US861576A - Road scraper and leveler. - Google Patents

Description

m 861,576. PATENTED JULY.30, 1907. R. A. DINSMORE.

ROAD SGRAPER AND LEVELER.

APPLICATION FILED .A.IR .18,1907.

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APPLICATION FILED APR.18,1907- PATENTED JULY 30, 1907.

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ROBERT A. DINSMORE, OF NEW ATHENS, OHIO.

ROAD SCRAPER AND LEVELER.

Specification of Letters Patent.

Patented July 30, 1907.

Application filed April 18, 1907. Serial No. 368,915.

To all whom it may concern:

Be it known that I, ROBERT A. DINsMoRn, a citizen of the United States, residing at New Athens, in the county of Harrison and State of Ohio, have invented certain new and useful Improvements in Road Scrapers and Levelers, of which the following is a specification.

This invention relates to means for leveling and re pairing earth roads after rain and storm, or whenever required, to obtain a proper surface both as to camber and to remove projecting parts and to fill in hollow places with the result of securing a smooth surface.-

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction and the means for effecting the result, reference is to be had to the following description and accompanying drawings.

While the invention may be adapted to different forms and conditions by changes in the structure and minor details without departing from the spirit or essential features thereof, still the preferred embodiment is shown in the accompanying drawings, in which:

Figure 1 is a top plan view of a road leveler and surfacer embodying the invention. Fig. 2 is a side view thereof. Fig. 3 is a detail perspective view of a scraper, the supporting and actuating means therefor and parts of adjacent smoothing blades. Fig. 4 is an end view of a smoothing blade showing a portion of a longitudinal bar to which it is attached. Fig. 5 is a detail perspective view of a pair of braces for connecting the two side portions of the machine. Fig. 6 is a detail view in elevation of one of the transverse smooth ing blades. Fig. 7 is a front view of one of the side smoothing blades. side rear smoothing blades.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The machine comprises a series of longitudinal bars, two outer bars 1 and two intermediate bars 2. The longitudinal bars of metal and are wide and thin and arranged with their width in a horizontal plane. For stiffness and rigidity, the longitudinal bars are ribbed. A series of smoothing blades 3 are arranged upon each side of a median line and have a forward divergence, the inner rear ends clearing one another and being spaced apart in the length of travel of the machine to admit of the earth moved inward from the sides of the road, escaping from one blade to the next as the machine is drawn over the road. The blades 3 incline upwardly and forwardly from their lower scraping edges, this being found to give the best results in removing elevated portions and filling depressions to pro duce a smooth and level surface. The lower edges of the scraper blades may be straight or curved according to the transverse outline of the completed surface of the road. The inner edges of the blades are higher than Fig. 8 is a detail view of one of the j the outer edges in order to give the proper camber or central rise to the road to insure lateral shedding of water in the event of rain, sleet or the like. The smoothing blades may be of any length, width and thickness according to the size of the machine and the nature of the road to be leveled and surfaced. The blades 3 of each series have a parallel arrangement and are rigidly connected to the longitudinal bars. Front and rear bars 4 extend transversely of the machine and are rigidly connected to the intermediate longitudinal bars 2.- The front bar 4 is rigidly connected at its ends to the front smoothing blades 3. Draft bars 5 are c011- nected to the foremost smoothing blades near their outer ends and are adapted to have doubletrees c011- nected thereto and to which the team is hitched for drawing the machine over the road when it may be required to surface the same. A series of scraper blades 6 are provided at each side of the intermediate longitudinal bars 2 and have a progressive arrangement whereby the earth discharged from the inner rear end of one blade is taken up by the outer front end of the next succeeding blade with the result that the earth is moved from the side of the road towards the center and distributed thereover providing a smooth and level surface. The scraper blades 6 are located intermediate of adjacent smoothing blades 3 and are vertically adjustable being moved up and down by means of levers 7 which are connected to standards 8, said levers being held in an adjusted position by a suitable latch mechanism. Bars 9 support the scrapers, their mountings and adjusting means. These bars 9 are secured to the upper edge portions of adjacent smoothing blades. Each lever 7 has a latch bolt 10 cooperating with a curved notched bar 11 for holding the lever and scraper blade 6 in the adjusted position.

To give stability and rigidity to the machine, forwardly diverged braces 13 are secured to the outer longitudinal bars 1 and to the rear cross bar or smoothing blade 4. Other braces 14 are interposed between and connect the inner ends of the smoothing blades 3 to form a substantial structure. For light work, the weight of the machine is suflicient to attain the desired end, but for heavy work, it may be necessary to weight the machine to cause the scraper blades to remove proje'cting portions and to move the earth so as to fill in hollows and depressed portions. By properly weighting the machine, the desired camber or elevation of the road may be obtained.

Having thus described the invention, what is claimed as new is:

1. A machine for leveling and surfacing roads, the same comprising oppositely inclined sets of smoothing blades, and scraper blades arranged at a ditterent angle and located intermediate adjacent smoothing blades and having a progressive arrangement and adapted to be adjusted vertically.

2. A road scraper and surfacer, comprising forwardly diverged smoothing blades; the inner ends of the blades of one set being spaced from the inner ends of the blades of the opposite set, scraper blades arranged between the smoothing blades of the different sets and forwardly diverged at a different angle to the smoothing blades and having a progressive arrangement and means for vertically adjusting the scraper blades.

3. A road leveler and surfacer comprising longitudinal bars, a series of smoothing blades rigidly connected to the longitudinal bars and forwardly diverged and inclined upwardly and forwardly from their lower edges, bars connecting adjacent smoothing blades and having a progress ive arrangement, and adjustable scraper blades support ed by said bars and having a progressive arrangement and set so as to incline forwardly and outwardly.

4. A machine for surfacing and leveling the roads, the same comprising outer and intermediate longitudinal bars,

forwardly diverged smoothing blades connected to the longitudinal bars and having their inner ends spaced apart, short bars connecting the smoothing blades and having a progressive arrangement, scraper blades adjustably supported by said short bars, front and rear transverse smoothing bars having rigid connection with intermediate longitudinal bars, draft bars for rigid connection with the outer portions of the foremost smoothing blades and adapted to have the draft applied thereto, and cross braces between the several longitudinal bars and smoothing blades.

In testimony whereof I aflix my signature in presence of two witnesses.

ROBERT A. DINSMORE. [L. s.] Witnesses:

JOHN H Escrme, ARTHUR E. ESTEP.

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