US1710477A - Grading and loading apparatus - Google Patents

Description

Aprilzs, 1929. E, R HENRY ET AL 1,710,477

GRADING AND LOADING APPARATUS April 23, 1929- E. P. HENRY ET Al.

GRADING' AND LADING APPARATUS 5 Sheets-Sheet Filed March 17, '1924 April 23, 1929- E. P. HENRY ETAL 1,710,477

GRADING AND LOADING APPARATUS Filed March 17, 1924 5 Sheets-Sheet 3 INVENTORS ROLL/1 No@ ro/v ATTORNEYS April 23, 1929- E. P. HENRY ET AL GRADING AND LOADING APPARATUS Filed March l?, 1.924

5 Sheets-Sheet G INVENTORS oLLA fl. NOK To/v A/eoPHE/VRY BY fr@ ATTORNEYS- Prl|23I929- E. P. HENRY ET AL GRADING AND LOADING APPARATUS Filed March 1'7, 1924 5 Sheets-Sheet 5 A INVENTORS ATTORNEYS Patented Apr. 23, 1929.

y lUiviED STATES EDWARD P. HENRY AND ROLLA A.

TO WESTERN WHEELED SCRAPER COMPANY, OF AURORA, ILLINOIS, A

` TION 0F ILLINOIS.

MORTON, 0F LONG BEACH, CALIFORNIA, ASSIGNORS 'CORPORA- CCrRADIITGr AND LOADING APPARATUS.

Application filed March 17, 1924. Serial No. 699,860.

. l. y n

Our invention relates to excavating apparatus for grading a roadway preparatory to subgrading for the paving of streets, and the loading of a vehicle with 'the earth removed from the roadway during grading.

It is a purpose of our invention'to providea grading above described character which isl adapted for movement along a roadway, and which operates while traveling to loosen the earth for a predetermined depth and elevate the same'to a point where it can be discharged' into a truck.

It 1s also a purpose of our invention to provide a grading and loading apparatus which f is designed to be drawn by a motor truck which receives the earth discharged from the apparatusfthus utilizing the power, of the truck for moving the apparatus so that when the truck is filled it can be disconnected from .the apparatus and a second truck connected to continue the grading operation 'and' with it the loading of the second truck. In this manner a single apparatus is capable of successively loading a pluralityof trucks, and of utilizing the power of the trucks in moving the apparatus along a roadway.

A .further purpose of our inventibn resides in the provision of a grading and loading apparatus the transverse dimensionsof which are such as to permit of its operating in narrow streets, alleys and highways or in any thoroughfare through which the truck drawing the apparatus is capable of traveling.

Another purpose of our invention is to provide a. grading device adapted to ybe set into Aoperation by forward movement of the apparatus, and a device which is adjustable to occupy any desired position for grading to any predetermined depth, and to support `the weight of the apparatus when' necessary to insure proper operation of the device.

Further, our invention provides a pair of conveyors operating in conjunction with the grading devicev to elevate the earth loosened for the purpose of loading a truck, the conveyors including a subsidiary conveyor. which is flexibly supported to respond to roadway undulations and thus prevent injury to the main conveyor andits support, yet maintaining proper operative relation to the main conveyor and to the grading device.

To will describe only one form of grad.-

and loading apparat-us of the ing and-loading apparatus embodying our l invention, and will then point out the novel features thereof in claims.

In the accompanying drawings:

Figurel is a view showing in side elevation one'form of grading and loading apparatus embodying our invention;

Figure 2 is an enlarged fragmentary view showing in side elevation the plow side of the apparatus shown in Figure '1;

Y Figure 3 is a View showing in rear end eleyation the apparatus shown in the preceding views;

F gure 4 is a vertical sectional view taken on the line 4-4 of Figure 3;

A Figure 5 is a fragmentary plan view of the rear end of the apparatus shown in the preceding views;

Figure 6 is a sectional view ltaken on the line 6 6 of Figure l;

Figure 7 is a view, partly in section, showing the plowside of the subsidiary conveyor comprised in the apparatus;

Figure 8 is a fragmentary plan view of the lower end of 'the main conveyor comprised in the apparatus;

Figure 9 is a fragmentary view showing in side elevation the' lowerend of the main conveyor;

Figure l0 is an enlarged vertical sectional View of the yieldabl'e connection between the grading device comprised in the apparatus and the means for adjusting the forward end of such device.

Similar reference characters indicate corresponding parts in-each of the several views of the drawings.

Referring specifically to the drawings. and particularly to Figure 1, our invention in its present' embodiment is shown as comprising a vehicle chassis or frame C, of rectangular ing of the latter, and this mechanism includes Cil a steering wheel D arranged at one side of the vehicle, as clearly shown in Figure 1, and

vin advance of a seat F adapted to be occupied by one of the operators of the apparatus.

' Secured upon the forward'end of the chassis C is an arch A which is designed to pivotally support the main conveyorof the apparatus designated generally at`M.A This main conveyor comprises in the present instance spaced parallel beams 15, which are rigidly connected at regular spaced intervals along their lengthI by means of channel irons 16. Also arranged at regular spaced intervals along thelength o 'f the beams 15 are groups of rollers 17, which, as clearly shown in Figure 6, are vrotatably mounted inbrackets 18 secured to cross railsA 19. The rollers of each groupare arranged to produce' a concave supporting surface over which an endy less belt 2O is adapted to move, the rollers serving to support thebelt in trough formationthroughout its carrying length so that the earth deposited thereupon cannot scatter and spill over the sides but is held in a compact furrow to permit its being elevated at a much greater angle than otherwise. This belt20 is trained about a'lower or driven roller 21 and an upper or driving roller 22, the latter being adapted to effect continuous movement of the belt, with the upper stretch thereof moving upwardly over the groupsof rollers 17, while the low,`r -stretch moves downwardly over idlers 23 journaled in brackets 24, as clearly shown in Figure 6.

The main conveyor as a unit is supported to normally occupy an inclined position as illustrated in Figure 1, so as to be capable of rocklng movement to permit vertical adjustment of he lower end of the conveyor. To this end,

plates 25 are secured tothe confronting sides I Y deslgnates generally a subsidiary conveyor' of the beams 15, and jounaled in these plates are stub shafts 26 secured to the arch A. The

main conveyor is thus mounted to swirl about the stub shafts as a center, and it w11 beI particularly noted that the mounting is in advance of the medial point of the conveyor so that lt normally tends to occupy an `inclined position.

For driving' the belt 2O of the main conveyor thel driving roller 22 is actuated by a conventional form of motor T suitably supported on the chassis and Aprovided with a vari-able speed transmission V which is opl22by an extensible connection 30% eratively connected to the driving roller 22 by'means of shafts 27 and 28 connected to each otherby a universal joint 29 lsupported on the arch A.v TheA other end of the shaft 27 is connected to the transmission V through a universal joint 30, while the upper end-of the shaft 28 is connected' to the driving 'Eller ese l shafts and joints ermit driving ofthe roller 22 Airrespective o the position of the main conveyor M.

For the purpose of adjusting the lower end fof the conveyor M so that it may occupy proper position with respect to a roadway, we provide a pair of chains 31 connected to the conveyor at their lower ends and to a shaft 32 at their upper ends. a This'shaft 32`.

is adapted to be rotated in either direction to wind on unwind the chains thereupon and to thereby raise or lower the lower end of the conveyor to the desired level. This shaft 32 'is provided With'a worm gear 33 (Figure which constantly -meshcs with a worm 34 As illustrated to advantage in Figures 1, 3 t

and 5, the lower end of the main conveyor M is provided with a hopper 38 into which earth from a subsidiaryfconveyoris adapted to be discharged on tothe endless/Ab hopper serves to guide the earth onto the belt and to prevent discharge of earth from the lower end of the belt. Guard rails 39 supported on brackets 40 (Figure 6) are arranged above and at the opposite edges ofthe belt 20, which serve to confine the earth J the belt, as will be understood.

As shown in Figures l and 9, the lower ends of theV side beams 15 of the main conveyor are tapered in width, and secured to' these vtaperedends is a tie plate 41 to the lower end of which is secured a shoe 42. The lower end of the plate 41, as well as ,the shoe 42, is curved so that the latter, when in engagement with the roadway, will'not impede the progress of the apparatus and at `thesameftime will prevent wear of the beams themselves. Referring 'now4 to Figures 3, 5 and 7, M

endless belt 46 which rotates in such .direction as to carry the earth upwardly of the conveyor, discharging the saine onto 'the main conveyor. The driving roller 45 is operatively lconnected to a vertical shaft 47 through the medium of a Splined connection 48'wliich permits of the necessary vertical elt 20. This The upon

izo

movement between the shaft and the roller without affecting the. driving connection between the two. v

` ries a wear plate The upper end of the vertical shaft 47 isi operatively connected to a horizontal shaft 49 (Figure 3) through suitable gearing and ,a universal joint 50, the latter serving to allo'w the .necessary lateral shifting movement of the shaft 47 to permit the required movement of the .subsidiary conveyor. The shaft 4). in turn, is d riveii from the transmission V through the third shaft 51, as shown inl upon the belt during transit guard plates 53 extend upwardly from-the opposite 'sides of the conveyor frame as clearly shown in Figure V7. The lower end of the conveyor frame is providedwith an angle bar 54 which car- 55 .adapted to have Contact with the roadway during the operation ot the apparatus. As shown in'Figure 5, the lower forward side of the subsidiary conveyor is provided with a deflector plate 56 which is designed to co-operate with the grading device in directing earth onto. the belt of the subsidiary conveyor. l

As the lower end of the subsidiary conveyor is adapted to have continuous engagement with the roadway', it is necessary that the conveyor be flexibly 'supported to respond to the undulations of the roadway and thus prevent injury to the conveyor and the associated parts. and at the same time to 'maintain a definite relative position with respect to the main conveyor M. To this end we have provided the lmounting shown to advantage in Figures 7 8y and 9, which` in the present instance, comprises a strap iron-l 57 extending ,transversely and upwardly. with respect to the lower end of the main conveyor. 'lhe upper end of the strap 57 is connected to straps 58 and 59 which serve to rigidly support a pin 60 in definite position with rcspecct to the main conveyor.

vtoi-ined on the upper end of a strap 62 secured tothe main conveyor M is disposed in longitudinal alineinent with the pin 60, as

indicated by the dot and dash lines in Figure t). The pin 61 extends into a slot 68 of a plate (S4 secured to the subsidiary conveyor frame 48, as'clearly shown in Figure 7. The other pin 60 extends into a slot 65 of a plate 66 on the. opposite edge of the subsidiary conveyor frame. y Y

lt is by means of these pin and slot connections just described that the subsidiary conveyor M is capable of' limited longitudinal movement withoutdisturbing the posit-ion of the main conveyor M. it being remembered that. the subsidiary conveyor is free to move,

longitudinally by virtue of the splined'and universal connections between the driving upon a plate A second pin 61- roller and the shafts for actuating the latter. These pin and slot connections also serve to allow limited vertical movement of the lower end of the main conveyor M without disturbing the relative position of theV subsidiary conveyor.

The grading device embodied in our apparatus is designed to plow the roadway to a predetermined depth, depending upon theA adjustment of the device, and under the travcling movement of the apparatus to elevate the earth plowed so that it may be depositedv upon the subsidiary conveyor M. rlhe device for accomplishing these functions comprises in the present embodiment a heavy duty plow having a blade 67 pointed at its forward end and widened and curved inwardly at its rear end, as clearly shown in Fig.

"ure 5, so as to direct the earth onto the belt of the subsidiary conveyor. This plow blade is secured to an (arm 68 depending from a bracket 69 secured to one of a pair of ch annel bars 7 O, constituting the plow beam. It will be noted that the forward edge of the arm 68 is relatively sharp' to provide a cutting edge 68a for the purpose of cutting the earth along the outer side of the furrow formed by the plow. arm 68 (Figure 2)' and connects the latter with a second arm 72 depending from and interposed between the bars 70. A main supporting plate 7 3 depends from the plow beam .70 serves to support a gauge wheel 74 arranged in advance of the plow 'blade and adapted to ride upon the roadway for partly regulating the depth of penetration of the.

This wheel 74 is supported 75 loosely itted between the channel bars and adapted to be adj ustably secured therebetween by in'caiis of a pin 76 which can be extended through any one of a plurality of openings formed in the bars and plate. such that not only plow blade.

a vertical but a horizontal The Aarrangement of the openingsis A bar 71 extends rearwardly from the andis secured to the bar 71 between the adiustment of the gauge wheel can be secured.

The plow blade 67 and its supporting means, although being capable of vertical and horizontal ad'ustment. are adapted to be securely held against longitudinal movement 'iii either direction, and to this end a rod 78 is pivotally and adj ustably connected to a plate 79 secured between the channel bars 70, as clearly shown in Figure 2. The forward end ot the'rod 78 is connected to a depending bracket 80 (Figure 1) through a turnbuckle 81 whereby proper tension may be exerted upon the rod so that it will properly function to secure the plow and itssupporting means against rearward movement with respect to the apparatus. A chain 82 or its equivalent is connected to the rear ends of the beam 70 and to a bracket 83 depending from the chassis C. This chain may also be adjusted so as to secure the plow and its supporting means against forward movement with respect tol the apparatus.

' To effect vertical adjustment of the rear end of the plow and its supporting means, and to positively hold the plow in juxtaposition to the vehicle frame nd the auxiliary conveyor, we have providld a substantially J-shaped beam or channel bar 84 which, as shown in Figure 3,k is ar` anged transversely of the apparatus beneat the chassis C and with its upper end pivotally connected to the chassis through the medium of an I-strap `85 and a U-bolt 86. The lower end of the beam 84 is also provided with an I-strap 87 through which extends a U-bolt 88 carried by a bracket 89 secured to the arm 72. This beam '84 is 20 adapted to belowered or elevated through the medium of a connecting rod 90 pivotally connected, as at 91, to the beam, and having a crank connection 92 with agworm gear 93 fixed to a shaft 94. A worm 95 meshes with 25 the. worm gear 93 and is fixed to a shaft 96 adapted to' -be rotatedv by a hand wheel 97, whereby the gear 93 is rotated in one direction or the other to lower or elevate the rod 90 to vary the vertical position of the beam 84. By virtue of the connection between the plow supporting means and the beam 84 it will be clear that vertical adjustment of the latter will effect a corresponding vertical adjustment of the rear end of the plow beam.

To effect vertical vadjustment of the forward end or point of theplow a pressure or resilient connection designated generally at is pivotally connected to the plate 79 and to a crank arm 98 on one end of a' shaft 99. The

shaft 99 is provided with a worm gear 100 meshing with a worm 101 fixed to an inclined shaft 102. The shaft 102 is also provided with a beveled pinion 103 which constantly meshes with a beveled ring gear 104 (Figure 3) fixed to a hand wheel 105. The gear 104 and wheel 105 are loosely mounted on 4the shaft 96 so that they can be rotated indel pendently of the shaft to effect rotation of the \shaft 102. With the rotation of the shaft 102 the crank arm 98 is rotated to lower or elevate the forward'end of the plow beam 70 through the medium .of the pressure connection K.

The resilient connection K is designed for the purpose of exerting a constant but yieldying pressure on the forward end of the plow beam toassist in holding the gage wheel in firm contact with the groundto secure an even depth offurrow, particularly when the 6o gage wheel and vehicle wheels are traveling -in different or uneven planes As shown in Figure 10 the connection K comprises arod 118 -provided at its lower end with an eye 119 engaged by a U-bolt 120 for pivotally secur- 05 ing the rod to the plate 79. The

rod 118 ismovable in a cylindrical sleeve 121 and is centered therein by means ofan enlargement 122 into which latter extends a screw y123 movable in a slot 121a of the sleeve for preventing rotative movement of the rod in the sleeve. The upper end of the-rod 118 extends into a second sleeve 124 fixedly secured inthe upper end of the sleeve 121. A guide member 125 is secured within the sleeve 121 beneath the sleeve 124 and slidably receives the rod 118. The upper end of the rod 118 is threaded to receive nuts 126 which can be adjusted to limit the downward movement of the rod 118 by engaging the member 125. Upward movement of the rod is limited by a flange 126EL formed thereon and providing an abutment toy engage the lower end of the sleeve 121. The upper end-of the sleeve 124 receives a head 127 secured therein by means of a pin 128, and this head carries a fork 129 which is pivotally connected to the crank arm 98 through a pin 130.

The sleeve 121 is supported for vertical .movement by a brace rod 131 (Figure 5) connected to one of the beams of the chassis and having pivotal connection with a bracket 132 embracing the sleeve 121.

A spring 133 surrounds the rod 118 between the enlargement 122 and the guide 125 and operates to normally urge the rod downthe plow beam. It will be understood that the pressure exerted on the rod can be vvaried through an adjustment of the crank arm 98,

of the apparatus can be thrown onto the plow. I

By meansof the resilient connection K and the beam 84,` it will be manifest that either end of the plow can be adjusted downwardly to such an extent as "to actually lift one side of the vehicle and thus apply the weight of one side of the vehicle either to the point or to the heel of the plow, so that the plow point may be forced into the ground irrespective of the impenetrable character of the ground.

As previously stated, the grading device including the plow and its supporting means v wardly to set up the desired pressureupon is also capable of lateral adjustment or side tilting for the purpose ofvarying the angle at which the plow point enters the earth when opening a new furrow. The means for effecting this lateral adjustmentV comprises a strap 106 (Figures 2 and 3) secured to and extending upwardly from the rear endy of the channel bar 70. A connecting rod`107 pivotally connects the upper end of the strap 106 with an operating lever 108 pivoted at'109 so as to effect longitudinal movement of the rod and a resultant lateral movement of the strap, whereby the position of the plow with respect to a longitudinal vertical plane is lcapable of being varied. The lever 108 is adapted to be releasably secured in any adj usted position by means of a hand opera-ted pawl 110 engaging a rack 111.

To brace the subsidiary conveyor M and the beam 84 against rearward movement with respect to the vehicle chassis, while at the same time in no way hampering vertical or lateral adjustment thereof, rods 112 and 113 are provided, the rod 112 pivotally connecting the plate 79 with the angle bar 54 (Figure 5), and the said rod 113 pivotally connecting the bracket 114 secured to the chassis C with the beam 84.

Referring again to Figure 3, we have shown a yoke 115 secured to the plow blade 07 and shaped as illustrated in Figure4, with a slotted I-bolt 116 movable on the vertical portion of the yoke and secured to the angle bar 54. This connection causes the lower end of the subsidiary conveyor to'move vertically with the plow when the latter is lifted, but

nevertheless allows the lower end of the subsidiary conveyor to move vertically without disturbing the position of t-he plow blade and its supporting means, and the conveyor can thus respond to undulations in the roadway, while the plow occupies a fixed position, without subjecting the conveyor and its associated parts to undue stresses or strains. It will be understood that the connection is such as to restrict the vertical movementvof the conveyor only suiliciently to maintain the conveyor in earth receiving position with respect to the plow blade. This connection alsoI allows a limited longitudinal movement of the plow and its supporting means, which is necessary when vertically adjusting one end or the other of the plow; otherwise the yoke 115 would bind within the I-bolt 116, and lock the plow against such adjustment.

As shown in Figure 1, a draft beam 134 is mounted on the forward end ofthe chassis,

and carries a coupling device H,which can be operated to release a coupling pin of a motor truek'by operatlon of a lever L. The

coupling device is to form subject matter of the apparatus, and with the plow blade 67 lowered to penetrate the earth, forward movement of the plow will cause the earth to be loosened and moved rearwardly and upwardly of the plow blade, andfinally deposited on to the belt 46 of the subsidiary conveyor M. Before the apparatus is under way the belts of the main and subsidiary conveyors are set into motion by proper manipulation of the transmission V, as will be understood. With these belts continuously moving, earth deposited upon the subsidiary conveyor belt will be carried upwardly of the conveyor and deposited onto the belt of the main conveyor. The earth deposited upon the main conveyor is carried upwardly and finally discharged from the upper end of the conveyor into the body of the motor truck.' f

After the truck is loaded it is disconnected from the'apparatus and a second truck con. nected to the latter so that upon continued movement of the/apparatus a loading of the second truck can be efected. In this manner any number of motor trucks can be successively loaded with the apparatus, utilizing the power of each truck to the extent of hauling the grading. device or plow.

Although we have. herein shown and described only one form of grading and load- 'ing apparatus embodying our invention, it

is to be understood that various changes and modifications may be made herein without departing from the spirit of the. invention and the spirit and scope of the appended claims.

What is claimed is:

1. A grader and loader comprising' a vei hicle, a p-lowadjustably carried on the vehi-A cle for removing earth" from a roadway, a main conveyor adjustably rsustained on the vehicle, and a subsidiary conveyor movably supported on the vehicle and connected with the plow so that its lower end will move vertically with the plow and may engage the ground and move vertically without disturbing` the position of the plow in response to undulations of the ground, said plow being constructed and arranged to discharge the plowed earth vlaterally on to said4 subsidiary conveyor, said latter conveyor discharging the removed earth to said main conveyor.

2. A gradingand loading apparatus comprising a vehicle, a plow depending from the vehicle, an inclined main conveyor extending longitudinally of and pivoted on the vehicle, Aand asub-sidiary conveyor on and extending transversely of the vehicle, said subsidiary conveyor being mounted'for longitudinal,

vertical and pivotal movements. 3. In a grading and loading apparatus, a

vehicle, a plow ,depending from saidl vehicle,

Cil

conveyor, and having a connection with the main conveyor which permits freedom ofmovement ot' the two conveyors independently of each other' while maintaining a definite relation between the two.

4. In a grading and loading apparatus, a vehicle, a main conveyor mounted on the vehicle to normally occupy an inclined position, and a subsidiary conveyor at an angle to the lower end ofthe main conveyor and normally occupying an inclined position with its lower end adapted to contact with a roadway, said subsidiary conveyor being mounted to permit its lower end to move vertically and the e11- tire conveyor to move longitudinally.

5. A. grading and loading apparatus comprising a vehicle, al plow sustained on the vehicle to move vertically and laterally, means for moving to and securing the plow in any position which it is capable of occupying, a main conveyor fulcrumed between its ends to permit vertical rocking movement thereof, and a subsidiary conveyor having a connection with the main conveyorwhich permits freedom of movement of the two conveyors independently\.of each other while maintaining a definite relation between the two.

` 6. A grading and loading apparatus comprising a vehicle, a plow sustained on the vehicle to move vertically and laterally, means for moving to and securing the plow in any position which it is capable of occupying, a l

vmain conveyor mounted on the vehicle to normally `occupy an inclined position, and a subsidiary conveyor at an angle to the lower end of the main conveyor and normally `occupying an inclined position withits lower end adapted to contact with a roadway, said subsidiary conveyor being mounted to permit its lower end to move vertically and the entire conveyor tomove longitudinally.

.7. In a grading and loading apparatus, a vehicle, a plow mounted on the vehicle for universal adjustment, a main conveyor pivoted on the vehicle, and a subsidiary conveyor for conveying earth from the plow to the main conveyor, both of said conveyors being adapted to contact with a roadway, said subsidiary conveyor being mounted torespond tovundulations in the roadway independently of the plow and main conveyor.

8. In a grading andloading apparatus, a vehicle, a plow mounted on .the vehicle for vertical adjustment, a main conveyor adjustably mounted on the vehicle so as .to respond to the undulations in the roadway, and a subfsidiary conveyor having contact with the roadway and mounted on the main conveyor to move with the latter and to respond to the undulations inthe roadway and independently of the m'ain conveyor.l l

9. In combination, a vehicle, and a conveyor pivoted `on the vehicle so as to occupy an inclined position, with one end adapted to contact with a roadway and free to respond to.

undulations of the roadway, a second conveyor arrangedat an angle to the lower end of the first conveyor, said'second conveyor having one end 'abovthe lower end of the first 'conveyor and the other end in contact with ceive'the dirt from said plow and to convey the same forwardly for dumping into a truck in advance of the grading and loading vehicle and means supporting the plow at one side of the vehicle,.said 4supporting means being adjustably adapted to serve as a rigid strut between the vehicle and plow whereby the cle, a plow, conveying means arranged to reweight ot one side of the vehicle can be applied to or removed from either the point or the heel of the plow.

l1. In combination, a vehicle, a plow, and means for supporting the plowat one side of the vehicle and in adjustable relation thereto, said means including a yielding pressure connection adjustable to vary the pressure exerted by the connection on the plow and to provide a rigid connection when in certain positions. I

12. In combination, al vehicle, a plow, and means for adjustablysupporting the plow on the vehicle, said means including a yielding pressure' connection adjustable vto'vary the, pressure exerted by the connection on the plow and to provide a rigid connection whenA in certain positions. 13. In a grading and loading machine, they combination o f a vehicle, a plow, and means for supporting the plow at one'sideof the vehicle and in adjustable relation thereto, said means including controlling devices. actuatable by the operator while the machine is in operation whereby the' weight of onew llli lside of the vehicle can be applied controllably to the point or heel of the plow.

14. In a grading and loading apparatus,

the combination of a `main conveyor, a subsidiary conveyor pivotally and slidably connected to the main conveyor, a plow connected to 4the subsidiary conveyor for limited lmovement longitudinally and transversely of plow, means for vertically adjustingwthen plow, and a connection between lthe plow to vertical adjustment of the plow and adapted to receive earth elevated by the plow, and means for connecting the conveyor to the plow so that the conveyor will occupy a definite earth receiving position with respect to the plow irrespective of the adjustment of the latter. j

19. Ina grading and loading apparatus, a main conveyor supported for pivotal movement, a subsidiary conveyor pivotally and slidably connected to the main conveyor, and a plow connected to the subsidiary conveyor for limited movement longitudinally and transversely of the subsidiary conveyor.

20. In a grading `and loading apparatus, amain conveyor supported for pivotal movement, subsidiary conveyor pivotally and yprising a vehicle, a plowsustained onthe veslidably connected to the main conveyor, a plow connected to the subsidiary conveyor for limited movement longitudinally and transversely of the subsidiary conveyor, and means for adjusting the plow, including a beam mounted for pivotal movement and hingedly connected to the plow.

21. In a grading and loading apparatus, a mainconveyor, a subsidiary conveyor, a plow, a connection between the conveyors for' maintaining the two in operativ-e relation `but allowing limited independent movement of cach, and a connection between the plow and subsidiary lconveyor by which the two are maintained in operative engagement but free to move independently of each other.

22. A grading and loading apparatus comprising a vehicle, a plow sustained on the vehicle to move vertically and laterally, means for movingsaid plow to different positions and for securing it in thesepositions, a main conveyor fulcrumed to the vehicle to .permit vertical pivotal movement thereof,

and a subsidiary conveyor havingV a connection withthe main conveyor which permits freedom of movement of the two conveyors independently of each other while maintaining a definite relation between the two.

23. A grading and loading apparatus comhicle, means for moving said plow to' different positions 'and for securing it in these positions, a main conveyor supported on the vehicle, anda subsidiary conveyor having a connection withfthe" main` conveyor which permits relative movement between the two conveyors while maintaining a definite relation between the two.

24. A grading and prising a vehicle, a yplow loadingy apparatus comsustamed on the vehicle, means for moving said plow to dif-v ferent positions, and for securing it in these positions, a main conveyor pivotally connected to the vehicle to permit pivotal movement of the conveyor, and a subsidiary conveyor' having a connection with the main conveyor which permits freedom of movement of the two conveyors independently of each other while maintaining a definite relation between the two.

25. In a grading and loading apparatus, a vehicle, a plow mounted on the vehicle for vertical adjustment, a laterally extending conveyor supported for vertical movement to respond to vertical adjustment of the plow and adapted to receive earth elevated by the plow, a secondary conveyor receivingthe Iearth from said laterally extending conveyor and means for connecting the laterally eX- tending conveyor to the plow so that said conveyor will occupy a definite earth receiving position with respect to the plow irrespective of the adjustment of the latter.

26. In a grading and loading apparatus, a vehicle, a plow mounted on .the vehicle for vertical adjustment, a laterally extending conveyor supported for vertical movement to respond to vertical adjustment of the plow and adapted to receive earth elevated by the plow, a forwardly extending conveyor adapted to receive the earth from said laterally eX- tending conveyor, one of said conveyors being adjustable and the other conveyor moving therewith in such adjustment and means for connecting the laterally extendng conveyor to the plow so that said conveyor will be maintained in definite earth receiving p of y sition with respect to the plow irrespective of the adjusting movement of the plow or of the conveyors.

.27. A grading and loading apparatus comprising a vehicle, a plow sustained on the vehicle, means for moving said plow to different positions,` a main conveyor movably supported on said vehicle, a subsidiary conveyor flexibly supported on said vehicle for yielding contact with the ground independently of movement of the plow, means for maintaining said subsidiary conveyor in earth receiving position relative to said plow through a predetermined adjusting range of said plow, and means for maintaining said main and subsidiary conveyors in definite rearth transferring relation while permitting vertical pivotal movement thereof, and a subsidiary conveyor supported on said vehicle for limited'longitudinal movement for maintaining a .definite relation between said two conveyors, said subsidiary conveyor transferring the earth from said grading means to said main conveyor.

30. A grading and loading apparatus comprising a vehicle, vehicle for vertically adjustable movement, a conveyor extending transversely of the vehicle, and means connecting said plow with said conveyor, said connecting means causing upward movement of the lower end of said conveyor plow, but permitting upward movement of the lower end of said conveyor independently of said plow. 1

31. A grading and loading apparatus comprising a vehicle, a plow adjustably supported on said vehicle for vertical movement, a conveyor extending transversely. of saidvehicle with its lower end in earth receiving position relative to said plow, and means for connecting said plow to the lower end of said conveyor, saidmeans causing the lower end of said conveyor to rise with the upward movement of said plow, but permitting upward movement ofthe lower end of said conveyor -independently of said plow.

32. A grading and loading apparatus comprising a vehicle, a plow, means supporting the plow at one side of the vehicle, said supporting means being adjustably adapted to serve as afrigid strut between the vehicle and plow whereby the weight of one side of the vvehicle can be applied to or removed from the plow, a conveyor mova'bly supported on the vehicle with one end "in earth receiving position relative to said plow, and means for connecting said plow to said conveyor, said means causing upward movement ofsaid conveyor with the upward movement of said plow, but permitting upwardv movement of said conveyor independently of said plow.

33. A grading and loading apparatus coniprising a vehicle, a main' conveyor pivotally supported -on said vehicle for vertical pivotal movement, a subsidiary conveyor extending substantially transversely of said main oonveyor and adapted to discharge earth at one end thereof to said main conveyor, and means or connecting thel latter end of said suba plow supported on the with upward movement of said j sidiary conveyor to the adjacent portion of Said main conveyor, said means comprising a slotted connection for maintaining said conveyors in predetermined operative relation duringsthe adjustment of one of said conveyors. l

34. A grading and loading apparatus comprising a vehicle, a plow adj ustably supported on said vehicle, a subsidiary "conveyor movably supported on said vehicle and adapted to receive earth from said plow, said subsidiary conveyor having one end normally resting on the ground, and a main-'conveyor adapted to ,receive earth from said subsidiary conveyor and extending longitudinally of said vehicle.

35. A grading and loading apparatus comprising a vehicle, a plow .mounted on said vehicle, a main conveyor mounted on said vehicle, a su earth from said plow and transferring it to said main conveyor, said subsidiary conveyor being movably supported on the vehicle, a shaft for transmitting a. power drive to said subsidiary conveyor, and an eXtensible connection in saidy shaft for permitting movement of. said subsidiary conveyor.

36. A grading and loading -machine comprising a wheeled vehicle frame, a plow comprising a plow beam, a conveyor extending longitudinally of the vehicle frame for discharging into a secondary vehicle at one end of said grading and loading machine, means for transferring the earth from said plow to said conveyor, ing thel p-low beam tosaid vehicle frame whereby the weight of the vehicle may be utilized to force either end of the plow` down into the ground.

37. A grading and loading machine comprising a wheeled vehicle frame, a plow comprising a plow beam, a main conveyor extending longitudinally of said vehicle frame sidiary conveyor for receiving 1 and means adj iistably connecti for discharging into a secondary vehicle movv ing in advance of said grading and loading machine, a subsidiary conveyor extending transversely 'of said vehicle frame` for transi ferring the earth from said plow to said main conveyor, depth adjusting means adjustably connecting the rear portion of said plow beam to said vehicle frame and operative to utilize the weight of the. vehicle for forcing the heel portion of the plow down into the ground, and separate depth adjusting means adjust-ably connecting the front portion of `chine, a subsidiary conveyor eXtendingtrans- A' toe portion of the plow Versely of said vehicle frame for transferring the earth from said plow to said main conveyor, depth adjusting means connecting the rear portion of said plow beam to said vehicle frame and actuatable from the operators position while the machine is in operation for imposing a portion of the weight of' the vehicle on the heel portion of said plow, and independently operating depth adjusting means connecting the front portion of the plow beam to said vehicle frame and@ actuatable from the'drivers position while the machine is in operation for imposing the weight of the vehicle on the toe portion of said plow. 39. A grading and loading machine comprising a vehicle, a plow adjustable on the vehicle for removing earth from a roadway,

'a main conveyor adjustable on the vehicle and extending forwardly thereof for discharging into a secondary vehicle in front of said grading and loading machine, a subsidiary conveyor adjustable on and extending transversely of said grading and loading vehicle, and means for driving said conveyors irrespective of their adjusted positions.

40. A grading and loading machine comprising a vehicle, a plow depending from and extending lengthwise of the vehicle, a main conveyor pivoted on the vehicle for adjustment about a'horizontal axis and extending parallel to the plow and forwardly of said' vehicle for dumping into a secondary vehicle in front of said grading and loading machine,

and a subsidiary conveyor on said grading and loading vehicle disposed substantially at right angles to the plow and main conveyor for transferring the earth from said plow to said main conveyor.

41. A grading and loading machine com- 40 vehicle, and a subsidiary conveyor extending transverselybf the vehicle and arranged to transfer the earth from said plow to said main conveyor, said subsidiary conveyor being mounted for movement bodily independently of the main conveyor.

EDWARD P. HENRY. ROLLA A. MORTON.

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