US438536A

US438536A - Plow-clevis

Info

Publication number: US438536A
Authority: US
Publication date: 1890-10-14
Anticipated expiration: 1907-10-14

Description

P. M. POSS.

PLOW GLEVIS.

(No Model.)

No. 438,536. Patented Oct. 14, 1890.

Witnesses:

UNITED STATES PATENT OFFICE.

FRED. M. FOSS, OF ROCHESTER, ILLINOIS.

PLOW-CLEVIS.

SPECIFICATION forming part of Letters Patent No. 438,536, dated October 14, 1890.

Application filed June 27, 1890- Sen'al No. 356,952. (No model.)

To all whom it may concern.-

Be it known that I, FRED. M. FOSS, of Rochester, in the county of Sangamon and State of Illinois, have invented certain new and useful Improvements in Plow Clevises; and I do hereby declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being hadto the accompanying drawings,which form part of this specification.

My invention relates to an improvement in plow-elevises; and it consists in the combination and arrangement of parts which will be fully described hereinafter.

The object of my invention is to provide a clevis by means of which the draft can be applied to either side of the end of the beam for the purpose of making the plow take more or less land, or raised or lowered so as to cause the plow to run shallow or deep, as may be preferred.

Figure 1 is a side elevation of a clevis, which embodies my invention. Fig. 2 is a plan view of the same. Fig. 3 is a front view.

A represents the front end of the plow-beam, and B a casting,which is secured rigidly thereto, and which extends horizontally forward. The front edge of this castingB is curved so as to allow the clevis to swing freely around, and is provided with a series of notches O, in which the spring-actuated catch D, pivoted upon the clevis, catches for the purpose of holding the clevis in any desired relation to the front end of the plow-beam.

Pivoted to the front end of the plow-beam A, by means of the pin or bolt F, is the clevis G, which has a sufficient opening in its rear end to receive the front end of the beam A and the casting l3 and to allow the catch D to be pivoted therein. The upper end of the catch D projects through a slot in the clevis G sufficiently far to allow it to be readily operated, and this catch is kept forced backward, so as to snap into the notches O in the casting B by the spring II, which is rigidly secured at one end to the top edge of the clevis.

By means of this pivoted clevis, the springcatch D, and the notched castingB the clevis can be turned so as to stand at any desired angle to the front of the plow-beam, and thus cause the plow to cut a narrow or a wide furrow, as may be desired.

Through the front end of the clevis G is made a vertical opening of any suitableleugth, and in the front edge of this opening are made a number of notches I, in which the ring of the chain or singletree catches. Pivoted to the clevis G at the bottom of this opening is the locking device J, which consists of a shouldered bar just sufficiently long to fit inside of the opening, and thus hold the ring or other singletree attachment in the notch I, in which it is adjusted. The upper end of this locking device J projects above the top of the clevis G, and is provided with a springcatch O for holding the locking device in a closed position. Before the height of the singletree is adjusted this locking device J must be opened, and then after the ring or other attachment has been adjusted this locking device J is closed so as to prevent the part from becoming displaced.

By having a series of notches I the depth to which the plow shall run is adjusted.

This clevis is adapted to be used in subsoil plowing.

Having thus described my invention, I

FRED. M. FOSS.

\Vitnesses:

N. L. BAXTER, CHAS. Foss.