US1559168A - Grader - Google Patents

Description

Oct. 27, 1925' GRADER Filed June 17- 1924 2 Sheets-Sheet 1 a. cilia;

} Jar-a Oct. 27

G. c. HILL Er AL GRADBR Files! June 1'7 1924 2 Sheets-Sheet 2 Patented Oct. 27, 1925.

, 1,559,165 A EENT O ICE:

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Application filed June 17, 1,924. 'Seria1fio.720,578.

' To all-whom it may canoe m:

Be it known that we Gnome C. HILL and.- J-AMns 'H; TAYLOR, citizens of the United States, residing atOivensbolfo, 1n the county;

olf'Daviess and State o'ffKent-ucky', have. in-

' ventedv certain new anduseful Improvements in Graders, of which the following a Y is desired to direct all the looseneddirt'to oft-he landside.--

one side "of'a road or. ditch." Other objects of the, invention willappear incidentally in the course of the following description, and the invention resides certainnovel T features which Will be hereinafter. first fully described: and then more partic'ularly pointed out in the appended claims.

In the accompanying "drawings, which illustrate'one. embodiment of our invention,

Figure -lfis a planview of our improved grader; c Ff'g. 2 is a front elevation r .Fig. 3 is a section on the line of Fig.1; v. Fig. 4 is a detail section on the line-44c 0fFig.'1,and Y Figi 5 is a detail section on the line 5'5 fFi 1 :EFi 6 is a ,detail'side elevation'ofi an end Briefly stated, the grader, consists of, a landsidf, a blade, suitable connections" be:- tw en. the blad and the ,lan idet andmea s for app yi g 'dra tJ 'o e a ds de-z Ulhe andside C Il I' Q QQZQ wo a g-1e; arjs having their vertical webs. lcdisposed'i in the ame pl ne, as 'sh wnmost c early in Fig. 5, and having their horizon alwebs 2 disiposed in abuttinfrelation, rivets or similar 'tastenings, in icated at 3,, being inserted through the horizontal-webs whereby to securethe same rigidly together? ?'='%The horizanani" webs are .cut away-at points short of the ends of'zth .v'erti'cal' webs, as shown. @in Eigjl, and the ends 76f theschori'zontalwebs are disposed obliquely, as shown at 4, so

that-theyfwill not interfere with the align-j lar dispositionof the; blade. The horizontal webs constitute a platform orfoot-rail to supportithej driver ofthe machine and they are? provided adjacent their free longitudinal edges with openings 5, the. purpose'of whichjwijll presently appear. Adjacent the ends of the-landside, I secure. to the inner side thereofyokes or brackets 6 which, as

shown most clearly in Fig; 4-, 5 are substan tially u-shjapedihaving vertical 'websor bodies fsecureddigidly against the vertical-- Websof-the landside 'anclb'ridging the joint between thesjame "while "at the upper and lower, ends fof the, said vertical webs are laterally directed lugs 7 having longitudinal slotsv 8 therethrough. We also. secure to the ends ofthe ilandside 'brackets 9 which consist substantially of metallic straps doubled upon themselvesand having the leaves thus produced riveted or otherwise rigidly secured 'to'the opposite'sides ofthe landsideat' the ends thereof, the bight or fold between-the plies being disposedbeyond the extremities of the landsicle as shown in Figs. 1 and- 2. The, ibight or'fold of each of these brackets isnotched, as indicated at 10., thereby defining upper'an'd lowerhinge'e'yes 11, as clearly shown, and,

if, desired,- the inner sides of the bracketsv aybe provided with beveled recesses or notches 12 in their loweredge portions to accommodate possible extreme adjustment of the front end of the blade and avoid choking'and accumulation of dirt between the blade and the bracket. We also "employ a clevis;:.13 which is provided with a verti- V cal seriesjof'openings 14 in'any one of which a dra'ft chainor similardevice may be en- -gaged, and this" clevi s include's a series of three rearwajrdlyprojecting eyes 15- which f are adapted to 'engage between the eyes 11 and above i and? below.- the same,:- as shown in Fig. -2,..a kingfbolft i16 being" inserted ously, the 'clevi's and the draft devices. connec't-e'd therewithmay be arrangedat' either end of the "landside and 'coupled'tojfeither iiigwhich the machineis; to be hauled.

The; blade-.17 consists of'a steel plate having 'a' concave front rface 'and'liaving its through the-vertically alined-eyes whereby Y to coupleitheiclevis' to the bracket; Obvi-.

draft bracket 9 according to the direction "ends disposed uponoblique-lines,'as shown atr18.' Wherebyithe end edges. of: the. ,blade will converge upwardly and the lower corners of. the blade will be adapted to cut readily into the ground, thereby eliminating the use of plows or other-breaking implements when new ground is to be graded. Upon the rear side of the blade immediately adjacent each end thereof, we provide a coupling rib or bracket 19 which extends vertically of the blade and may be produced by riveting or otherwise rigidly securing to the blade angle bars curved longitudinally from end to end to correspond to the curvature of the blade and having their rearwardly projecting webs placed together, as shown, a plurality of openings 20 being formed through the'said webs. nection between the end of the blade and the landside also includes a coupling yoke 21 which spans the bracing and coupling rib 19 and is pivotally attached thereto by a bolt 22 inserted horizontally through the ends of the yoke and one of the openings 20 in the rib, the relatively vertical'location of the end of the blade being determined by selecting the proper opening 20 in which to engage the coupling pivot bolt. The

V outer or rear end of the coupling yoke 21 fits between the lugs 7 of the brackets 6 and defines a vertically disposed sleeve or eye 23 through which a coupling bolt 24 is engaged. The said bolt 24Lpasses through the slots 8 in the bracket 6 and may obviously be shifted along the said slots so as 'to accommodate varying angular positions of the blade.

Disposed longitudinally upon the rear side of the blade approximately midway the height thereof, we secure an angle bar 25 which serves to reinforce the blade and also constitutes a foot rest so thatfthe driver by standing upon the said foot rest and the platform 2 will add his weight to the machine to hold it to its work and may very easily control the draft team. lhe hand rails which have been frequently used are unnecessary with our device and as they frequently interfere with the IIIQVGIHQHtS Of the driver, they have been eliminated. The driver may very 1 readily brace himself against'the blade and the landside so that he is not apt to suffer injury in the normal operation of the machine, Rigidly secured to the back of the blade at the center thereof is a bracket 26 having rearwardly projecting lugs 27 at its upper and lower ends. A bracing yoke 28 has its ends disposed between the lugs 27 and coupled theretoby a pivot bolt 29 inserted through the said lugs and the ends of the bracing yoke, as shown clearly in"Fig.3. It will be readily noted that the bracing yoke 28 -is substantially V -shaped' with its sides converging rearwardly'from' its ends and connected by a head or bridge member '30. A fork 31 is engaged over the edges-of the horizontal The con threaded through a portion ofits length and the threaded portion is engaged by a nut 34 whereby the fork and the bracing yoke will be held in operative relation.

We also provide guide runners 36 whichare riveted or otherwise fixed to the outer side of the landside and'project below the lower edge thereof so as to enter the ground and hold the machine to a rectilinear'path,

the labor of guiding the machine being thus minimized. disposing these guide run ners upon the outer side of the landside, they perform their functions more effectually than if they were upon the inner side as is the more general practice and also are disposed so that they will not interferewith the action of the blade.

In Fig. 1, we have shown the device ar ranged for work. Draftis applied through the chain 35 to the front end of the landside and the machine is thereby drawn forward so that the blade will cut into t-he'surface of the ground and reduce the same to a level, the surplus loose dirt being deflected to one side and escaping at the rear or outer end of the blade. When the machine has been drawn to the limit of the operations, it is not necessary to turn the entire machine around inasmuchas the blade maybe simply reversed by removing the coupling bolt 24 and the yoke 21 from the front end of the blade and the landside and connecting them to the rear ends of the blade and landside, the blade being swung pivotally about the bolt 32, as will be readily understood upon reference to the dotted lines in Fig. 1. The draft'devices are, of course, shifted to the rear end of the landside and the machine may then be drawn backward over the same path or in a parallel path sothat the loose dirt willbe all turned to the same side of the road or ditch. The central connection between the blade and the landsideconSi'sb ing of the bracket 26, the yoke 28 and the fork 31 veryeffectuallyholds the bladeto itswork and resists'bendin'g or "buckling thereof whether the machine be drawn .in one'or the opposite directiomand the angular'position of the blade may be readily varied by shifting the pivot bolt 32 toone'or another of the openings 5', the pivotallshifting of the end of thezblade being accommodated by the sleeve 23 turning :about the bolt 24 as a pivot. The bolt 24 may be shiftedlongitudinally of the slots S'so as to further accommodate the different positions of the blade, and this simple construction provides for a very Wide adjustment of the blade. It is also possible to adjust the blade pivotally about the pivot bolt 29 so that the range of adjustment is thereby increased. By engaging the bolt 22in one or another opening 20, the front end or point of the blade may be set to cut at a greater or less depth, and this adjustment of the blade will be accommodated by the pivotal movement of the yoke 28- about the stud 33 so that readjustment of the bracing yoke or any other is avoided and the pulling force is so exerted as to very quickly set the device in motion. The machine presents simplicity of construction combined with great strength and durability so that the cost of production is comparatively low.

Having thus described the invention, we claim:

1. In a grader, the combination of a blade, a landside, a vertically extending rib upon the rear side of the blade at the end thereof, a bracket secured upon the landside, and a coupling yoke connected to the bracket by a vertical pivot and to the said rib by a horizontal pivot. V

2. In a grader, the combination of a blade, a landside, a vertically disposed rib on the rear side of the blade at the end thereof, said rib having a plurality of horizontal openings therethrough, a bracket secured to the landside adjacent the end thereof, a coupling yoke comprising a sleeve engaged with the said bracket and end members disposed at opposite sides of said rib, a vertically 'disposed pivot bolt extending through the bracket and the said sleeve, and a horizontally disposed pivot bolt extended through the end members of the yoke and through one of the openings in the said rib.

3. In a grader, the combination of a blade, a landside consisting of vertically disposed webs arranged one above the other, a bracket secured to said webs and bridging the-joint between them, said bracket being provided at its upper and lower ends with laterally directed lugs, a vertically disposed rib on the rear side of the blade at the end thereof, a coupling yoke having a sleeve fitting between the lugs on the bracket and having end members disposed at opposite sides of said rib, a vertical pivot bolt inserted through the lugs of the bracket and through the sleeve of the coupling yoke, and a horizontally disposed pivot bolt inserted through the end members of the yoke and the said rib.

4. In a grader, the combination of a blade, a landside, a bracing connection between the blade and the landside at the centers thereof, said connection having universal movement, and meansfor coupling the end of the blade with the end of the landside.

5. In a grader, the combination of a blade, alandside having a platform on its inner, side, a bracket secured to the rear side of the blade, a fork pivotally attached to said platform, and a bracing yoke connected to the said fork for movement about a horizontal pivot and connected to said bracket for movement about a vertical pivot.

6. In a grader, the combination of a blade,

a landside having a platform on its inner side, a vertically disposed bracket secured to the rear side of the blade and having rearwardly projecting lugs at its upper and lower ends, a bracing yoke having its ends disposed between the said lugs, a pivot bolt inserted through the-ends of said yoke and the lugs at the ends of the bracket, a fork spanning the edge of the platform, a vertically disposed pivot bolt connecting the rear end of the fork with the platform, a stud at the front end of the fork extending through the rear end of the yoke and pivotally mounting the same, and means for retaining the yoke upon said stud.

7. In a grader, the combination of a blade, a landside, means for coupling the front end of the blade to the front end of the landside and effecting relatively vertical adjustment of the blade, and a bracing connection between the blade and the landside intermediate the ends of the blade and the landside tures.

GROVER o. HILL. [L.s.] JAMES I-LTAYLOR. 1. 8.

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