US385216A - thompson - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. J. THOMPSON & S. B. SEGRIST.

- PLOW.

No. 385,216. Patented June 26. 1888.

Washing c,

iJ'NiTED STATES PATENT EFrcE.

JOHN THOMPSON AND SAMUEL B. SEORIST, OF BELOIT, WISCONSIN; SAID SEORIST ASSIGNOR TO JOHN THOMPSON 8t SONS, (LIMITED,) OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 385,216, dated June 26, 1888.

Application filed September 26, 1887. Serial No. 250,656.

To aZZ whom it may concern:

Be it known that we, J OHN THoMrsoN and SAMUEL B. SEoRrsT, of Beloit, in the county of Rock and State of tViseonsin, have invented certain new and useful Improvements in Plows,

of which the following is a full, clear, and ex act description, reference being had to the accompanying drawings.

Our invention relates to sulky-plows, in whichthe plow is raised or lowered within the frame-work; and the object is to provide means for securing a colter to the plow-beam with its cutting-edge just over the point of the share, and so that the share may be lifted without obstruction to the simultaneous lifting of the colter.

To this end it consists in the construction and combinations of parts herein fully described, and pointed out definitely in the claims.

In the drawings, Figure l is a perspective View of a sulky-plow fitted with our improvements. Fig. 2 is a top view of a portion of the plow-beam and connections between it and the eoltershank. Fig. 8 is a sectional view on the line 3 3 in Fig. 2, and Fig. 4 is a detail of one of the colter-clasps.

Referring to the parts by letter, A represents the plow-beam, and B a bar connecting the two sides of the frame work, having an arch, B, near the center thereof.

0 represents the plowshare, which is socured to the rear end of the plow-beam A so that its point lies substantially in the same vertical plane as the arch B. This arch is provided with a wide vertical slot, 1), formed by the arms I) b. The plow-beam lies in said slot and moves up and down in it as the beam is raised and lowered.

D represents a bowbrace, made, preferably, of the form shown, which is bolted to the plow-beam at such points thereon that its middle point shall lie within the slot I).

E represents the colter, and 0 its shank by which it is connected to the plow-beam. The coltershank is secured to the beam in such a position that the cutting-edge of the eolter shall be just above the plow-point, in which case the colter will be directly beneath the slot 1) in the arch. This makes the plow run much easier than when the colter is placed (No model.)

The best means which we have contem- 6o plated for securing the colter-shank e to the plow-beam is that illustrated in the drawings, wherein the front side of the bow-brace D is provided with the holes d d, one near the up per edge thereof and the other to one side and near the lower edge thereof.

G G represent clasps, which are provided each with a recess, which serve as sockets for the colter-shank. These clasps are provided also with the ears 9 g on diagonal corners. These clasps are secured to the brace D and to each other, with the shank c between them, by the U-shaped rod H, which passes through the holes (Z d and through holes in the ears g and the nuts h, which screw onto the end of said rod H.

When the plow is raised from the ground, the beam A moves up in the slot bin the arch, the braceD on the one side and the side of the beam on the other acting as guides in the slot to insure the vertical movement of the plow and beam. The upper part of the eolter also enters the slot 1), which has been widened for its reception, because its position relative to the plow would not permit it to enter a slot of the ordinary width to fit the plow-beam. The brace D is applied to the beam to act as a guide on one side of this widened slot, and, in this instance, also asa part of the instrumentalities through which the colter is attached to the beam.

The coltershank is attached to the bowbrace instead of to the beam directly, because it permits the attachment to be made in a simple and economical manner, and because thereby the cutting-edge of the colter may be secured at the proper place above the plow point without bending the shank e transversely. As an inferior construction the shank may be bolted directly to the beam A, with a suitable block between them to hold the colter at the proper point.

The improvements herein described maybe employed in connection with sulky-plows dif- 5 fering considerably from the precise form shown in the drawings, and changes in details may be made Without departing from the spirit of the invention. We do not therefore desire to be limited fuither than indicated by the to language of the claims.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a sulkyplow, the combination, with I5 a widened slotted arch in the frame-work, of

a plow-beam provided with a brace fitting within said slotted arch and guided thereby, and a colter secured to said plow-beam, and with its body underneath said slotted arch,

JOHN THOMPSON. SAMUEL B. SEORISI.

Witnesses:

Oscar: THOMPSON, OLAF FLACK.

Images