US1713030A

US1713030A - Scraper attachment for tractors

Info

Publication number: US1713030A
Application number: US185710A
Authority: US
Inventors: James D Cummings
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-04-22
Filing date: 1927-04-22
Publication date: 1929-05-14
Anticipated expiration: 1946-05-14

Description

May 14, 1929.,

J. D. cuMMlNGs SCRAPER TTACHMENT FOR TRACTORS Filed April 22, 1927 2 Sheets-Sheet l May 14, 1929. .1.13. CUMMINGS SCRAPER ATTACHMENT FOR THACTORS Filed April 22, 1927 2 Sheets-Sheet 2 rmsaal'may. 14,1923@lv j outras STATES PATENT ofi-Ij-FISJE;

Jamas D. commes, or noUsToN, TEXAS. j l

SCIEB ATTACHMENT FOB TRACTOE.

Application led April 22, 1927. Serial No. 185,710.

i the crank case thereof, ,in such manner as to allow dexiloility in the adjustment of the" atta'chment upon the tractor in use.

.du object is to rovide a universal engagement between tie scraper and the ush bars so that the angle ot adjustment o the scraper may be changed in various planes without diiliculty.

'lhe improvements in the present invention over the prior device, reterred to above, lie largely in details ot construction, whereby the scraper may be morehrmly sup-v ported and more readily adjusted..

lteterring to the drawings herewith, `torming a part .ot this speciiication, tor a more particular understanding o'l the invention, lclig. 1 is a hroken side elevation ot a tractor showing my invention mounted thereon, certain parts being broken away 'tor `clearmess..` lilig. 2 is abroken rear view ot the scraper showing the means ot attachment thereto oi the push bars. hig. 9 is a top plan' view ot the attachment removed, certain parts being broken away and removed.

"lhe scraper disclosed is designed to he employed to cut into a bank ot earth and push the earth betere it. ln tiillingditches the earth is pushed toward the ditch and dumped therein. rlhe scraper 1 1s a plate ot steel ot suitable length, curved in vertical section to present a concave tace torwardly lto engae the earth. "lhe lower edge ot the plate is sharpened at 2 to hotter out into the earth.

'lhe' late or mould board 1 is supported at the orward ends ol' A ush bars d, 9, which are themselves mounte The push bars are extended iorwardly trom a point directly below the crank case 5 ot the tractor. Plihe rear ends of the bars 3 vare secured within a casting 6 which has upon the tractor d.,

diverging sockets in which the bar ends are secured.

The casting 6 has a central openin 7 8. Sgaid therein to receive an upright pin pm is supported within a bracket 9 bolted to the flange 10 of the crank case. This mount ing furnishes an extremely ri'id and vhrm attachment at a point spaced forwardly from the drive wheels 11 of the tractor.

The arms 3 diverge forwardly andare of tubular formation. said arms telescope over :rods 12 which t slidably therein. Each of'said rods has at: its forward end a ball 13 formed integral` with the rod. A radial flange 14 on the rod adjacent'the ball limits the movementv ot the rod into the push bar arin. 'f

The push ars 3 are su ported adjacent their forward ends by yo res'15, as shown in my prior Patent hlo. 1,522,378, previously mentioned. rlFhe said oke has two collars 16 termedA to receive t e push bar. El.bove the push bar, the yoke is extended upwardly and has a slot 1l' therein, longitudinally ot the bar, to receive a crank arln 18, upon a lever 19, pivoted upon a rock shaft 20. rl"he said shai't is mounted pivotally within a bearing 21 bolted to the iorward side ot the trent aille 22 ot the tractor.

'llhe lever 19 is termed with a connecting arm 23 which joins with an arm 241- secured to shai't 29, the three arms 19, 23 and 2d being preferably termed in an integral triangular irame. 'lhe upper ends ot arms `23 and 241 are pivotally connected to a link bar 25 extending rearwardly tor control hy the operator in any preferred manner, the operating connection being omitted. 'llhe crank arm 18 is slidable in the slot 17 ot the yoke when the lever is operated.

lhere are supporting yo-kes 15 i'or each push bar and a transverse pin 27 'through The forward ends ot the forward sleeve 16, the bar 3 and the rod 12 serves to hold the rod in position in the bar. d. plurality ot transverse openings 28 are lformed therein to receive said pin 27 so that the length ot each bar maybe thus varied, as hest seen 4in lig. 3. L lhe adjust able length. oi' the push rods makes the device adaptable to push the earth to the right, lett or forward in any de ree desired.

'lhe scraper plate 1 is ormed on its rearward side with a longitudinal slideway formed ci two spaced angle irons 29, having overhanging1 flanges 30 toslidabl eni ave a bearin ythe scraper plate.

ock 31. The f orwarl face of -said block is curved to fit against the scraper and has a rearward socket 32 therein to receive the ball 13 upon the push bar. There are bearing blocks 31 for each bar both slidable in the slideway Vbetween the irons 29; The lower of the slideway guides has spaced notches 33 therein and each block 31 has a ivoted latch'l dog 34 thereon to ene wit a selected one of these notches to ho d the :block from sliding during operation ofthe scraper.

At the upper edge-of the scraper 1s a rod 35 supported at each end in brackets 36 upon the plate. Upon this rod are slidably mounted two sleeves 37 which have ears 38- thereon pivotally connected to the forward ends of arms 40. Said arms 40 extend rearwardly and are connected to the yoke 15 at any one of a ,plurality of openings 41', thus furnishing a support for the upper side of The support arms are made in two

telescoping sections

40 and 40 similar to the push rods 3. A pin 42 servesl to retain the parts in the desired osition as do the `ins 27 the push rods. hus when lthe pus rods a\re extended as shown in Fig. 3 the support arms also are extended an appropriate amount.

In operation, the scraper Vwill most frequently be extended transversely at approximately a right angle to the line of travel, as shown in full lines in Fig. 3. The bearing blocks 31 will be locked in the proer position to support the scraper plate at t at angle. This w1ll be accomplished by dropping thellatching dogs 34 lnto any selected one ofthe notches 32, in the manner shown in Fig. 2. The connecting arms 40 may be adjusted in any one of the o enin s 41 so as to tilt the scraper plate at t e deslred angle and ordinarily the position will be approximately erect, as shown in Fig. 1.

lIn filling earth into ditches and trenches, as is necessary in the laying of pipelines and the like, the lever 25 will be withdrawn toward the operator so as to raise the scraper o'f the ground and the tractor will then be backed up so as to bring the scraper against the wall of earth which is to be moved `into the ditch. The operator will then drop the scraper to the proper position to engage the bank of earth and the tractor will be advanced so as to push the earth into the ditch or excavation which is to be filled. This operation will be repeated until the earth has been entirely lled into the ditch.

' When the device is to be used in scraping moreI to one side of the path of the tractor. This inclining or tiltin of the scraper may be done by removing t e pin 27 on the bar which is to be len thened and advancing the rod 12 from within the bar so as toengage the pin within one of the other openings 28. When thus adjusted, the plate will.y as firmly supported as before and the universal connection between the rod 12 and the bearing block upon the plate will allow the same firm contact between the push bar and the plate. In thus inclining the plate, it may be necessary to slide one or both of the bearing blocks 31 within the slideway 29 so as to accommodate the change in the position of V liable to get out of order.

The advantages of the structure will'be obvious to those skilled in the art.

What I claim as new and desire to protect by Letters Patent is:

1. A scraper attachment for tractors including a scraper plate, push bars therefor, a su porting bracket for said bars secured to the lbwer side of said tractor, rods adjustable longitudinally in the forward ends of said bars, slideways on the rearward side of said plate, bearing blocks slidable therein, and universal connections between said rods and said blocks.

2.'A scraper attachment for tractors including a scraper plate, push bars therefor, a supporting bracket for said bars secured to the lower side of said tractor, rods adjustable longitudinally in the forward ends of said bars, slideways on the rearward side of said plate, bearingv blocks slidable therein, universal connections between said rods and said blocks, and supporting arms slidably connected with the upper side of said scraper plate for the pu ose described.

3. In a tractor aving a crank case, a front axle, and drive wheels, the combination of an attachment including a scraper plate, a bracket on said crank case, a push bar casting secured to said bracket, push bars supported by said casting, the forward ends of said bars being extensible, and a universal connection between said bars and said scraper plate.

4.-. In a tractor having a crank case, a f ront axle, and drive wheels, the combinatlon of an attachment including a scraper plate, a bracket on said crank case, a push ar castlng secured to said bracket, push Ibars supported by said casting, the forward ends of said bars being extensible, a universal connection between said bars and said scraper plate, and means to raise and lower said bars and said scraper plate.

5. In a tractor having a crank case, a front axle, and drive wheels, the combination of an attachment including a scraper plate, a bracket on said crank case, al push bar casting secured. to said bracket, push bars supported by said casting, the forward ends of said bars being extensible, bearing blocks adjustable longitudinally o said plate and a universal connection between said bars and said bearing blocks.

6. In a tractor including front and rear wheels, an attachment including a scraper plate, push bars su ported on the under side of said tractor in ront of said rearwheels, bearing blocks connected with said bars and adjustable on said scraper plate, said push bars being extensible to allow adjustment of said plate, means to raise and lower said bars and plate, and adjustable means to support the upper edge of said plate.

7. In a tractor including front and rear wheels, an attachment including a scra er plate, ush bars supported on the under s1de of said) tractor in front of said rear wheels, bearing blocks connected with said bars and adjustableon said scraper plate, said blocks having sockets therein, balls on said bars tting within said sockets said push bars vbeing extensible toallow a justment of said plate, means to raise and lower said bars and plate, and adjustable means to support the upper edge of said plate.

8. A tractor attachment including push bars adapted to be supported at their rear ends beneath said tractor, a scraper plate, longitudinal slideways on said plate, bearing blocks adjustable in said slideways, sockets in said blocks, rods adjustable in said bars,

balls on said rods engaging in said sockets, means to raise and lower said bars, and meansto support one edge of said plate.

9. A tractor attachment including a scraper plate, a plurality of p-ush bars connected with said tractor, universal connections between said bars and said plate, and supports for the upper edge of said plate, said bars and supports being adjustable longitudinally along said plate and also in the direction of travel.

10. A tractor attachment including a scraper plate, a pair of diverging push bars connected with said tractor, universal connections between said bars and said plate, a rod secured at both ends along the upper side of said plate, and supports for the upper edge of said plate secured slidably on said rod, said bars and supports being adjustable longitudinally along said plate for the purpose set forth.

In testimony whereof I hereunto atlx my signature this 16th day of April, A. D. 1927.

JAMES D. CUMMINGS.