US1249187A - Road-grader. - Google Patents

Description

\ J. R. PILE.

ROAD GDADEB. APPLIcATwN mi rsa. 2o. 1912.

Patented Da. 4, 1917.

3 SHEETS-SHEET 2 Tes' T @Ad PAEIW @FFI@E "JOHN E. PILE, or owENsEoRo, KENTUCKY, Assiaivoru To INTERNATIONAL FARM IMPLEMENT COMPANY, or owENsEono, KENTUCKY.

ROAD-GRADER.

maaier;

Specicaticn of Letters Patent.

Patented Dec. d, 191'?.

To all whom it may concern:

Be it known that I, JOHN R. Pinna citi-` zen of the United States, residingat. Owens-` boro, in the county ofDaviess and State of Kentucky, have invented certain new and useful Improvements in Road-Graders, of which the following is a specification. t

VThis invention relates to grading and ditching machinery, and one object thereof is to provideV a novel means forraising and lowering the blade from the drivers seat so that the blade may be readily set at any desired working position. A further object of the invention is to provide novel means for vertically adjusting the ends of the blade independently of each other -so that the machine may be set at a steep angle to cut ditches of any desired depth and with the top of the same any desired: width. A further object of the invention is to provide means for preventing the bladecarrying frame from dragging on the ground and a stillv further obJect is to kprovide means whereby the drivers seat may be adjusted to a level position notwithstanding the machine may be operating at a steep angle. A furtherobject vof the invention is to provide novel means for reversing the angle of the blade, and the invention also seeks to improve the generalconstruction and arrangement of theparts of a road grader to theend that the eiliciency of the same may be increased and the life thereof prolonged. i

A machine embodying my present im. proveniente is illustrated in the accompanying drawings, in which-v Figure 1 is' aside view of an improved road grader; i i

Fig. 2 is a plan view thereof;

i F ig. 3 s an enlarged side elevation of aV portion of `the machine `showing the blade and gage roller set to different positions than those in which they appearin F1g.`1;

Y Fig. 4L is a detail sectional elevation of the gage roller and its handle;

Fig. 5 is a detail view of the seat and its support;

Fig; 6 is a sectional elevation of the colter;A

. In carrying out my invention, I employ -a pair of beams l andQ-v which vare of similar formation and have their rear ends turned downwardly to provide standards 3, The beams areset in parallel relation and at their front ends are providedwith clevises ordraft hooksl, the draft hook on the beam lbeing engaged by a hook 5 which is carried by a link 6 and thereby connected to one end of a whiiiietree or draft bar 7. The hook A, secured to the beam 2, is carried by a chain 8, one link of which is engaged byV a hook 9, similar in all respects to the hook 5, which is connected with thev vdraft baror whiftletiee 7 by a link 10 correextend rearwardly therefrom and receive the axle 14 in their rear ends, saidwaxle Vbeing equipped, adJacent the ends of the Vsaid plates or brackets 13, with sleeves 15 hav- `ing their inner ends tapered, as shownl at 16, and their outer ends constructed with recesses or seats to engage the endsof the said brackets 18 whereby the said sleeves will be prevented Vfrom rotating. A colter 17 is fitted over the axle, between the ends of the bracket 13, and is provided with hub members 18 which are secured to the colter by bolts or similar fastening devices 19. rI he outer ends of the hub members 1S are indented, as shown at 20,.,to provideconical chambers or seats which receive the tapered extremities 16 of the sleeve 15 so that the colter and its hub may rotate freely upon the said sleeves and will also be permitted to oscillate slightly to accommodate the diiferentvpositions of the apparatus. It will also be ncted that the hub members 18 provide wide surfaces immediately adjacent the opposite faces of the colter which are to rest upon the upper side of an arched plate 23 provided with a central longitudi` nal slot 24 through which the bolt 25, securing the spacing block or plate 22 to the seat, may pass. vA washer 26 and al nut 27 are 4mounted upon the lower end of the boltY 25 so as to secure the seat in any position to which it may be adjusted. The ends oi' the arched plate 23 are secured to the upper ends or' the supporting links or bars 28 and 29 which extend downwardly from the said arched plate, the lower ends of the bars 29' being fitted upon the axle 14 and the lower ends of the bars 28 being secured to the bracket 13 at the point where said bracket is secured to the standard 3. It will be readily understood that by adjusting the spacer plate or block 22 along the arch 23, the seat may be secured in a level position notwithstanding that the blade may be working at a steepfangle on the wall of a ditch.

A. guide pin 30 is secured in and rises from the front end of the bracket 13 in advance of the standard 3 and the upper end of said pin is supported by a similar plate or bracket 31 secured to the standard 3 near the upper end thereof. sleeve 32 is slidably mounted upon the standard 3 between the brackets 13 and 31 and has its front end fitted around the guide pin 30 and constructed with an opening 33, as clearly shown in Fig. 3.V A bracket 34 is secured tothe rear side or the plate 35 at the end of the same and this bracket is provided with rearwardly projecting lugs 36 at its upper and lower ends which slidably engage the guide pin 30 and receive between them the front end of the sleeve 32 so that the movement of the sleeve will be transmitted directly to the bracket 34 and the end of the blade. lTo eiect the desired vertical movement of the slidable sleeve 32, a link 37 is pivoted at its lower end to said sleeve andY at its `upper end to the lower or rear extremity of an angle lever 38 which is fulcrumed upon the beam and extends above the same. The lever is equipped with a latch 39 controlled by a handle 40 and adapted to engage the notches 41, in a segmental holding plate 42 which is secured to and rises from the beam. The parts are so arranged that the lever 38 may be easilyv grasped from the seat 21 in front of which it is disposed, and it will be readily understood that by swinging the lever rearwardly to the position shown in Fig. 1, the

`, end of the blade may be lowered while by moving the lever forward to the position shown in Fig. 3, the end of the blade will be raised. It will also be readily noted that the lower lug 36, by impinging upon the front end of the bracket 13, serves to limit the downward movement of the blade while the upper movement of the blade is limited by the upper lug 36 impinging against the bracket or plate 31.

Near the front end of the beam, I pivot l thereto a lever 43 which has its upper end connected by a link 44 with aV hand lever 45"which is mounted upon the beam byv a pivot pin or bolt 46,`common to the said lever and the lever 38, the said lever 45 being thus disposedv concentric to the segment 42, as will be readily understood. The lever 45 is equipped with a latch 46 controlled by a handle 47 and arranged to engage notches 48 in the upper edge of the `segment 42, as will be readily understood.

It will be noted that I employ a single holding segment to retain both levers in their set positions and the' opposite ends of the said segment are secured to :the opposite sides of the beam, the said segment being constructed centrallywith a transverse web 49 which serves as a stop to arrest the 'foieA vented. `The wheel is mounted upon an axle 53 secured in the lower end of a fork 54 from the head of which rises a stem 55 having a tapered -upper extremity 56 engaging a correspondingly shaped recess in Aa block 57 secured between the members ofthe frame 50, as clearly shown in Fig. 4. After the stem 55 is inserted throughthe lower end of the frame 50 and engaged in theseat-in the block 57, a retaining collar 58 is secured *upon the stem so as to bear upon the lower transverse end web of the Jframe 50 and thereby prevent the fork 54, with the roller 52 thereon, dropping out of place. It will be readily understood, upon reference to Figs. 1 and 3, that by shifting the lever 45 forwardly or backwardly, the

gage roller 52 may be set at a greater or lessV distance from the surface of the ground and thereby regulate the depth to which the blade may enter the ground.

The blade 35 is held atthe desired angle to the line of draft by a brace 59 having one end fitted upon and hung by abolt 60 which secures the draft link or hook 4 to the front end of the beam, the opposite or rear end of the brace beingA fitted over the upper end of a pin upon the bracket 32 at that side v ofthe apparatus remote from the bolt .60*

and a plurality ofopenings 61 may be formed in the brace or the brace may be oi telescopic connection soas to accommodate various angles at which the blade may be set. A second brace bar 62, similar in all respects to the brace 59, is disposed between the front ends of the beams and is supported by an angle bar 63 secured by the bolts connecting the draft devices to the beams and constructed with an overhanging lip or flange 64 which is adapted to prof` ject over the brace bar 62 and thereby re` tain the same in position. It will be readily understood that the provision of these brace bars effectually prevents the blade from shifting into a position parallel with either beam and they also provide for reversing the machine rapidly and without excessive labor. To reverse the machine, the draft-applying devices are disengaged from the hooks 4; and the chain 8 shifted to the opposite side of the machine, after which the hooks 4 are again engaged. The brace 6l is then disengaged from the pin on top of the bracket 3l and iitted to the position formerly occupied by the brace 62, the end of said brace being fitted upon the pin or bracket which was previously free. If

the draft be now applied to the machine, the

blade will be reversed without the operators being required to lift the weight of either end of the machine.

From the foregoing description, taken in connection with the accompanying drawings, it will be seen that I have provided an exceedingly simple apparatus by the use of which the blade may be easilyadjusted in a vertical plane without the operator leaving his seat. As the machine provides two seats, either one of which may be occupied, the machine can be easily balanced when working at various angles. Either end of the machine may be raised or lowered independently of the other end so that ditches having their walls disposed at any desired angle may be readily formed and the device rendered capable of advantageous use in form-` ing` terraces. The colters disposed `below the supports for the seats will prevent said supports dragging onthe ground and thereby unnecessarily increasing the draft of the machine and will also, owing to their formation, roll upon the surface of the ground and press the same while, at the same time, performing the function of holding the blade to its work and preventing lateral movement of the same. The gage wheels may swivel freely so as to readily ride over all obstructions and conform tothe line Vof draft and they will preferably have broad, smooth surfaces so that they will determine the depth to which the blade will cut and will not sink in soft ground.

Upon the back of the blade., I provide pockets or containers which may be utilized to carry an aX or other tool which may be needed in cutting roots or stumps found in the path of the apparatus.

Having thus described the invention, what is claimed as new is:

1. In a road grader, the combination of a beam, a blade carried by the beam, a gage mounted upon the beam in advance of the blade, operating levers pivoted upon the beam by a common fulcrum, connections be- Copies of this patent may be obtained for ive cents each, by addressing the tween one of the said levers and the blade, connections between the other lever and the gage, a single holding segment mounted upon the beam concentric with the fulcrum of said levers, and latches upon the levers adapted to engage said segment.

2. In a road grader, the combination of a beam, a blade mounted thereon, a gage mounted upon the beam in advance of the blade, operating levers mounted on the beam by a common fulcrum, connections between one of said levers and the blade, connections between the other of said levers and the gage, a holding segment secured upon the beam concentric with the fulcrum of the levers, and latches upon the levers arranged to engage said segment, said segment being constructed to limit the forward movement of one lever and the rearward movement of the other lever.

3. In a. road grader, the combination of a beam, a blade carried by the beam, a gage mounted upon the beam in advance of the blade, operating levers mounted on' opposite sides of the beam by a common fulcrum, connections between one of the said levers and the cage, connections between the other of said levers and the blade, a holding segment disposed concentric with the pivot of the levers and havingits opposite ends secured to opposite sides of the beam, an intermediate portion of said segment being disposed transversely of the beam to form a stop for both levers, and latches carried by the levers and adapted to engage said segment.

4;. In a road grader', the combination of a beam, a standard at the rear end of the beam, brackets upon said standard, a guide pin secured in and extending between said brackets, a sleeve slidably mounted upon the standard between the brackets and constructed to fit aroundV the said guide pin, a blade disposed in advance of the guide pin, a projection on the blade engaging said sleeve to be actuated thereby and fitting around the guide pin, and means for moving the said sleeve vertically upon said standard.

5. Ina road grader, the combination of a beam, a blade carried thereby, a bracket extending rearwardly from the beam, supporting arms rising from the said bracket, an arch connecting the upper ends of said arms and having a longitudinal slot, a spacing block resting on said arch, a seat on said spacing block, and a securing bolt inserted through the seat, the spacing block and the slot in the arch whereby to secure the seat in a set position.

In testimony whereof I afhx my signature.

JOHN R. PILE. [1.. s.]

Commissioner of atents,

Washington, D. C.

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