US939404A - Scraper. - Google Patents

Description

F. J. DUMOND 61; D. W. HALL.

SGRAPER.

APPLIUATION FILED APB. 12, 1909.

Patented Nov.9,19o9.

UNITED STATES PATENT QFFCE.

FRANK J. DUIVIOND AND DAVID W. HALL, OF ROSE, KANSAS.

SCRAPER.

Specication of Letters Patent.

Application filed April 12, 1909.

Patented Nov. 9, 1909. Serial No. 489,485.

To all whom t may concern:

Be it known that we, FRANK J. DUMOND and DAVID W. HALL, citizens of the United States, residing at Rose, in the county of Voodson and State of Kansas, have invented certain new and useful Improvements in Scrapers, of which the following is a specification.

Our invention relates to new .and useful improvements in Scrapers or drags, which are especially adapted to surfacing and scraping roads and opening ditches.

The objects of our invention are to provide a scraper or drag of simple construction, economical and durable, and readily adapted to surfacing or leveling roads or opening ditches, and composed of new and useful improvements, especially a main beam land side, with a fixed rear guide projecting below the beam sufficiently to enter the ground to prevent slipping or side draft; and a scraping beam provided with a metallic cutting blade, extending along the bottom, and a perpendicularly arranged lifting rod, loosely attached by suitable metal straps at `the extreme end, being curved at its lowerend, forming a shoe or ground slide and operated by a lifting lever adjusted to an upright shaft attached tothe beam, to raise the beam to any desired height from the ground, to accommodate uneven surfaces, escape obstacles, remove large or small quantities of dirt in one draft, to obviate the use of elevating wheels, which clog and are soon out of order, and to raise the beam when not in use.

With these objects in view, and others that will appear from a detailed description of the invention herein set forth, and particularly pointed .out in the claims, reference being had to the drawings which accompany and form a part of this specification and in which like reference letters indicate like parts in all figures and in which,

Figure 1, is a top plan view of the implement. Fig. 2, is a side elevation. Fig. 3, is a detail in elevation of the rear metal guide on land side beam.

Referring specifically to the drawings, 1 represents the main beam or land side, constructed of plank and conveniently about twelve feet long, twelve inches wide and two inches thick. This is connected at a point with a scraping beam 2, which may be about eight feet long, twelve inches wide and two inches thick; this beam is provided with a metal blade 3, suitably bolted at the bottom, for cutting or scraping purposes, and extending in a V shape around the nose of the implement a short distance, 3, on the main beam. Beams 1 and 2 are connected near the rear by cross brace 1, and near the front by cross brace 5, of suitable length; in connection with these braces are metal tie rods, (3*6, bolted in openings, 7-7, in beams 1 and 2, for the purpose of giving strength and support to the scraper. On the rear end of beam 1, is provided a metal guide 8, bolted at 8 to the beam, and projecting below the beam in such manner as to enter the ground suiiiciently to prevent slipping or side draft.

9 is a lifting lever, extending from the front to the rear of beam 2, where it is pivotally attached to elevator rod 12, at the end 13, and to fulcrum bar 11, in close proximity, 10, cooperating in such manner as to elevate the beam 2, as hereinafter detailed.

Fulcrum bar 11 is pivoted at its lower end 14, to beam 2, at a suitable distance from the rear to give the lever 9 sufficient power to raise the beam 2, by elevating the lever, thereby lpressing down rod 12, causing its curved portion 23, to come in contact with the ground, forcing the beam 2 up to any desired height from the ground. j Approximately in the longitudinal center of beam 2, and near its upper side, is pivoted, 15, an upright shaft 16, provided with receiving notches 16, adapted to staple 17 on the lever 9, and as the lever is lowered or elevated to raise or lower beam 2, the staple on the lever is forced into these notches in such manner as to hold the lever in any desired position, thereby forcing the beam 2, up or down, coperating with the action of the lever and lifting rod 12.

A wire coil spring 18, is attached by eye screw 19 to beam 2, and to shaft 16 on its notched side by eye screw 20; the resiliency of this spring causing the shaft 16 to hold firmly in notches 16 the staple 17 on lever 9, thus retaining the lever in position.

21-21 are metal straps substantially U shaped, extending loosely around the rear end of beam 2, and bolted at 22, to the beam, in which elevating rod 12 is inserted in such manner as to permit its moving freely up or down as the lever 9 is `operated in raising or lowering beam 2. Elevating rod 12 extends below the bottom of beam 2, terminating in a curve outwardly from the end of the beam,

forming a shoe or ground slide, 23, on which the beam rides when elevated from the ground by manipulating lever 9.

24k-24 are draw rods suitably fastened to beam 2 by eye bolts, 25-25, and connected at their outer ends by chain links, to provide even draft for the scraper. By changing the hitch of the connecting chain links the angle of draft may be varied and adjusted as desired. y

In the operation of the scraper, the guide 8 on beam 1, prevents side draft, forcing the cutting blade 3 to scrape the dirt in its forward movement. In dumping or evening the dirt, the lever 9 is raised, and operating on the fulerum bar 11, presses down the elevating rod 12, causing its curved portion 23, to press the ground, thereby raising the cutting beam 2, to any desired height, and the staple 17, on lever 9, forced into the notches 16 on the shaft 16, holds the lever securely in position by means of the resilient coil spring 1S. This is an improvement over the present methods of operating scrapers, especially those with wheel attachments for raising or lowering the scraping beam, as the wheels clog and are soon out of order, and difficult of repair; and in addition to this, the height of elevation of the beam from the ground is very limited, and not adjustable to a desired position in moving or dumping large or small drafts of dirt. l/Ve obviate these defects and objections by our lifting rod and lever attachment.

Having described our invention what we claim as new is 1. In a scraper or drag, the combination with a Inain beam or land side, and a scraping beam with a cutting blade on the lower surface, the beams connected at their front ends and supported by front and rear cross braces and tie rods; a perpendicular elevating rod slidably mounted by metal straps on the rear of the scraping beam, and curved at its lower end, forming a ground slide, its upper end pivotally attached to the end of the lifting lever; a lifting lever pivotally attached at one end to the elevating rod and fulcrmned on the bar, and adjustable to the notched upright shaft; a notched upright shaft pivotally attached to the scraping beam, and a coil spring attached to the shaft and beam; a fulcrum bar, one end pivoted to the scraper beam and the opposite end to the lever; and equalizing draft rods, all substantially as and for the purposes described.

2. In a scraper or drag of the class described, a main beam and a scraping beam, connected at their front ends and provided with supporting cross braces and tie rods; a slidable elevating rod, curved at its lower end forming a land slide, its upper end pivoted to the lever; a lifting lever pivoted to the elevating rod and pivotally operating on the fulcrum bar, and adjusted to a notched upright shaft by staple attachment; a notched upright shaft pivoted to the scrap ing beam near the top and approximately in the longitudinal center; a coil spring con nected to the shaft and beam, all substantially as described.

In testimony whereof we aHiX our signatures in presence of two witnesses.

FRANK J. DUMOND. DAVID IV. HALL.

iitnesses J. I-I. SToLL, B. N. WOLF.

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