US314443A - Clevis - Google Patents

Description

(No Model.)

A. D. FORBES.

GLEVIS.

Patented Mar. 24, 1885.

(W/LT 172%272122: 6 232 m 927% imwzw UNITED STaTns PATENT OFFICE.

ALEXANDER D. FORBES, OF ROCKFORD, ILLINOIS.

CLEVIS.

SPECIFICATION forming part of Letters Paten't No. 314,4:43, dated March 24, 1885,

Application filed October 22, 185:3. (No model.)

To all whom it may concern.-

Be it known that I, ALEXANDER D. FORBES, a citizen of the United States, residing in the city of Rockford, in the county of Winnebago and State of Illinois, have invented new and useful Improvements in Olevises, of which the following is a specification.

This invention relates to that class of clevises employed mainlyin connection with plowbeams; and it consists in the peculiar construction, arrangement, and combination of parts, as more fully hereinafter set forth, and pointed out in the claim.

Figure 1 is an isometrical representation of a clevis embodying my invention. Fig. 2 is a side elevation.

In the figures, A represents the forward end portion of a plow-beam rectangular in section.

At B is represented that portion of a clevis usually known as beam-plates, having an arm, a, which extends in the lengthwise direction of the plow-beam rearward, and are fixed thereto by means of screw-bolts b, passed transversely through the parts. The forward ends 0 of these plates extend forward of the beam, and theirprojecting ends are enlarged in depth, in this instance extending both above and below the beam. The extreme forward ends of these beam-plates are produced on an incline relatively with the lengthwise central l1orizontal axis of the plates and of the plow-beam, having a downward, forward, and an upward rearward inclination relatively therewith. These enlarged inclined forward ends of the beam-plates are provided with a series of holes, (1, in a line parallel with their forward inclined edges, and are designed to receive a pin or pins to connect a transverse clevis with the beam-plates.

At C is represented a transverse clevis having its front bar provided with a series of holes, 6, designed to receive the pin of a clevis employed to connect the evener with the transverse clevis. This transverse clevis is provided with ears h, extending rearward from its rear edge in position to engage the vertical sides of the beam-plates, and these cars are provided with a stud pin, is, projecting at right angles with the face of the ears. These stud-pins are of aproper size to enter the holes 61 in the beam-plates snugly, and their distance from the rear of the front bar of the clevis is such that when in place in the beamplates the rear edge of the transverse clevis will engage the inclined forward edge of the beam-plates, as clearly shown in the elevation in Fig. 2, and prevent the transverseclevis from descending below a horizontal position relatively with a transverse plane passing through the lengthwise central axis of the beam-plates, but in such a manner as to permit of a limited upward movement of the transverse clevis, as shown in the dotted lines in Fig. 2.

At a are represented cotters passed through holes bored in the stud-pins, which serve to hold the transverse clevis in connection with the beam-plates, and which when removed will permit the clevis to be placed in any of the holes in the beam plates to vary the runningdepth of the plow.

In this construction I have made the transverse clevis capable of being reversed, in which its long arm may be placed on either side, by which my improved clevis is capable of use on right or left hand plows.

I claim as my invention 7 The combination, with the side plates of a clevis having a series of coincident apertures, of a transverse clevis having rearwardly-extending arms provided with pins projecting at right angles therefrom in the same lateral direction, as and for the purposes set forth.

ALEXANDER D. FORBES.

\Vitnesses:

J noon BEHEL, A. O. BEHEL.

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