US427412A - Harrow - Google Patents

Description

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(No Model.)

Patented May 6, 1890.

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H. H. FRAZIER.

' HARROW.

Pzfigl May ,6, 1890.

UNITE STATES HARMON H. FRAZIER, OF ALLIANCE, NEBRASKA.

HARROW.

SPECIFICATION forming part of Letters Patent No. 427,412, dated May 6, 1890.

Application filed May 17, 1889. Serial No. 311,108. (No model.)

To aZZ whom it may concern;

Be it known that I, HARMON H. FRAZIER, a citizen of the United States, residing at Alliance, in the county of Box Butte and State of Nebraska, have invented a new and useful Harrow, of which the following is a specificatiou.

This inventionrelates to thatclass of harrows which comprise a series of transverse parallel toothed bars mounted pivotally between two longitudinal bars or frame-pieces; and it has for its object to provide a device'ot' this class which shall possess superior acb-antages in point of simplicity, durability, and general efficiency, in which the barrow-bars may be adjusted in such a manner as to place the teeth at different angles or degrees of inclination, and in which several sections composing the harrow may be conveniently coupled together or disconnected, as occasion may require.

With these ends in View the invention consists in the improved construction and arrangement of parts, which will be hereinafter fully described, and particularly pointed out in the claims.

In the drawings, Figure 1 is a perspective View of a harrow equipped with my improvements. Fig. 2 is a side view of the same. Fig. 3 is a side View showing the barrow-bars in a differentposition. Fig. 4 is a perspective View on an enlarged scale of one of the caps used at the ends of the harrow-bars. Fig. 5 is avertical transverse sectional view taken on the line 00 so in Fig. 2. Fig. 6 is a detail View of one of the longitudinal side bars of the harrow. Fig. 7 is a detail view illustrating a modification.

The same letters refer to the same parts in all the figures.

A A designate the transverse bars ofmy improved harrow, which are provided with teeth B, of ordinary construct-ion, extending vertically through the said bars. The latter are provided at their ends with caps O,constructed, preferably, of cast-iron, and fitting closely upon the outer ends of said barrow-bars, upon which they may be secured by means of the outer teeth 13, which pass through perforations E in the upper and lower sides of said caps. The latter are provided on' their outer The latter washers K may be interposed between the said pins or keys and the bars G. I The caps C are provided at the corners of their upper outer edges with laterally-extending studs L and M, the former of which, being located at the front corners of said caps, are somewhat wider than the studs M, which are located at their rear corners, the relative position of said studs being such that when the studs L are in contact with the upper edges of the longitudinal bars G the teeth 13 extending through the harrow-bars shall be in a vertical position, while when the barrow-bars are tilted so as to bring the studs M in contact with the upper edges of said bars the harrow-teeth shall assume a correspondinglyinclined position. The studs L M are provided with notches N in their under sides, to receive the upper edges of the longitudinal bars G. It will be seen that, owing to this construction and arrangement of parts, when draft is applied to the front end of the harrow, the resistance of the teeth to the ground will cause the notches L at the front corners of the caps C to engage the upper edges of the longitudinal bars G, thereby maintaining the harrow-teeth in a vertical position and causing them to enter deeply into the soil. hen draft is applied to the opposite end of the harrow, the position will be reversed, and the studs M will engage the longitudinal bars G, causing the barrow-teeth to assume an inclined position and to drag lightly over the soil. The perforations in the longitudinal bars G are placed nearer the upper than the. lower edges of said bars, as will be plainly seen in Fig. 6 of the drawings. By removing the said side bars and reversing them, the sides of said bars which are then brought uppermost will fit closely in the notches N of the studs L M, and the harrow-bars will thus be held securely in a somewhat inclined position without being able to vibrate. When the harrow-bars are in this position and draft is applied to the front end, the harrow-tecth will act in the same manner as cultivatorteeth, being forwardly inclined, when they will cut deeply into the soil, while when draft applied to the opposite end the teeth will be rearwardly inclined and will drag lightly over the soil.-

It will be seen from the foregoing that by my improved construction the harrow-teeth may be permitted to assume four different positions, suitable for various kinds of work.

In Fig. 7 of the drawings Ihave illustrated a modification of my invention, whereby the transverse harrow-bars A may be flexibly connected. The said modification consists in substituting for the longitudinal side bars G short side pieces G to which the harrow-bars are connected pivotally in the same manner as before, and which are provided at their front ends with perforations P, havingradially-extending slots Q, and at their rear ends with laterally-extending studs R, provided with flanges S, adapted to register with the slots Q of the perforations P of the next adjoining short bars G when placed at right angles to each other. \Vhen the short bars G have been thus connected and are allowedto as? sume a horizontal position, the flanges S upon .the studs R will prevent the parts from being disconnected, and will serve to couple or connect the harrow-bars flexibly in a safe and convenient manner.

From the foregoing description, taken in connection with the drawings hereto annexed, the operation and advantages of my invention will be readily understood.

The construction is exceedingly simple and durable, and admits of the teeth being adjusted to any desired position for operation in a very rapid and convenient manner.

When desired, two or more barrow-sections, each constructed as herein described, may be connected by a single draft-bar for operation by means of links L as shown in Fig. 1 of the drawings.

Having thus described my invention, I claim 1. In a harrow, the combination of the transverse toothed bars, the caps mounted upon the ends of said bars and having laterallyextending pintles, the studs at the front and rear upper corners of said bars, said studs being of unequal Width, and the longitudinal frame-bars,to which the harrow-bars are pivotally connected by means of the pintles extending laterally from the caps at the ends thereof, substantially as set forth.

2. The combination, with the transverse toothed harrow-bars, of the caps having the notched studs at their upper front and rear corners, said studs being of unequal size, and thelongitudinal frame-bars composed of flexibly connected sections, to which the harrowbars are pivotally connected by the pintles extending laterally from the caps at the ends of said harrow-bars, substantially as set forth.

The combination of the transverse toothed harrow-bars, the caps provided with laterallyextending pintles and studs, and the longitudinal side bars, consisting of sections, each provided at one end with a perforation having a radially-extending slot and at the opposite end with a laterally-extending stud having a short flange on one side, substantially as herein set forth.

a. The transverse toothed harroW-bars provided at their ends with caps having laterally-extending pintles and studs,in combination with the longitudinal side bars having perforations to receive said pintles, said perforations being nearer the upper than the lower edges of said longitudinal bars, substantially as set forth.

5. The combination, with the transverse toothed harrow-bars having the caps provided with laterally-extending pintles and studs, of the reversible connecting-bars having perforations in which the said harroW-bars are pivotally mounted by the pintles extending laterally from the caps at the ends of said harrow-bars, said perforations being nearer the upper than the lower edges of said reversible connecting-bars, substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my own I have hereto aftixed my signature in presence of'two witnesses.

HARMON H. FRAZIER.

\Vitnesses:

J. S. PARADIS, C. E. CROSIER.

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