US1104293A - Cultivator. - Google Patents

Description

M. M. DECKER. GULTIVATOR.

APPLICATION FILED NOV. 8, 1911.

1,104,293, Patented July 21, 1914.

2 BHEETB-SHEET 1.

l I I i Witnesses Inventor by J / I I I a c Attorneys M. M. DECKER.

OULTIVATOR.

APPLICATION rum) nov. a, 1911,

Attorneys Witnesses MAL M. DECKER, OF BURR OAK, KANSAS.

CULTIVATOR.

Specification of Letters Patent.

Patented July 21, 1914.

Application filed November 8, 1911. Serial No. 659,214.

T all whom it may concern Be it known that I, MAL M. DECKER, a citizen of the United States, residing at Burr Oak, in the county of Jewell and State of Kansas, have invented a new and useful Cultivator, of which the following is a speci fication.

This invention relates to cultivators, its

I proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawingsz Figure 1 is a plan view of the machine, the positions of the rows relative thereto being indicated by dotted lines, a portion of the seat being removed. Fig. 2 is a side elevation of the machine, one of the wheels being removed. Fig. 3 is a detail View of a portion of the cultivator and showing the connection between one of the beams and its spring.

Referring to the figures by characters of reference 1 designates a tubular axle member angular in cross sectional contour and adapted to receive angular extensions 2 held against displacement relative to the tubular member 1 by means of set screws 3 or the like. Each extension 2 has a downwarlly extending arm 4r from the lower end of which projects a spindle 5, the spindles being supported by wheels 6. Thus it will be seen that the wheels 6 can be adjusted toward or away from each other by loosening the screws 3 and sliding the extensions 2 into or out of the tubular axle member 1.

A draft beam 7 is secured upon the middle portion of the axle section 1 and is further connected to said section by means of rearwardly diverging braces 8 connected, adjacent their rear ends, by a cross strip 9.

Seat supporting strips 10 extend rearwardly from this cross strip 9 and the beam 7 and tltielieat carried thereby has been indicated a An arched bar 12 is secured to the beam 7 in front of the axle and said bar is proyided at its free ends with laterally extendmg trunnions 13. Downwardly and for wardly inclined braces 1% connect the end portions of the tubular member 1 to the trunnions 13 and upwardly and forwardly inclined braces 15 are secured to the arms l of the axle close to the spindles 2 and extend upwardly to and are clamped upon the up per portion of the arch 12. Any suitable means may be provided for adjustably connecting the braces 15 to the arch 12 and in the drawings an ordinary strip 16 has been illustrated.

Sleeves 17 are mounted on the trunnions 13 and have extensions 18 to which the beams 19 of the cultivator are connected. Each of these beams has a handle 20 connected to it and extending close to the seat 11 so that the driver can readily grasp it and thus regulate the operation of the cultivator shovels.

An arm 21 extends rearwardly from each end portion of the section 1 and supports a toothed segment 22 and an adjusting lever 23. Said lever is connected by means of a chain 24, to the beam 19 thereunder, it thus being apparent that by actuating the lever the beam 19 can be raised or lowered as desired. A spring 25 connects each beam to the arch 12 and facilitates the elevation of the beam to raise the shovels out of engagement with the soil.

By referring to Fig. 2 it will be seen that, when the beams 19 are lowered to active positions, the lower end of the spring is arranged under or slightly in advance of the pivot trunnion 13 so that the spring does not act to lift the beam under these conditions but, if it has any action, tends to force the shovels into engagement with the soil. When, however, the handles 20 are pulled upwardly a sufficient distance to swing the lower end of the spring backwardly from under the trunnion, said springs will promptly be brought into play so as to swing the beams upwardly. lVhen lever 23 is locked against movement, the connection between the lever and the beam limits the downward movement of said beam when handle 20 is pushed downwardly. The beam can be readily swung upwardly out of active position whenever desired simply by giving a slight upward pull on the handle 20 so as to bring the spring 25 into play whereupon said spring will operate to completely elevate the beam and lift the shovels out of engagement with the soil.

It will be noted that while each beam can be swung upwardly or downwardly about the trunnion 13 as an axis, it can also be swung laterally about its connection with the extension 18.

As each beam 19 is connected to its lever 23 by a chain 24, it will be obvious that should the shovels carried by the beam strike an unyielding obstruction, the beam will be swung upwardly so as to bring the lower end of the spring 25 past the dead center, thus causing said spring to lift the beam upwardly and thereby elevate the shovels so as to pass over the obstruction. This automatic operation is permissible in View of the flexible connection between the beam 19 and lever 23.

It will be noted that the lower end of each spring 25 is provided with a curved terminal portion which is extended forwardly under the trunnion 13. Ob"lOl1Sly, when the sprin is pulling upwardly on the extension 18 and tending to press the rear end of the beam 19 downwardly against the soil, this downward movement will be limited by the curved terminal portion of the spring moving forward against the trunnion. Consequently the action of the spring 25 in forcing the shovels into the ground is limited.

Each beam 19 has an angular cross beam 26 bolted or otherwise secured at its center thereto, said beam carrying, at its ends, shovels 27 and 28 respectively, means being provided for adjustably connecting the shovels to the beam. The shovel 27 at the outer end of the beam is located a short distance outside of the path of wheel 6 in the front thereof, whereas shovel 28 at the inner end of the beam is preferably arranged under the seat 11. That portion of each beam 19 back of the beam 26 is preferably provided with two cultivator shovels 29 and 30 respectively, the shovels 29 being adjustably connected to the outer faces of the beams 19 while the shovels 30 are arranged upon the inner faces of said beams at any desired distances back of the shovels 29.

any suitable The shovels 28 are spaced apart a suflicient distance to permit a row to extend between them and shovels 27 are so adjusted as to be supported close to the adjoining rows.

A whiflle tree 31 is mounted upon the beam 7 and carries swingle trees 32 so arranged that one draft animal can be located between every two rows.

When the machine is in use the arched axle formed of the sections 1 and 2 will straddle only one row and the supporting wheels 6 will travel close to the two adjoining rows, said rows being indicated at A in Fig. 1. Thus four shovels are supported between every two rows, the shovels 28 serving to cultivate close to the middle row while the shovels 27 cultivate close tothe two side rows. The spaces between the shovels 27 and 28 are cultivated by the shovels 29 and 30.

It will be apparent, from the foregoing, that a machine much narrower than the ordinary two row cultivator can be used for cultivating the spaces between three rows and as the machine is thus smaller and lighter, it can, obviously, be made much more cheaply than other machines of equal efficiency.

By utilizing an arched axle which is adjustable longitudinally, the machine can be used to cultivate between rows differentdis tances apart.

What is claimed is The combination with an arched member having a laterally extending trunnion, a beam pivoted on the trunnion and having an angular cross beam, and shovels connected to the two beams, of a coiled spring secured at its upper end to the arched member and having a curved terminal portion extending back of and under the trunnion and connected to the beam, said spring constituting means for shifting the shovels either downwardly or upwardly, the curved terminal cooperating with the trunnion to limit the downward movement of the shovels under the action of the spring. I

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

MAL M. DECKER.

Witnesses:

F. DOBBINS, E. F. HAWORTH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of ratents, Washington, D. G.

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