US231080A - Platform-harrow - Google Patents

Description

'0. MORRIS & M. S. HEAOOOK. Platform Harrow.

No. 231,080. Patented Aug.10,1880.

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CHRISTOPHER MORRIS, OF HENRY COUNTY, AND MILES S. HEAOOOK, OF WVAYN E OOUN TY, INDIANA.

PLATFORM-HARROW.

SPECIFICATION formingpart of Letters Patent No. 231,080, dated August 10, .1880.

Application filed February 2, 1880.

To all whom it may concern Be it known that we, CHRISTOPHER MOR- Rls, of Henry county, Indiana, and MILES S. HEACOGK, of Wayne county, Indiana, have invented certain new and useful Improvements in Platform-Harrows; and we do hereby declare the following to be a full and correct description of the same, reference being had to the accompanying drawings.

Our invention consists of a novel construction of flexible harrow and double platform or clod-crusher, arranged to be operated together or separated, when desired, all of which will be fully understood by the following description and claims.

In the accompanying drawings, Figure 1 is a top view of the right-hand section of our machine. Fig. 2 is a longitudinal section of the same, showing the motion of the teeth in dotted lines; and Fig. 3 shows the adjustable spreader-bar and its connections.

In the construction of our machine we make two platforms or drags, A, and connect the same together by hinges M and rod or wire N, Fig. 1. By this means thelmachine is flexible, and the two sections of the platform or drag adapt themselves to the uneven ground, 1Lwhether a ridge or a hollow, as the case may Upon the platform A, or on each section thereof, is a series of teeth-bars, B, pivoted at their ends to the side bars, G, which connect the wholelseries togethergg'lhe teeth T are fastened to these bars B by means of eyebolts U, which are provided with screw-nuts V, which devices afford a very simple, cheap, and efficientgmeans of holding the teeth in place, as the eyebolts may be easily tightened in dry weather, if the teeth become loose; and the teeth may also be quickly removed for sharpening, or if they be bent or broken. Also, the teeth can be turned one-quarter round v three times, and have a sharp cutting-edge,

without smithing.

The teeth-bars B have knees .0 attached thereto, except the rear bar, which is provided with an upright lever, D, for the purpose (in connection with the reach E)of vibratinggthe teeth at pleasure. Aratchet-bar, L, locks this lever D, which drops into loop Q and catches on a bolt, R, therein, and a strong binder, F, rests upon the teeth-bars, and is locked in place by means of a staple, S, and crank-hook WV. By this means the teeth-bars are pressed hard upon the platform, and held as if permanently fixed thereto; and yet they can be released in a moment, when necessary.

The two sections of the harrow may be removed from the sectional platform, and in that case they are attached together by means of two friction bolts, H, provided with nuts and washers. The two sections of the platform have central draft-bars, l, which are bolted to the ends of the spreader-bar J, as seen in Figs. 1 and 3, and the inner edges of the harrow have twisted draft-bars P, also attached to the spreader-bar near its center. By this arrangement the two sections retain some flexibility, and yet are held to their work and prevented from cramping together.

The hitch-bail K, Fig. 3, is hooked into the eyebolt V, and its opposite end books into a corresponding eyebolt on the opposite half of the machine, while the team or draft is attached to the middle of the bail or point 70.

\\hen the harrow is removed from the platform the twisted link 0 serves for attaching the draft to the forward knee of the harrow.

The harrow and clod-crusher may be separated, and thus employed, which is sometimes very desirable, and a valuable improvement.

Having thus described our invention, what we claim, and desire to secure by Letters Patent of the United States, is

1. In a combined harrow and clod-crnsher in which the harrow-teeth are arranged to swing backward and forward, the double or folding harrow, in combination with the double or folding clod-crusher, arranged to be operated substantially as set forth.

2. In a folding or' double harrow and platform, the rocking teeth-bars B, provided with the series of knees 0, connected with the reach E, and thus movable together bymeans of the lever D, the same being locked in place by 5 means of the ratchet-1ever L, in combination with the binder F, resting on the teeth-bars B, and the crank-hook W, all arranged to operate substantially as set forth.

3. In a sectional platform-harrow, the spread- IOO er-bar J, the ends thereof being loosely bolted The above specification of said invention to the rigid draft-bars I of the two sections of signed and witnessed at Dublin, Indiana, this the platform, and the inner edges of the two 26th day of January, A. D. 1880. l sections of the harrow being provided with 5 pivoted draft-bars P, also connected with the CHRISTOPHER MORRIS.

spreader-barJ,wherebythetwosectionsofboth MILES S. HEACOCK. the platform and the barrow are made to retain some flexibility, and yet are held to their Vitnesses: Work and prevented from cramping together, JOHN W. SCOTT,

10 substantially as and for the purposes set forth. IDA J. SCOTT.

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