US252667A

US252667A - Draft-equalizer

Info

Publication number: US252667A
Authority: US
Publication date: 1882-01-24
Anticipated expiration: 1899-01-24

Description

(No Model.)

J. HORRIGAN.

DRAFT EQUALIZER.

No. 252,667. Patented Jan. 24,1882.

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Usrrran STATES PATENT Orrrca.

JEREMIAH HORRIGAN, OF SOLOMON, IOWA.

DRAFT-EQUALIZERI.

SPECIFICATION forming part of Letters Patent No. 252,667, dated January 24, 1882.

Application filed September 8, 1881.

To all whom zt may concern:

Be it known that I, JEREMIAH HORRIGAN, of Solomon, Mills county, Iowa, have invented a new and useful Improvement in Equalizers, of which the following is the specification, reference being had to the accompanying drawings, in which similar letters of reference indicate like parts in both figures.

My invention relates to three-horse equalizers; and its object is to provide an equalizer which shall belight, simple of construction, and easily handled for use.

I'attain the objects of my invention by the following method, reference being had to the drawings.

Figure 1 is a top view, and Fig. 2 edge view.

In the drawings, A represents the equalizerbeam or triple-tree, preferably about seven feet leng, and tapering toward each end to reduce the weight, and maybe about two by four inches in the middle.

On the rear side of the beam A, and at a distance of one-third its entire length from each end, are placed the angle or bell-crank levers B B, each consisting of a long arm, a, and a short arm, I), which may be at right angles to each other. A brace, 0, may eonnect the extremities of the arms a and b in cases where extra strength is required. The bell-cranks B B areinserted in mortised notches in the beam A, and maybe prevented from falling outby the pins 0, inserted in the angles formed by the arms. The bell-crank levers B B are placed with their long arms toward each a backother, and may be constructed of flat iron.

(No model.)

From the extremities of the arms a and b of the levers B B extend directly forward th rough the mortises n and m in the beam A the rods or chains F GE I. Attached to the extremities of the short arms I) of the levers B B are the chainsO O, extendingoutward andaround the sheavesD D in the extremities of the beam A and forward in the same direction with the rods or chains F G H1. the chains 0 O and of the rods F G H I, terminate in hooks e fg h i j, to which the traces of the horses are hitched direclly, the middle horse being hitched to the hooks g h and the side horses to the hooks efand ij, and since the middle horse exerts one-halt'its strengl h on each of thelong'arms ot the levers B it will be equaled by the efi'orts ot' the side horses on the short arms of the levers.

The chains 0 O maybe prevented from falling from the sheaves D D by the plates 6 S passing over the ends of the beam A at a distance from the sheaves not to interfere with the chains freely moving.

What I claim is In a three-horse equalizer, the combination of the triple-tree A, provided with the sheaves D D, the angle-levers B B, consisting ol" the long arms a and theshort arms b, and the rods or chains O O F G H I, all constructed and combined to operate substantially as shown, and for the purposes described.

JEREMIAH HORRlGAN.

Witnesses:

L. BENTLEY, JOHN H. BENTLEY.

The extremities of 5