US352017A - Harrow - Google Patents

Description

(No Model.)

1 W. V. WALKER.

HARROW. No. 352,017. 7 Patented NOV. 2, 1886.

WITNESSES v Vi, 0C,

UNITED STATES PATENT OFFICE.

WILLIAM V. WALKER, OF MORAVIA, NEW YORK.

HARROW.

SPECIFICATION forming part of Letters Patent No. 352,017,6ated November 2, 1886.

Application filed May 20, 1886. Serial No. 202,787.

To all whom it may concern:

Be it known that I, WILLIAM V. WALKER, a citizen of the United States, and a resident of Moravia, in the county of Cayuga and State of New York, have invented certainnew and useful Improvements in Harrows; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being'had to the accompanying drawings, which form a part of this specification, and in which-- Figure 1 is a top view of my improved harrow. Fig. 2 is a side elevation of the same. Fig. 3 is a side elevation of the axle. Fig. 4. is a partially-sectionized view of tilting device. Fig. 5 is a vertical cross-section of the same on line a: w, and Fig. 6'is a partially-'sectionized view of a modification of said device.

Like letters of reference indicate like parts in the six figures.

My invention relates to wheel-barrows; and it consists in the improved construction and combination of parts, as will be hereinafter fully described, and set forth in the claims.

Referring to the accompanying drawings, A

represents the axle, the middle portion ofwhich is raised above the axis of the wheels B by means of brackets, a, which have the spindles b projecting from their lower ends.

0 and D represent cross-rails of the harrowframe; E, the middle longitudinal rail; F, rails secured to the under side of and at an angle'to said cross-rails, two being secured outside of the wheels; G, spring-teeth secured to said rails; H, the bifurcated pole secured to the upper side of said axle; I, braces from said pole to the axle; J, links connected to the front cross-rail and to the axle; K, a plate having on one edge an upwardly-projecting flange, L, formed into a rack-bar, and on the other edge a narrower flange, M, between the upper corners of which and the flange L are pivoted the tilting levers N and O. The main lever N has a claw-ended arm, 0, projecting to the front, and another arm, d, projecting in the opposite direction, thus forming with the upright portion an inverted-T-shaped lever.

Near the upper end of the lever is attached a spring-detent, e, the lower end of which is hook holds to a portion of a log-chain.

(No model.)

bent at right angles to the main part and works in a hole in the lever. An L-shaped lug, f, is formed to project under and against the outside of the rack-bar. This bent portion of the detent is for engaging the notches of the rack-bar, from which it is disengaged by pressing it toward the lever. The lever O has one arm, 9, provided with a claw at its end. The other arm, h, projects in the opposite direction, and is linked to the arm 01 of the main lever. This link may be done away with by formingsector-gears upon the adjacent arms of said levers, as seen in Fig. 6.

To the middle rail of the harrow are attached chains P, which are also adj ustably secured in the claws of the tilting levers. These seize and hold said chains in the same manner as a graby tilting the main lever forward the harrow is lowered into operative position, and by tilting it backward the harrow-teeth may be raised free from the ground, the elevated position of the middle portion of the axle rendering such an operation possible even with a harrow of long spring-teeth.

The seat Q is attached to the axle. The whiffletrees are attached .to the barrow-frame. The links J are each connected by a staple to the front cross-rail of the harrow, and have their other ends pivoted upon the spindlesat the inner ends of the hubs, thus transferring the draft to the sulky part of the mechanism, and at the same time allowing, together with the chain-connections, the harrow to adapt itself to the ground with perfect ease.

The S-shaped teeth are made of fiat metal strips and secured to the rails so as to be in the same plane therewith, thus causing them to make a sliding out to the front as the harrow advances.

The rear cross-rail may be prolonged and the rails at the outside of the wheels set farther apart if it is desired to make the harrow cover more ground.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States- 1. In a wheel-harrow, the combinatiomwith the sulky and the harrow, of a tilting device consisting of an inverted-Tshaped lever hav ing a claw formed upon one arm, another lever connected thereto and having a claw formed upon one of its arms, a detent attached to the T-shaped lover, a suitable support for said levers, a rack-bar upon said support, and chains for connecting the harrow to said levers.

2. In a wheel-barrow, the combination, with the sulky and the burrow, of a plate with flanges upon its sides, a rack-bar formed upon one flange, levers pivoted between said flanges, one a T-shaped lever having one arm provided with a claw, the opposite one with a sectorgear, and the main one with an L-shaped lug,

and a spring-detent, bent at its lower end, to work in a hole in said lever, the other lever having a claw at one end and a sector-gear at the other, and chains connecting said levers to the harrow.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

\VILLIAM V. \VALKE \Vitnesses:

TERRY EVERSON, WILL FITTs.

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