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Патент USA US2109794

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Marchll', 1938.-
c. A. GUsTAFsoN
2, 1_ 09,794
Filed March 8,( '1954
l0 Sheets-Sheet l
March l, 1938-
c. A. GUsTAFsoN
2, l 09, 794
fFiled March s, 1954
l0 Shèets-SHeet 2
March l, 1938.
c; A. GUsTAFsoN
Filed Maroì’í 8, 1934
l0 Sheets-Sheet 5
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March 1, 1938.
c, A. GusTAFsoN
. 2,109,794
Filed March 8, 1954
10V sheets-sheet 4>
Byéä É 5%/ffî e,
March 1, 1938.
c. A. GUsTAFsoN
ïFiled March s; 1954
1o sheets-sheet 5
March l, 1938.
Filed March 8, 1954
lO Sheets-Sheet 6
BY (arl I7. íw?afson ~
March l, 1938.
Filed March 8, 1954
10 Sheets-Slíeet 7
Marth'l, 1938.
c. A. Gus'rAFsoN
2,109,794 "
'Filed March 8, 1954
' 1o sheets-sheet 8
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March l, 1938.
Filed March 8, 1934
10 Sheets-Sheet 9
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March Í, 1938.
c.' A. GUsTAFsoN
2,109, 794
Filed March 8, 1934
l@ Sheets-Sheet l0
._„nv A.6mw
Patented Mar.. 1, 193s
_ 2,109,794
Carl A. Gustafson, Peoria, lll., assignor to Cater
pillar Tractor Co., San Leandro, Calif., a cor
poration of California
Application March s. '1934, serial No. 714,554
5 Claims. (c1. 19a-11s) '
Description 0f figures
The present invention relates to road ma
chines. and more particularly to the prbvision of ~ Figs. 1 through 3 are general _views of the ma
an improved elevating grader construction.
It is an object of the invention to. provide an
a left side elevation.
improved elevating grader having a weight dis
Fig. 21s a rear end elevation.
tribution which places a substantially uniform '
ground pressure on each ground-engaging sup
sion, and having the rig/ht rear wheel in extended
Another object of the invention is to provide
an improved elevating grader which is adapted
for use with carriers of dift'erent lengths; and
position to compensate for the additional car
rier length. `
which__includes adjusting means for controlling ,
the weight distribution of the grader to provide
a substantially uniform ground pressure on each
. Fig. 5 is a transverse vertical section looking
toward the rear of the machine and taken in the
rier is omitted from the view.
Another object ofy the invention is to provide
an improved elevating grader having compara
_ f
Fig. 6 is a' horizontal sectional‘view of the front
wheel and axle assembly taken in a horizontal
plane indicated‘by the line 6_-6 in Fig. 1; the
tively light draft and which can be easily guided.
Another object of the invention> is to provide
an improved elevating -grader- which can operate
on level ground without side draft.“
Fig. 4 is a plan view of the frame construction.
plane indicated by line 5--5 in Fig. 1. The car- u
v15 ground-engaging support with any length -car
Fig. 3 is a schematic view similar to Fig. 2, il
lustrating the carrier equipped with an exten
draft pole being shown in elevation.
Fig. l7 is a sectional view taken in the plane of 20~
the line 1-_--'l inFig. 6.
y `
Fig. 8 is a rear elevationalview of the rear '
" .Another object of the invention is to provide
an improved elevating grader in which the front
25 wheel and axle assembly hasfull oscillation in
wheel and axle assembly with certain portions
shown in section.
horizontal andyertical planes.
>,Another object of the invention is to provide . .
an improved elevating grader which can be turned
around sharply, and at least within a diameter
Fig. 9 is a fragmentary section taken on the
line 9-9'in Fig. 8.
Fig. 10 is a fragmentary side’ elevational view’y ‘l
of the center of the-carrier,~ and a portion of t "
frame cooperating therewith. The view is in
direction looking from the rear end of the ma'
¿30 substantially equal to the grader length.
" _Another object of the invention. is to provide
an improved elevating grader in which the sup
Fig. 11 is.a fragmentary horizontal sectional
ports therefor are adjustable' to _ prevent, the ._
view of the> mechanism illustrated in Fig. 10.
grader from slipping into a cutf .
Figs. 12 through 15 illustrate the power unit, 35
35 - Another object of the invention is to provide _
an improved elevating grader having ground sup- -
including driving mechanism for the carrier belt
ports constructed to remain clean during opera
and the power control mechanism.
tion, so as to promote light draft.
Another object of the invention is to provide an
planes indicated by lines i2-_|2, |2'--I2'in Fig.
_ ,
Fig. 12 is a horizontal sectional view taken in
40 'improved elevating grader having the power unitÀ
mounted to simplify the drive connection there-.
Fig. 13 is an elevational view of the front end 40
the power unit,4 similar. to that shown in Fig.
from, to aid in obtaining correct weight distribu- \
5; certain parts being shown in section to illus
tion, and for accessibility for servicing and repair.
Another object of the invention is to provide ~
45 an improved elevating grader having an opera!
tor’s seat with the grader controls grouped with
respect to the seat so that all operating adjust
ments canbe made by an_operator sitting in the
trate the .construction more clearly.
drive for the carrier belt and for the power con- '
trol mechanism.
Another object of the invention is to -provide
.an improved elevating grader constructed to pro- ' ~
vide economy in manufacture. and assembly.
Fig. 14 isa fragmentary' sectional-view taken 45
in the plane indicated >by line- id---M- in Fig. 12.
Fig. 15- is a _schematic view illustrating the
~ „
Figs. 16 through 18 illustrate a second modiii- 50;
cation of the invention in which the driven parts
of the grader are operated by a power take-oir
` from the draft vehicle.
Other objects will Íappear'as the, _descriptionv i. Fig. 1_6 is a schematic plan view.
""¿5'5 progresses.
. ' ffFig.; 17¿ is a front .elevation with the support- 55
ing connection from the frame to the front wheel
and axle assembly shown in section.
Fig. 18 is Va. schematic view of drive connec
tions from the power take-01T to the power con
trol mechanism and to the endless conveyor belt.
Description of machine `
The elevating grader disclosed herein is espe
cially designed to obtain simplicitymf structure
while providing complete flexibility in maneuver
plate 26 riveted to the top faces thereof. Front
bolster 21 (Fig. 1) is bolted to the bottom faces
of side members 2|, 22 to provide a. connection
to the front wheel and axle assembly, which is
_described more specifically hereinafter. Side
«members 2|, 22 are of similar construction and
each comprises I-beam 3| (Fig. 5) having oppo
site plates 32 welded betweenl the respective pairs
of flanges thereof to provide a rigid tubular con
struction for each of side members 2|, 22.
ing and adjustment, and to obtain eñicient op
eration. To accomplish the above objects, the
various parts of the machine have been relocated
from the conventional locations thereof found
in known elevating graders, and an improved
auxiliary frame members connected thereto 'to
support various parts of `the elevating grader.
Adjacent the front (Figs. l and 4), cross channel
36 is secured to side members 2|, 22 by bracket
31 and extends outwardly to either side thereof.
At its left end, channel 36 is connected by ver
frame and frame suspension are provided to
obtain correct weight distribution. The frame
is generally V-shaped, converging at the front
end to provide a universal connection with the
20 front wheel and Aaxle assembly at the center of
Frame members 2|, 22, which converge at their
front ends, and are arched upwardly, form the
back-bone of the` frame, and have a plurality of
tical post or angle 36 to the front end of longi
At the rear, the frame is connected
tudinal channel 39, which extends rearwardly
at widely spaced points to the rear wheel and axle
and is connected to side member 2| at its rear
assembly which serves to maintain the frame in
a stabilized condition irrespective of oscillation
end by vertical post 4| (Figs. 4 and 5) and by
gusset plate 42 welded around side member 2|
the axle.
25 of the front wheels during travel over obstruc
« Also, the engine is located in its most advan
‘ and riveted to post 4|.
Similar'spaced frameworks are provided, ex
tending transversely of the grader at the center
to form a-support foryarious carrier adjusting y.
jacent one of the rear wheels, and, consequently, mechanisms; the space between the frameworks
30 in back of the carrier. In this position, the engine _ accommodating the carrier. Below side’members
tageous position, directly over the rear axle ad- ~
serves as a counter-balance for the loaded car
rier, which extends outwardly past the otherf of
the rear' Wheels. To compensate for varying
lengths of the carrier, the other of the rear wheels
35 is extensible to a plurality of positions so that
with any length of carrier a uniform pressure is
transmitted from each of the _wheels to the
Such arrangement of the parts to4 obtain cor
40 rect weight distribution is important because
_ when uniforml ground pressure per square inch
is obtained ät all the wheels, the power required
to pull the grader is reduced inasmuch as `no
The grader can be
` 'wheel sinks abnormally.
guided easily, is adapted forneasy, short turning,
and side draft is eliminated.
The location of the engine is advantageous in
other- respects, as well as in obtaining correct
vweight distribution. By yirtue of locating the
50 engine in back of the carrier, alv direct drive is
obtained from the engine to the driving drum
at the outer end of the carrier; and the drive
' connection is locatedienti'rely on the~trailing side
of theA carrier. In this position, the drive con
55 nection is not injured if the carrier strikes‘an
obstruction. Moreover, the engine does’inot ob-.
struct the operator’s vision, and is placed in an
accessible location for servicing and repair work.
The elevating grader will now be described in
detail, and other advantageous features thereof
v- will be apparent from the description.
2|, 22 and in transverse alignment with post 4I,
is -cross channelt 43 riveted at one end to plate
42 and atthe other end to plate 44, welded
around side -member 22. Post 46 is riveted to
angle 43 and plate 44, and' extends both above
and below side member 22. Parallel to channel -
43 and above side members 2|, 22, cross angle
41 is secured to plate“ and to post 46 at one
end, and to plate 42 at the other end. As later
described, angle 41 provides a 'support for certain
of the carrier lift mechanisms.
At its upper end post ¿46 (Figs. 2 and 5) is
connected by means of gusset plate 46 to inclined
angle 49 which extends downwardly toward the
opposite side of the frame and is secured to plate
42. At its lower end, post 46 (Fig. 5) is con
-nected by gusset 5| to upwardly extending angle
52 secured at its upper end 'to channel 43. Thus, .
post 46, channelv 43, angles 41, 46, 52, and plates.
42, 44, form a framework at the rear side of the
carrier; and a similar framework (Figa l and 4)
is formed at the front side of the carrier. Such
similar »framework comprises channel 43A, post
46A, angles 41A, 49A, and 52A, and. plates 42A
and 44A. At the top, posts 46, 46A (Figs. l and 5)
are connected by cross _angle 56; and adjacent
angles 41, 41A are connected by cross angle 51.
Betweenfthe respective ends of angles 4,6, 46A,
diagonal brace members 56 are provided.
-Channel 43A (Fig. 4) at its right end is con
nected by plate 44A and post 46A, to longitudinal
channel 6| which extends forwardly and is con
nected by a suitable bracket to the right end of
As noted above, the iframe> of the machine is . frontcroœ channel 36. Angle 62 serves as avbrace
65 generally lV-shaped and includes opposite tu
between channels 6| and 36. From the top of
bular side members which are widely spaced at post 46A (Figs. 1 and 4), bracingangle 63 ex
their rear ends and converge at their front ends.
Intermediate their ends, immediately ovei- the
carrier, the side members are arched to provide
70 ample clearance in any adjusted position of the
tends, downwardly to the iront end of channel
6|: and4 from the lower end of post 46A, bracing
angle 64 extends upwar’dly to channel 6|. Be
neath the carrier, bracing rod 66 extends from
Side frame members 2|, 22 (Figs. 1, 2, 4, and ' the bottom'of post 46A to bracket 61 (Fig. 1) se
r‘5) have their rear ends bolted to brackets 23 cured to the bottom of post' 46, and thence up
welded on rear axle 214, "and converge inwardly wardly to rearv axle 24. Thus, the spaced frame
76 (Fig. 4) and have their front ends Joined by works for supporting the carrier and theadiust
Posts 38 and ¿4| (Fig. 1) support the plow in a
manner later described, and are connected inter
5 mediate their ends, by longitudinal angle 1| con
movement by bolt |09A, in the manner described
`above. Thus, shaft || 6 and left front wheel || 8
_ 1| is also connected by -suitable gusset‘s to in
clined angles 49, 49A of the spacedf‘carrier sup
prevent side slipping of the grader. _At~ the left
end of axle |0|, shaft ||6 is clamped _against
nected thereto and supported intermediate its
ends by post 12 mounted on channel 39. Angle
10 porting framework.
tion wheel || 8 in any selected- one of a plurality
of extended positions, as indicated in phantom
lines. In’ working on a side lhill or when the
grader is apt to slip into a cut, wheel«.| I0 can be
extended to bear against the bank of the cut tov 5 .
ing mechanism therefor are suitably connected by
bracing means to frame members 2|, 22.
are extensible,_an'd are secured in adjusted po
sition with respect to axle |0| by spaced fasten
At the rear end of the frame, a framework is
provided for mountingthe power unit, compris
ing spaced channels 16 (Figs. 1, 2, and 4) con
ingmeans. It is to be noted that stub shafts |06., ||6 are interchangeable» so that the rightl front
l nected at their rear ends (Fig. 4) by cross-piece
wheel can be extended if desired. Obviously, both
15 11 and at their front ends> (Fig._5) by cross-piece
18. The -front ends of channels 16 and cross
piece 18 are connected by vertical posts 19 to cross
portant point being that ll have provided means'
front wheelsl can be made adjustable; the im 15
whereby the spacing between the front wheels can -
angle 8| ¿(Fig. 4) secured at its ends`by welding to ‘ be adjusted, to provide a proper path over which
thefront of themachine can travel, so that the
respective side members 2 I ,» 22. Inclined angle 62
20 (Figs. 4 and 5) connects _cross-piece 18 to angle
plow can properly do its work.
'Front wheels III, ||8 are drum type wheels
8|. Adjacent its right end, angle 8| has- the -verti
4cal portion of angle 83 secured thereto, whichv with crowned self-cleaning tires or rims. As
extends downwardly from angle 8| and then rear- ' wheels III, ||8 are similar, only one will4 be de
scribed in detail. Wheel ||8 (Figfß) comprises
wardiy to axle 24. Angles 8| and 83 provide a
25 -support for a platform and steps 85 leading to
hub I2| having imperforate drum members |22
rivetedto annular flanges |23 thereof, and arcu
member 2| (Fig. 4), spaced angles 86 provide a " ate metal rim or tire |24 welded around the pe
support for operator’s platform 81 (Figs._ 1 and ' ripheries of drum'members |22'. Hub |2I is re- cessed to receive bearings |26 which also engage
From the foregoing description, it is seen .that bearing portions |21 of stub shaft |I6;"wheel 30
the frame consists essentially of forwardly con
I I8 being secured‘on shaft I I6 by nut |28 threaded '
_ the operator’s station.
At the rear end of side
verging, centrally arched tubular side _members
on the end of shaft |I6. To seal the wheel and .
which have spaced connectionsat their rear ends - the ~bearings therefor against the entry of dele
to the rear axle, and have their front ends 'joined terious matter, collar |3| is, secured to hub -|2.|_
around shaft | I6 by suitable cap screws; and seal 35
|32 is seated in collar |3| and engages` shaft H6.
At the outer end, hub |2| has' cover |33 secured
35 and supported by> means, later described, on the
front axle.
Varìous‘auxìliary frameworks are
provided on the V-shaped main' frame to sup
port -the- plow, carrier, power unit, and other
means, as described hereinafter.~
_ ' `
thereto by suitable'cap screws.
tire, is provided which is journaled by suitable
bearingson ,a stub shaft removably secured to
Front supports l
axle |0I.
The front supports for the main frame include
‘a front axle having wheels mounted thereon, and
a draft connection secured thereto. Means are
45 provided for supporting the main frame univer
sally at the center ofthe front axle.
Thus, a drum -
type wheel having imperforate sides and a crown
The crown tire- promotes easy draft
and is self-cleaned; while the imperforate drum'
construction prevents mud or other soft material
collecting and caklng on the inside of the tire as
has heretofore occurred with> respect ,to spoke
Axle |0| (Figs. 1, 6, and 7) is of tubular con'-- . wheels previously employed.. As a. result, the com- .
bination of the drum type wheel and crown rim '
struction, being formed by welding a pair of an
gles together. At itsends; axle |0| is adapted to provides for improved operation of the machine.
50 »receive stub shafts upon which drum type wheels ` `The frame is universally 4supported on _the front _ 50
wheel and axle assembiyby means nf a kingbolt
with crownfrims are journaled by means of sult
able bearings. At~ its right end (to the left. in pivotally connected with the frame about _a ver
-Fig. 6), axle I0| has spaced, apertured blocks tical axis, arid pivotally connected with the axle
about a longitudinal, horizontal axis. -Bolster
|03, |04 (Figs. 6 and 7) secured therein by weld
~ 55^ing at |05. Stub shaft |06 extends through block 21 (Figi 1) has vertically spaced apertured bosses
, |03 to within axlev |0_|, and is secured to the 'axle |34,- |36 in which kingbolt |36 is journaled. King->
,_ by bolt |01 extending through axle |0| and
bolt |36 hasforked lower end |31 engaging boss `
through »transverse (aperture- in block |04. At, |35,~ and nut~ |38 engaging boss |34 toprevent
‘ the end of axle |0|, shaft |06 is-securely clamped ._
60 in position; for this purpose,.axle |0| Vand block
|03 are slotted at |08 (Fig. 7) and are transversely
endwise displacement; Forkêd end |31 embraces
axle IOI (Figs.y 1 and 6), and has apertured por
tions |39 in longitudinalV alignment with aper
apertured torecelve clamping bolt |09. "Thus, tured portion V|40 of axle.|0|. Bolt -|4| extends
shaft I|06 is detachably mounted in axle |0|;, be-f through apertured portions |39, |40, and is jour
ing securely fastened thereto at spaced pointaî naled in sleeve |42 in said apertured portion |40.
Passage |43 is provided in bolt |4I for the intro
duction of lubricant through a suitable fitting.
~ At left end of axle» I0| (tothe right in‘Fig. 6) ' _ From the foregoing description, it isfseen that
stub shaft ||6 extends within axle |0I, through the frame is mounted for _movement about the - spaced blocks |03'A, |04A, similar to blocks |03, verticalaxis of kingbolt( |36 which is connected
70 I04_described'above. Shaft | I6 has a plurality to the front axle for -relative pivotal movement
of transverse apertures I I1 selectively adapted for ‘about a, hòrizontaLlongitudinal axis. VThus, the
engagement bybolt |01A when 'aligned Iwith the ' front wheel and axle assemblyv can oscillaïte uni
65 The mounting of- wheel I-|_I on shaft |06 -is de
scribed hereinafter'.
_ aperture through/axle I0=| and block |04A. Ap
ertures ||1 provide for adjustment of shaft _H6
75 and crown wheel ||0 mounted thereon, to posi
versally'in vertical ‘and Phorizontal 'planes with
respect to the main frame. Either wheel can
move a considerable distance above the level of A75 i
the other wheel, and the wheel and axle assembly
tracted position to accommodate the length of
can be rotated over 90 degrees> from its trans
the carrier shown in Fig. 2. Fig. 3 illustrates
schematically an extended position of wheel |16
when the carrier has been lengthened by means
verse position; the arched main frame providing
clearance for a front wheel during such move
ment. As a result, sharp turning of the machine
can be effected on any type of ground.
A draft connection is provided from the front
of carrier extension |89.
‘ '
The carrier is generally of conventional con
wheel and axle assembly of the grader to thel
draft vehicle. Draft pole |5| (Fig. 1 and 6) has struction, and only the improved Aconstruction
spaced brackets |52, |53 welded'thereon. Extend
ing through bracket |53 and welded thereto is
transverse ‘pipe member |54 which has brackets
|56 welded on its ends. Diagonal bracing mem
bers |51 (Fig. 6) ~are welded at their rear ends
inbrackets |56 and converge forwardly and are
welded in bracket |52. To provide for. vertical
oscillation of the draft pole, a series of trans
versely aligned pivotal connections are provided
between draft pole |5|, and front axle |0|.
20 Brackets |53, |56 have spaced apertured ears
|58 which are pivoted by means of cutter-held
pins |59 in pairs of spaced ears |'6I on axle |0I.
~ thereof will be described in detail.
The carrier comprises upper section 20| (Fig.
10) and lower section 202 of generally similar
construction which are pivotally joined at 203.
Carrier 20 | (Figs. 10 and 11) comprises spaced
side frame members 206, 201 which are connected 15
by a plurality of transversely and diagonally dis
posed braces 208. A plurality of rollers 209 (Fig.
10) are suitably journaled in frame members 206,
-201 tosupport endless carrier belt 2| |. To con
fine material within the width of the belt, _side 20
boards 2|2 are supported from side frame' mem
bers 206, 201 by a plurality of angle brackets 2|3.
At the front end, draft pole |6| has draft bolt Lower section 202 of the carrier is similarly
|62 pivotally and resiliently mounted Vtherein in constructed.
The connection between the carrier sections is 25
25 any suitable manner, and draft link |63 is piv
- adjustable to provide for proper alignment there
otally mounted in draft bolt |62 by pin |64.
of. Side members 206 (Fig. 11) of upper section
Rear supports
20| has strap 2|6 secured thereto, having an
The rear supports comprise rear axle 24 (Fig. apertured end positioned between frame member
206A and bracket 2| 1 'secured to member 206A.
30 8) of tubular construction which is secured by
brackets 23 to respective side members 2|, 22 as Pin 203 provides a pivotal connection between
above described, and also stub axles on which strap 2| 6, and bracket 2| 1 and frame member
rear wheels are mounted; the rear wheels being 206A. Frame member 201A is similarly equipped
-similar in construction to front wheels |||, ||8 with a bracket 2|1, and is apertured to receive.
heretofore described. At the left end of axle 24, pin 203A> which extends through the apertured
stub shaft |1| is secured by welding and has left end of plate 22| slidably mounted by brackets
rear wheel |12 journaled thereon similarly to '222, 223 on side frame member 201. At its end,
the mounting of each of the front wheels on the plate 22| has threaded extension 224 engaged by ^
- front axle. Left rear wheel`|12 is provided with adjusting screw -226 rotatably mounted in bracket
221 on side frame member 201. By rotating ad 40
40 plug |13 which can be removed to place a suit
able material, such as oil or water, within the justing screw 226, plate 22| is moved alongside
wheel when additional weight is necessary to
counter-balance the carrier.
The right rear wheel is extensible to a plurality
45 of positions to compensate for different carrier
frame member `201 to adjust pin 203A in axial
alignment with pin 203. It is seen, therefore,
that an adjustment is provided between the car
rier sections to insure proper alignment thereof.
lengths, so that the weight which is carried by - The carrier is supported in a conventional
manner from the frame of the grader by upper,
the respective rear wheels is distributed to ob
tain uniform groundpressure. Right rear wheel - lower and center carrier lifts, which will be gen
|16 (Fig. 8) is journaled, in the manner described erally described.
'I‘he upper carrier lift comprises a pair of chains 50
50 with respect to the other wheels, on the outer
23| (Figs. 1 and 2) having one pair of their ends
end of shaft |11 which is slidably mounted with
in axle 24. To secure shaft |11 and wheel |16. secured to respective posts 48, 46A. Chains 23|
in a selected adjusted position, shaft |11 has a ` extend around suitable pulleys 232 (Fig. 2) con
plurality of spaced» apertures |18 which are ` nected by >link 233 to opposite sides of upper sec
55 adapted to be aligned with opposite apertures in tion 20|, and are also secured to shaft 234 (Fig. 1) 55
suitably journaled on inclined angles 4.9.v 49A.l
axle 24 to receive fastening bolt |19. An ex
tended position of right rear wheel |16 with bolt 'Shaft 2341s rotated to wind or unwind chains
.|13 engaging left-most aperture |18.;is illustrated 23| to raise- or lowerl the upper carrier by means
in phantom lines in Fig. 8.
Means are provided for'preventing >rotation of
shaft |11 to maintain apertures , |18 in align
ment with the corresponding aperture in axle 24.
To accomplish this purpose, shaft |11 (Fig. 9)
has longitudinal groove |8| receiving key |62
on guide member |83 disposed in recess |84
formed in axle 24 and right-hand bracket 23.
'I'he upper face of guide member |83 is arcuate
to engage shaft |11, and` the flat bottom face’
thereof is engaged by adjusting screw |86 thread
70 ed in bracket 23 and having lock nut |81 provided
Thus', the right rear wheel of the grader can
' be extended to provide proper weight distribution
- including gearing in housing 236 at the rear end
of shaft 234. The gearing in housing 236 (Fig. 2)A 604
is rotated by means including telescopic shaft
231 and reversible clutch mechanism in gear box
238 described more specifically hereinafter.
The center carrier lift includes a pair of chains
24| (Figs. 1, 2, and 10) connected at their lower 65
ends to respective pins 203, 203A, and having their
upper' ends connected to shaft 242 (Fig.v 5) suit
ably journaled at its ends on bracketsf243 (Figs.
4 and 5.) secured to posts 46,'46A. l’Shaft 242 is
rotated from gear box 238, by gearing in housing 70
244 (Fig. 2)' and shaft 245.
'The lower carrier lift includes a pair of chains
25| (Figs. 1 and 2) secured at their lower ‘ends
tothe opposite sides of the lc wer end of carrier
when_the carrier length'is extended. As illus
trated in Figs. 2 and 8, wheel |16~is in its re#l _' .section 202. Chains-26| extend upwardly and 75
over suitable pulleys on shaft -252 (Fig, 5) jour
naled at itsiends in respective channels 43, 43A,
A draft connection is provided from the plow
and to a plurality of positions on the frame of
the machine. As seen in Figs. 10 and 11, oppo
site struts 26| are provided, having their- outer
291 (Fig. 5) . ' A similar adjustable connection is
beam to the iront axle. For this4 purpose, trans
and are connected to shaft 253 journaled at its verse member 29| is suitably connected to beam
ends on angles 41, 41A. Shaft» 253 is rotated 214 and has draft chain ~connection 292 with
from gear box 238, by gearing in housing 254 draft pin 293, mounted in bracket 294 beneath
axle |0| and suitably connected thereto by pin
and by shaft 256 (Figs. 2 and 5).
Adjustable means are provided for maintaining 296. -To prevent undue movement of the plow
the carrier properly positioned transversely with - beam 214 forwardly, chain 298 (Fig. 1) is con
' respect to the frame of the machine; and for nected thereto and to side member 2|.
'I‘he rear end?of plow beam 214 is adjustably
10 this purpose, struts are provided which are ad
justable to a plurality of positions on the carrier connected to the frame by transverse member
ends pivotally connected by pins 262 to opposite
angles 263 on. respective frame members 206, 201.’
Each angle 263 has a plurality of apertures 264
to receive pins 262. At their inner ends, struts
26| are adapted for connection in between small
angles 268 and respective posts 46, 46A, by pins 266 adapted to pass through selected of a plu
rality of vertically spaced apertures 261 formed
in angles 268 and posts 46, 46A.
By adjusting the ends of the struts vertically)
25 on the frame and longitudinally of the carrier,
the transverse position of the carrier with respect
to the frame can be adjusted, so that the lower
provided from the front end of beam 214 to the
frame. Thus the plow can be adjusted laterally
with respect tothe frame. As stated above, the 15
lateral adjustment of the carrier provides for
proper positioning thereofI with respect to the
plow in any position thereof` and/or with any
size plow.
Power unit
The‘power unit comprises an engine and trans- I
mission mechanism for transmitting a drive from'
the engine to the endless carrier belt, an'd alsol
to the power-control mechanism for adjusting
the carrier and the plow. The engine is mounted 5
at the rear of the grader immediately over the_\\
-rear axle adjacent the rear wheel which is oppo-l
. end of the carrier can be bodily shifted in proper
siteto rear wheel past which the carrier extends.
This location of the engine not only aids in se
The carrier is held against longitudinal move . curing proper weight distribution by serving to 30
relation to the plow.
ment, by opposite guide angles 269 (Figs. 10 and
counter-balance-the weight of the carrier, but
11) secured to respective side frame members
206A, 201A and engageable with plates 5|,V 51A.
At the lower end thereof, the carrier has chain
also aids in obtaining a relatively low center
of gravity, so that the machine can operate with
218 connected thereto and to draft pin 293. -,
work and the like. In addition, placing the en
gine at the rear of the carrier facilitates‘and
Plow 21| (Fig. 1) is adjustably supported fromv
Àthe frame of the machine adjacent the ground
or pick-up end of the carrier, in position to cast
dirt on the endless carrier belt. The speciñc
greater safety against overturning in side hill
materially simpliñes the provision of the drive _
connections therefrom to the carrier belt and to
the‘power control mechanism.
Engine 3|| (Figs. 1, 2, and 5) is mounted at 40
its rear end on cross member 11 by bracket 3|2,
construction of the plow -and its connectionsto
and atits front end on cross member 18 (Fig.
the frame of the machine will not-be described
vin detail, inasmuch as such description is un
necessary for an understanding of the invention.
Plow 21| (Fig. 1) is supported by bracket 212
5)4 by bolts 3 | 3 extending through integral flanges
of transmission housing 3|4. Housing 3|4 (Figs.
5 and 12) is secured by a plurality of bolts 3|5
and vertical bar 213 on Aplow beam 214.
mission housing 3|4 (Figs. 1 and 5), fuel tank 3|1Í
is suitably mounted on the front of engine 3| I;
the front of the engine being considered that
end which is foremost relative to the front of 50
the machine frame. Thus, the power unit is
to crankcase 8|6 of the engine.
Above trans
beam 214 is supported by chains 216 connected
thereto at their lower ends, and connected at
their upper ends to respective drums 218, 219 on
shaft 28|. Shaft 29| is supported -at its 'front
end by bracket 282 on post 38 and at its rear end mounted at the rear end of the grader, and the
by housing 283 (Fig. 5)v on post 4|. Drum 219 drive connections from the power unit are located
(Fig. 1) is loose on shaft 28| and is engaged nor
55 mally by slidable clutch element 284 slidably and
.« non-rotatably mounted on shaft 28|.
at the front end thereof.
-Two drives are provided from the power unit, 55
one of the drives being a clutch controlled drive
pressed lever 286 controls movement of clutch
element 284. Thus, the rear end of the plow
for the endless carrier belt, and the other of the
drives being a constantly running drive for the
beam can be adjusted simultaneously or inde
power control mechanism.
pendently of -the front end of the plow beam lto
control the suction of the plow, i. e., its angle
with respect to the ground. Integral with drum
having its end flange secured by screws 322 to
The engine (Fig.. 12) includes crankshaft 32| 60
flywheel >323.
Flywheel 323 has clutch cover
219 is brake drum 288 having brake band 289 ' 324 secured thereto by a plurality-of suitable
associated therewith and controlled from foot cap screws. Cover 324, together with flywheel
65 pedal 290 (Figs. 1 and`2).
Thus, when drum
219 is disconnected from shaft 28|, the rear end
of the plow can be maintained in its adjusted
position by operating foot pedal 290. Within
clutch plate 321 and flywheel 323, is driven clutch l
housing 283 suitable worm and worm wheel gear
plate 328 pressed on hub 329 which is splined o'n
ing is provided for driving shaft 28|, the gearing
being driven through shaft 29| from gear box
tubular shaft or sleeve 33|. Plate 328 has clutch
pending applicatipn, Serial N0. 716,324, med
faces of suitable material thereon adapted to be
engaged by the opposed faces of the flywheel'323
and plate 321 to transmit a drive- to the plate
328 andito shaft 33|. Shiftable clutch plate 321
March 19, 1934.*1 “
is normally urged to clutch disengaging position 75
238. For a more detailed description of the plow
frame construction, reference is made to my co
323, forms part of a clutch, and has internal 65
teeth »325 slidably engaged by teeth' 326 on shift
able driving 'clutch plate 321. Between driving
by a plurality of springs 332 surrounding studs
333, threaded in plate 321 and extending through
drum of the carrier; the drive extending sub
apertures in clutch cover 324. Only one spring
332 and associated stud 333 are shown.
stantially in` a, straight line parallel to and at th'e
rear side of the carrier. It is to be noted that
the drive consists entirely of shafts and sealed
To `accomplish shifting movement of plate 321
housings so that no interruption can be caused
(Fig. l2) to engage the clutch, spider 336 is ad
through obstructions by dirt, mud and the like.
justably threaded within apertured boss 331 of
The above described drive also includes means
for preventing reverse movement of the carrier
cover 324, and has a plurality of cam levers 338
of the lever being pivotally connected to link
340, also plvotally connected to shiftable collar
341. By shifting movement of collar 34|, levers
belt so that, when the belt is stopped, the load
thereon will not be deposited'around thev plow
by such reverse movement ofthe carrier belt.
To accomplish this purpose, an irreversible means
in the form of an automatic locking brake is
338 are oscillated to urge plate 321 to clutch en
associated with a clutch driven shaft within a
mounted thereon. One end of each lever 338
10 is plvoted at 339 on spider 336; the other end
15 gaging position. Adjustment of levers 338 with
housing of the power unit.
Within bearing cage 369 (Figs. 12 and 14) cam
respect to plate 321 is accomplished` by rotating
'spider 336 within boss 331. Spring-pressed ' 40| is secured by key 402 (Fig. 14) on shaft 364,
plunger 342 in spider 336 is provided for this between respective spacers >403- (Fig. 12), nut 406>
purpose;'the end of plunger 342 being adapted to on shaft 364, and bearing 361. Cam '40| is pro
20 engage in any one of a plurality of radially dis
vided with a plurality of offset cam surfaces 406, 20
forming equally spaced pockets 401 between cam
posed recesses 343 in plate 321. Shifting move
ment of collar 34| is controlled by forked mem
ber 346 (Fig. 12) _which is connected by suitable
shafts and linkage to hand lever 341 (Figs. 1 and
25 5) positioned at the left of the operator’s station.
From the foregoing description, _it is seen that a
selective clutch controlled drive is provided be
tween crankshaft 32| and tubular clutch driven
Braking elements are-disposed Within pockets
401, which are adapted to lock cam 40| and shaft
364 automatically against movement in one di
rection, while permitting rotation thereof in the
From clutch driven shaft 33 l, a drive is trans
mitted by shafting and enclosed gearing to drive
the endless conveyor. Shaft 33â is supported
adjacent crankshaft 32| by bearing 35E in fly
opposite direction. A roller 400 (Fig. 14) is pro
vided in each pocket 401; and said rollers are 30
of a diameter to permit rotation of -carri 40| and
shaft 364 when disposed in the deepest portion
of pockets 401 during counter-clockwise rotation
wheel 323; retaining collar 352 being provided
thereof, as indicated by the arrow. Upon clock- l
Shaft 33| (Fig. 12) .
40| and retainer 369. It is to be noted that
pockets 401 are deeper at one end than at the
35 therefor.
Seal 353 seated in collar 352 engages
shaft 33E. At its outer end, shaft 33| is sup
ported in bearing 354 in bearing retainer 356
wise rotation of cam 40|, rollers 40B become
wedged between cam surfaces 406 and bearing
cage 369 to lock cam 40| and shaft 364 'against
and collar 351, which are secured together and
to auxiliary housing 356 by screws 359. Seal 3_6|
4.0 is seated in collar 351 and engages shaft 33|'.
Resilient means are provided. for urging roll
ers 408 to locking position whenever counter
Within auxiliary housing 358 shaft 33| has in
clockwise rotation of cam 40| ceases. Plungers
tegral beveled pinion 362 which meshes with 409 (Fig. 14) are disposed in recesses formed in
beveled gear 363 on shaft 364. Shaft 364 is jour--l substantially radial walls 4|| of pockets 401, and
naled in spaced bearings 366, 361, in cover 368 are recessed to receive springs 4|2 which urge
45 and bearing cage 369, respectively. Lubricant plungers 409 outwardly against rollers 408. Dur
can be introduced into housing 358 by removing ing counter-clockwise rotation of shaft 364 and
filler plug 365 (Fig. 13).
-‘ cam 40|, that is, when .the carrier belt is being
From housing 358, a substantially linear drive driven to elevate material, rollers 408 are forced
connection extends outwardly along the carrier against plungers 409-, pushing them inwardly
50 to the driving drum for the endless conveyor. against the pressure of springs 4|2. If counter
Shaft 364 (Fig. 12) extends without cover 368, ’ clockwiserotation of cam 40| ceases, or if clock
through seal 31| seated in cover 368, and has wise rotation _thereof starts, plungers 409 urge
coupling member- 312 secured on the tapered rollers 408 into locking position, thus effectively `
end thereof by nut 313. Coupling member 312 preventing backward movement of the carrier
belt and the driving train therefor.
55 has internal teeth meshing at 314 with comple
mentary teeth on- coupling member 316 secured
To lubricate the' brake means, trough 4 I3 (Fig.
on the tapered end of shaft 311 by nut 318. 13) is suitably mounted in housing 358 to re
Collar 319, seated on a reduced portion of cou
ceive a part of the introduced lubricant, which
pling member 316, is secured by suitable cap part is conveyed by trough 4|3 to passage 4|4 in ‘
cover 368 which extends beyond bearing 366.`
60 screws to coupling member 312 to maintain «the
connection therebetween. To prevent the entry Passage 4| 6 (Figs. 12 and 13) is formed in cover
of-any deleterious matter within the connection 368 above the bottom, to return excess lubricant
between shafts 3,64, 311, bellows 38| is .secured to housing 358.
by spring clips 382 to coupling member 316 and
collar 319.
Shaft 311v (Fig. 5) is suitably journaled by
bracket 386 on post 46 and has universal con
nection 301 (Figs. 2- and 5) with telescopic shaft
386.' Shaft 388 (Fig. 2) has universal connection
'389 with telescopic shaft 39|, suitably mounted
0n upper section 20| and connected by coupling
v392 to gearing in housing 393 to drive the drum
at the outer lend of the carrier.
It is seen, therefore, that a simple and direct
7a drive is provided
from the engine to the driving
The constantly running drive for the power
control mechanism’will now be described.
provide a drive for the power control4 mecha- ,
nism, which is completely independent` of the
clutch control `drive and the carrier belt, av drive
shaft is provided connected to the crankshaft.
This drive shaft extends through. the hollow 70
clutch driven shaft 33| _and has a driving con
nection to the power control mechanism. Drive
shaft 42|A (Fig.- 12) has integral gear 422 at its
rear end meshing with »a suitable internal gear
formed in flywheel 323,- to provide a 'constant 715>
2,109,794 _
pedal 416. îli’ootl pedal 416 is pivoted at 411 on
drive connection therefor from the . engine.
Shaft 42| extends through tubular shaft 33|,
and outer splined end 423 thereof `is engaged
with internal splines in worm 424, supported in
respective bearings 425, 426 in bosses 421, 428
of auxiliary housing 358. Worm 424 (Figs. 12
post 4I, and is connected by rod 418 to lever 419 .v
pivoted at 48| on angle ‘1|'and having clapper
end 482 for striking gong. 483 to signal the oper
ator of the draft vehicle. " Lever 419 vis spring-held
in the position illustrated.
To the right of op--
and 13) is engaged with worm wheel 43| Von ver
erator’s seat 41| (Fig. 2), engine throttle control
tical shaft 432, journaled by suitable bushings in
lever 485 is provided. .
boss 433 of auxiliary housing 358- and in boss 434
10 of cover 436 secured to said housing.` Shaft 432
extends through cover 436; and the entry of
deleterious matter past such shaft is prevented
by seal 431, seated in cover _436 and engaging
shaft 432. Shaft 432 (Fig. 5) has universal con
From the foregoing description, it is seen that
all the controls for operating adjustments of the 10
grader are grouped conveniently around the op
erator’s seat, and can be manipulated by an op
erator in the seat. The arrangement contributes
to efiicient operation, as the operator can con
‘_ serve his energy and maintain a close watch on
15 nection 44| with shaft 442 extendingupwardly the operation of the carrier and the plow, making
within gear box 238 of the powercontrol mecha
all adjustments quickly and easily without exer
Thus a direct, constantly running drive is>
provided from the front end of the engine to the
` ` Modified construction
Figs. 16 through 18 illustrate an elevating grad 20
sisting of shafts and gearing completely housed. y er which is generally similar to that illustrated in
The power control mechanism will now4 be de
Figs. 1 through 15, and which will be described
20 power control mechanism, the entire drive _con
scribed generally in connection with the adjust
only insofar as it differs from such modiñcation.A
. ments of the carrier and the plow. Fig. v15 indi- . This type of grader does not have the power plant .
25 cates schematically the drive from the power unit - thereon, and can be employed in combination
through the carrier belt and through .the power . with a power take-off on the draft vehicle. Cer
control mechanism, similar parts being numbered
similarly. As described above, shaft 442 extends
tain details in frame construction and mounting
within housing 238 and has bevel gear 446 se
The grader is provided with a frame construc
cured thereon, meshing with opposite bevel gears
441 journaled on shaft 448. Integral with re
spective bevel'gears 441 are opposite spur gears
449 forming a part of opposite trains of inter
meshing spur gears rotatably mounted about a
35 plurality of shafts 448. Each shaft 4‘48 has cen
tral splined portion 45| slidably and non-rotat
ably engaged by double faced clutch element 452
adapted for engagement with clutch elements 453
on associated spurV gears 449, to transmit a drive
to associated shafts 448 in either direction by.virtue of the intermeshing of spur gears 449. Each
clutch element 452 is controlled by a fork 454 and
rod 456 from hand control lever 451.
From each of shafts 448 (Fig. 15), a drive ex
45 tends without housing 238 to respective shafts
also obtain.
tion, consisting of tubular members, which is 3o
supported to provide flexibility in maneuvering
and to obtain uniform weight distribution. The
endless conveyor and the power control mecha
nism are driven by a power take-off from the
draft vehicle, which is not shown.
35 .
The frame (Figs. 16 and 1'1) includes arched .
tubular side frame members 50|, 502 which are
fabricated by welding together at 504 the flanges
of opposite angles 503 (Fig. 17). At their front
ends, side frame members 50|, 502 are joined by 4,0
plate 506 and bolster 501 secured to the respec
tive top and bottom faces of .side members 50|,
502. The frame is otherwise similar to the con
struction illustrated in Figs. 1 through 15.v
A universal supporting connection is provided 45
231, 245,'256, controlling adjustment of the car
from the frame to thefront- wheel- and axle as
rier, and to shaft 29| having a driving connection fsembly, to allow oscillation of the assembly with
with shaft 28| and controlling adjustment of the respect to the frame in_vertical and horizontal
plow. 4It is to be noted that the drive foreach planes. Bolster 501 has vertically apertured boss
adjustment is transmitted to a 'self-locking worm 508, in which kingbolt 5| I is secured. At its low 50
and worm wheel _gearing enclosed in the respec-v er end, kingbolt 5|| has ball portion 5|2 seated>
tive housings referred-to in the preceding descrip
in semi-spherical socket 5|3 formed iíi casting or
socket member 5|4. Casting 5|4 is mounted in
Operator’s station
The arrangement of the operator’s station as
disclosed herein provides an operator’s seat with
any suitable manner at the center of axleq5|5
which-is generally similar to axle |0| described> 55
above. Collar 5 | 6 isl secured by suitable fastening
bolts to casting 5|4 around ball portion 5|2,- and
respect to which the controls for all operating ad- , the inner surface thereof forms a continuation
justments are conveniently grouped. The group
of socket 5|3; Thus, a universal connection‘is
ing is such that all operating adjustments can be provided for supporting the frame on the front
made ‘by an operator sitting in the operator’s wheeland axleÍ assembly at the center thereof to
seat. In addition, a clear view of the plow and - provide a wide range of oscillation for the assem- the carrier is provided as well as to the operator bly with respect to the frame in both horizontal „
of the 'draft vehicle for signalling.
and. vertical planes, and to distribute the weight
Operator’s seat 41| (Figs. 1, 2, and 5) is mount
ed by bracket 412 on side frame member 2| to the l
rear of platform 81in longitudinal alignment
with the plow and the pick-up end of the- carrier.
As noted above, clutch control lever 341 is posi
tioned immediately to the left of seat 41|, and
hand control levers 451 and gear box 238 are
’ mounted immediately to the right and forwardly
of seat 41|, by bracket 413 (Figs. 2 and 5). Plow
control lever 286 is positioned in front of the op
75 erator’s seat, as 'are brake pedal 290 and foot
equally between the two front wheels. 'I'his type 65
of universal connection can also be employed in,y
place of the first. modiflcation‘described.
The rear wheel and axle assembly is substan
tially -identical in construction withv that illus
trated in’Fig. 8, differing therefrom only by in 70
corporation of counter-balancing lweight means
«which serves the same function .with respect
to thev outwardly extending end of the carrier as
the power unit in the ñrst modification. -Left `
rear wheel 52| (Fig. 16) Vis similar in construction 75,
to left rear wheel |12 (Fig. Sil-and has intro
duced through plug |13 (Fig. 16) a’mass of a
suitable heavy material such as concrete, indi
cated at 522. By filling the wheel with concrete
or the like, the weight of the Wheel acting ad
jacent the left end of the axle serves to counter
balance the weight of the extending end of the
For driving the conveyor and the power control
mechanism, power take-od shaft 526 (Fig. 16)
extends rearwardly from a draft vehicle, not
shown, and has universal connection _521 with
shaft 528 journaled in bracket 529 and housing
53| on the frame.
At its rear end, within hous
ing 53E, shaft 528 (Fig. 18) has bevel gear con
nection 532 with shaft 533 which 4is suitably
journaled in housing 53€.
From shaft 533, a constantly running drive is
transmitted to the power control mechanisms and
20 a clutch controlled drive is transmitted to the
endless conveyor. At its left end, shaft 533 has
bevel gear connection 534 with vertical shaft 53@
(Figs. 16 and 18) which extends upwardly out
of housing 53| to gear box 236 (Fig. 1) of the
power control mechanism, similarly to shaft 442
(Fig. 4). At its right end, shaft 533 (Fig. 18)
has clutch element 53?, shiftably and non-ro
tatably mounted thereon and adapted for engage
ment with complementary clutch element 535
30 integral with shaft 539. Shifting movement of
clutch element 531 is accomplished by means in
cluding fork 54i, engaging an annular groove
therein and mounted on shiftable rod 542. Rod`
542 (Fig. 16)- extends without housing 53( and
35 is connected by link 543 to hand control lever
54d mounted for oscillatory movement on the
frame adjacent the operator’s seat. Movement
of lever 546, therefore, controls the transmission
of a drive to shaft 539 which extends to the right
40 from housing 53| , being journaled in housing
546 on the frame and having universal connec
tion 381 with shaft 388. As previously described,
shaft 388 is connected to the driving means for
the endless conveyor belt.
means; a power unit on said frame including an
engine at the rear of said carrier, and power
transmitting means at the front end of said en
gine and at the rear of said carrier; a substan 10
tially linear -drive connection from said power
transmitting means to~ said conveyor and extend
ing along the rear side of said carrier; and a '
substantially 'linear drive connection from said
power transmitting means to said power control
means; said drive connections consisting essen
tially of shafting and housed gearing.
3. In an elevating grader; a frame; a carrier
including an endless conveyor; adjustable means
mounting said carrier on said frame; power con
trol means for adjusting >said adjustable means;
power transmitting means at the rear of said
carrier; said power transmitting means including
a housing, a plurality of driving shafts extending
from within to withoutsaid housing, and means
Within said housing connecting said shafts to a
source of power; and shaft connections without
said housing from said shafts to said conveyor
and to said power control means.
4. In an elevating grader; a frame; a carrier 30
including an endless conveyor; adjustable means
mounting said carrier on said frame; a power
unit on said framefincluding an engine at the
rear of said carrier, and power transmitting
means at the'front end of said engine and at 35
i 1e rear of said carrier; said‘power transmitting
means including a housing secured to said engine, »
a driving shaft extending from within to with
out said housing, and means within said _housing
connecting said shaft to said engine; `means With 40
-out said housing connecting said shaft to said
conveyor; and means within said housing asso
ciated with said shaft for preventing reverse
movement of said conveyor. ,
Therefore, I claim as my invention:
l._ In an elevating grader; a frame; a carrier
including an endless conveyor; adjustable means
mounting said carrier on said frame; power con
5. An elevating grader constructed to provide
ease of maneuvering and substantially uniform
ground pressure on all the ground supports there
for, comprising a frame, a carrier for plowed
material extending transversely of the frame and
projecting beyond one side of the frame, an en 50
gine for driving said carrier _located at the rear
of said carrier and at the side of said frame
opposite to said projecting carrier side, a power
control .unit for adjusting said carrier and located
trol`means for adjusting said adjustable means;
above the crank shaft of said engine, a sub
It is seen, therefore, that .the modified con»
struction described above is generally similar to
that shown in Figs. 1 through 15, and obtains
substantially the same advantages as to weight
distribution and ease in maneuvering and in
connection from said power transmitting means
to said power control means.
2. In an elevating grader; a frame; a carrier
including an endless conveyor; adjustable means
mounting said carrier on said frame; power con
a power unit -on said frame; including an engine
at the rear of said carrier, and power transmitting
means at the front end of said engine and at the
rear of said carrier; a substantially linear drive
connection from said power transmitting means
to said conveyor; and a substantially linear drive
stantially linear drive extending upwardly from
the front end of said engine to said power con
trol unit,-and a substantially linear drive from
said front end of said engine to saidcarrier, and
extending substantially parallel to said carrier. 60
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