US1276876A - Grading-machine. - Google Patents

Description

X. F. COUNARD.

GRADING MACHINE.

APPLICATION FILED APR. 11. 1911.

1,276,:87. Patented Aug. 27, 1918.

2 SHEETS-SHEET 1.

X. F CouNAnD INVENTOR.

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X,.F. CGUNARD.

GRADING MACHINE.

APPLICATION Hm) APR. :1. ran.

1 ,276,876 v Patented Aug. 27, 1918.

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To aZZ wh-om it'may concern:

Be it known that I, XAVIER 'GoUNARn,

' a ci-tizenof'the United States of America,

residing at'Brussels, inthe county of'EDoo-r and State of *Wisconsin, ,lliLVE/lDVGIl'bQtl156E tain new and useful Improvements in Grad ing-Machi'nes, of which the follo-wingis a; specification, reference beingihad therein .to the accompanying drawings .1

The invention relates to grad i-ng machines and has for its object' the provision'of .a .ma-; chine that is mounted on Wheels and; includes a plurality of seraper plates adapted to; level earth, such as is necessary forctlliefconstructiontof road beds or for similar purposes.

further object constitutes the arrangementof the scraper plateon an auxiliary frame adapted to beraise'd 01*1l0W816Cl,\Vifsll respect "to the main carryingframe of; the machine, and adapted tobe turned from side to side so as to adjust the scraper plates with respect to the direction .of movement in which'the machine is conveyed. v

It is also'an obj ect of the invention to provide means whereby {the auxiliary. frame 1nay be turned about at -centrally located 7 pivot. pin.

't StiIl another. obj ect constitutes the provision of "a singleslevencapable of fitting the various adjustments referredfito, such-that w an operator can conveniently raise, loyver, or

i turn the"auxiliaryframelatihis .pleasure.

' To the'accoinpli slnnent of the general ;objects, stated, and others gwhichivvill more 3 5 fully- ;appear,theifpreferred, embodiment of "the invention-'- consists iin' the, construction and arrangement of-qearts -to:==be described, illustrated in the accompanying drawings, and "defined in the appended :claims. :In

. "1 ,is"at0p plan viewiofithe machine constructed in accordance with :the inven- K2 is a" frontejelevation of-'Jthe 1113,

presentfniodificationfisfsupported-by a pair specification of Letters Patent.

Application filed A vi n, 191 7. Seria1.No.162;7;20.

Q w Q b.1113 t W hin the scope of the invention to provide a greater number of Wheels and. to increase accordingly the length. of the machine, ifso desired. The longitudinal beams 3 are provided-ion the under-side with depending journal boxes 5., to receive the axle ,6 upon which thejsupportmg wheels 4 are mounted and whieh{aXle iS formed: integral with acollar 7 abutting against the inner side of the journal-their so as-to pnevent displgacement' of-the aXle, in thesjourn'al box in longitudinal direction. The: protruding; end 8 of the, wheel axle is bent upwardly to form ,an angle of, 19D degrees with the other, portion of; the, axle, for a purpose presently gobs-described. [nter mediate the transverse beams 2 ofthe Eniain or carrying frame 1- of the machine, a crossbeam 9 is provided ,Which ataits terfifihal portions is formed With apertures to permit passage of the upstanding ends .8 of,.tl e

Wheel axle for the purpose, of ro i guiding means for; the cross-,piece- 9.,1When the latter.;as will here nafter appear -is raised-or lowered. The QLIQ$S b6Hl1l 9g-carries a bolt 10, to which is secured the auxiliary frame, generally designated .11, and

which comprises the; longitudinal. beams 12 interconnectedby ;a,plu rality of rods or shafts 13, I spacedapartand serving as cartudinal beamsll-ZI of the auxiliaryi frames by means of bolts, Wooden screws, or, any. other. suitable-or approved-fastening meansQ I'Ihe scraper, plates 14 are suspended ,lfrom' vthe shafts 13 by means of fasteningfpiecesg 16, which are secured atone endto the scraper plate in any approved 'mannenwvliile their other 1 ends are bent, around the shafts 18 to form :a sleeve thereon. Thus it ,is ,seen. that the scraper platesare freely suspended. from the shafts; 13 and are; capable of oscillating forwardly and, backward 1y: .I n .order to maintain :a resilient, but nevertheless sufficient, engagement between the scraper plates and an abutment. onridgeof earthstobe removed, springs 17 are arranged bothatthe intermediateportion 0f thelshaft 13; and ,the terminal portions, thereof,: the-ends whereof contact with the frontand rear sidesofthe scraper rplates respectively. This .means'f of securing the scraper plates insures a suflicient engagement with a slight resistance to be removed, without, however, making the yielding of said plates impossible when an unusually hard resistance, such as a buried stone or a piece of iron, is encountered. The auxiliary frame 11 is adapted to be raised or lowered or turned about the bolt 10 by proper manipulation of a lever 18 arranged in proximity to the seat 19 of the driver or operator, so that the aforementioned adj ustments may be conveniently effected by the driver while seated. The lever 18, as shown in Figs. 4 and 5, is mounted upon a pin 20 journaled in boxes 21, 21. A weight-22 is suspended from the lever 18 to normally maintain the same in upright or vertical position. Y

A pair oflevers 23 and 24 are loosely mounted on the pin 20, each of which comprises an upper portion 25' and a lower portion 26. The upper portion 25 terminates in a sleeve, through which the lower portion 26 projects, and a spring 27 is interposed betweenthe upper end of the lower portion and the adjacent side of the sleeve portion of the upper part, so as to maintain the upper and lower parts of each lever constantly in engagement. The upper parts 25 are provided with a tooth 28 adapted to enter the recesses of a notched quadrant 29 and 30 respectively, whereby the levers 23 and 24 are secured in adjusted position. The lower parts of the levers 23 and are forked to receive links 31 and 32. The lever 18 is equipped with locking and release handles 33 and 34 at its upper end, and rods 35 and 36 respectively interconnect the handles with pawls 37 and 38 extending through an enlarged central portion of the lever 18, and slidably fitted therein. The pawls 37 and 38 are equipped with a tooth 39 and 40 respectively, and springs '41 and 42 interposed between lugs of the lever 18 and the pawls serve to maintain said pawls in inoperative or disengaged position. -When it is desired, for instance, to manipulate lever 23 and thereby actuate the link 31, the handle 33 is forced against the lever 18, whereby the tooth 39 of the pawl 37 is raised and the upper portion 25 of the lever 23 is released from the notched quadrant 29. Together with the raising of the'upper lever portion 25, the main lever 18 is interlocked with said portion,'so that oscillation of the main lever simultaneously causes a movement of the lever 23." The link 31 extends backwardly from the'lever 23 and is articulated with a lever 44 secured to a square shaft 45 provided with terminal rounded portions journaled in bearings 46 provided on the longitudinal beams3 of the main frame 1. The square shaft 45 at one end has an arm 47 connected by a link 48 to a double lever 49 pivotally mounted intermediate its ends on the bearing 46. The free end of said lever 49 is secured to the cross piece 9. 3 From the foregoing it is obvious that upon oscillation of the lever 18, when the lever 23 is locked thereto, the link 31 is actuated to move forwardly or backwardly, so that the square shaft is forced to rotate with its rounded terminal portions in the journal bearings 46 and simultaneously the arm 47 of the shaft rocks the lever 49 upwardly and downwardly, in accordance with the direction of movement of the lever 18, whereby the cross-piece 9 is raised or lowered. The auxiliary frame being secured to the cross-piece by means of the bracket and the bolt 10, follows the movement of the cross-piece 9, so that the scraper plates 14 will be raised or lowered at the pleasure of the operator. The link 32, articulated with the lower part of the lever 24, is secured to a lever 50 fitted to a square portion 51 of the frame bracket. When the lever 24 is actuated to move forwardly or backwardly, the arm 50 is turned in a horizontal plane, so that the auxiliary frame, and consequently the associated scraper plates will be placed at an angle with respect to the normal transverse position.

lVhile the drawings illustrate the prefered embodiment of the invention, it is un derstood that alterations and changes may be made in the construction. and arrangement of the parts. I, therefore, do not intend to confine myself to the details exactly as shown, but want to avail myself of all such, departures which fairly fall within the scope of my invention, as pointed out in the appended claims.

1. In a grading machine, the combination with a wheeled frame, of an auxiliary frame, scraper plates suspended therefrom, a crosspiece rotatably carrying said auxiliary frame, said cross-piece being adjustably'supported by the wheeled frame, a lever, connections between said lever and said crosspiece, and separate connections between said lever and the auxiliary frame.

2. In a grading machine, the combination with a wheeled frame, of an auxiliary frame, scraper plates freely suspended therefrom, means for maintaining the-scraperplates in operative position, a cross-piece rotatably carrying said auxiliary frame, said crosspiece being adjustably supported by. the wheeled frame, a lever, connections between said lever and said cross-piece, and separate connections between said lever and the auxiliary frame.

3. In a grading machine, the combination with a wheeled frame, of an auxiliary frame, scraper plates suspended therefrom, a crosspiece rotatably carrying said auxiliary frame, said cross-piece being adjustably supported by the wheeled frame, a lever, connections between said lever and said crosspiece, and connections between said lever and the auxiliar frame, said lever being adapted to selectively actuate said first and second named connections.

4. In a grading machine, the combination with a wheeled frame, of an auxiliary frame, scraper plates suspended therefrom, a crosspiece rotatably carrying said auxiliary frame, said cross-piece being adjustably supported by the wheeled frame, a pair of levers placed in juxtaposed relation, said levers having connections with said crosspiece and said auxiliary frame respectively, and a manipulating lever interposed between said pair of levers and adapted to be selectively coupled with said levers.

5. In a grading machine, the combination with a wheeled frame, of an auxiliary frame, scraper plates suspended therefrom, a crosspiece rotatably I carrying said auxiliary frame, said cross-piece being adjustably supported by the wheeled frame, a pair of levers each comprising an upper and a lower part, said upper part being yieldingly retained in fixed relation to said lower part, means for locking the upper parts of said lever in adjusted position, a third lever interposed between said pair of levers, and means on said third lever for disengaging the upper parts of said pair of levers and interlocking the same with said third lever, substantially as described.

6. In a grading machine, the combination with a wheeled frame, of an auxiliary frame, scraper plates suspended therefrom, a transverse shaft journaled in the main frame, a

double lever supported on said main frame, connections between said transverse shaft and one end of the double lever, the other end of said double lever being connected to said cross-piece, a manipulating lever, connections between said lever and said transverse shaft, and connections between said manipulating lever and the auxiliary frame, substantially as described. 7

7 In a grading machine, the combination with a wheeled frame, of an auxiliary frame, scraper plates suspended therefrom, a cross piece, a pivot pin connecting said auxiliary frame to said cross-piece, a transverse shaft journaled in bearings of the main frame, a double. lever pivotally supported on the main frame, connections between said transverse shaft and one end of said double lever, the other end of the double lever being connected to said cross-piece, guiding means for said'cross-piece, a pair of levers placed in juxtaposition, each of which comprises an upper and a lower part, notched quadrants for the upper parts of said pair of levers and adapted to receive a tooth of said upper parts, a manipulating lever interposed between said pair of levers and adapted to selectively disengage the upper parts from said notched quadrant and to simultaneously interlock said upper parts with said manipulating lever, and connections between said pair of levers of said auxiliar frame and said transverse shaft respective y.

In testimony whereof I hereunto afiix my 7 I signature.

XAVIER 1 COUNARD.

$0910: of this patent may be obtained for five cents each, by addressing the Commissioner Patents,

Washington, D. 0."

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