US616985A

US616985A - stares

Info

Publication number: US616985A
Authority: US
Publication date: 1899-01-03
Anticipated expiration: 1916-01-03

Description

No. 616,985. Patented lan. 3, |899.

N. U. STARKS.

CULTIVATOR.

(Application led May 2.75, 139B.) (No Model.) 3 Sheets-Sheet I.

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n b Q Q Il l I` l N I l l yl mx QI g l Suva/Moz:

No. 6|6,985Y Patented Jan. 3`, |899. N. 0., STABKS.

CULTFVTUR.

(Application med May 25, 1898.) I

3 Sheets--Sheet 2.

- Patented Ian.' 3, |899. N. 0. STARKS.

GU LTIVATOB.

(Application led may 25, 189B.)

(No Model.)

s! Sheets-Sheet 3.

NITSED STATESv PATENT OFFICE'.

NILS O. STARKS, VOF MADISON, WISCONSIN, ASSIGNOR TO TI-IE FULLER da JOHNSON MANUFACTURING COMPANY, OF SAME PLACE.

CU LTIVATO R.

SPECIFICATION forming part of Letters Patent No. 616,985, dated January 3, 1899.

Application tiled May 25, 1898. Serial No. 681,667. (No model.)

To all whom it may concern.-

Be it known that I, NILs O. STARKS, a citizen of the United States, residing at Madison, in the county of Dane and State of Wisconsin, have invented certain new and usefulImprovements in Cultivators, of which the following is a specification.

My present invention relates to wheeled cultivators, the advantages and construction of which will be hereinafter set forth, reference being had to the annexed drawings, wherein- Figure lis a top plan view of the cultivator; Fig. 2, a side elevation, the beam and shovels being elevated; Fig. 3, a similar View, the beam being depressed; Fig. 4, a detail view of one of the shovels, and Fig. 5 a detail view 'of a portion of the machine.

One object of the present invention is t provide an improved construction of the equalizer, whereby the draft for each horse is made the same and there is no downpull on the end of the beam.

Another object is to provide spring means whereby the gangs can be adjusted to carry at any desired point when the shovels are in the ground and at the saine time to lift them when they are to be carried, as when turning or going from one field to another, and to hold them against lateral or swinging movement when thus elevated.

The invention also has for its further object an improved construction for mounting the shovels upon the beams.

Referring to the drawings, A denotes an arched axle having suitable wheels B mounted thereon.

O indicates the pole, connected to the axle by suitable braces D.

Secured upon each of the upright members E of the axles are castings F and G, in which are j ournaled uprights Il, each upright being formed with a rearwardly-extending arm I at its upper end and with an arm J at its lower end, which stands at substantially right angles to the upper arm I, saidlower arms J extending out in line with the axle, but at a distance above the lower horizontal members thereof. In otherwords, the uprights H and the members I and J form a double crank,

with the arms or members offset at an angle of ninety degrees v to each other. The rear ends of the arms I are pivotally connected to each other by a link or rod K, and from the ends of each of the arms J there extends forward a draft rod or bar L, carrying the singletrees M at their forward ends. From these connections it will be seen that as one draftbar moves back the other must of necessity move forward to the same degree, or vice versa, and this without affecting the direct forward movement of the machine.

Intermediate the wheels and the upright members E there is pivoted upon each of the horizontal members of the axle a casting N, and to this casting is swiveled a beam O, through a suit-able connection P, the arrangement of parts being such that the beam may swing sidewise and also be raised and lowered asl desired. In the form illustrated each of the beams is formed of two rearwardly-diverging members,the lower ends of which are each provided with shovels Q, mounted in a manner which will be presently set forth.

Pivoted upon a stud R, extending out from the casting F, is a bell-crank lever, one arm S being provided with a hooked end engaging with one end of a rod T, the opposite end of which is secured to the beam. To the opposite end or arm U of the lever there is attached a link V, to which is connected a coiled spring IV, the lower end of the spring being adjustably secured to an arm X, extending out from the axle. Mounted in the arm U of the bell-crank lever is an adjustable bar a, provided with a rounded head b, which bears directly against the link V. By extending the bar forward the linkV is elevated or brought nearer the horizontal, whereby greater leverage is obtained by the spring, and consequently less lifting action need be applied to the handles of the beams to elevate them. By adjusting the bar a in or out the elevation at which the beams will normally stand while in working position may be regulated as desired. The parts may be so adjusted and regulated that the shovels will work to the desired depth; but should it be desired to elevate them only a slight upward pressure or pull need be exerted on the han- ICO dles, when the spring will elevate them to their highest position and hold them there. To assist in maintaining the beams in their elevated position, a forked arm c is formed upon the lower portion of the bell-crank lever, the

rod T passing in between the forks d thereof, as indicated in Fig. 2. This construction not only serves to lilnit and determine the upward movement of the beams, but it also prevents them vfrom swinging sidewise-a point of material advantage.

Each of the shovels Q is adj ustably secured upon an elbow-lever c, which is pivoted to the lower end of the beam, and to the .rearwardly-extending arm f of said lever is pivoted an arm g. Said arm g is provided with a hook 7L at its upper end, the hooked portion extending through an opening formed in an arm t'. 'This latter arm is pivoted to said arm g at j, while its upper end is likewise connected to a casting it, adj ustably secured upon the beam. Arm t' extends down beyond the pivotal point j and carries a setscrew Z, which bears directly against the rear face of arm or member g. A spring 'm is adjustably secured between a rearwardly-extending` portion of casting 7c and the hooked end h, the spring serving to keep the parts in the position indicated in Figs. 2 and 3, or, in other words, keeping the members g and i, which form a toggle, in their straightened position. By adjusting the screw Z the relative position of the pivotal points of the toggle may be changed, as desired, and the force necessary to move the parts against the spring determined to a nicety.

In Fig. 4 the shovel is illustrated as having contact with an obstruction, and by reason of the forward movement of the machine the toggle brokem thus relieving the parts from any injurious or breaking strains. Normally the spring will hold the shovel to its work and will return it to its properposition when the obstruction has been cleared.

Having thus described my invention, what I claim isl. In a cultivator or plow, the combination of an axle; two upright members journaled thereon and connected at their upper ends to turn in unison; bars extending out from the lower ends of the upright members in approximate alinement with the axles; and draft-bars connected to the outer ends of said bars.

2. In a cultivator or plow, the combination of an axle; two upright members journaled thereon; arms extending rearwardly from the upper ends of said members; a bar connecting the outer ends of said arms; bars extending out from the lower ends of said upright members in approximate alinement with the axle; and draft-bars connected to the outer ends of said bars.

3. In a cultivator or plow, the combination of an arched axle; members H journaled to the upright portions of the axle and provided with arms I and J a bar K connecting the arms I; and draft-bars extending forward from the ends of arms J, substantially as described.

4. In a cultivator or plow, the combination of an axle; a beam pivotally connected thereto; an elbow-lever pivoted upon the upper part of said axle; a link T connecting the rear end of said elbow-lever and the beam; a spring `connected to the forward end of said lever and to a fixed portion of the plow and serving to raise the beam; and means independent of the spring for varying its leverage, whereby7 the beam may be held in any desired position.

5. In a cultivator or plow, the combination of an axle or support; a beam pivotally connected thereto; spring mechanism for holding the beam at any desired elevation and permitting a lateral movement thereof; and a forked arm c adapted, as the beam is raised, to swing out into line with the beam-support and to embrace the same, thereby holding it against lateral movement.

G. In a cultivator or plow, the combination of an axle or support; a beam pivotally connected thereto; an elbow-lever pivoted upon the axle; a connection between the rearwardly-extending member of said lever and the beam; a link V pivoted to the opposite arm of the lever; a bar a mounted in the el bow-lever and bearing at its outer end against the link; and a spring connected to the lower end of the link and a fixed portion of themachine.

7. In a cultivator or plow, the combination of an axle or support; a beam pivotally connected thereto; an elbow-lever pivoted upon the axle; a connection between the rearwardly-extending member of said lever and the beam; alink V pivotally connected to the opposite arm of the elbow-lever; means for limiting the swinging movement of the link; and a spring connected with the lower end of the link and a fixed portion of the machine.

8. In a cultivator or plow, the combination of an axle or support; a beam pivotally connected thereto; an elbow-leverpivoted upon the axle; a connection between the rearwardly-extending arm of said lever `and the beam; a link V connected to the opposite arm of the lever; means for varying or adjusting the position of the link; a spring connected to the lower end of said link and a fixed portion of the machine; and a forked arm c connected to the elbow-lever.

9. In a cultivator or plow, the combination of an arched axle; a beam pivotally secured thereto; an elbow-lever pivotally mounted upon the upper portion of the axle; a rod T connecting the rearwardly-extending arni'of the lever and the beam; a link V connected to the forward arm of the lever; a spring WV connected to the lower end of the link and at its lower end to an arm X extending out from the axle; and a forked arm c extending out IOO IIO

from the lever designed to receive and embrace rod T when the beam is raised to its highest position.

l0. In a cultivator or plow, the combination of an arched axle; a beam pivotally connected thereto; an elbow-lever pivotally mounted upon the upper portion of the axle; a rod T connecting the rearwardly-extending arm of the lever and the beam; a link V connected to the forward arm of the lever; a rod ci adjustably mounted in said forward arm and provided with a head b designed to bear against the link; a spring W connecting the link to a fixed portion of the frame;and a forked arm c extending out from the lever designed to receive and embrace rod T when the beam is raised to its highest position.

ll. In combination with a beam; an elbowlever pivoted thereto at its lower end; a shovel carried by the lower arm of said lever; a casting secured upon the beam above the lever; a toggle connection between said casting and the rearwardly-extending arm of the elbow-lever a spring extending from the casting to a hooked end upon the upper end of the lower member of thetoggle; and a screw limiting the movement of the toggle toward its straightened position.

l2. In combination vwith a beam; an elbowlever pivoted thereto at its lower end; a shovel carried by the lower arm of said lever; a casting 7c secured upon the beam above the lever; an arm g pivotally secured to the rear arm of the lever, and provided with a hooked end h; an arm pivoted to the casting and provided with an opening through which hook h is passed; a pivotal connection j between said arms g and i; and a screw Z mounted in the lower 'end of arm i and bearing upon arm g, substantially as described.

In witness whereof I hereunto set my hand in the presence of two witnesses.

NILS O. STARKS. Witnesses:

W. R. BAGLEY, EDWARD F. APPLEBY.