US282223A - Harrow-tooth - Google Patents

Description

2 (No Model.)

' I. H. REINER.

HARROW TOOTH. 2 Nb. 282,223. Patented July 31; 1883.

wfrrmssns JINVENTOR ATTORNEYS;

I ll 1 UNITED STATES PATENT OFFICE.

ISAIAH H. REINER, oE LINE LEXINGTON, PENNSYLVANIA. 1

HARROW-V-TOOTH. I

SPECIFICATION formingpart of Letters Patent No. 282,223, datedJ'uly 31-, 1883.

Application filed October 21, 1882. (No model.)

Y To all whom it may concern.-

drawings, forming part of this specification, in

which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of my improved barrow-tooth. Fig. 2 is a front elevation. Fig. 3 is a side elevation of the tooth,together with the head for attaching the tooth to the harrow. Figs. 4 and 5 are details of the head in perspective view.

I makethe tooth with a straight shank, a, and a bent point, b, the bent portion being about one-third of the length of the tooth, more or less, and said bent portion being preferably in one of the diagonal planes of the tooth, with the corners of the other diagonal tapered to a point, asshown in Fig. 2. For cutting and pulverizing the ground, I propose to set the teeth of this form perpendicular to the barrow-frame c, as represented in Fig. 3, with the points forward, or, if pre ferred, the shanks may incline backward for settingthe points still. more oblique to the ground. Either way the shanks willnot clog with weeds, roots, andthe like, and the points will draw in and thoroughly cut and pulverize theground. For attaching such teeth so as to reverse them,readily to set them for smoothing the ground, I use an attaching-head, of

which d is a piece, having aflat top, e, to bear against the under side of the-harrow-frame c, and a bevel lower side, f, for the top face, 9, of another piece, h, in which the head i of the shank a of the tooth is fitted, said shankbeing fitted obliquely through piece 9, and so that that when piece h is placed against the face f of piece d withthe point of the tooth forward, its shank will be vertical, and the points will draw into the ground; butwhen the piece his turned the other way to set the points rearward, the shanks will incline that way, and

of part h, and bevel the lower face of said part alike each side of the tooth-hole to make a bearing for the head of bolt n, as in Fig. 3,

whereby said bolt secures the whole to the barrow-frame, the studs preventing lateral divergence of the parts, and the notches m of both ends of part h fitting alike on the stud l and bolt 72., so that the saidpart may be placed either way, at will, for setting the point for- Ward or backward, as desired.

I am aware that a square tooth curved at the lower end andtapered generallyto a point is not new; or a head in two parts of which the lower is reversible upon the upper; but

WVhat I claim as new and of I my invention 1.' A square shanked harrow-tooth having its lateral angles cut away increasingly toward the lower end, and said end curved forwardly, as described. 8o

2. In a head for holding a reversible harrow-tooth, the combination, with the fastening-screw and the wedge-shaped piece d, hav- ISAIAH H. REINER.

Witnesses:

- J Econ K. REINER, JNo. G. REIGLE.

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