves orpulleys may be '
used, so as to multiply the mechanical‘ advan
tage.v
‘
'
*>
t
'
A counterpoise 240, shown inxiFigure' 2;. but
omitted from Figure 1 for the purpose-of clear
ness, is mounted upon the supporting member
244, which is attached to the gear ring 80 and
supported thereon by a bracket 242. The coun
terpoise 240 is diametrically disposed at all
the bevelled disc I82 or I84, as the case may be. 10 times with respect to the load. This counterpoise
When the drum is rotated so as to wind the cable
has two advantages. It tends to ‘balance the load
upon the drum, the load is hoisted.v When the
drum is driven in the opposite direction so as to
unwind the cable, the load is lowered, as is well
known to those skilled in the art.
1'
The eccentric bearing, not shown, may be ro
tated in a clockwise direction or a counterclock
and it reduces the stresses placed'upon the gear
ring 80 and the parts associated therewith.
Whenever the boom or crane is pointed ahead
and aligned with the longitudinal axis of the
tractor, the tractor functions as a counterpoise,
glaced at the ends of the long thill-like mem
wise direction by actuating a control mechanism
ers.
including a lever I90 having forward and rear
When the hoisting device is transported from v
ward movements. The lever I90 is pivotally at 20 one place to another or when it is not in use.
tached to abracket I92 supported upon the thill
the boom is vpreferably rotated so as to be aligned
like member 20. The lever I90 is connected to
with a boom supporting structure 250 mounted
a rod I 94 having one end attached to a bell crank
upon the thill-like member 22. This boom sup-.
lever I96 having one arm attached to a lever I90
porting structure includes a standard 252 and a
connected to the eccentric bearing not shown. 25 diagonally disposed brace 254.
' .
When the lever I90 is pushed forwardly, the ec
1 In Figures 5 and 6 a modi?cation has'been
centric bearing is rotated in one direction from
shown to illustrate the adaptation of the princi
neutral position. When the lever I90 is pulled
ples described above to alight weight manually
rearwardly, it actuates the eccentric bearing in
manipulated crane or hoist that may be powered
the opposite direction. Instead of friction drive 30 with a light weight air cooled gasoline ‘engine
mechanism, suitable gear mechanism providing
or an electric motor when electricity is avail
a positive drive could be used.
able. This modi?cation is so designed that it '
Suitable brake mechanism, not'shown, may be
may be taken apart into three separate units,
‘applied to the drum, to hold the drum in any
each unit being light enough for a man to trans
adjusted position and‘ thereby hold the load as 85 port from one place to another.
desired. This brake mechanism may be so con
The crane is provided vwith a pair of frame
nected that the brakes are automatically applied
members 260 bent into shape from suitable
whenever the power is disconnected from the
structural steel tubing, such as round, elliptical
bevelled discs I82 and I84.
'
or rectangular tubing. This structure simulates
40
The hoisting device may 'also be angularly
the thill-like members described above. Members
moved by the prime mover. ' This may be accom
260 are telescoped into larger tubular members
plished by the driving mechanism now to be de
262 and held in place by suitable bolts 264 shown
scribed.
in Figure 5. An axle member 266 is supported
The pulley I10 drives a V-belt 200 passing over
45 underneath tubular members 262 by two pairs of
a pulley 202 attached to a stubshaft 204 journalled
long-horned-like members 268. Members 268
in a bearing 206. The stubshaft drives through
are welded to the tubular members 262. The axle
a universal coupling unit 205 and a shaft 201 a
266 has journalled thereon a pair of wheels 210.
‘ conical drive. member 208 mounted between a
The center of the axle 266 is supported upon a
pair of bevelled discs 2I0 and 2I2 ?xedlyat~
plurality of diagonally disposed rods 212 under
tached to a shaft 2I4 keyed to a gear or pinion ‘1 lying a platform or plate 214. The rods 212 are
2I6, meshing with the internally directed teeth
preferably welded, both to the tubular members
of the gear ring 00. The eccentric bearing 209
262 and to the axle 266. In addition thereto, the
may be rotated in clockwise or counterclockwise
rods 212 may have their extreme ends welded to
direction by oscillating the lever I90 to the right
the underside of the platform 214 when this plat
or to the left, as viewed from the driver’s seat,
form is made of metal. The center of the plate
and in a direction at right angles to the push
‘214 is provided with a suitable aperture receiving
pull direction described above. By oscillating the
a tubular standard 216. The standard 216 is
lever I90 to the right or to the left, a shaft 220 is
provided with a pair of ears 218 welded to the top
rotated. This shaft 220 has one end non-ro
60 thereof. Said ears support a pintle or stubshaft
tatably attached to the lever I90 and the opposite
280, having journalled thereon a sheave or pulley
end journalled in a bearing 222 and supports a
282. The lower end of the standard also has at
crank arm 224, having attached thereto a rod 226
tached thereto a pair of ears 294, supporting a
connected to the eccentric bearing 206. Thus, it
sheave or pulley 286.
‘is seen that the lever I90 has movements in two
directions. When moving in one direction, it
The standard 216 supports a collar 290, having
pivotally attached thereto a composite telescopi
cally arranged boom assembly 292. Some of the
sections of the boom assembly 292 are provided
with a plurality of apertures 294, one of which is
adapted for registry with an aperture 296 in the
controls the lift of the hoist. When moving in
the other direction, it controls the swing of the
hoist. When the eccentric bearing 206 is rotated,
it raises or lowers the end of the shaft 204, so as
to engage one oi the bevelled disc members 2I0
.
or 2 I2.
adjacent boom member so as to permit the in
sertion of a boltv or pin through the registering
In the event a light load is to be lifted, the
pulley I24 may be dispensed with and the end of
the cable I22 connected directly to the load. For
holes to hold the boom members in adjusted po
sition. If it is found desirable to shorten the
boom or to lengthen it, it is merely necessary to
21
2,387,087
remove :the ‘pm: from ::the - registering :apertures
mounted within the drum 340. ' From-"thafore
going description it can be readily'seen that ‘as
the lever 352 is moved out of neutral position,
it does two things. The movement of this lever
automatically releases the brake and '. at ?'the
same time shifts the drum 340 into‘ engagement
with one of the friction wheels 3200!‘ 338. By
sodoing, the drum 3l0 is rotated either .to wind
ofn'the boom‘ 292, supports a cable or rope 306,
the cable 306 upon the drum to hoist the weight,
provided‘ with a hook or any. other‘ suitable vvat
.taching means 308 for- engaging the object .tobe 10 or, if the lever is moved in the opp'csite‘directio'n,
to unwind the cable from the drum tolower .the '
lifted. "The cable 1306,‘ in addition to passing
weight. The lever 352 is in handy reach of the
‘over the sheave 302,'passesover the’ sheaves‘282
operator, who may be seated upon ‘the seat: 310
and 286 and is=wrapped>or:wound upon a suitable
mounted upon a suitable standard 312 ?xedly
drum. 3l0. 1'As will appear more fully later, the
drum3|0 is driven in either direction by agas 15 attached to a base 314 .and attached to the ends
of members 260. Thus, it is seen,» that thethoist
engine 3l2.
‘
‘
‘
'
ing device is in easy control of :the operator; .The
The engine v3l2 is mounted upon asuitable
operator, being seated upon the seat, functions
platform 3l4 ?xedly attached to frame members
as a co-unterpoise. If the operator’s weightwis
.200. ."The platform 3l’4‘ is providedwith a plu
rality of longitudinally disposedlslots 316- permit '20 not su?icient, sandbags may be ‘placed on the
base plate 314, so as to weigh down the endof
;ting- adjustment of‘ the "engine .3l2 with respect
the crane.
to ‘the-platform 3“, to tighten the belt‘ 3'I8*driv'en
As shown in Figures 5 and 6, they boom'is
by theiengine' 3‘l2. 'Insteadof an engine, an elec
pointed ahead away from the operator. "The
tric'rnotor‘or‘any other ‘suitable prime mover
vand adjust the vboomasection's ‘to-.cause .the proper
apertures for the desired length. to register.‘
"The upper end of itheboom issupported by a
pairs-0f "chains 300'adjustably attached to the
‘standard-216. 1-A sheave1'302,. supported in a
forked member'304 attached :to the upper section
could be used.
‘
‘
The ’V-beltr_3;!8"drives-one ofa series-of pulleys
320 and‘ with 'it' ‘the; drive shaft 322 Ijournalled
insuitable bearings‘ 324; mounted‘ upon the frame
:25 boom, howevenmay be rotated'with the stand
ard 216 in either direction,'so as to lift the load
members. 260.;1The ‘811511131322 supports a‘ friction
:wheel 3~2Band ats'the eXtremeK-end‘a series of 30
that may be angularly disposed with respect'to
the longitudinal axis of the frame 'of‘the hoisting
device.
~ I
This has been accomplished by .?xedly'attach
>V-be1t 330 traveling over one of ‘a series‘ofpul
ing to the standard 216 a worm gear-380.:mesh
ing with a worm 382 rnounted-upon a'shaft-‘384
leys-332- fixedly:attached'tov the shaft 334 jour
nalledrin-a pair of ;bearings 336~mounted upon
journalled, in bearings 386', 388 and 390. rThe
shaft 384 is connected through a universal-joint
the frame members-4 260. - Theshaft 334311915“
mounted thereon V a; friction - wheel 338. in spaced
length and journalled on a bracket"‘404. “The
pulleys1i328¢one~of which is-selected todrivera
400 to a drive shaft 402 that may be adjusted‘in
relation from a largerifriction wheel or drum
shaft 402 terminates in a crank 406 within-3 easy
r34ll~attached to the {drum 31.0" The wheel/sv 326
:and?'338.~are aligned-with the‘ friction drum 340,
but each normally spaced from contact with the
drum. Inorder to drive the drum-3310, it has
been mounted for’ adjustment‘l into» engagement
with a selected i'friction'wheel 326 or'338, as'the
reach of the operator. The operator may oscil
late the standard 216 and the boomv 2-92 in either
direction by rotating the crank 4-06 in the proper
ecasev-may be. ‘One of these friction wheels is
used for winding the cable on the drumand the
other-is used for unwinding thecable from the
drum;
7
i
l
'
V
direction. If a rather heavy load is to‘be raised
from one side or the other, it may be foundnec
essary to weight the wheel opposite the boomwith
vsandbags, so as to provide anadequate-counter
poise.
I
For some types of lift, it'may be“ found=;ad—
vanta-geous to use a number of-sheaves toif-orm
The drum3l0. is‘ mounted upon an ‘eccentric
a tackle block between the'boom and thezload,
shaft. 350>~journalled in suitable bearings, one
the operation of which is ‘well known‘ to those
mounted->upon'veach frame member . 260. r When 50
skilled in the art.
this-eccentric shaft is rotated in 'one direction,
The hoisting device shown in; Figures-5 and 6
may be disassembled into three units, :each ‘of
which may be handled by one man'and; moved
it: advances thedrum 3|0-and with it the fric
itiondrum 340.into engagement with the friction
.whee1326. When :the shaft is rotated in-the op
posite direction, it moves the drumi3|0 and with ''
it :the friction wheel-or drum 346-rearwardly, so
as :to- cause the friotiondrum 340 to engage the
friction wheel ‘.338 so as tovbe driven thereby. A
from place to place without additional help.
Furthermore, the chassis-or frame-together-with
the wheels,:may be used as a trailer for: light
loads, such as boats or light. artillery. -.Further
-more, due to lightness of weight, the assembly
may .be loaded into anairplane in readiness for
lever~352 terminating'in. a collar that-is keyed to
‘the shaftv350 is used to oscillate the shaft 350 in (50 use in the event of. a wreck or accident. :The
trailer portion may then'be used as a trailer for
either direction.
gliders.
An- automatic brake mechanism is used to hold
This portable hoisting device may ‘be a used for
the drum 3"! from rotation when the lever 352
many. kinds of work with standardtools- or equip
iss-in neutral-position. This brake mechanism
ment. At times itmay be necessary to design
willnot. be described initsentirety; but includes
special equipment for special work. .This..hoist—
ardisc member360mountedupon the shaft .350
ing device may be ,used inside. ,of, buildings. or
and keyed thereto, and an idler or cam follower
factories where the .boom may be adjusted. to
362 normally seated in the notch inmember 360.
clear the ceiling or doors. Whenythis hoisting
This cam follower 362 is .pivotally mounted upon
device is used in construction work, the length
a movably mounted lever 334 spring urged in the
of the boom may be increased so as to attaimthe
"‘down’{ position by a spring 386.. As the shaft is
desired height. This hoisting device is ‘adapt
rotated to the right, or to the left, as viewed
able for use in handling almost anything ‘that
in Figure 6,‘ the disc360 will force the cam fol
‘lower 36! out of the notch in‘the disc 360, which
movement
releases
the
' brake I mechanism
may bev handled with a fork, shovel or' by hand.
It may be used in loading vegetables, hay; ‘straw,
5
2,387,087
cornshocks, fuel, such as wood or coal, tanks of
fuel oil, gasoline and the like. It may be used
in‘handling ice and sawdust used in packing ice,
inloading and unloading logs and lumber, pulp,
fence posts and poles.
It .may be used on the
farm for handling rocks, in mines for handling
ores and minerals. In drainage and highway
work it may be used for handling tiles, dirt and
gravel. The hoist may be used for moving bulky
material such as scrap iron, cotton, cotton bales, 10
hoisting means being located on the frame ahead
of the tractor and including a turn-table mount
ed above the bogie wheels.
'
'
-
5.‘A hoisting device of the pusher type adapt
ed to be attached to a tractor, said hoisting de
vice including a frame having a pair of thill
like members extending rearwardly on either
side ; of the tractor, means for attaching the
frame to the draw-bar of the tractor, guiding
means for attaching the frame to the front end
of the tractor, said guiding means maintaining
the thill-like members in aligned relation'with
the tractor, Wheels mounted under the frame
other heavy parts. Numerous other uses for the
for supporting the same, said frame including a
device could be enumerated.
.
Although the preferred modi?cation of the de 15 circular race mounted above said wheels, hoist
ing means mounted upon said, race, and means
vice has been described, it will be understood that
for attaching the hoisting means to» the race,
within the purview of this invention various
said means permitting angular adjustment of the
changes may be made in the form, details, pro
hoistmgmeans upon said race.
portion and arrangement of parts, the combina
6. - A hoisting device of the pusher type adapt
tion thereof and mode of operation, which gen 20
ed to‘ be attached to a tractor, said hoisting de
erally stated consist in a device capable of carry
vice including a frame having a pair of thill
ingout the objects set forth, as disclosed and de
like members extending rearwardly on either
?ned in the appended claims.
side of the tractor, means for attaching the
Having thus described my invention, I claim:
1. Ahoisting device adapted to be attached to 25 frame to the draw-bar of the tractor, guiding
means for attaching the frame to the front end
a tractor, said hoisting device including a frame
of the tractor, said guiding means maintaining
having a pair of thill-like members extending
the thill-like members maligned relation with
rearwardly on either side of the tractor, means
the tractor, wheels mounted under the frame
for attaching the rear ends of the thill-like
members to the draw-bar of the tractor, a pair of 30 for supporting the same, said frame including a
machinery and the like. In the aircraft indus
- try it may be used in interchanging engines and
bogie wheels for supporting the frame, said bogie
circular track mounted above said wheels, and
hoisting means rotatably mounted on said track,
wheels having a greater wheel spread than the
said hoisting means including a boom, and means
wheel spread of the tractor, and hoisting means
carried by the boom for supporting the body to'
mounted on said frame, said hoisting means be
.
ing located ahead of the tractor and including 35 be lifted.
7. A hoisting device of the pusher, type adapt‘a turn-table mounted above the bogie wheels.
ed to be attached to a tractor, said hoisting de
2. A hoisting device of the pusher type adapt—
Vice including a frame having a pair of thill-like
ed to be attached to a tractor, said hoisting de
‘ members extending rearwardly on either side of
vice including a frame having a pair of thill
like members extending rearwardly on either side 40 the tractor, means for attaching the frame to
the draw-bar of the tractor, guiding means for
of the tractor, means for attaching the frame
attaching the frame to the front end of the trac
to the draw-bar of the tractor, guiding means
tor, said guiding means maintaining the thill
for attaching the frame to the front end of the
hke members in aligned relation with the trac
tractor, said guiding means maintaining the
thill-like members in aligned relation with the 45 tor, wheels mounted under the frame for sup
porting the same, said frame including a circu
tractor, wheels mounted under the frame for
lar track Vmounted above the wheels, hoisting
supporting the same, and hoisting means mount
means mounted for rotation upon said track, and
ed on said frame positioned ahead of the tractor,
driving means driven from the engine of the
said hoisting means including a turn-table
mounted above the bogie wheels.
50 tractor. for rotating the hoisting means upon
said track.
'
3. A hoisting device of the pusher type adapt
8. A hoisting device of the pusher type adapted
ed to be attached to a tractor, said hoisting de
to be attached to altractor, said hoisting device
vice including a frame having a pair of thill
like members extending rearwardly on either
including a frame having a pair of thill-like
side of the tractor, means for attaching the rear 55 members extending rearwardly on either side of
the tractor, means for attaching the frame to
the draw-bar of the tractor, guiding means for
attaching the frame to the front end of the trac
tor, said guiding means maintaining the thill
like members in aligned relation with the trac
tor, wheels mounted under the frame for sup
porting the same, a drum rotatably mounted
upon said frame, said frame including a circular
track, hoisting means mounted for rotation upon
4. A hoisting device of the pusher type adapt
ed to be attached to a tractor, said hoisting de 65 the track, said hoisting means including a boom
and a cable, said cable being attached to the
vice including a frame having a pair of thill-like
drumso that as the drum is rotated the length
members extending rearwardly on either side of
of the cable is adjusted, and driving means for
the tractor, means for attaching the rear ends
optionally driving the drum and for oscillating
of thethill-like members to the draw-bar of
the tractor, ?exible means for interconnecting 70 the hoistingdevice upon the frame, said driving
ends of the thill-like members to the draw-bar
of the tractor, ?exible means for attaching the
thill-like members to the front end of the tractor,
supporting wheels, means for mounting, the
wheels under the frame, said means permitting
free swinging movement of the wheels and hoist
ing means mounted over the supporting wheels,
said hoisting means including a turn-table.
the thill-like members to the front end of the
tractor, bogie wheels mounted under the frame,
said bogie wheels being arranged in spaced rela
tion from the tractor so as to support the frame,
inean's being driven from the engine of the trac
or.
, 9. A holster device of the. pusher type adapted
to be attached to a tractor, said hoisting device
and'hoisting means mounted on said frame, said 75 including a frame having a pair of thill-like
6
2,387,087
members extending rearwardly on either side
of theftractor, means for'attachingthe frame
to the draw-bar of the tractonrguiding means '
for attaching the ‘frame to‘v the front end of vthe
tractor, said-iguidi-ng- means :maintaining» the
device including a pair of thill-like ‘frame mem
bers extending rearwardly oneon each ésidei'iof
the tractor, ?exible means for‘ interconnecting
said thill-like frame; members tothe ‘tractor,;.a
pair of transverse frame’ members, means for
thill-like members in aligned-relation-dwith the
tractor, wheels? mounted under the frame for
vpivotally attaching the transversemembers to the
thill~like members, turnbuckle means for leveling
supportingthe same, said frame including a cir
said transverse members, said turnbuc'kleintere
cular track mounted above the wheels, hoisting
connecting the transverse members to the thill
means rotatably mounted upon the vtrack, said 10 like members in spaced relation from the vpivotal
hoisting means including a boom and a cable,
mounting, a circular, track, means for intercom;
means- for-adjusting the length of the cable,
necting the circular track to thestransverse mem_
driving» means for ‘interconnecting the engine
bers, hoisting means *rotatably mounted upon, the
of the tractor tothe cable adjusting means, and
circular track, said hoisting'rneans including'a
control ‘means imountediuponone vof the thill 15 boom and a cable, means for adjusting the length
like“ members, said‘ control --means~being mounted
of the cable, and driving means for interconnect
within reach of the operator of the tractor for
ing the engine of the tractor ‘to the cable ad
controlling the. adjustmentof the cab1e.~
justing , means;
‘
,
10. A hoisting device of the pusher type adapt~
1-4; A‘ hoisting device of the pusher type
ed-rtovbe attached to‘ a tractor, said-hoisting de 20 adaptedfto be attached to a ‘tractor, said hoisting
vice including a ‘frame having a pair of thill-like
device including a pair of thill-like frame mem
members extending rearwardly on either side of
bers extending rearwardly one on each side of
the-tractor, means for attaching the~frame to
the draw-bar of the‘ tractor, vguiding means“ for
attaching the frame to the front end ‘of the trac
tor, said -' guiding means-maintaining the thin
like members in alignedrelation with the trac
tor, -' wheels mounted'under the‘ frame for sup
porting the same, said frame member including
a circular track, a- hoisting device mounted‘ for
rotation upon the track, said'hoisting device in
cluding a boom~and 'a'cable'for lifting the load,
a
mounted underneath the track, said ca
bl'e-being attached to said drum, driving means
for interconnecting the drum and the'hoisting
deivce to the engine of the tractor so that the
engine of the tractor may be used to actuate the
drum and rotate the hoisting device, and con
the tractor, ?exible means for interconnecting
said thill-like frame members to the tractor, a
pair of ‘transverse frame members’, means for
pivotally ‘attaching the trans-verse members to the
thi-ll-like members, turnbuckle means for leveling
saidv vtransverse members, said turnbuckle inter
connecting, the transverse members to the thill-v
like members-in. spaced relation from the pivotal
mounting, a circular track, means for intercon
necting the circular'trackito the transverse-mem
bers, hoisting means rotatably mounted ‘upon
the circular track, and ‘driving means for inter
connecting theengine to the hoisting device for
‘rotating the, hoisting devioe'on the track.
'15. A hoisting device of the ‘pusher type
adapted to be attached to ‘a tractor, said hoist;
trol means mounted within'reach of the opera
i-ng device ‘including a pair of thillelike frame
tor of the tractor for controlling the rotation of 40 members vextending rearward-1y one on each- side
the hoisting device upon the track and for ‘con
of the tractor, ?exible means for interconnect
trolling the rotation ofthe drum.
' '
'
in'g said thill~like frame members to the tractor,
1-1. A-hoisting ‘device of‘ the ‘pusher type adapt
ed to be attached-to a tractor, said hoisting de
vice; including a pair of thill-like ' frame mem
bers extending rearwardly *one‘on each side of
the-tractor, ?exible means for-interconnecting
said \thill-like frame members to-the- tractor, 'a'
a pair of transverse frame members, means for
pivotally attaching the transverse members to
the thill~like members, turnbuckle means ‘for
leveling said transverse members, said turnbuckle
interconnecting the transverse members to the
thill-like members in-spaced relation from the
pair --of transverse frame ~members, adjustable
pivotal mounting, a ‘circular track, means for
means for interconnecting said transverse frame 5.0 interconnecting the circular track to the trans
members to the forward ends of the thill-li-ke'
verse members, hoisting means rotatably mount
frame members, a ‘pair of ~bogie wheels, means'for
ed upon the circular track, driving means for
attaching the bogie wheels to the transverse
interconnecting the ‘engine to the hoisting device
frame members, a circular- track carried upon
for rotating the hoisting ‘device on-*the*track,
said transverse frame members above the bogie 55 and control means within the reachof the oper
wheels,‘ and a hoisting device rotatably mounted
ater for controlling the dr-iv-ingmeans to thereby
upon the track.
‘
'
‘
control the rotation of the hoisting device upon
1,2. A hoisting \device- of the? pusher type
said track.
_
'
'
adapted foo-be attached to a tractor, said/‘hoist
16. VA hoisting device adapted to be at
ing-device including a pair of thill-like frame 60 tached to a tractor, said hoisting device including
members extending rearwardly one on each side
a pair of tliill-like frame members extending
of‘ the tractor, ?exible means for interconnecting
rearward-ly-one ion-each side of ithe'tra-ctor, flex
said thill-like frame members to’ the tractor, a
pair oftransverse frame members, means for
ible means for ‘interconnecting saidv vthill-‘like
frame members to the tractor, "bogi'e wheels
pivotally- attaching thetransverse members‘ to 65 mounted underneath the front end of the thilll
the thill-like- members, turnbuckle means for
leveling :said transverse members, said vturnbuckle
like frame ‘members for supporting the same, ‘a
circular track, means for interconnecting‘ the
interconnecting. the transverse members to the
circular track to the forward ends of the thill
thill-Iike members in spaced relation from the
likev frame members, a hoisting ‘device mounted
pivotal; mounting, .;a_,circular track, means for 710 upon the ‘circular track, said hoisting device in.
interconnecting, the circular track to the trans
cluding a crane angularly disposed with ‘respect
verse members, and hoisting means rotatably
to ‘the thill-like frame- members, and a counter
mounted upon the circular track.
po'ise diametrically disposed ‘with respect to ‘the
> ,13,..\A- hoisting. device of the’ pusher type
adapted to ‘be attached :to a: tractor, said hoisting 75
crane so as to counterbalance-the same. .
, ‘
’
O. NELSON.‘ "
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