US292985A - Harrow - Google Patents

Description

3 Sheets-Sheet 1'.

(No Mode.)

E. V. CALDWELL.

HARROW. l

Patented Feb. 5, 1884.

(No Model.) 3, Sheets- Sheet 2.

E. V. CALDWELL.

8 ARROW No. 292,985. y Patented Feb. 5,1884.

WITNESSES: Y INVENTQR QB v Bf Y Y l Y Vaorvzey., l

(No Model.) 3 sheensmsheet '3.

L E. V. CALDWELL.

HARROW. 10.292.985 l Patented 11610.5, 1884.

Fly.

INVENTOR N. PUERS Phumumgmpmr, washington. IIJ:4

l U-siren STATES Y PATENT Fries.

HARRow.

SPECIFICATION forming part` of Letters Patent No. 292,985, dated February 5, 1884,

` Application tiled May 5, 1883.V (Xo model.)

the form of the harrow when used as a cultivator or as a double side harrow. Fig. 4 shows the harrow in form when used as a rake; Fig. 5, in the form of a single side harrow. Fig. 6 is an enlarged perspective view of the harrow-tooth.

The object of the present invention is to provide an adjustable combination-harrow capable of having all its-parts detached or changed so as to assume a proper form and shape desirable for use as 'a harrow, cultivator, rake, pulverizer, cotton thinner or blocker, &c.; and it consists of a draft-beam having at its rear the two sets of transverse arms,

with removable tooth-beams hinged to said arms, provided with teeth on the front beams forwardly inclined, and the teeth on therear beams rearwardly inclined, and with an adjusting rod and clamp for regulating the same at any angle, all of which will now be set forth in detail.

In the accompanyingdrawings, A represents the draft-beam, and B B cross-arms at the rea-r end, located a short distance from each other. I prefer to have one of the crossarms gained into the beam on the upper side, and a similar arm gained into the beam on the under side, and the two secured together and to the beam by a single bolt, C. The rear 'arms are preferably somewhat longer than the forward arms. Suitable handles, D, are secured to the rear end of the beam A, and project upwardly and backwardly, so as to be in convenient position to be grasped by the operator.

E E represent the branching tooth-beams, which are hinged at their inner ends to the arms B B, as shown by the bolts at F. The outer ends of these beams are connected by the links G.

I-I represents an adjusting rod or bar running across from the tooth-beam on one side to the similar beam onthe other side. This adjusting-bar is so arranged that the beams E E may be projected out at nearly right angles to the draft-beam, or they may incline rearwardly, and when adjusted the central clamp, I, will hold the same in position.

Projecting upwardly from the clamp I are branching or radiating arms J, the upper ends of which are attached to the handles D for supporting the same.

K is a seat secured at its rear end to the post L, and supported at its forward end on the rods or legs M, which project upwardly from the beams E.

The teeth UN are triangular in cross-section and bent centrally, as shown, the upper half, O, being vertical when in position, and the lower half, O. inclined either forwardly or rearwardly. rlhe upper end is screw-thread ed and provided with a shoulder, so that when thethreaded end is placed through the beam and a nut put thereon the tooth can be firmly held to the beam. As will be observed in Figs.

l and 2, the lower limbs, O', of the teeth on the two forward beams, E, incline forwardly, whereas the lowerlimbs of the teeth on the two rear beams, Il', incline rearwardly. By their disposition. the soil is more effeetually pulverized than by having the teeth straight; and it is also obvious that the forward teeth will more easily penetrate the soil and stir up the same, while the inclined dragging shape of the rear teeth insures pulverization.

To convert the harrow into acultivator, the rear beams, E, are removed, and the ends of the adj Listing-rod l-I attached to the outer ends of the forward tooth-beams, E, as shown in Fig. 3. Ilhe beams E may be inclined at any angle to suit the requirements.

To provide a rake, the parts forming the adjnstable bar II are separated and one of their ends secured to a bolt on the forward end of the beam, and the rear ends of the separated bars II secured to the forward beams, E. The beams E are secured to the forward arms B and projected out at right angles, the rear beams, E', being removed. The forward inclination. of the teeth on the beam E causes them t-o act properly for raking purposes.

IOO

Fig. 1 represents this forni to the best advan- I on the front beams forwardly inclined, and tage. To convert it into a single side harrow the teeth on the rear beams rearwardly inor eultivator, only one of the forward beams, olined, and with the adjusting-rodHand olarnp 15 E, is used, and one of the sections of the ad- I, substantially as herein set forth.

5 justing-rod H. The latter being` slotted or In testimony that I claim the foregoing I made in the form of a link permits the b eam have hereunto set iny hand, this 31st day of E to be thrown at any angle. y March, 1883, in the presence of witnesses.

what I 01mm as new 1S I EDWIN v; CALDWELL.

The combination of the draft-beam A, havl 1o ing,` at the rear end the two sets of transverse IVitliesses:

arms B B, with the removable tooth-beams E I. C. SHRADEP, E', hinged to said arms, provided with teeth l-I. C. PHILLIrs.

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