US1108925A - Wheeled grader. - Google Patents

Description

A. MORTON M. A. BRAAE.

WHEELS-D GBADBB. Arruummx 'FILED Amm, 191s.

Patented sept. 1, 1914.

2 SHSETSSHEET l.

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OFFICE.

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WHEELED GRADER.

`Specification. ofrLetters Patent.:VY Y Y Prtgnted Applicasen nea august 7, 191s. seriez Nes,eee.

To all whom it may concerner fr Be it known that We, Anninnnniz NORTON and Mannion A. Beans, citizens"v of the United States, residing at Labonte, Vinthe county of Converse and State of Wyoming, have invented certain new and Viiseful In provenientey in Wheeled Graders, of which the following is a specification'.

This invention relates broadly to a culture implements, and has particular ref erence to new and useful improvements in graders of the scraper type. Y

As its principal object, the present invention contemplates the provision of a grader constructed in such manner that the scraping eleinentproper may be lifted upV and out of engagement with the ground bythe manipulation of levers operable from the drivers seat.:Y

A11 objectV of equal importance with the foregoing is to construct the scraping ele-V ment and its associated liftingmechanisni in such manner that at the will of the operator either the forward or rear terminal of the scraper'ma Vbe lifted from engagement with the groun or road-bedfso that vvlirnV the grader is VemployedV in hilly conntrieswliere the inclines and depressionsjareunusually severe, thefterminals ofthe scrap g'element may be separately'adjusted'to. Efrei/"ent dueengagementwith'the grounl A further object is to provide gef Wheeled graderconstrncted with such regardfto proportion, number, andarrangement of parts that it may be cheaply manufactured, will be durable and eflicient in its action, and is formed of a minimum number of parte, so that the Vliability of breakage orrderange nient, and consequent necessity of repair of the parts of the machine, will be Vreduced to a minimum.

TheV above and additional objects arcaccomplished by suchV means as are illus- Ytrated in the accompanying drawings, de-

scribed in thefollowing*specilication and then more particularly pointed'out in the claims which are appended hereto and form a part of this application.

llVith reference Yto the drawings, wherein We have illustratedthe preferred embodiment of'our invention as it is Yreduced to practice, and throughoutVV the several views of which similar reference numerals designato corresponding parts, Figure 1 is a perspective View taken from one rear Vcorner of' traine',[member sept. niais.

the assembled Ytrueture and looking inft'ie direction Voitlre Yopposite forward corner; Fig. 2 is a side :elevation with the scraper in elevated Yposi ion; Fig. 3 is a vertical sectionV taire ngitudinally of the inaehine.VV

Y roceedlng'ovv Vto the description offthe drawings;tinaV numeral 10 designates I'as an entiretylthelwheeled supporting frame ,in whichfthe scraper is adjustably mounted. The Wheeled supporting frame includes a Yeshapedbody portion constructed preferably of tvvoinetalliebars li and 12,V which are bent intermediate their length to prf duce thefrrvardly diverging beams 13 and la, andfthe stem beamY 15, Ywhich as illustratedV inthe' drawings includes tliegtno terminals iof Vthemembers 11V l2 l which are secured ilfthe' desired lixedrelation te each other byzmeans of a bolt orfsiniilar fas toning Ydevice'l and a removable inn Y1?; Thekingspin 17 is formed 'l 1 theibight portion of the Uesapd'caster forl l atthe'lower"eriiiinalfo'fvhich is carriedY af wheel'. fbviously by thus providing avviieeifo: the pivotedlcaster type, vthegradermaybereadily turned in a small cmnpass.V Thesupporting standard 20 of a spring seat lV is arranged between the adjacent Yfaces oftlieportion l5 and is hel-d in position by the king-pin 17 and member 16.

The rear terminalsV of the beams 13 and '114 are secu red;-atljiee1;il;V Ythe oppositeY ends of' Va squared 'axle'PJ'by'meansof JULShaped clamping' bolt's. i InV practice, Ltil/ennembersll and 12 anerbentV sotiat'tlrelstenl Yportion of the Y-frarne'svilllie Va plane higiierftlranf'tat'o' the rear terminals, the obvionscpurpose of this constructionbeing to facilitate the adjustment of the forward end of thenioldbeard frame''or'scraper when? V@ground is encountered. Wheels 24 and 25ct any desired type are proridedvitiithe axle 22. n Y l he" souper, which is adjustably Vmounted AVthe "virilieeled frame above described, consists Ibroadly in a substantially rectangular iframe' and a number of moldboards Vwhich;are mounted transversely thereof and in 'parailels aced Vrelation to each; other. The frame o the scraping element includes ,ia pair of side Vbeams 26 and 27,' to the forward erniinals of which are secnre'd't'he loix i r terminals Vof a substantially U-shap'ed 28. The frame 'inembe'i'f is 'larrang'ed'with its bight portienfuppermost and is provided with a central aperture through which the hing-pin 17 projects. Upon reference to Fig. 3 particularly, it will be observed that the bight portion of the member 3S is mounted for sliding movement on the king-pin 17 between the stem 15 of the Y-frame and the upper end of the fork 18.

rllhe moldboards 29 are in the preferred embodiment formed of lengths of steel or cast iron, and are secured by bolts, rivets, or other suitable fastening devices 30 to the beams 2G and 2T, being mounted, as above stated, in parallel spaced relation to each other and transversely to the line of draft of the grader. Hooks 31 are carried by the forward terminals of the members 26 and 27 and are provided for the attachment of swingletrees or double trees, as occasion may demand.

As a means for raising and lowering the moldboard frame, there has been provided three lifting levers 32, 33 and 34. The members and 33 are respectively pivoted on segmental clutch plates and 35 mounted at the rear terminals of the members 13 and la. lire cables or similar flexible elements 86 aud 3T connect the levers 32 and 33 with the rear terminals of the side frame liembers 2G and 2T. In securing the terminals of the flexible element to the members E2G and 27, the preferred embodiment of this invention employs metallic rings 38 which are disposed in apertures formed in the frame members. The cables 3G and 3T operate on pulleys 39 and Ll0 which are jourraled in brackets -ll and 42 formed integral with and extending upwardly from the rear terminals of the base plates a3 and 4A on which the members 3l and 355 are formed. rllhe levers 32 and are equipped with the usual clutch rod and associated spring mechanisn'i, so that the driver of the grader may by manipulation of the levers adjust the rear terminal of the moldboard frame to any desired elevation.

For the adjustment of the forward end of the moldboard frame, there has been provided the lever 34 which is pivoted on the clutch plate -li similar in construction to the members Si and 35 and equipped with a similar base plate ll-G, pulley el?, and bracket lt will be obvious upon refer-I ence to Fig. 3 particularly, that by adjusting the lever 34, the driver may raise or lower the forward end of the moldboard frame which is operatively connected to the lever by a wire cable or similar flexible element 49. A draft tongue carries an attaching iron l which is pivotally connected to the wheeled frame by a pivot pin 52 which is passed through the eyelet 53 of a pair of spaced irons r-l and 55 formed integral with and extending upwardly from the forward terminal of the plate 56. The,

plate 56 is mounted for swinging movement on the king-pin 1T, and is interposed between the frame member 2S and the stem 15 of the Y-frame. A removable bracing rod .3T is provided to strengthen the draft tongue.

ln reduction to practice, we have found that the form of our invention, illustrated in the drawings and referred to in the above description as the preferred embodiment, is the most eliieient and practical; yet realizing that the conditions concurrent with the adoption of our device will necessarily vary, we desire'to emphasize the fact that various minor changes in details of construction, proportion and arrangement of parts may be resorted to, when required, without sacrificing any of the advantages of our invention, as defined in the appended claims.

What we claim is 1. A grading machine including a Y- shaped supporting frame having a pair of rear wheels and a single forward wheel, a fork for the forward wheel and a king pin rising therefrom, the king pin being connected to and fixed with respect to the forward end of the frame, a substantially rectangular scraper.J flexible means suspending the scraper from the frame, and a U-shaped frame member carried by the forward end of the scraper, said U-shaped member having its bight portion mounted for vertical sliding movement on thc king pin.

A grading machine including a Y- shaped supporting frame having a pair of rear wheels and a single forward wheel, a forli for the forward wheel and a king pin rising therefrom, a shoulder formed at the junction of the forli and the king pin, the hing pin being connected to and fixed with respect to the forward end of the supporting frame, a substantially rectangular scraper, flexible means carried by the supporting frame and connected to the scraper for suspending the scraper from the frame, and a U-shaped member carried by the forward end of the frame, said U-shaped member having its bight portion aperlured and mounted for vertical sliding movement 0n the hing pin, said shoulder being adapted. to limit the movement of the U-shaped inember.

3. A grading machine including a Y- shaped supporting frame having a pair of rear wheels and a single forward wheel, a fork for the forward wheel and a king pin rising therefrom, the king pin being connected to and fixed with respect to the forward terminal of the frame, a shoulder formed at the junction of the fork and the hing pin, a sera Jer, flexible means suspending the scraper rom the frame, means controlling the last-mentioned means for adjusting the elevation of the scraper, and

by the engagement of the U-shsped member 10 with the shoulder,

In testimony whereof We affix our signa,- tures in presence of two witnesses.

ALEXANDER MORTON. MAURICE A. BRAAE. Witnesses:

J. C. SAUL, HENRY H. FoxToN.

means for holding the scraper against longitudinal movement with respect to the frame, said last-mentioned means including a U-shaped member rising vertically from the scraper and having an opening in its bght portion, said openin receiving the king pin and being of less iameter than the said shoulder, whereby the downward movement of the forward end of the scraper is limited Copies of this patent may be obtained for vs cents each, 'by addressing the Commissioner of Patents,

Washington, D.

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