US738361A - Harrow. - Google Patents

Description

PATENTED SEPT. 8, 1903. A

v No. 138.3%'.

, G. D. SGBEDSSER.

HARRQW.

APPLICATION PILAR-1g, FEB. 9.11903.

nol MODEL.

No. 738,361. PATENTED SEPT. 8, 1903.

G. D. SGHLOSSER.

. HARROW.

urmoumu FILED rma. 9, 190s. NoMQnBL. 2 SHEETS-SHEET 2. Y

@kunnen UNITED STATES I Patented September 8l, 190:3'.

PATENT OFFICE.

HARROW.

SPEGIFCATION forn'ing` part of Letters Patent No. 738,361, dated September 8, 1903.

Application filed February 9 To @ZZ whom t may concern.'

4Be it known thatI, GEORGE D. SoHLossER, a citizen of the United States, residing at Sunnyside, in the county of Yakima and State of Washington, have invented certain new and useful Improvements in I-Iarrows; 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.

My invention is an improved harrow; and it consists in the peculiar construction and combination 0f devices hereinafter fully described and claimed.

The object of my invention is to provide a flexible beamless barrow the teeth of which are movable verticallyindependently of each other to adapt the barrow to conform to inequalities in the surface of the soil, and hence increase the efficiency of the harrow.

One object 0f my invention is to effect improvements in the construction of the harrow-teeth.

Another object is to combine a plurality of the harrowteeth with link devices which flexibly connect them together.

In the accompanying drawings, Figure l is a top plan View showing a portion of a harrow constructed in accordance with my invention. Fig. 2 is an elevation of the same. Fig. 3 is a view similar to Fig. 1, showing a modified construction of the harrow. Figs. et and 5 are detail views showing modified constructions of the links which connect the barrow-teeth together, and Fig. 6 is a similar view showing a modilied form of harrowtooth.

In the preferred form of my invention (shown in Fig. l) each ofthe barrow-teeth 1 is polygonal in crosssection, has concaved sides 2 formed with sharpened cutting edges 3 at the angles, and the ends of the tooth are pointed, as at 4, so that either end of the tooth may be used. Midway, or substantially so, between the ends of each harrowtooth the same is provided with radially-projecting ears 5, which are formed integral with the tooth, and the said ears are provided with transverse openings 6, adapted for the reception of link devices 7, which are employed to connect the teeth together in series and in such manner that each harrow-tooth 1903. Serial No. 142,504. (No model.)

is movable vertically independently of the others. The barrow-teeth and the link devices 7, which connect them dexibly together, constitute a flexible barrow fabric which is adapted to conform perfectly to inequalities in the soil when the barrow is in operation, so that the depressed portions, ruts, and the like in afieldwill be harrowed effectually, as well as the more elevated portions of the field. The front row of barrow-teeth may, as here shown, be flexibly connected to a draw-bar ct by means of hooks or similar devices l); but any approved means may be employed for drawing the harrow across` a field, and I do not limit myself in this particular.

In the form of my invention shown in Fig. 3 the barrow-teeth lm are triangular in crosssection andthe sides 8 thereof are flat. Each barrow-tooth has at its front edge at a point` intermediate its ends an opening 9 and is provided on its rear side with a rearwardlyprojecting lug 10, having an opening l1. The link devices employed in this form of my invention are rods 12, of suitable length, which are passed through the openings 11 and are provided with rearwardly-extending offset portions 13, which engage the openings 9. It will be observed by reference to Fig. 3 that the barrow-teeth l are disposed in rows one behind another and that the barrow-teeth are set alternately, so that each barrow-tooth is directly opposite and in front of the space between two barrow-teeth behindiit.

By connecting the link devices to the intermediate portions of the barrow-teeth and pointing both ends of the latter, as herein described, the barrow-teeth may be used with either side down, so that its efliciency is very greatly prolonged. It will be further understood that in the event that a barrow-tooth or link device becomes broken the same can be readily replaced at very small cost. fIdo not desire to limit myself tol the precise construction and combination of devices herein shown and described, as it is evident that modifications may be made therein without departing from the spirit of my invention and within the scope of the appended claims.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, ism

l. A harrow comprising a plurality of teethr each having openings between its ends, and links flexibly engaged with said openings and each connecting a plurality of the teeth together, substantially as described.

2. A harrow comprising a plurality of teeth each provided on its front and rear sides with openings between its ends, and links engaged with said openings and each connecting a plurality of the teeth together, the axes of the teeth being substantially central with relation to the links, substantially as described.

3. A harrow comprising teeth each provided on its front and rear sides with openings between its ends, and arranged in rows, the teeth of the respective rows being opposite the spaces between the teeth of the adjacent rows, and link-rods extending transversely GEORGE D. SOHLOSSER. Witnesses:

M. L. WALKER, CLARA B. MATHEsoN.

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