US392530A

US392530A - Draft-equalizer

Info

Publication number: US392530A
Authority: US
Publication date: 1888-11-06
Anticipated expiration: 1905-11-06

Description

(No Model.)

I. N. WOODLE.

, DRAFT EQUALIZER. No. 392,530. Patented Nov. 6, 1888.

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UNITED STATES PATENT ()rrrcn.

ISAAC N. IVOODLE, OF ALBANY, OREGON.

DRAFT-EQUALIZER.

SPECIFICATION forming part of Letters Patent No. 392,530, dated November 6, 1888.

Application filed July 19, 1888. Serial No. 280,381. (No model.)

To all whom it may concern:

Be it known that I, IsAAo N. WooDLn, of the city of Albany, in the county of Linn and State of Oregon,have invented certain new and useful Improvements in Draft-Equalizers; and .11 do hereby declare that the followingis a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification.

Figure 1 is a plan view of my improved draft-equalizer. Figs. 2 and 3 are details.

This invention is an improvement in draft' equalizers; and it has for its objects to both equalize the draft and to transfer strain from the ends of the doubletree to the tongue; and it consists in the novel construction and arrangement of parts hereinafter described, illustrated in the drawings, and particularly specified in the claims hereto appended.

In the drawings, A represents the tongue of a vehicle, braced to axle A by rods a a, as shown; B, the doubletree, pivoted thereon, as usual; and O O, the singletrees, pivotally attached to the ends of the doubletree by bolts D D. In rear of the pivot of doubletree B is secured to the tongue a loop, E, and F is a horizontal friction-roller secured within said loop at the side next the doubletree.

G is a metal bar bent laterally on the arc of a circle, as shown, and playing longitudinally through loop E in the rear of roller F, its concave edge bearing against said roller.

9 g are shoulders or enlargements formed at the ends of bar G, and limit the movement of said bar through the loop.

H H are slightly curved rods connected to the ends of bar G and extending forward to the ends of the doubletree, Where they are horizontally bifurcated. The arms h h of the bifurcated ends embrace the double and single trees, and are perforated for the passage of the retaining-bolts D, as shown.

It will be seen that strain on one end of the doubletree is transferred directly through rods H and bar G to the other end, thereby equal izing the draft, the barGmoving easily against the roller a; and, further, that the bifurcated ends of the rods H, receiving bolts D, transfer a great part of the draftstrain direct to the rods Hand bar G, and the latter shift the strain upon the fastenings of strap E to the tongue. Shoulders g of bar G serve as stops to prevent the doubletree and rods being shifted too far. Rods H may be made integral with bars G, if desired.

Having described myinvention, I claim- 1. In a draft-equalizer, the combination of the doubletree and singletrees with the movable curved bar G, playing through a strap, E, on the shaft, and having stop-shoulders on its ends, and rods H H, connected, respectively, to the ends of bar G and the trees, all

constructed and arranged substantially as specified.

2. The combination of the tongue and donbletree with the strap E, roller F, the curved and shouldered bar G, playing through said strap, bearing against said roller, and the rods connecting the ends of said bar with the doubletree, all constructed and arranged substantially as and for the purpose described.

3. The combination of the tongue, doubletree pivoted thereon, and the singletrees, with the draft equalizing devices, comprising a curved and shouldered bar, G, strap E, roller F, and rods H H, attached to bar G and having bifurcated ends it h, embracing the double tree and singletrees, and connected thereto by bolts D, substantially as and for the purpose described.

In testimony thatI claim the foregoing as my own I affix my signature in presence of wit nesses.

I. N. VVOODLE.

Witnesses:

L. H. MoN'rANYE, GEO. W. GRAY, G. B. MONTANYE.