US517206A - Henry baker - Google Patents

Description

J (No Model H. BAKER. TRAGK HARROW.

,206. Patented Mar. 2'7, 1894.

AL umoamrnmacouwuw.

ABNINGTON, u. a.

STATES PATENT OFFICE.

HENRY BAKER, OF SANTA ROSA, CALIFORNIA, ASSIGNOR OF ONE-HALF TO GEORGE E. GUERNE, OF SAME PLACE.

TRACK-HARROW.

SPECIFICATION forming part of Letters Patent No. 517,206, dated March 27, 1894.

Application filed May 1, 1893. Serial ITO-472,606- (N0 model.)

To aZZ whom itlmwy concern: I

Be it known that I, HENRY BAKER, a citizen of the United States, residing at Santa Rosa, Sonoma county, State of California, have invented an Improvement in Track-Harrows; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to the class of harrows especially adapted for use on race racks.

It consists in the novel construction and combination of parts which I shall hereinafter fully describe and specifically claim.

The object of my invention is to provide a harrow which by reason of the mounting of its teeth and the adjustability of its frame is adapted to be readily set and conveniently and effectively used for properly preparing and dressing the surface of race courses and tracks.

Referring to the accompanying drawings for a more complete explanation of my invention -Figure 1 is a perspective View of my harrow. Fig. 2 is a detail view showing the manner of attaching the teeth.

The frame of the harrow consists of a longitudinal central bar A, one or more pairs of rearwardly divergent bars B, and suitable orossbars C. Upon the rear of the frame is j ournaled an axle D having endvcranks (1 upon which are mounted the rear wheels E. Pivotally connected with the forward end of bar A is a bent or angled clevis F, in the forward end of which is mounted the single front Wheel G.

In the other or lever end of the clevis is made a series of holes f in any of which, according to the height desired, is fitted a crossbarf, to which the draft linkH is connected. To this bar is also secured a rearwardly extending connecting rod 1, the rear end of which is joined to an operating lever J which is secured to the axle D, said lever being controlled by means of a pawl j and rack j. Now, upon throwing lever J forward, the axle D will be rocked,and by throwing its cranks downwardly, will lift the rear end of the frame. At the same time and by the same movement, acting through rod 1, the pivoted clevis F will be moved toward avertical line and will thereby lift the forward end of the frame. By reversing lever J, the Whole frame will be lowered. This adjustment is equal and uniform throughout, and thus the depth at which the teeth will run can be quickly and accurately regulated.

The bodies of the teeth K are angular in crosssection, and fit in correspondinglyshaped grooves or recesses I) made in the outer sides of the inclined bars B. They are secured in these seats by means of face-plates L which are applied to the sides of bars B, and by means of boltsZ are forced to bind upon the entire row of teeth on the side nearest them. By loosening one or more of these bolts in the vicinity of anytooth, it may be independently adjusted or removed and another substituted. Thus the required uniformity of adjustment necessary for the particular use of track harrowing can be easily and accurately efiected;

By the proper vertical adjustment of the cross bar f of the clevis, the front portion of the frame can be initially regulated to level the frame or to set it at such inclination as may be desired. Through the connection of the clevis cross bar with the main lever J by the rod I, the draft is transferred to the back of the harrow, thus leaving the front free to rest on its Wheel, and to ride evenly without tendency to rise, as is the case Where the draft is in front.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is= v 1. A harrow consisting of a tooth-carrying frame, a rocking axle at the rear portion of the frame, and having end cranks, wheels journaled on said cranks, a swinging clevis mounted on a horizontal axis at the forward end of the frame having a wheel, an operatin g lever for rocking the crank axle and a rod connecting said lever with the swinging clevis, whereby the cranks of the axle and theclevis are operated simultaneously to vertically adjust the frame, said rod having its forward end adjustably secured to the clevis substantially as herein described.

2. A harrow consisting of a tooth-carrying frame, a rocking axle at the rear portion of the frame and having end cranks, wheels journaled on said cranks, the swinging clevis cross-bar of the clevis, substantially as herein at the forward end of the frame, having in its described.

10 upper portion the series of holes, the adj nst- In Witness whereof I have hereunto set my able cross-bar mounted in said holes and carhand.

5 rying the draftlink, the forward wheel monn t- HENRY BAKER.

ed in the lower end of said elevis, the operat- \Vitnesses: ing lever for rocking the crank axle, and the N. W. BOSTWICK,

rod connecting said lever with the adjustable \V. H. LUMSDEN.

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