US261693A - Grading-machine - Google Patents

Description

(No Mode-1.) I 2 shamssheetY 1.

s. P. EVANS.

. GRADING MACHINE. 120.261,693. 'Patented July 25, 41822.

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S. P. EVANS.

GRADING MACHINE.

No. 261,693. vPatented July/ 25, 1882.

l i ATTORNEYS UNITED STATES PATENT OFFICE.

SILVANUS P. EVANS,.OF GEORGETOWN, OHIO.

GRADING-MACHINE.

`Sl?IECIIEICA'IION forming part of Letters Patent No. 261,693, dated July 25, 1882.

Applicationl filed April 26, 1882. (No model.)

To all whom it may concern:

Be it known thatl, SiLvANUs P. EVANS, a

l citizen of the United States, and a resident of Georgetown, in the county of Brown and State of Ohio, have invented a new and valuable lmprove-ment in Grading Machines; and I do hereby declare that the following is a full clear, and exact description ofthe construe' tion and operation of the same,reference being had to the annexed drawings, making a part of `this specification, and to the letters and figures of reference marked thereon.

Figure l of the drawings is a representation of a plan view of the grading-machine. Fig. 2 is a longitudinal section through the line :c cc, Fig. 1. Fig. 3 is a side view. Fig.4 is a cross-section through the lineyy, Fig. 1. Fig.

5 is a rear view, and Fig. 6 is a perspective This invention has relation to machines for grading roads and similar purposes; and it consists in the construction and novel arrangement, inV connection with the angular fplowiron, of the bent or loop-form landside; the

, form, having its upper and lower edges parallel. The long oblique branch or wing a of the plow-iron is provided with a wooden lining, brace, or body-board, b, which is firmly riveted or bolted thereto. The short branch c of the plow-iron extends directly to the rear, and to it is bolted or riveted the bent or loop-form landside-iron d, whereof the bowed end is in rear, and the outer edges of the upper and lower branches, c and c', are level with the upper and lower edges of the plow-iron. A transverse wood-lined brace-bar, g, extends from the middle ofthe bowed end of the landside-iron to the central portion of the rear end of theoblique wingof the grader, and a centrall y-arran ged cleat or rib-support, h, extends horizontallyalong the inner side of the oblique wing, to which it is firmly secured.

B represents thelaudside-extension or guidebar. This consists of along wooden bar, k, which is secured to the lower branch of the loop-form landsideiron dby means of bolts l,

'passing through perforations m thereof, and

nuts n. That portion of the bar k which is in rear ot' the landsideiron is provided on its outer side Vwith the long face-plate lo, the upper and lower ed ges,.1', of which project above and below the upper and lower surfaces, respectively, of the wooden bar k, in the form of flanges, designed to cut their way into the soil, and thereby maintain the direct'. movement of the landside in a steady and uniform manner. The upper bar or branch, e, of the landside-iron is also provided with bolt# holes m, in order that the landside-extension B may be secured thereto when the grader is reversed to throw the earth to the right. In

.reversing the grader it is turned over and the landside-extension is bolted to thelclwer branch of the landside-iron.

G indicates the drivers platform, a trapezidal board having above and below one of its oblique edges the marginal cleats s, whereof the lower one is designed to rest on the wooden body-bar 7c of thelandside-extension, while the opposite edgeof the platform rests on the central cleat or rib-support, h, of the wing. The platform is therefore removable and reversible.

D represents the double-loop hitch, which is secured by three rivets or bolts to the front portion of the wing, somewhat back of the angle end E of the plow-iron. The upper and lower loops, c, of the hitch are arranged in similar positions relative to the upper and lower edges of the win g, being directed toward the same obliquely and stopping a little short thereof, as indicated in the drawings. A long draft-link, F, is designed to engage the upper loop o, and to extend across the top of the wing, somewhat oft' from the landside line, so that it will be nearer the center of resistance of the grader, and will tend, under the action of the draft, to keep the landside in proper position. The position ot the draft-link over the edge ot' the wing also tends to keep the angle end E of the plow-iron down to its work in the soil.

The rear end of the wing of the grader is provided with al hinge-plate, w, havingw vertically arranged at its rear portion the barrelcyes z and between the same spaces z. G is an extension of the wing, having a wooden bodybar, H, on its inner surface, above and below which it projects in ange form, as indicated at a.

the latter' by the vertical pivot-bolt c.

The front end of the extension is provided with a hinge eye or connection, b', which is designed to tit in one or more of the spaces z ofthe hinge-plate w, and to be connected to The position ot the parts forming the hinge-joint is such that when the connection is made the forward end ofthe extension-plate G will bein opposition tothe rear end of the Wing-plate a, the latter heilig beveled from the inside, as at d', to cover the forward and outside beveled end, e, of the extension, as shown in the drawings.

Along the middle portion ot' the body-bar of the extension G a series ot' peri'orations, g', is made, and opposite thereto in the body-bar of the landside-extension is provided a similar series of perforations, h. K is an adjustable transverse brace having bent ends or catches lc', designed by engagement with a perforation, g', and a perforation, h', to connect the wingeXtension G to the landside-extension, so that the former will be held firmly inV position. The wing-extension is adjustable and may be placed -in line with the wing itself; or it may be held at either of several angles thereto, according to the lateral spread of earth required in the Work. The wing-extension is reversible, being readily brought into position, so that its lower or working edge shall be in line with the lower or working edge of the wing. ln this construction it is designed to secure lightness without sacriiicing strength or efficiency, and therefore the vertical breadth of the landsideextension B and the wing-extension G is made much less than that ot' the front angular portion or body of the grader comprising the plowiron and wing and thelandside-iron.

Having described this invention, what I claim, and desire to secure by Letters Patent,

1. In a grading-machine, the combination, with the reversible front angular portion or body, ofthe landside-extension, of less vertical breadth than the angular body portion, and reversible, by adjustment, to either branch ofthe landside thereof, substantially as specified.

2. A reversible grading-machine having a landsideextension of lless vertical breadth than the angular front or body portion, and a removable and reversible drivers platform, substantially as specified.

- 3. In a grading-machine, the angular plowiron having the wing a and short branch o and the bent or loop-form landside-iron d, secured thereto, substantially as specitied.

4. A grading-machine having the angular plow-iron, loop-form landside-iron d, removable and reversible landside-extension B, central transverse brace, g, central supporting-rib, It, and reversible drivers platform C, substantially as specified. t

5. In a grading-machine having the landside-iron d, landside-extension B, and oblique grading-wing G, the double-loop hitch D, secured to said wing in rear ot' the angular end ot the grader and oft' from the landside, and the draft-link F, connected to the upper loop ofthe hitch and extending over the top of the wing, substantially as specified.

6. A road-grading machine having an oblique grading-wing, and hinged thereto the reversible and angularly-adjustable wing-extension G, and the adjustable brace K, connecting said wing-extension to the extension of the landside, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

SILVANUS P. EVANS.

Witnesses:

PHILIP C. MASI, J AMES J. SHEEHY.

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