US1507552A

US1507552A - Ditor forming grader

Info

Publication number: US1507552A
Authority: US
Publication date: 1924-09-02
Anticipated expiration: 1941-09-02

Description

sept. 2, H924. 1,507,552-

J. D. ADAMS ET AL DITCH FORMING GRADER Filed Aug. 23, 1920 z' sheets-sheea 1 X u 01 Joseph llfldama Roy 5/? 0661,7716,

Sept. 2,, E924. 1,507,552

J. D. ADAMS ET AL DITCH FORMING GRADER Filed Aug. 23. 1920 2 Sheets-Sheet 2 jwuwnh'z Joseph D. H cl Fey 5 fldam'gg 1 Patented Sept. 2, 192.4.

UNITED STATES PATENT OFFICE.

JOSEPH I). ADAMS AND ROY ADAMS, Ol INDIANAIOLIS, INDlAlFll-it, ASEJIGNORS TD J. D. ADAMS AND CO., A PARTNERSHIP GONtlISTING Gilt J, D. ADAIrTS, 13.. ADAMS, W. R. ADAMS, AND J. I). ADAMS, TRUSTEE.

BITCH-FORMING GRADER.

Application filed August 23, 192-0.

To all iii/10m 71/ may concern:

Be it known that we, JOSEPH D. Anarrs and llor E. Aunts, citizens of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented .a new and useful Ditch-Forming Grader. of which the following is a specilication.

It is the object of our invention to provide a road grader with a bank sloper attachment, which is preferably removable, whereby with a single operation the bottom and outside slope of a ditch at the side of the road may be worked at the same time that the inside slope of the ditch is worked, and the entire quantity of dirt from both slopes of the ditch may be carried out to and placed on the road to build it up and give it its proper crowning.

In carrying out our invention, we attach to the outer end of the mold board or blade a simplemental blade, preferably by a pivotal attachment whereby the vertical angle between the two may be adjusted to vary the angle between the outer and inner slopes of the ditch. This supplemental blade is at tached to the forward end of the oblique main blade, and is preferably in substantially the same vertical plane as the main blade: so that in operation the outer end of. the supplemental blade is the farthest advanced, and the dirt is fed from the outside slope of the ditch down into and up the inside slope of the ditch onto the road by reason of the obliqueness of the entire blade combination, formed of the main blade and the suj iplemental blade, with respect to the direction of travel. In order to get the full advantage of this supplemental blade, we prefer to use it on graders in which the wheels are tiltable to leaningpositions, and in which the bark wheels are laterally shiftable to make them travel in any desired path; that the front and rear wheels on that side of the grader which is toward the ditch may travel in the ditch and all the wheels may be made to lean to resist the tendency of the reaction of the dirt on the blades. particularly on the supplemental blade, to draw the entire grader into the bank, thus holding the machine properly in the desired line of travel.

The accompanying drawings illustrate our Serial No. 405,318.

ii'ivention: ship. 1 is a fragn'ientary perspective view of the front part of a leaningwheel road grader equipped with a bacle sloper blade in accordance with our invention, the main blade and the frame of the machine being shown only in part; Fig. 3 is a plan of the complete machine, but with the controlling mechanism in the main omitted; and 3 is a diagran'nnatic cross section through a road and ditch, showing the action of the main and supplemental blades thereon.

The grader comprises a main frame 10 connecting a front axle 11 and a rear axle 12, the front axle being mounted to turn on a suitable hing; bolt for guiding purposes, and the rear axle being slidable transversely of the frame by suitable operating mecha nism iii. The front and the rear axles are provided with suitable aarrying wheels 15 and 16 respectively, each of which is pivotally connected to its axle on a horizontal axis 17 which permits it to be tilted to any desired leaning position in either direction from the vertical. The tilting of the front wheels 1; controlled in common by suitable operating mechanism 19, and that of the rear wheels by suitable operating mechanism 20. The operating mechanisms 13, 1?), and 20 are shown only sullicieutly to indicate their character. T he forward end of a sub-frame 21 is loosely pivoted on a pivot pin 25 near the front end of the main frame l0, and the rear end of such sub-frame is slidable transversely of the main frame 10 by suitable operating mechanism 2?). "l he two ends of a cross bar 24-. on the sub-frame 10 are supported by two adjustable lifting devices separately operable by suitable hanism 26 whereby the two sides of the sub fra1nc may he raised or lowered relatively to each other, the pivoting of the sub-frame on the pin 22 being; suliieieutly loose to permit this.

A mold-hoard frame 27 is carried by the subframe :21. and is cireumferent. .ly adjust able about a pivotal center 3? by suitable operating mechanism to vary the angle of the mold board or blade 30, carried by such mold-board frame 27. with respect to the direction of travel of the graoer. All of these operating mechanisms referred to are shown only generally because they are now well known,

On the rear side of the mold board or main blade 30 near the bottom thereof at the right hand end (with reference to the direction of travel) is bolted a hinge member 31, which is connected by a hinge pin 32 to a similar hinge member 33 bolted to the back of a supplemental blade 34. This supplemental blade is the one which forms the bottom and outside slope of the ditch, and for that purpose its lower or cutting edge is preferably made of two parts 35 and 36 at an angle to each other to form the desired vertical angle between the bottom and outside slope of the ditch. The hinge pin 32 is transverse to the two blades, to allow the vertical angle between the main and supplemental blades to be varied as desired; and to vary this angle the outer end of the supplemental blade 34 is connected to the sub-frame 21 by an adjustable bar 37, which is made adjustable in length by being formed of two telescoping members 38 and 39 which may be locked in any desired relative position by a cross pin 40 co-operating with suitable holes 41 in such members, a series of such holes 41 being provided in one of the members. By varying the length of the adjustable bar 37, the vertical angle between the main and supplemental blades is varied. By swinging the supplemental blade sufficie-ntly high it becomes possible to use the main blade 30 in regular road grader operation without interference from the supplemental blade, and yet with the supplemental blade well out of the way. Though it is thus not necessary to remove the supplemental blade when working the grader Without it, it can be removed when desired by disconnecting it at the pivot pin 32.

In order to pull the supplemental blade forward, it is provided with its own draft frame 42, in the form of two diverging arms connected at their rear ends to separated points on the supplemental blade, one of them preferably extending down around the back of such supplemental blade to the hinge member 33. The two arms of this frame are joined at their forward ends, and are connected to a suitable pin 43 carried by a lateral arm 44 fixed to the forward end of the sub-frame 21. The connection of the draft frame 42 to the pin 43 is sufficiently loose so that it does not interfere with the raising and lowering of the supplemental blade to obtain the desired adjustment of the latter. The draft frame 42 is ordinarily not adjustable in length (though this is not necessarily the case), so that when the sup plemental blade is in use the main blade 30 must be at substantially a predetermined horizontal angle with respect to the subframe 21, and that end of the main blade to which the supplemental blade is attached must be the advanced end. In 'efiect, the

supplemental blade then becomes a vertically adjustable continuation of the main blade, with the outer end of the supplemental blade the farthest advanced of the entire blade combination.

In operation, the grader is drawn forward by any suitable draft device, and usually has its right hand wheels in line with each other, as shown, and traveling in the ditch at the right hand side of the road. The rear axle 12 0f the grader is adjusted to get this alinement of such right hand wheels. As the grader is drawn forward, the outer end of the supplemental blade digs into the outer bank of the ditch, and cuts the dirt therefrom and moves it down into the ditch by the action of the edge 36 and by the angle of the blade with respect tothe direction of "travel. The edge 35 of the supplemental blade forms the bottom of the ditch, and the dirt which is fed down into the ditch from the outer slope and that which is cut from the bottom of the ditch are fed together to the inside slope of the road and in front of the advanced end of the main mold board 30. This mold board or main blade 30 forms the inside slope of the ditch, or the outer edge of the main road, and carries toward the crown of the road not only the dirt which it itself cuts away but also the dirt which is fed to it from the outside slope of the ditch and the bottom of the ditch by the supplemental blade 34, thus building up the road.

Because of the obliqueness of the blade combination. with respect to the direction of travel, with the part which co-operates with the outer slope of the ditch farthest advanced, the reaction of the dirt on the blades tends to draw the whole grader into the bank; and this is effectively resisted by tilting the leaning wheels 15 and 16 toward the crown of the road so. that they resist such tendency to draw into the bank. If the draft device, such as a tractor, is travcling well upon the road, the draft connection may also tend to counteract the tendency to dig into the bank, and then the front wheels need not lean so far toward the road, if at all, or may in some cases even lean in the other direction. It is possible with this grader to form the entire ditch and both its inner and outer slopes without requiring the grader proper to travel on the outer slope.

\Ve claim as our invention:

l. A ditch-forming road grader, comprising the combination of a wheel-supported frame and a ground-cutting element, said ground-cutting element being angularly adjustable in a vertical plane and including two blade members vertically angularly adjustable relative to each other.

2. A ditch-forming road grader, comprisg the @Qmbination of a wheel-supported frame and a ground-cutting element, said ground-cutting element being angularly adjustable in a vertical plane and including two blade members vertically angularly adjustable relative to each other, said blade members being oblique to the direction of travel of the road grader.

3. A ditch-forming road grader, comprising the combination of a wheel-supported frame and a ground-cutting element, said ground-cutting element being angularly adjustable in a Vertical plane and including a main blade and a supplemental blade vertically angularly adjustable relative to each other, said main blade being oblique to the direction of travel of the road grader.

4. A ditch-forming road grade, comprising the combination of a wheel-supported frame and a ground-cutting element, said ground-cutting element being angularly adjustab e in a vertical plane and including a main blade and a supplemental blade vertically angularly adjustable relative to each other, said supplemental blade projecting laterally beyond the supporting whee s.

5. A ditch-forming road grader, comprising the combination of a wheel-supported frame and a ground-cutting element, said ground-cutting element being angularly adjustable in a vertical plane and including a main blade and a supplemental blade verticaily angularly adjustable relative to each other, said supplemental blade having a cutting edge formed of two parts at an angle to each other for forming the bottom and outer slope of a ditch. 6. A ditch-forming road grader, comprismg the combination of a main frame, Wheels for supporting said main frame, and a ground-cutting element, said groud-cutting element being angularly adjustable in a vertical plane and including a supplemental blade adapted to form the outer slope of a ditch, said wheels being tiltable to counteract the tendency of said supplemental blade to cut into such outer ditch slope.

7 A ditch-forming road grader, comprising the combination of a main frame, wheels for supporting said main frame, and

a ground-cutting element, said ground-cutting element being angularly adjustable in a vertical plane and including a supplemental blade adapted to form the outer slope of a ditch, said wheels being adjustable so that their planes of rotation may be changed relative to said frame to counteract the tendency of said supplemental blade to cut into such outer ditch slope.

8. A ditch-forming road grader, comprising the combination of a main frame, wheels for supporting said main frame, and a ground-cutting element, said ground outing element being angularly adjustable in a vertical plane and including a supplemental blade adapted to form the outer slope of a ditch, at least one of said sup porting wheels being adjustable so that its plane of rotation may be changed relative to said frame to counteract the tendency of said supplemental blade to out into the outer ditch slope.

9. In combination with a road grader having a frame and a main blade, a laterally adjustable member, and a supplemental blade carried by said laterally adjustable member and vertically angularly adjustable relative to said frame.

10. A ditch-forming road grader, comprising front and rear axles, wheels for sup porting said axles, a rigid main frame connecting said axles, and a ground-cutting element vertically and latera ly adjustable relative to said main frame and including two blade members vertically angularly adjustable relative to each other.

11. A ditch-forming road grader, com prising front and rear axles, wheels for supporting said axles, a rigid main frame connecting said axles, and a ground-cutting element angularly adjustable in a vertical plane and including two blade members vertically angularly adjustable relative to each other.

12. A ditch-forming road grader as set forth in claim 11 with the addition that said main frame is latera ly adjustable on said rear-axle.

13. A ditcl1for1ning road grader, comprising a combination of a wheel-supported frame and a ground-cutting element, said ground-cutting element being bodily adjustable in height relative to said frame and also angularly adjustable in a vertical plane, said ground cutting element including two blade members vertically angularly adjustable relative to each other.

In witness whereof, we have hereunto set our hands at Indianapolis, Indiana, this 6th day of August, A. D. one thousand nine hundred and twenty.

J. D. ADAMS. R. E. ADAMS.