US686457A - Reversible plow. - Google Patents

Description

No. 686,457. Patented Nov. I2, l90l.

T. A. JACKSON. 4

REVERSIBLE PLOW.

(Application filed July 30, 1900.)

(No Model.)

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UNITED STATES PATENT OFFICE.

THOMAS ANDREW JACKSON, OF VINING STATION, GEORGIA.

REVERSIBLE-PLOW.

SPECIFICATION forming part of Letters Patent N 0. 686,457, dated November 12, 1901.

Application filed July 80, 1900. Serial No. 25,311. (No model.)

To all whom it may concern:

Be it known that I, THOMAS ANDREW J ACK- SON, a citizen of the United States, residing at Vining Station, in the county of Cobb and State of Georgia, have invented a new and useful Reversible Plow, of which the following is a specification.

My invention is an improved reversible plow adapted to be used both on level land and on hillsides; and it consists in the peculiar construction and combination of devices hereinafter fully set forth, and pointed out in the claim.

In the accompanying drawings, Figure 1 is a top plan view of a reversible plow embodying my improvements. Fig. 2 is a detail perspective view of the double plowshares, standards,connecting landside-plate,and revoluble reversing-plate. Fig. 3 is a side elevation of my improved reversible plow.

The beam 1 and handles 2 are of the usual construction. In the under side of the beam, near the rear end thereof, is countersunk a bearing-plate 3, which is of suitable length and corresponds in width with that of the beam. A vertical opening in the center of said bearing-plate coincides with the vertical opening in the plow-beam, and a pivotal bolt 4. extends through said openings and has a head on its lower end. On the lower portion of this pivotal bolt turns a circular plate 5 of suitable diameter and thickness, the diameter of said plate 5 corresponding with the length of the bearing-plate 3, and said plate 5 is provided on opposite sides with open notches 6. A similar-notch 7 is made in the rear end of the bearing-plate 3, and the said notches 6 alternately register with said notch 7 when the plow is reversed. A pair of standards 8, which curve in opposite directionsand diverge downward from each other, depend from the lower side of the reversingplate 5' and are disposed in line with the openings 6 of said reversing-plate. A landside-plate 9, which connects the lower portions of the said standards, is disposed on one side of the same and bolted thereto, as at 10. Plow-points 11 are also secured on the lower ends of the standards by bolts, as at 12, and on said points are the removable separable moldboards 13, which extend beyond the sides of the standards opposite the landside-plate 9.

The landside edges of said moldboards bear against the faces of the standards 8, as shown. It will be understood from the foregoing and by reference to the drawings that the landside-plate, which is attached to the standards on one side thereof and connects the said standards together, serves to brace and strengthen the standards and to convey the stress from one standard to the other when the plow is in operation, so that the stress is distributed to both of the standards, on one side thereof, by said landside-plat-e. It will be observed by reference to the drawings that the inner ends of the respective moldboards which are disposed on the side of the standards opposite the landside-plate come in contact with each other, so that the stress is also distributed between the two standards by the said moldboard on the sides of the standards opposite the landside-plate, and hence torsional stress on the standards is obviated, and the reversible plows, while admitting of being lightly constructed, are of maximum strength and durability.

The reversing-plate 5 bears below the bearing-plate 3 and permits the beam to be turned on the bolt 4 when the end of the furrow is reached, hence obviating the necessity of turning the plowshares, which is an advantage even on level lands, as it reduces the labor of the plowman. Plates 14 are bolted to the lower side of the beam 1 in front and rear of the reversing-plate 5 and are provided with lugs 15, which bear on the lower side of said reversing-plate, as shown. 'By means of the bolt 16 to secure the said plates 14 to the beam said plates may be tightened against the under side of the reversing-plate 5 when it becomes necessary to compensate for wear of said reversing-plate and to prevent the plows from rocking under the beam. Avertically-movable locking-bolt 17 operates in a vertical opening in the beam at a suitable distance in rear of the pivotal bolt l, and the lower portion of said bolt passes through the opening 7 in the rear end of the bearing-plate in one of the notches 6 of the reversing-plate and in a notch 18 in the front side of the lug 15 of the rearmost plate 14 and serves to lock the beam to the reversing-plate, as will be understood. A lever 19, fulcrumed on a support 20 on the handles 2, is connected to the locking-bolt 17 and is adapted to be used for the purpose of tripping said bolt and releasing the reversing-plate, so that the beam may be turned thereon. A spring 21, which bears under said lever 19, automatically engages said locking-bolt with the reversingplate when the beam is turned.

It will be observed by reference to the drawin gs that the locking-bolt 17, in coaction with the notched lug-plate 14 and the notched bearing-plate 3, serves as a brace to strengthen the connection between the reversing-plate and the beam.

Having thus described my invention, I claim- In a reversible plow, the combination with a pair of standards carrying a landside-plate, plow-points and moldboards at their lower extremities, and at their upper extremities a bearing-plate having oppositely-disposed notches alining with the standards, of a beam carrying a wear-plate on its under side against which the bearing-plate rests, and having notches alining with those of the wear-plate, an assembling-bolt passed through the two plates and the beam, wear take-up plates secured to the beam and engaging the under side of the bearing-plate, one of the take-up plates being provided with a notch alining with those in the bearing and wear plates, a springpressed latch passing through the beam and adapted to engage, simultaneously, the alined notches of the three plates, and means for operating the latch, substantially as and for the purpose specified.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

THOMAS ANDREW JACKSON.

Witnesses:

PERCY NEWFRILLE, J. E. YARBROUGH.

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