US959276A - Harrow. - Google Patents

Description

V W. D. WALTON.

HARROW.

APPLICATION FILED JULYS. 1909.

Patented May 24 UNITED STATES PATENT onnion.

'WILLI AM D..WALTON, OF COVIN'GTON, D ENNESSEE, ASSIGNOR F ONE-HALF TO -RICHARD B. SHOAF, 0F COVINGTON, TENNESSEE.

HARROXV.

To oll whohi 'itinay concem: I

Be it known that I, lVILLiAn D. \VALTON,

. a 'citizelrof the United States, residing at -Cov1ngto n, 1n the county;of Tipton and State of Tennessee, have invented certain ;.new and useful Improvements in Harrows;

, and-I doihe reb'y declare the following to be a. full, clear, and exactdeseription of the invention, such as will enahlepthers skilled in the art to which it-appertains to make and use the same. V

-My inventionrelates to harrows of the type Commonly called spike-tooth llflllUWb. One of the objects of the invention is to provide a harrow of this kind comprising a plurality of tooth carrying bars on which I the teeth are staggered, certain of said bars adapted to be operated independently from the" others, whereby the number of teeth ongaging the ground and the spacing beu'ieen said teeth may be 'VfllflQCl to suit the condit-ions of the Work to bedone.

I Another object is to provide novel means for supporting the burrow above the ground, when it is being transportedfrom one part of the field to another. which are automatically brought into position when the toothcarrying bars are. thrown out of operative position, and vice-versa.

Another object is to provide for the use of the harrow as a road drag.

Further objects of the invention will become apparent from the following description.

The invention consists in the. features of construction and combinations of partshereinafter described and specified in the claims.

In the accompanying drawingillustrating the preferred embodiment of my invention: Figure l is a plan viewot the barrow showing the tooth-carrying bars in inoperative position. Fig. 2 is a side view. Fig. 3 is a side view showing the tooth-carrying bars in operative position. Fig. at is a detailed sectional View showing how the supporting devices are'attached to the tooth-carrying gnaled in .said longitudinal strips 1. As

shown, I prefer to use five tooth-carrying bars which are preferably spaced equidistant Specification of Letters Patent. 'Patentfll'llgy' 24" emanation filed July 3,1909. 'seriaiaelfioasesi f vicc-versa.

apart. Thethree alternate bars 4,- ineluding i the end ones, are connected, as at..(3',' to an operating bar 7, which is in turn pivotally connected at 8 tea hand: lever 9 equipped with aJocking rodlO adapted to'co-tact with the notched segment- 1L for..- holding .-.sai'(l operating bar andtooth-carrying bars st ain their various positions. The other itwd tooth-carrying bars 5 are similarly connected at 12 to the operating bar 1 3 pivotedatto'the hand lever 15 also carrying a locking rod 16 adapted to engagethe notched 'seg ment 17. It will thusbescenthat the two tooth-carrying bars. 5- may' be separately operated from the three tootlr-carrying bars 4-. whereby either two, three -or all of said bars may be placed inoperative positi'oir'at the same time. The teeth 18 011 each of said bars -t are staggered with relation to those on the other two bars 4. The teeth 19 on each of the bars 5 are staggered with relation to those on the other bar 5, and the teeth on both of the bars 5 are also staggered with relation to those on all of the bars 4. By 7 reason of this arrangement or spacing of the' l-look-shaped rods 20 are attached to each of the end tooth-carrying bars 4 near the extremities thereof. The outer ends of these hooked rods are adapted to rest on the ground and support the harrowout of ooptact therewith 'when the bars 4 are arranged in inoperati ve position. lVhen said bars4 are revolved to bring them into operative positien, the ends of said hook-shaped rods will he raised. as the teeth on said bars are lowered so that, .when the latter engage the ground, said hook-shaped rods will be raised out of contact therewith. Said hook-shaped rods are thus automatically brought; into operative. position as the teeth on the bars 4 are. brought into inoperative position and while the hooked-shaped rods may be made in separate pieces, I prefer to form them integral with the teeth 18* nearest 'the extremities of the efid bars 4 by extending said teeth through the bars, as illustrated in Fi 4.

The whi etree or equalizer 21 is de- 'tacliably connected to hooks 220a the front ends of the outside longitudinal strips 'le The harrow may. be used as a goad drag byv 110 various degrees of fineness as may be required.-

I connecting the whiffletrec to the hooks 23 secured to one side of the frame, as illustrated in dotted lines in Fig. 1. When drawn along in this way, the tooth-carrying bars will run parallelto the line of progression, and the strips 1 will act as scrapers or drag boards.

It will be noted that when the toothcarrying bars are in inoperative position, their teeth lie within the .plane of the strip 1 so that when the ha rrow is used as a road drag, said teeth will not interfere with said strips engaging the surface of the road.- The bent supporting rods 20 are adapted to turn in their hearings in the end bars 4, and may he turned up out of 'thevway, as shown in dotted lines in Fig. 2, when the harrow is used as a road drag.

' I claim:

1. In a harrow, the combination, with tooth-carrying bars, and means to actuate said bars to bring their teeth into or out of operative position, of hook-shaped rods carried by said bars for'supporting theharrow above the ground whenthe teeth are in inoperative position, ed rods being mounted to'turn in their' said barsvwhereby they may be turned up out of the way when-'- desired for the purpose specified. a

2. Ina harrow, the-combination, with tooth-carryingbars, and means to actuate' saidbars to bring their teethinto or out of operative position, of hook-shaped rods carmed by said bars for supporting the harrow abovethe ground when the teeth are in inoperative position, said hook-shaped rods being made integral with the teeth located nearest the extremities of said bars.

In testimony whereof, I afiix my signature, in presence of two witnesses.

, WILLIAM D. WALTON Witnesses: Q

a J. L. RICHARDSON,

Emma LINDSEY.

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