US967656A - Road-grader. - Google Patents

Description

O. A. NESS.

ROAD GRADER.

APPLICATION TILED 001222, 1909.

967,656. Patented Aug. 16,1910.

3 SHEETS-411E111 2.

22 6 c By W W ATTORNEYS O. A. NBSS.

ROAD GRADBR.

APILIOATION FILED OOT.22,1909.

Patented Aug. 16, 1910.

3 SHEETS-SHEET 3.

J h w m T E N6 N Er H WM m l/ T aw A k 0V! B OLE ANDREW NESS, OF ZUMBROTA, MINNESOTA.

Specification of Letters Patent.

I Application filed October 22, 1909. Serial No. 524,019.

ROAD- GRADER.

Patented Au 16, 1910.

and across the path traveled by the same.

To on whom it may concern:

' Be it known that I, OnnAnmmw Nsss,

.a citizen of the United States, and a resident of 'Zumbrota in the county of Good hue and State of Minnesota, have invented a, certain new and useful Road-Grader, of which the following is a full, clear, and exact description.

The principal objects which the. present invention has in view are: to provide a machine whei'cin a road bed may be leveled and rolled simultaneously; to provide, a mechanism wherein the excess material constituting the surface is conveyed to, and deposited in the path of a ressure roller; to provide a mechanism of t e character mentioned, the area of o eration of which may be varied at will; and to provide a mechanism for manipulating the various parts constituting the grader,

One embodiment of the present invention is disclosed in the construction illustrated in the accompanying drawings,

wherein like characters of reference indicate corresponding parts In all the views.

Figure 1 1s a plan view of a grader constructed in conformity with my invention; Fig. 2 is a sectional rear view of the grader wings, taken on the line 22 in Fig. 1; Fig. 3 is a plan view of the platform and device for manipulating the grader wings; Fig. 4: is a longitudinal sectional elevation taken on the line 4.4 in Fig. 1; Fig. 5 is a 4 view similar to Fig. 4, showing the forward end of the grader wings raised from surface contact with the ground; and Fig. 6 is a view similar to Figs. 4 and 5, showing the grader wings completely raised from surace contact with the ground.

The body of the machine is carried u ion a roller 7 and a forward caster wheel 8. The frame com rises principally side bars 9 upon which t c brackets 10 carrying the journals for the axle ll of the roller 7 are mounted. At the rear the side bars 9 are conhected b a cross brace 12, while at the front the side bars t) are converged, and bolted to a post 13 in which the pivot mounting of the caster wheel. 8 is formed.

The roller 7 is of any desired construction and is provided with a scraper 14 susnded from the brace 12 by springs 15.

The side bars 9 are braced forward of the extends in line with the axle of the roller 7 This leveler operates to more evenlyv dis tribute such dirt as is delivered in the path of the roller 7 by the grader win s, hereinafter described. The leveler is raced by arms 18 which are mounted upon the side bars 9.

The leveler is raised from the ground by means of a bell crank lever 19, mounted.

upon the rod 16. The lever 19 is connected tothe leveler 17 by a liftin rod 20 and to a lever 21 by a connecting rod 22. The lever j 21 is held in position by a hand grip detent 23, which plays in the teeth of a toothed quadrant 24 secured upon the side bars 99.

The platform 25 is constructed of any suitable material, and is preferably in the shape shown in Figs. 1 and 3 of the drawings. The pur ose of the platform is to provide a stan ver 21 and hand wheels 2626 and 27 and 28.

for the driver of the ma-' chine, and to furnish mountings for the le- '80 The grader wings above mentioned aresimilar-in construction on both sides of the center of the machine, but for the c0nven ience of description, one only will be de; scribed, the designating letters being duplicated on both constructions. The two pairs; wings are connected at their rearward ends by a connecting bar 29, to which they are joined by means of cars 30, which are perforated to register with perforations 31 formed in the said connecting bar. When so registered, a cotter 01' other suitable pin is driven through the ahned perforations,

and the lateral adjustnient of the wings beconic fixed. The rod 29 is steadied and maintained in position by a brace 32, which is suitably pivoted to the said rod and to one of the side bars 9, .9. This construction permits the rise and fall of the rod 29 but maintains the said rod in its lateral location;

V The wings are suspended at the rear end 37 from'the ratchet'36, the post 35 may be rotated to lower or raise the rear ends of the grader wings, as desired.

The forward end of the win 5 is carried u on caster wheels 38, mounte upon suit- 1e spindles 39 which are seated in suitable vertical bearings set in the carryin truck bars 40. Each truck bar 40 is brace in relation to the grader wings by a rod 41,

which is pivotally mounted at 42 on the rearmostgrader wing The grader wings 43 are formed as elongated scoops or grading shovels, and are braced in their parallel 45, to which a bell crank 46 is connected.

The bell crank 46 is pivotally mounted on the truck bar 40, and the upper. end is connected with a pull rod 47, engaged by a chain 48, which is adapted to be wound upon a spool 49 on a post 50. The post 50 is provided with a ratchet 51 and a pawl 52, to hold the said 0st in position when the chain 48 is wound post 50 carries the wheel 26 and is rotated thereby.

When the post 50 is rotated to wind the chain 48, the bell crank lever 46 is rocked to raise the outwardly extended arm connected by the liftin rod with a cross brace 53 connecting the parallel wings 43. The wheels 38 remaining on the ground, the height of the truck bars 40 is .unchanged, while the bell crank 46 being moved as above described, raises the outer or forward ends of the grader wings from contact with the ground. With a lifting arrangement such as above described, the grader wings are lifted at either end, or at both ends, by

rotating the posts and 50, these osts be- .ing rotated by means of the hand w eels'26,

26 and 28, as shown in the drawings.

The pairs of grader wings are arranged to be set at angles widel or acutely divergent, and it is to regu ate the outward spread ofthese grader wings, that I have provided adjusting racks 54. These racks are perforated as shown in Fig. 1 of the drawings, to receive a hooked end of pull rods 55, which are provided with eyelets at the forward end to receive a ring 56'. As the rods 55 are connected with the various perforations in the racks 54, it will be seen that the outward extension of the wings 43 is limited to the spread of the rods 55. For instance, if the rods 55 are connected, as shown in Fig. 1 of the drawings, with the racks 54, the wings are in position to spread upon the spool 49. The

to their extreme capacity. Shouldthe hooks in the ends of the rods 55 be now transferred to the perforations in the extreme forward ends of the racks, it will be seen that the extent of the spread of the wings 43 is limited over that shown in the former position. As an adjunct to the rods 55 there are provided connccting, chains 57 which are connected to pull the ends of the wings 43. The machine is drawn over the roadby a team, the single tree whereof is connected toa ring 61.

It is to provide means-for spreading or contracting the wings 43 during the regress of the machine that I employ a ciain 62. The chain 62is extended on both sides of the caster wheel 8 and is guided by sheaves 63 at this 'point. Between the sheaves 63 and a spool 64 upon which both extensions of the chain are wound, are sheaves ,65. The spool 64 is fixedly mounted upon a post 66 which is controlled by the hand wheel 27.

This post, like those heretofore mentioned, is

controlled by a ratchet 67 and pawl 68. The outer ends of the chain 62 are secured to the link 60 to which are likewise secured the draft team and the pull bars 55, 55. When new the'post 66 is manipulated to wind the chain upon the spool 64, the chain 62 and with it the link 60 are drawn toward the platform 25 of the machine. In thus moving the link 60, the tension upon the chains 57 and the draw rods 55 is released, per mitting thc outer ends of the wings 43 to extend farther laterally. There is practically no limit to the lateral extension 'of the wings 43, .although it is designed that the inclination of the same to the line of'draft shall be such as to deliver the loose or surface dirt into the path of the roller 7 It will be seen that by the manipulation ofthe hand wheel 27, the extension laterally of the wings 43 may be changed without stopping oigclianging the speed of the draft team." The position of the connectin bar 29 relative to the roller 7 is maintained by braces 69, pivoted at 7 0 to the cross brace 12 of the frame of the machine, and also pivoted at 71 to the connecting bar 29.

The opei;ation,of a machine .constructed' as shown in the accompanying drawin s is as follows: When passing to the fiel of operation the wings 43 are raised out of contact with the ground. The hand wheel 27 is also manipulated to unwind the chains 62, which permits the pull of the team to draw the wings 43 into close alinement, or

so that the same stand extended in the line of draft. In this position the machine does not occupy more space than an' ordinary wagon. The structure is supported in this position upon the caster wheels 38, the caster wheel 8 and the roller 7. Having arrived at the field, of operation, the hand wheel 27 is manipulated to wind the chains 62 upon the spool 64 to draw the link toward the platform 25. If the road to be treated is wide, the extension of the wings 43 is-according to such width. If, for any reason, such as, the interposition ofa metal manhole head, it is desired to raise the one or the other pair ofwings 43, this is accomplished bymanipulating one or the. other of the wheels 26, to raise the forward ends of the pair of wings desired to b'e lifted. Having passed the obstruction, the wings are dropped to position. If it is desired to contract the wings during the operation, due to a contraction in the road bed, or other cause, this is accomplished by releasing the hand wheel 27 and permitting the draft chains 62 to extend, so that the chains 57 will draw t'heouter ends of the wings 43 toward eac}i",other. The work having been completed, the wings 43 are raised from contact with the ground by the manipulation of the wheels 26 and 28, and the outer ends are drawn together by the manipulation of the wheel 27, permitting the draftchains (32 to extend, and the chains 57 to draw the ends of the wings into close re lation.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent:

l. A road grader, comprising a plurality of grader wings extended in inclined 'position to the line of draft and adapted to deliver the loose dirt to the center of said grader, and a pressure roller mounted to track in the space to which the said dirt is delivered.

2. A road grader, comprising a plurality of grader wings extended in inclined position to the hne of draft, means for changing the inclined position of the said wings, and a pressure roller mounted to track in the space to which the said wings deliver the dirt.

3. A road grader, comprising a plurality of grader wings extended in inclined position to the line of draft, means for changing the inclined position of each f the said wings independently, and a pressure roller mounted to track in the space to which the said wings deliver the dirt.

4. A road grader, comprising a plurality of grader wings extended laterally from the line of draft, hitching tackle for drawing the said grader, connecting members for attaching the said wings to said hitching tackle, and means for extending and contractin the said hitchin tackle in the line of draft, to extend and contract the lateral separation of the forward end of said wings.

5. A road grader, comprising a plurality of grader wings extended laterally from the line .of draft, means for supporting said wings, embodying wheeled trucks located at the forward ends and a pressure roller located at the rearward ends, said wings being contracted to deliver the dirt in the ath of the said roller, and means for raise mg the said grader wings from contact with the ground.

6. A road grader, corn rising a plurality of grader wings extende laterally from the line of draft, means for supporting said win s, embodying trucks'located at the forwar ends'mounted on caster wheels and a pressure roller located at the rearward ends to track in the path of the dirt delivered by said wings, levers mounted on the said trucks for lifting the said forward ends of the said wings, and means for independently operating the said levers on said trucks.

7. A road grader, comprising a plurality of grader wings extended laterally from the line of draft, means for supporting said wings, embodying trucks located at the forward ends and mounted on caster wheels and a pressure roller located at the rearward ends to track in the path of the dirt delivered by' said wings, lifting devicesmounted upon said trucks and frame carried by said roller, means for operating said lifting devices from a central point, and means for moving the outstretchedends of said wings toward each other and in line withsaid roller.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

()LE ANDREW NESS. Witnesses L. M. LARSON,

E. H. Emma.

Images