US4928A - Improvement in plows - Google Patents

Description

Plow.

Patented Jan. 13,1847.

UNITED STATES PATENT OFFICE.

LORENZO PROUTY, OF DOROHESTER, MASSACHUSETTS, EXECUTOR OF f DAVID PROUTY, DEGEASED.

IMPROVEMENT IN vPLOWS.

Specification forming part of Letters Patent No. 4,928, dated January 13, 1847.

To alt whom it may concern:

Be it known that DAVID PROUTY, of Dorchester, in' the county of Norfolk and State of Massachusetts, trader, deceased, to whose will the undersigned, LORENZO PROU'IY, of said Dorchester, is executor, invented in his lifetime a newand usefulImprovement in Flows; and I do hereby declare that the yfollowing is a full, clear, and exact description of the principle or character which distinguishes the said invention of said DAVID PROUTYfrom all other things before known, and of the manner of making, constructing, and using the same, reference being hadto the accompanying drawings, making part of this specitication, in Which- Figure 1 is a representation of the moldboard and share Ot' a plow with the said improvement of said DAVID PROU'IY applied to adapt the plow to the cutting of a wide furrow; Fig. 2, a representation ofthe same modified for a narrow furrow 5 Fig. 3, a view of the same without the improved part, but representing the excavation in the mold-board' for its reception; and Fig. et, separate views of the improved parts of Figs. l and 2.

The same letters indicate like parts in all the figures. e

It is necessary, in the mode heretofore practiced of constructing plows, to have different- -sized plows or shares for different widths of i'urrows, each plow or share cutting but one width of furrow, which is a source of much inconvenience to the farmer. The object of the said improvement of said DAVID PROUTY is to avoid this inconvenience by adapting one plow to various widths of iurrows by making a recess in that part of the wing of the moldboard next to the rear end of the share, into which pieces of different widths can beiitted. In this way any desired widthV of furrow can be cut with the same plow and share, not, however, less than the width of the share.

In the accompanying drawings, a represents the mold-board, which can be of any form desired, and b the share, itted thereto in the usual way. The wing of the mold-board, or that part of it which lies just back of the rear end of the share, is cast or otherwise formed with a recess, as represented at cin Fig. 3, and to this recess is tted and secured by screw-bolts c e a piece, d, ofrany required width, which may be removed at pleasure and another ot' greater or less width substituted, as shown in Figs. l and 2, the upper surface of this movable piece (which may be denominated an adjusting-wing) being properly adapted to the surface of the mold-board and share, so as not to rise above them. The forward end of this adjustable wing is fitted to the rear end of the share, and has the appear' apce, when put on, of being a continuation o 'it.

From the foregoing it will be evident that each plow can be accompanied with any desired number of these adjustable wings and of different sizes, so that by removing the screw-bolts e e they can be changed and the plow adapted to the cutting of a wide or narrow furrow at pleasure. y

It is not intended by this specification to limit the invention to any particular mode of fastening or to any particular kind of metal, although the inventor preferred, and the said LORENZO PROUTY, his executor, prefers, using screw-bolts with countersunk heads as the means of fastening, and cast-iron as the metal best adapted to the forming and fitting of the parts, as well as to their durability.

What isclaimcd as the invention of said DAVID PROUTY, and is sought to be secured by Letters Patent, is-

The adjustable and shifting wing or wings, in combination with the mold-board, as described, by means of which the same plow can be adjusted to the cutting of furrows of different widths, as set forth above.

LORENZO PROUTY, Emeoutor.

Witnesses GEO. KIMBALL, ISAAC M. IRELAND.

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