US4112A - Improvement in plows - Google Patents

Description

'8. SH EARER.

Plow.

Patented July 14. 1845.

UNITED STATES PATENT OFFICE.

SAML. SHEARER, OF BIG PRAIRIE, OHIO.

IMPROVEMENT IN FLOWS.

Specification forming part of Letters Patent No. 4.ll2, dated July 14, 1845.

To all whom it may concern.-

Be it known that I SAMUEL SHEARER, of Big Prairie, in the county of Wayne and State of Ohio, have invented a new and useful Improvement in the Lock and Construction of Cast-Iron Flows; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which Figure 1 is a View of the plow on the landside. Figs. 2, 3, 4 are detached parts; Fig. 5, views of the mold-board side with the share removed.

The nature of my improvements consists in the manner of fastening the parts of a plow together, and the form of the mold-board, and in attaching a shoe or runner to the lower edge of the mold-board, behind the share.

The mold-board a is concave over its entire surface and runs out acutely at its front edge. The share is put onto a recess formed at 1)- its front end-which it fits, the front edge running up to form a cutter, o, in front of the mold-board, and does not extend quite up to the beam.

There is a mortise, d, in the lower front c'orner of the mold-board, through which a staple on the inside of the share (see 0, Fig. 2) is put and keyed on the under side the landside of the cutter and share, overlaps the landside, so as to fasten all parts together, as hereinafter described.

The lower front part of the mold-board is projected at f, so as to be in a line with the plane of the landside, and a recess is cut into it, into which said landside fits. At the rear edge of-this recess there is a small projecting stud, 9, (see Fig. 3,) and a hole, It, is also made in the face or bottom of the recess.

There are projections on the inside of the landside, as shown at Fig. 4, and at the point z, opposite the stud g, a projection is formed, with a recess in it, as shown in the drawings, into which said stud fits.

The front edge of the mold-board and landside are flush with each other and taper to an edge in front, which fits a groove in theshare that binds all together.

There is a shield-plate, It, on the lower edge of the landside, that is of. usual construction and attachedin any of the known ways.

Thereis a small shoe, m, (seeFig. 3,) affixed to the mold-board to prevent its wear at the heel, which causes it to run straight and keeps it at all times up to its position. This is very important in the use of my construction.

In putting my plow togethr the recess 11 is slipped over the projection g, and the stud l on the landside hooked into the hole It, and the edges of the mold-board and landside in front are brought together. The share is then put on, which laps over all and binds them, and a key, as before described, fastens it. The other parts are formed and attached in the usual way, except that the standard leans over toward the landside, which carries the beam over that way.

I wish it to be understood that I do not claim the mere addition of a separate casting or shoe to prevent wear; but

Having thus fully described my improvements, what I claim therein as my invention, and desire to secure by Letters Patent, is-- The combination of the shoe m with the moldboard of the above described plow, in the manner and for the purpose described, so that the plow shall always run in the proper position.

' SAMUEL SHEARER.

Witnesses:

J. J. GREENOUGH, '1. G. DONN.

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