US319036A - Road-scraper - Google Patents

Description

2 Sheets-Sheet 1..

(No Model.)

J. P. SUMMERS.

ROAD SGRAPER.

Patented Jun 2, 1885.

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(No Mariel.) 2 Sheets-Sheet 2.

V J. P. SUMMERS."

ROAD SGRAPER.

m. 319,036. Patented June 2, 1885.

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JOHN P. SUMMERS, TIFFIN, OHIO.

ROAD-SCRAPER.

"Z01" forming part of Letters Patent No. 319,036, dated June 2, 1885.

Application filed December 6, 1884. (No model.)

To all whom it may concern:

Be it known that I, JOHN P. Soninnns, a citizen of the United States, residing at Tifiin, in the county of Seneca and State of Ohio, have invented a new and useful Road-Scraper, of which the following is a specification.

My invention relates to improvements in the construction of a road-scraper supported by a,

,wagonframe; and it consists of certain constructions, combinations, and arrangements of parts, hereinafter fully described and specifi-l cally claimed, wherebya powerful and easily operated machine for leveling roads is pro-v duccd.

In the accompanying drawings, Figure 1 is a side elevation of my invention, the two wheels nearest the eye being omitted in order to have no parts hidden thereby. Fig. 2 is a top view of the same with all the wheels in place. Fig. is a vertical section in the line 09 x of Fig. 1. Fig. 4 is a top detail view of the scraper and scraper-frame. Fig. 5 is a detail view of a portion of the scraper-frame and elevating mechanism, and Fig. 6 is a section in the line. 3 y of Fig. Fig. 7 is a sectional diagram showing the flexible connection between the frame which carries the scraper and the king bolt of the wagon.

The letter A represents a wagonfraine having a rigid rear axle, a, a swinging front axle, a, provided with a circle-bar, m, wheels a and a king-bolt, a". At or near the center of the wagon two transverse bars, a a, are clamped to the wagon-fran1e, and to these bars two vertical parallel guide-bars, a, are fastened which extend a suitable distance below the said wagon-frame. v

The reach B of the wagon passes between the bars a and in order to keep it steady and out of the way of the scraper below it is curved upward, and is prevented by a horizontal pin, 7), in the said bars from changing its position.

Upon the front portion of the reachametal plate, 0, is secured so that the king-bolt passes through the same and the reach. Said plate 0 is, behind the front axle, or, provided with a transverse horizontal pin, 0, to which two short links, 0', are attached, one at each side of the plate 0 and the reach 18. The lower ends of the links 0 are attached below the reach to a pin, c, parallel with pin 0, and this pin 0 is attached to a metal plate, 0, which is fastened to the front end or apex of a triangular frame, D, of the scraper, the described construct-ion forming a flexible connection at C, clearly shown in diagram Fig. 7 between the king-bolt and the scrapeabut preventing lateral movement. The frame D comprises a center bar, (I, and two diverging bars, (1 (P, the latter two fastened to the front portion of the bar (Z. The rear portions of the said three bars are fastened to astout diagonal bar or beam, 6, of the scraper E, the diverging outer bars being also secured to the rear side of said bar or beam by means of brackets c. The center bar, (I, is placed between the guide-bars a, which prevent it and the scraper from swaying laterally. The rear ends of the bars (1 d are connected behind the guidebars a by means of a bar, (1, thus giving more stiffness to the frame D and scraper E. The lower portion of the bar 6 is provided with a steel scraper-blade, e fastened in a forwardly-inclined position by means of bolts e to bent or angular braces 6 which are let into the bar or beam e and firmly bolted thereto with screws or bolts 6.

At the forward end of the scraper-blade is provided a hollow or gutter-shaped blade, a which prevents the earth scraped up near the corner from rolling away and falling behind the scraper.

Above the scraper-blade e a mold-board, e, is fastened to the bar or beam 6 by means of bolts e The scraper is lifted by means of hand canr levers F F, having their fulcrums a a on a stationary rod, a, and by chains f f, and spring-bolts j which latter engage with notches f 3 in arches f" f in order to hold the handlevers in place.

A chain, f, is attached to the top of the bar 6 at e and to link-straps f, which are pivoted at f l to the hand-lever F. The chain f is attached to the bar d, and link-strapf pivoted at f 9 to the hand-lever F.

The lower portions of thehand-levers F F are provided or formed with cams f f which bear upon levers G G, pivoted at g y to the wagon.

To the forward ends of the levers G G strong link-straps g g g g are pivoted, and the linkstraps 9 are pivoted at g" to an upright plate, 9 secured to the top of the bar or beam 6, while the links g are pivoted at g to an angular plate, 9 secured to the top of the bar 6 and the'bar (1 The link-straps g g f 6 f are each provided with a series of pivot-holes, as shown, in order to adjust the scraper for a deep or shallow cut.

The levers G G pass between the link-straps f 6 f respectively, and are thus prevented from swaying laterally, and the cams f f areso shaped that in being moved downward they do not bear upon the levers G G until the scraper has arrived at a depression at which it would be fit to operate.

When the scraper is not in use, the levers F F are swung back, and the bar or beam 6, with its attachments, is lifted sufliciently high from the ground to prevent the blade 0* from to uching the same.

\Vhen the scraper is to be operated, the levers F F are swung forward, whereby the chains ff are lowered and the scraper engages with the ground below. As long as the ground is not very hard the mere weight of the scraper and the forward inclination of the scraper-blade e suffice to keep the chains taut but if a very hard portion of the road, or a stone or root should strike the scraper,it would be instantly thrown up if it were not prevented by the links g, levers G G, and cams f f, whereby the weight of the whole wagon is employed to resist upward movement of the scraper. The scraper being hitched to the king-bolt, the strain upon the team moving the scraper is the same as that of an ordinary wagon. The pole is not affected by varying side strains of the scraper by reason of the unevenness of the ground, and accordingly the teams are not irritated by lateral jerks of the pole, as experienced with other constructions.

Another important advantage of my construction arises from the flexible connection 0 c c c 0* between the king-bolt and scraperfrarne, the links 0 causing, by their upward and rearward swinging movement, the forward end of the scraper to be lifted as the strain on the scraper increases, thereby diminishing the angle the scraper-blade forms with the ground and rendering its operation more effective.

The construction of the several connections in the simple manner herein described greatly facilitates the attachment of my scraper to a common farm-wagon, from which it may be disconnected readily and such wagon used for ordinary purposes,

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a diagonal scraper, the combination, with the king-bolt of a wagon, of scraper E, frame D, and flexible connection 0 c c c c, substantially as and for the purpose described.

2. In a diagonal scraper, the combination of .the center bar, (Z, attached to the bar 6, the

vertical guide-bars a of the wagon-frame A,

and a flexible connection between said bar 01 and the forward axle of frame A, substan tially as and for the purpose described.

3. Ina diagonal scraper, the combination of the scraper-frame D, cam-levers F F, levers G G, chains f f, and adjustable linkstra-ps ff g substantially as and for the purpose described.

JOHN P. SUMMER-S;

Witnesses:

J. H. RIDGELY, IRA E. STRONG.

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