US455754A - August lindgren - Google Patents

Description

2 Sheets-Sheet I.

(No Model.)

A. LINDGREN. ToNGUBLBss WHEEL GULTIVATOR.

No. 455,754. Patented July 14,1891.

(No Modell) 2 sheen-sheer 21 A. LINDGREN. TONGUBLBSS WHEEL GULTIVATOR,

No. 455,754. Patented July 14, 1891.

' UNITED STATES PATENT OFFICE.

AUGUST LINDGREN, OF MOLINE, ILLINOIS, ASSIGNOITO MOLINE PLOW COMPANY, OF SAME PLACE.

TONGUELESS AWHEEL-CU LT|VATOFL SPECIFICATION forming part of Letters Patent N o. 455,754, dated July 14, 1891.

Application filed October 14, 1890.

To @ZZ whom, t may concern.'

Be it known that I, AUGUST LINDGREN, of Moline, in the county of Rock Island and State of Illinois, have invented certain Improvemen ts in Tongueless Wheel-Cultivators, of which the following is a specification.

Thisinvention relates to tongueless wheeled cultivators in which a wheeled frame is provided with beams jointed at their forward ends to the frame, so that they can rise and fall with relation thereto.

The invention consists in providing a machine of this character with lifting-springs designed to assist in supporting the beams while in operation, in order to facilitate their control as tothe depth of cut and to assist in raisingthe beams to an inoperative position when the machine is not in motion or on the cessation of the draft, the said springs being combined with draft-levers, hereinafter described in detail.

The invention also consists in the construction and combination of parts hereinafter described and claimed.

In the accompanying drawings, Figure l is a'perspective view of a cultivator with my invention embodied therein. Fig. 2 is a top plan view of the same. Fig. 3is a perspective View of one of the liftingsprings and one of the connected levers detached. Fig. 4 is a sectional elevation on the line x w of Fig. 2,

showing the relation of the parts when thel machine is in operation. Fig. 5 is a similar view showing the relation of the parts with the beams raised to inoperative positions.

Referring to the drawings, A A represent vertical arms journaled at their upper ends in sleeves a a', adj ustably mounted on a horizontal connecting-bar a2. At its lower end each of these arms is bent and extended outward, forming the axles of the machine, on the outer ends of which are mounted groundwheels B B. As both arms and the parts carried thereby are duplicates, the description of one will suftice'for both.

Between the ground-wheel and the vertical portion of the arm a sleeve C is loosely mounted, to which is attached by a vertical axis the forward end of a beam D, carrying at its opposite end the usual hoes or shoes d d and handle d2. The central portion of the Serial No. 368,068. (No model.)

sleeve vC is cut away or recessed, the purpose of which will presently appear.

Upon the axle, on either side of the sleeve C, are loosely mounted sleeves or collars E E', 5 5

to the under sides of which is rigidly bolted a draft-lever F, (shown in vdetail in Fig. 2,) provided at its lower end with a drag-shoe k, the office of which will hereinafter appear.

l'The draft-lever consists of a straight bar f 6o f2. At its upper end the straight bar fex- 65 -tends outward some distance from the end of its companion bar f', and the ends of both bars are perforated for the passage of the upper laterally-bent end of a spring-supporting rod G. This rod extends `allel to the draft-lever to a point adjacent to the axle, where it is rigidly secured to the top 4of an arm g, which is provided with a perforated head g, encircling the axle and seated lwithin the recessed portion of the sleeve C, be-

`fore referred to.

v The rod G is encircled I-I, the lower end of which is seated upon the top of the arm g. This spring is compressed :by means of a washer h, 'the rod above the spring and'connected by a link h2 to the under side of the beam. To the bar f of the draft-lever an arm/L' is bolted,

by a coiled spring which extends above the axle rearward, where it is bent laterally.` Between its two ends this arm is bolted to an upward extension of fthe sleeve B. The purpose of this arm is to Support the beam when it is raised to an inoperative position.

From the vforegoing description it will be 9o 'seen that the draft-lever and the spring-snpporting rod turns on the axle as an axis,which also forms the axis of the beam. Owing to this construction and to the connection between the spring-compressing Washer and the 9 5 beam, the spring in expanding will tend to lift the beam, and as the spring tends to exs pand at all times the result is that the beam is yieldingly sustained.

The operation of the machineis as follows: vroo When in operation, the strain from the draftanimals attached to the upper ends of `the substantially par- 7o loosely mounted on 8o draft-levers tends to lower their upper ends to the position shown in Fig. 4. This action will cause the springs to be compressed, allowing the beams to descend to an operative position in the soil. When, however, the draft-levers are relieved from strain at their upper ends, the springs resume their expanded state and exerting a lifting action on the beam at the same time cause the upper ends of the draft-levers to ascend and the lower ends, carrying the drag-levers, to descend in contact with the ground, as shown in Fig. 5,in which position the 'parts remain. T he beams can then be lifted and placed upon the arms i. It will be seen that when the machine is in motion the draft-levers are inoperative, as far as any action of the dragshoes is concerned, .and the beams are in operative position; but when the machine is not in motion and the draft-levers are relieved from strain the dragshoes are automatically caused to come into 4operative position and the force of the springs .permitted to be applied to assist in lifting the beams.

i In order that the arched frame formed by the vertical portions of the arms A A and the connecting-bar a may be maintained in an upright position, the collars E, through which the arms pass at their lower ends, are formed with ears Z Z', extending on each side of the arm. WVhile these ears are constructed to admit of alimited amount of motion of the draft-levers with relation to the arms, they at the same time maintain the latter in a substantially upright position.

It is to be understood that while I have shown and described certain details of construction suitable for carrying into effect my invention the same may be modified within reasonable limits without departing' from the spirit of the invention, provided the operation is substantially the same.

Having thus described my invention, whatI claim is- 1. In a cultivator, the combination, with the beams which have a rising and falling movement, of liftin g-sprin gs and draft connections, said parts arranged to permit the springs to `exert a lifting force on the beams on the cessation of the draft and to permit the beams to descend to operative positions on the application of draft. Y

2. In a tongueless cultivator, the combination of the wheeled frame, the beams connected thereto to rise and fall, the draft-levers, the lifting-springs thereon, and connections between the springs and the beams.

3. In a tongueless wheeled cultivator, the combination, with the axles, of the beams mounted thereon to rise and fall, the draftlevers also mounted on said axles and provided at their lower ends with the drag-shoes, the spring-sustaining rods connected at their upper ends to the drag-levers and mounted loosely on the axles at their opposite ends, the springs encircling the rods, and the links connecting the upper ends of the springs with the beams.

4. In a tongueless wheeled cultivator, the combination of a wheeled frame, the rising and falling beams D, mounted on horizontal axles, the draft-levers F, adapted to bear at their rear ends on the ground when not in action, the arms i, attached to the draft-levers to sustain the beams in an inoperative position, and t-he lifting-springs located between the draft-,levers and the beams, whereby the springs are enabled to assist in lifting the beams out of action and also to assist in carrying them, when the machine is at rest, to the supporting-arms t'.

5. In combination with the connecting-bar a2, the arms A A jointed thereto to swing forward and backward and fastened into axles at their lower ends, the wheels, the beams coupled to the axles, the collars E, having ears toprevent the falling of the arms A A', and the draft-levers attached to the collars and extended rearward to rest upon the ground when relieved from the draft, whereby the draft-arms are caused to assist in maintaining the axle-arms.

6. In a tongueless cultivator, the combination, with the axle, of the beams provided at their forward ends with sleeves encircling the axle, said sleeves recessed at the center, the draft-eveners provided with sleeves mounted on the axle at each side of the first-named sleeves, the spring-sustained rods connected at their upper ends to the draft-eveners and provided at their lower ends with the perforated heads encircling the axles and seated in the recessed portion of the beam-sleeves, the coiled springs encircling the rod and seated at their lower ends upon the heads, and the links connecting the upper ends of the springs and the beams.

In testimony whereof I hereunto set my hand, this 16th day of September, 1890, in the presence of two attesting witnesses.

AUGUST LINDGREN.

Witnesses:

W. V. RICHARDS, M. G. MARoNEY.

IOO

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