US485677A - Harrow - Google Patents

Description

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- N. ANDERSON.

HARROW.

No. 485,677. Patented Nov. 8, 1892.

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HARROW.

Patented Nov. 8, 1892.

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N. ANDERSON. HARROW.

Patented Nov. 8, 1892.

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NIELS ANDERSON, OF

SIOUX CITY, IOWA.

HARROW.

SPECIFICATION forming part of Letters Patent No. 485,677, dated November 8, 1892.

Application filed July 16, 1892.

Serial No. 440,214. (No model.)

To all whom it may concern:

Be it known that I, NinLs ANDERSON, a citizen of Denmark, residing at Sioux City, in the county of Woodbury and State of Iowa, have invented certain new and useful Improvements in Harrows; and I do declare the following to be 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, and to the let ters of reference marked thereon, which form a part of this specification.

My invention has reference to harrows. Its object is to provide a revolving riding-harrow that may readily be converted into an ordinary flat harrow. It is also intended to provide a harrow that will thoroughly pulverize the soil by means of teeth upon revolving shafts and which by the operation of a single lever maybe changed from a riding-harrow to a flat harrow. It is furnished with a cleaning device and with carrying-wheels by which it may be conveyed to any desired place while inoperative.

In my description reference is had to the following drawings, in which similar parts are designated by similar letters throughout the several views.

Figure 1 is a top view of my invention. Fig. 2 is a detail view of certain parts used in the flat harrow. Fig. 3 is an enlarged detail view of drive-wheel. Fig. 4 is an enlarged detail view of edge of drive-wheel, showing one of the springs on side of same. Fig. 5 is a view of my invention, in side elevation, resting on carrying-wheels. Fig. 6 is a view of parts converted into flat harrow'.

Referring now to the illustrations, W IV are the carrying-wheels, borne upon shaft W, which may be raised and lowered by crankrod K, crank K, thread I) on crank-rod, thread I) on top of box B, as shown in Fig. 5. Box b Works up and down on flange 1) within box B and is loosely secured to the lower end of crank-rod K. By this construction the entire Working parts may be lifted from the ground and the barrow conveyed inoperative.

F is the frame, supporting circular platform P, bearing cross-slats P P P, which bear the seat S and protect the operator from'the revolving shafts and teeth. A A are the drivewheels, capable of being set in motion by contact with the ground, located inside the carrying-wheels borne upon shaft A These wheels have spokes A on the inside, as shown in Fig. 3, with a solid outside surface A S S are movable caps cut out of the solid portion of Wheel, dovetailed and hinged at S into drive-Wheel and having on the under sides catches a c.

S S, together with o, constitute springs, and c a notch on the under side and end of S S, by means of which S S are held closed on circumference of drive-wheel. The revolving harrow-shafts are designated by Z Z, carrying teethtt, held in position by clasps t t. Each of the shafts are clasped loosely near the end by bands Z Z and are connected by chains 1 F.

0. 0. are rounded extensions of Z Z, supplied with cogged wheels a a. a a work through and upon openings a a in drive-wheels, as shown in Fig. 5.

a designates a semicircular bar with half of its surface cogged to receive cogged wheels a a. This bar is secured to frame F and to the inside of frame B, which supports box B. When in use as a circular harrow, drivewheels carrying cogged wheels or a and shafts Z Z rotate from the front backward, cogged wheelsa a come into conjunction with bar a and a revolving motion is communicated to shafts Z I just at the time when teeth 25 t are in the ground. In this manner the ground is thoroughly stirred and pulverized.

L is a lever with catch 0 and spring 0, e a notched bearing on frame F to secure lever in place. By means of shaft L firmly attached to lever L, a rotary motion may be communicated to a wheel L under frame F, to which on opposite sides are attached leverarms g and g, extending in opposite directions from side to side, which arehinged to square arms 9 which in turn are hinged to other lever-arms g g and. g g, which are loosely jointed with trip-levers T T secured by bolts T T to frame F, so as to permit a free movement of trip levers.

T T are small wheels on end of trip-levers, with which trip-levers may easily pass springs S S. It will be seen by reference to Figs. 1 and 5 that when lever L is forced toward the horses trip-levers will force each spring S S away from circumferences of drive-wheel, catches a c are in succession released, shafts Z Z force open caps S S and fall to the ground. The next revolution of the wheels A A closes caps s s by their coming in contact with the ground. Lever L having accom plished its purpose, heavyspring 8 brings said lever and trips '1 T back to their original position. In this mannerall the harrowshafts assume the position shown in Fig. 6, and may be converted into a fiat harrow by the use of the parts now following.

In Figs. 2 and 6, D D indicate long side bars used for the purpose of connecting harrow-shafts Z Z. r is a rod connecting bars D D, passing through openings r W. D D are flanges secured on under side of side bars to clasp square ends of barrow-shafts. (Z (Z are blocks to fill space between side bars and rounded ends of shafts a a as is a concave surface on under side of blocks (Zd to fit curved ends of shafts 0, a". 0" 9" are rods passing through under ends of flanges D D to hold bars D D in position on shafts Z Z. D is a bar uniting front ends of bars D D, to the middle of which an eye 0 is secured for the attachment of the donbletrees.

A cleaning device consisting of teethp p is attached to frame F. When shafts Z Zrevolve, teeth ftp-ass through teeth pp and are cleared of cornstalks and other debris.

I am aware that harrows similar to mine in certain particulars have been constructed.

What I believe to be new, and desire to secureby Letters Patent, is-

1. In a revolving riding-harrow, drive-wheels A A, caps S S, with catch 0 on the under side thereof, forming a part'of said wheels and secured by hinge on the circumference thereof, springs S S and o, holding caps in place, lever L, lever-arms g g g g and g g g g, connecting lever L with trips T T by means of which springs, lever, and trips caps S S may be opened, barrow-shafts Z Z, jonrnaled through drive-wheels by means of rounded shafts a a cogged wheels to a on the ends of said shafts, and semicircular bars a to receive wheels at a, by which a circular motion may be communicated to shafts Z Z, substantially as set forth.

2. In a revolving riding-harrow, drive-wheels AA, harrow-shaftsZ Z, journaled through said wheels and supported in position by caps S S, which form a part of drive-Wheels and are secured by hinges on the circumference of same, trips T T which act upon springs S S and r), operated by means of lever L, and lever-arms g g g g and g g 9 releasing caps S S, together with shafts Z Z, in succession, by which shafts ZZ may form part of and be converted into a flat harrow, as specified.

In testimony whereof I affix m y signature in presence of two Witnesses.

NIELS ANDERSON.

Witnesses:

O. MIDDLEKAUFF, RAsMUs HANSON RASMUSON.

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