US939003A - Road grader and drag. - Google Patents

Description

E. B. FRITOHMAN.

ROAD GBADER AND DRAG.

APPLICATION TILED MAR. 26, 190p.

93%,QG3Q Patented N012, 1909.

2 SHBETSSHEET l.

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ROAD GRADE-1R AND DRAG.

AlPLIGATIOH rum MAIL26, 1909.

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Quanta novel improvements ELMER B. FRITCHMAN, OF HUMANSVILLE, MISSOURI.

ROAD GRADER AND DRAG.

Specification of Letters Patent.

Application filed March 26, 1909.

Patented Nov. 2, 1909. Serial No. 485,951.

To all whom it may concern:

Be it known that I, ELMER B. Fnrrorumx, a citizen of the United States, residing at Humansville, in the county of Polk and State of Missouri, have, invented certain new and useful Improvements in Road Graders and Drags, of which the following is a specification.

The present invention embodies certain 'in road graders and scrapers.

The invention resides particularly in the general construction of the frame of the scraper including the arrangement of the draft beam and the scraper itself, and also in the peculiar mounting of a cutting disk in cooperation with the scraper and for facilitating the operation of cutting a ditch or any similar purpose.

For 'a full understanding of the invention, reference is to be had to the following detail description, and to the accompanying drawings, in which Figure l is a perspective view showing a road grader and scraping machine embodying the invention; Fig.2 is a top plan View; Fig. 3 is a fragmentary side elevation show ing more clearly the mounting of the cutting disk with respect to the scraper, and Fig. 4

is a vertical section partly broken and taken about on the line 44 of Fig. 2.

Throughout the following detail description, and on the several figures 'of the drawings similar parts are referred to by like reference characters.

prises a longitudinal draft beam 1, a diagonally arranged scraper 2 secured to the front end of the beam 1, a side 3 spaced from the draft beam 1, and a transverse rear bar l connecting the scraper with the beam and the beam with the side 3. It will be observed that the draft beam 1 is nearfl twice as long as the length of the body o the frame of the scraper, and this is advantageous in order to cause the scraper to be advanced in a straight line under actual conditions of work. The scraper bar 2 is pro vided at its lower edge with the customary blade 2 shown most clearly in Fig. 3 of the drawings. At the forward extremity of the scraper bar 2 is located a cutting disk 5, said disk being mounted rotatably upon the laterally projecting extremity. of a vertically adjustable standard 6 mounted in a suitable bearing 7 secured firmly by fastenings 8 to the front portion of the parts 2 and 3 of the frame. The lower lateral extremity of the standard 7 constitutes virtually a stub axle 9 for the disk 5, and. the means for raising and lowering said disk to throw the same into and out of action includes a hand lever 10 which is pivotally connected at its lower end, as shown at 11 to a vertical link 12, the lower extremity of which is pivoted at 13 to the outer end of an arm ll. projecting forwardly from the front end portion of the scraper bar 2. The lever 10 is pivoted at an intermediate portion, as shown at 15 to a plate 16 fastened in any suitable manner to the upper end'of the standard 7, the outer end of the plate 16 being formed with a toothed segment 16' with which a suitable hand-operated latch on the lever is adapted to engage and thereby lock said lever at a predetermined adjustment. It will be apparent that by depressing the lever 10 the standard 7 with the disk 5 will be lowered so that the disk may be locked in operative cutting position under which conditions it operates substantially as a rotary plow, in an obvious manner.

()n the inner side of the side 3 of the frame of the machine is mounted a lever 17 carrying on its lower end a cuttin wheel 18 in the form of a flat disk, and said lever 17 is a .ljustable so as to permit of raising and lowering the disk 18. On the rear extremity of the draft beam 1 is mounted a similar cutting wheel 19 carried by a standard 20 held in place by any suitable form of clamp 21. The pivot that supports the lever 17, and designated 22 also supports another lever 23 located on the outer side of the side 3 of the frame, a roller 2 1 being carried by the lower end of the lever 23. Both of the levers 17 and 23 are adjustable by means of suitable latches coacting with toothed segment plates on the frame of the machine. Arranged near the rear transverse bar 4: of the frame and mounted on the beam 1 is an operating levcr25 which is connected by a rod 26 with the standard 27 pivoted to the beam 1 and carrying at its lower end a supporting roller 28. Another lever 29 pivoted to the rear end of the scraper bar 2 carries at its lower end a roller 30 and the levers 25 and-29 are adjustable by suitable toothed segments coact. ing with hand latches thereon. A small me tallic draft arm Bl is rigidly attached to the front end of the draft beam 1 and may be be supported thcreonto facilitate moven'icntthereo't. When. however, lt'lh designed to put the machine in operation so that it will perform its function as a drag and scraper the several rollers aforesaid maybe elevated, the cutting wheel l8 lowered by the, lever 17 and the sc aping blade 2 thrown into action in an obvious manner.

The cutting disk 5 may or may not he arranged in cutting position when the scraping plate 2 operating, and according to the desires of the operator and the class of work to be :uccomplished. The cutting wheels 18 and 19 ot course eoact to insure movement of the machine in a straight line and prevent the side draft on the device from causing the machine to move eidewisc.

Having thus described the inventiomwhat is claimed as new is:

l. machine of the class described comprising a tramc.embodying a scraper bar, a scraping blade applied thereto, supporting members for facilitating movement of the frame over the ground, a cutting disk arranged at the front end of the scraping bar, a standard mounted for vertical movement on the front end of the scraper bar and' carr ving; said cutting disk, a toothed segment plate attached to the upper end of the stand ard. an arm projecting for ardly from the scraper bar, an operating lever pivoted to the segment plate. a link connecting an end of said lever with the arm above mentioned, wher by the standard may be raised 2111f lowered with the cutting; disx, and latch 113621118 on the last mentioned lever coaeting with the SQIlTlQll't plate to hold the standard at. a desired adjustment.

*2. In a machine of the class described, the combination of a loi'igitudinal draft; beam, a scraper bar connected between its ends with said beam and extending diagonal relative thereto, a scraping blade applied to the lower edge of said bar. the frame of the device including a side extending r rwardly from the front end of the St, p

bar and parallel to the draft beam, a transverse rear bar connecting the rear end of the side with the rear end portion oi the draft beam, rollers. supported upon the sidedralt beam and rear portion of the scraper bar, levers for raising and lowering said rollers, a out ting wheel movabl mounted on the side of the frame. a similar cutting wheel mounted on the rear end of the draft beam, and at out iingdisk arranged at the front end of the scraper bar.

lln testimony whereof l allix my signature in presence of two witnesses.

Elilillfllt FRl'lCl-llibkll. Witness 'IC Janus i Bnown, B. F. lnonan.

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