US285287A

US285287A - Device for sharpening plow-colters

Info

Publication number: US285287A
Authority: US
Publication date: 1883-09-18
Anticipated expiration: 1900-09-18

Description

(No Model.)

- V. A. MAYBERRY.

DBVIGE FOR SHARPENING PLOW "COLTEES.

Patented Sept. 18, 1883.

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UNITED ,STATES PATENT OFFICE.

VICTOR A. MAYBERRY, OF LA GRANGE, MISSOURI.

DEVICE FOR SHARPENING PLOW COLTERS.

SPECIFICATION forming part of Letters Patent No. 285,287, dated September 18, 1883.

/ Application filed June 26,1883. (No model.)

To all whom, it may cortcern:

Be it known that I, VICTOR A. MAYBERRY, a citizen of the United States, residing at La Grange, in the county of Lewis and State of .Missouri, have invented a new and useful Deprovide a simple. inexpensive durable, and r efficient device that is adapted to be attached to the frame of the colter, so that it will be automatically sharpened as the plow is driven.

In the drawings, Figure 1 is a perspective view, showing my device secured in position for operation. Fig. 2 is a top View of the same. Fig. 3 is a vertical sectional view taken through the wings of the sharpening device. Fig. 4 is a horizontal sectional View taken through the piece that connects the wings to the main frane.

Referring to the drawings, A designates an arch-piece, that forms the main portion of the frainevof my device, and is provided with longitudinal slots B B in its side pieces and with suitable clanps, C C, at its lower ends, by which it can be readily clanped in position on the frame of the colter, so that it will straddle the latter.

D D designate connecting-blocks, that have end flanges or shoulders, E E, and are secured-one to each side of frame A-by means of bolts F F, passing through slots B B, and by adjusting these bolts in the slots the said pieces can be adjusted vertically on frame A to change the incline of the sharpening-'files that are secured to the wings, the latter being bolted, as at G, or otherwise secured to the front ends of the blocks D D. These wings each comprise a main arm, H, to the bottom end of which is pivoted, as at I, a swinging arm, J, having au inwardly-proj ecting fiange, L, at its bottom, and having a plate, M, secured over its top end. In this fiange L is provided a socket, N, for the lower end of the file O, while the other end of the latter passes through a corresponding perforaton, P, in the projecting renovable plate M, as shown. The file is preferably a three-edged one, and the socketsN and P are therefore of triangular shape, so that the file can be turned, to use all of its sides. The files are also adapted to be reversed vertically, so that their entire surface can be utilized.

From the top ends of arms J eXtend outwardly projecting rods Q, that are p'referably bowed, and pass through a slot, R, in the main fixed arm H. y A coiled spring, S, is arranged around the rod Q, which will be compressed against the arin H when the arm J is forced outward by any bend or inperfection in the periphery of the colter, and will serve to return the arm J to its normal position when the bend has passed.

The operation and advantages of 1nyinvention will be readily understood. The files will be continually in contact with the edge of the colter, and will sharpen the same as it revolves, and, when desired, the sharpening de- Vce can be removed by simply Operating its securing-clamps. 4

I claim as my invention- 1. The combination, with the frame carryi ing the rotary colter, of a device secured to the frane and engaging the edgeof the colter to sharpen it as the plow is driven, substantially as and for the purpose set forth.

2. The combination, with the frame of the sharpener, adapted to be secured to the frame of the colter, of wings secured to this frame and carrying files arranged to engage the edge of the colter as it revolves, substantially as and for the purpose set forth.

3. In a device for sharpening plow-colte's, the combination of a frame by which it may be secured in position, pivoted inclined arms carrying files adapted to engage the edge of the colter, and spring nechanisn for forcing these arms into engagement with the colter, substantially as and for the purpose set forth.

4. The conbination of the arched main frame having the longitudinal side slots, the securing-blocks,having bolts working in the said slots, the wings secured to these blocks ,and comprising a fixed arm and an arm piv- VICTOR A. MAYBERRY.

NVitnesses WINTHROP H. SUDDUTH, Lnws W. HARDMAN. y