USRE10666E - adams - Google Patents

Description

-3 SheetsSheet 1.

(1:1), ADAMS.

301w GRADING MACHINE.

Reissued Dec. 1,1885.

A A lvli ROAD GRADIHG MACHINE.

BEES.

Sheets Sheet 3.

ROAD GRADING MAUHZNM.

UNITED STATES PATENT OFFICE.

,TQSEFH D. rLDi-XMS, OF MARSHALL, INDIAXA.

ROAD-GRADING MACHINE.

SPEGIFICATIUN' iornnng part of Reissued Letters Patent No. 10,666, dated December 1, 1885.

Original No. 310,165, dated January l 1835. Application for reissue filed Ocioher 2.9885. Serial No. 181,323. v

To all whom.- z't um/g, concern.-

Be it known that l, Josnrn D. Aunts, a citizen of the United Slal residing at Man shall,'iu the county of Parke and State of Indiana, have invented eerliai 11 new and useful Iniprovernents in Road-(funding Dll'achines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain new and useful improvements in that class of wheeled roadgrading machines in which the scraper or leveling bar is suspended so that its opposite ends are iinlepondenlly adjustable vertically beneath a frame or axle having suitable carrying-wheels, and i. which the scraper or leveling bar is arranged obliquely to the line of movement of the machine and to the is ,S of the carrying-wheels.

The objects of my iinprcvoi'nenls are, first, to produce a road-grading machine of the. class mentioned in which the spindles on which the carrying-wheels turn are adj u sl'abl y secured to the carrying frame or axle, for the purpose ol'inclining the main wheels simultaneously and in the same direction by means of intermediate nicchzniisnr connecting the said spindles, and arrangelil to be easily controlled by the operator when the machine is in operation, so that the axes olthe wheelspindles will be substantially at a right angle to-the direction olf pressure, due to the 001m bincd weight 0F the machine, and the side draft, due to the load and the oblique position of the scraper, and the wheels will be in a position to receive and resist said side. dral't most eilectually and to move without undue friction against the ends of their hubs, thereby obviating the great friction attendant to this class of machines, and lessening the draft.

My objects are, further, to prevent the main carrying-wheels from slipping sidewise'when the machine is in operation, and to provide means for adjusting the machine, as well as the scraper or leveling bar, to. suit different inclinationsof the road; aud'to this end the invention consists in novel 'leatures of construction and combinatiouand angeinent of parts, all as wilhloe hercinalfler i'ully deannexed.

scribed, and set forth in the claims hereto" Referring to the accompanying drawings,

Figure 1 represents a View in perspective of my improved machine. Fig. 2 is a vertical machine is at work. Fig. 3 is a top view'or' pla n.

Figs. 4, 5, and 6 are detail views, to be hereinafter referred to. p

In the drawings, A rcpresentsthc triangular main frame of the machine, consisting: of the transverse beam or main axle a, right-angle lar beam a, and obliquely-arranged beams c framed and secured together in any suitable manner. 7 i N 1 l3 represent the main'supporting-wheels of the machine, mounted and secured upon the spindles b b in the usual manner.

For the purpose 01 allowing the position. of

the wheels and spindles to be changed to re sist the changed direction of pressure thereon due to the load and the oblique position oft-he scraper or leveling bar Hwhen the machine I is in operation, said spindles have their inner ends pivoted to the ends of the main axle a,

so as to swing in a vertical plane, thereon, by

means of journals b 1), working in journalhearings I) b", secured to the said main-axle. The inner'ends of the wheel-spindles are also provided with slotted vertical uprights o c, pivotally connected by a transverse bar, C, having a pivoted hand-lei'er, D, centrallycon-- nected thereto, which hand-lever is secured in any desired position. it may be adjusted ten in small pivoted iing er-leveiyd, having a spring pawl, cl, adapted to engage the teeth of the semicircular bar d", secured to the axle a.

B y means of the pivotedspindles and abovedeserihed operating mechanism the wheels B B maybe thrown from their normal right-angular or vertical position with reference to the main axle a to an acute or oblique angle thereto, as shown in dotted lines, Fig. 2. .This angular adjustment of the spindles and wheels brings the bearing of the hubs, when the machine is in operation, substantially at right angles to the axes of and uniformly along the length of the wheel-spindles, whereas withoutsuch justable spindles the bearings of the hubs of the two wheels must be partially against the I E, on the inside of a left-hand machine, and

vice versa in a righthand machine. The objeet attained by the flange is to prevent the machine from slipping from the load, the wheels, being thrown at an angle, as before described, serving to drive the fiangesinto the ground, thereby holding the wheels firmly in position. j

F represents a caster-wheel for supporting the rear end of the n1achine,whi.ch caster-wheel is'journaled in the lower end of a vertical standard, f, pivotally connected by parallel bars f f to vertical uprights secured to the niain frame of the machine.

F. sition.

To the rear end of the beam h is'secured a vertical upright, c, and said upright and standard f are provided with slots in their upper ends, in which is fulcrumed alever, G, having a finger-lever, 9, provided with a spring=pawl, g, adapted to'engage the teeth of the semicircular bar 9, secured to said. upright c, and thereby secure the lever G inany desired po- By raising or lowering said lever the rear end of the main frame will be respect 'ively raised or lowered. I

H represents the usual scraper or leveling bar, having pivoted upon itsrear sides dovetailed-blocks h h, adapted to work in corre-, sponding grooves, 2', formed in the vertical uprights 1 l, secured and braced to the main i'ranie of the machine, for the purpose of guiding and securing the scraper from any lateral movement, while permitting of a free vertical movement in adj ustiingthe scraper to any desired height.

' 'llhe'rear end of the scraper-bar is pivotally and adjustably connected to the pivoted lever K in the following manner: A vertical bar, J,

.is secured at its lower end to "the scraper-bar and provided at its upper end with a series of V horizontalslotsul. crmhiat i latt ei nn r ends in enlarged circular openings jf.

The pin L, which conncctssaid bar J with the lever 'K, isso made that atone end its diameter corresponds with the slots j, while at its other end the diameter corresponds with the circu lar openingsj. (See Fig. 4.) The pin L can therefore be laterally adjusted, so that the smaller diahieter of the pin will come opposite the slotj, when'thc bar Jlpan he slid to one side and raised or lowered to admit the pin in any one of the horizontal slots when it is desired to adjust the scraper-bar, after which specified.

By means'of the pivoted lever K, r

which is acccomplished in the following mannerr A vertical bar, M, secured to the scraperbar,is provided atits upper end with atoothed bar, at, which slides in a guide-bar, m, secured to the bar or upright I, and meshes with a toothed segment, a, secured to a lever, l

N, and by raising and lowering said lever the scraper-bar will be vertically adjusted, and can be secured in any desired position by the fingerlever a, having a spring'pawl, n

adapted to engage the teeth of the semicircular bar a i I am aware that road-scraping machines have before been made ,in which the carrying Wheels were mounted on spindles which were pivoted to the main axle, and were arranged to be inclined toward or from each other at opposed angles,forthe purpose of raising the 7 wheels and throwing the entire weight of themachine upon the scraper, which in such cases was arranged substantially parallel with the main axle and at right angles to the line of draft, and I do not claim such a construction.

I am also aware that it is not new to pivot the scraper-bar to vertical uprights, said uprights passing through suitable gnide'picces, so that the scraper-bar may be guided in ad justing it to different elevations and I. therefore make no broad claim to such construction.

It will be observed that by my improved machine, as-above described, I am enabled to adjust the scraper or leveling bar to suit any inclination of thcjroad, and also adjust it in accordance with the adjustment of the inain supporting-wheels. l

The drivers seat and the tongue or pole are arranged in the usual manner in this class of machines. I

The operation of the machine is obvious from the foregoing, and further description is therefore deemed unnecessary.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is

ICC

1. In a road-grading machine, the conwi- M nation, with the scraper or leveling bar and supporting-wheels, of the pivoted and adjusta ble spindlcs and the adjustable casterwheel, substantially 2; In a roadgrading machine, the combination of the pivoted and adjustable spindles and the supporting-Wheels provided with the projecting circular metallic fianges, substantially as and for the purpose specified.

as and for the purpose all combined and arranged to cooperate substantially as and for the purpose set forth.

4. In a road-grading machine, the combination of the slotted caster-wheel standard, the parallel bars f f, pivoted to each side of said standard and connecting the same to the. I

main frame, the upright e, slotted at its upper end, and the lever G, fulcrurncd in said slotted standard '6 and loosely pivoted to the upright 5. In a road-grading machine, the combi-- nation of the scraper or leveling 'barhaving the blocks h h, vertical uprights' I-I, having corresponding guide-grooves for said blocks,

and mechanism for connecting and adjusting said bar relative to the main frame, substantially as herein shown and described. 6.- The, combination, with the scraper or leveling bar and the pivoted lever, K.,of the f, substantially as described, and for the pur vertical bar arms-gins horiiont'al slotj, enlarged circular opening j, and 'a lockpin having its ends of difierent diameters, s'u'bstantiaily as and for the purpose herein shown and described V JOSEPH D. ADAMS; Witnesses:

H P. HooD, V. M. Hooni

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