US642026A - Clevis. - Google Patents

Description

No. 642.026. Patented Jan. 23, I900. J. R. WEATHERSBY.

CLEVlS.

(Application filed Oct lB. 1899.)

No Model.)

mmnboz Milmeoam JOHN It. NEATHERSBY, OF SPRINGHOPE, NORTH CAROLINA.

CLEVIS.

SPECIFICATION forming part of Letters Patent No. 642,026, dated January 23, 1900.

Application filed October 18, 1899- Serial No. 734,010. (No model.)

To all whom it may concern:

Be it known that 1, JOHN R. WEATHERSBY, a citizen of the United States,residing at Spring hope,in the county of Nash and State of North Carolina, have invented new and useful Improvements in Clevises, of which the following is a specification.

My invention relates to improvements in clevises, and pertains to a clevis of the construction hereinafter shown and described.

The object of my invention is to provide a clevis of the form hereinafter shown with a detachable draft bearing-plate, whereby the plate can be removed when it becomes worn and anew one substituted therefor, thus making the life of the clevis practically limitless and providing for the renewal of a worn-out draft bearing-plate at a comparatively small expense over the providing of an entire new clevis of the ordinary form and construction.

Another object of my invention is to provide the bearing-pins of the clevis with wrenchjaws for use in connection with a plow or other implement to which the clevis may be attached.

In the accompanying drawings,Figure l is a perspective view of a clevis embodying my invention, the same being shown attached to the outer end of a plow-beam. Fig. 2 is a longitudinal central sectional view through the clevis. Fig. 3 is a vertical transverse sectional View through the clevis upon the dotted line 3 3 of Fig. 1. Fig. i is a detached view of the detachable draft bearing-plate.

Referring now to the drawings, A is the beam of a plow or other implement to which my improved clevis is attached.

My clevis consists of a U-shaped frame A, having at the inner side of the longitudinal portion of the U-shaped frame the longitudinally-extending groove a, which groove extends from end to end of the said parallel portion of the frame A.

A depending and slidable draft bearingplate B is provided at its ends with the tongues 1), adapted to fit and slide within the grooves a, whereby the plate can be moved into the position shown in Fig. 1 for use and withdrawn from the frame A when it becomes worn out or for other reasons it is necessary or desirable to substitute another draft plate or block therefor.

For the purpose of enabling the adjusting of the draft ring or hook 0 upon the draft bearing plate or block 13 the said plate or block is provided at its inner edge with a series of notches 0, adapted to receive the ring or hook of the draft-plate, as is well understood by those skilled in the art.

My clevis is attached to the beam of an implement by means of the two bolts E and G, both of which pass through the beam, as illustrated in Fig. 1. The inner and larger bolt E has its upper end provided with the two projecting wrench-jaws e, which are adapted to be used as a wrench when found neces sary and avoid the necessity of the operator carrying with him a separate wrench. The outer bolt G has its upper end also provided with a wrench-jaw g of a different size from the jaws e and which is also adapted to be used when occasion arises.

When it is desired'to change the adjustment of the draft hook or ring, the outer pin E is removed and the U-shaped frame A swung around to one side of the beam, which will permit the adjustment of the link or hook into either of the desired notches in the draft block or plate B.

WVhen the draft block or plate becomes worn, it can be readily removed by sliding it out of the frame A and a new block inserted in its place at a very small cost, whereas if a clevis having the draft block or plate 13 made integral therewith becomes worn out the clevis must itself be thrown away and a new clevis substituted therefor at a cost considerably greater than the cost of supplying another draft-block in the manner herein shown and described.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A clevis comprising a U-shaped frame, and a draft-block having rearwardly-extending notches, said draft-block separate from and detachably fitting within the outer closed end of the frame, substantially as described.

2. A clevis comprising a U-shaped frame, the parallel arms thereof having longitudinal grooves at their inner sides, and a separate draft-block having at its ends tongues for engagement with the said grooves, whereby the blocks can be removed or placed within the U-shaped' frame, substantially as described.

3. A clevis comprising a U-shaped frame, a separate draft-block fitting within the closed end of the frame and longitudinally movable upon and from the arms of the U-shaped frame substantially as described.

4. A clevis comprising a U-shaped frame, and a draft-block fitting within the closed end of the frame and separate therefrom, the ends of the draft-block and the arms of the frame having a slidable connection, whereby the draft-block may be removed from the JOHN R. WEATHERSBY.

Witnesses:

JOSEPH J. WILLIAMS, J NO. N. BERGERQN.

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