US2543943A

US2543943A - Land leveler

Info

Publication number: US2543943A
Application number: US702760A
Authority: US
Inventors: Christian S Skeem
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-10-11
Filing date: 1946-10-11
Publication date: 1951-03-06
Anticipated expiration: 1968-03-06

Description

March 6, `1951 Filed Oct. ll, 1946 C. S. SKEEM LAND LEVELER 2 -Sheets-Sheet l March 6, 1951 c. S. sKEEM 2,543,943

LAND LEVELER Filed 00T.. ll, 1946 2 Sheets-,Sheet 2 Patented Mar. 6, 1951 nog LAND LEVELER `Christian S. Skeem, Buhl, Idaho Application October 11, 1946, Serial No. 702,760

The present invention relates to land levelers and is more particularly concerned with a tractor-drawn leveler.

, The primary object ofl the invention is to provide a device of the character referred to which is hitched at approximately the center of gravity to a tractor, instead of the forward end, and the tractor is inside the apparatus.

Another object of the invention is to provide a leveler with means to adjust the leveler blade vertically thus allowing it to drag a small or large load of dirt and prevent the rearwardly extending arms of the blade from following any uneven portions of the plowed or loose ground.

A further object of the invention is to provide a balanced ground leveler which can be lifted clear of the land so as to facilitate turns at the end of a field, backing it into corners or places at the end of fields, as well as transporting it from one eld to another. Such construction is also designed to allow the machine to deposit additional dirt where desirable in low places.

Still another object of the invention is to provide a device of the character referred to of simpler and more durable construction than prior devices.

With the foregoing and other objects and advantages in View the invention consists of the novel construction and arrangement of parts hereinafter described and claimed.

In the accompanying drawings illustrating the invention:

Figure l is a side elevation of the landvleveler attached to a tractor.

Figure 2 is a top plan view thereof.

Figure 3 is a vertical transverse section on the line 3 3 of Figure 1.

truss bars Il and the leveler blade I8 is located transversely between arms Il and I2.

The leveler blade is hinged to move vertically by two bell crank levers I which are pivotally mounted to swivel vertically in brackets 26 se 2 Claims. (Cl. 37-150) cured on the inner sides of the arms. The forks of the levers are pivotally attached to the blade I8, thus permitting vertical adjustment of same.

Secured perpendicularly to the blade at its center is a standar-d 2i, the upper end of which is slotted to receive the rear end of a longitudinally disposed adjusting rod 22. This is retained in the slot 23 by lock washers 24 which allo-w vertical movement. Adjusting rod 22 is threaded and carried by a threaded collar 25 which is provided with diametrically opposed studs 26 pivotally mounted in the bifurcation of a yoke 21 secured perpendicularly on the crossbar I3. This allows the adjusting rod to swivel up and down, thereby raising or lowering the blade I8 and adjusting the vertical position of same. Rod 22 is rotated by crank handle 23 on lits front end.

Removably attached to said yoke is an upper and forwardly extending bar 29 and a pair of lower side bars 30. These are provided in their rear ends with bolt holes designed to fit on removable pins or bolts SI on the yoke. The forward ends are similarly apertured for pins or bolts on the tractor, thus providing a suitable hitch for attachment of the device to the power lift of the tractor T. A pair of rearwardly disposed and inclined bracing rods 32 are connected to the cross bar I4 of the frame and yoke 2l'.

When it is desirable to lift the leveler off the ground for any purpose, it can be readily elevated, as an entirety, by the power lift, because the frame is attached at approximately its center of gravity and the weight evenly balanced on each side of the bar I3.

Even if the hitch is not exactly located at the center of gravity ofthe frame the leveler will be lifted parallel to the ground, because bar 2S rises whenever the side bars 30 are raised, so that the leveler will be held in a substantially horizontal position.

As different embodiments may be made of this inventive concept and modications may be made in the embodiment hereinbefore shown and described, it will be understood that the matter herein is to be interpreted as illustrative merely and not in a limiting sense.

What I claim is:

l. The combination with a tractor including a power lift, of a land leveler comprising a frame including a pair of longitudinally-extending side bars for normally resting upon the surface of the ground and spaced from each other to admit the tractor adjacent the middle of the frame, a leveling blade positioned transversely of said side bars at substantially their mid-length and mounted for limited vertical movement on the latter, a substantially vertical standard having one end secured to said blade, a substantially vertical yoke arranged intermediate said standard and the rear end of the tractor and carried by said side bars, means for operatively connecting said yoke to the power lift of the tractor, a collai` pivotally supported in said yoke, a longitudinally-extending rod rotatably mounted and threadedly engaged in said collar and having one end operatively connected to the other end of said standard,

and means on the other end of said rod for rotating the latter.

2. The combination with a tractor including a power lift, of a land leveler comprising a frame including a pair of longitudinally-extending side bars for normally resting upon the surface of tne ground and spaced from each other to admit the tractor adjacent the middle of the frame, a level ing blade positioned transversely of said side bars at substantially their mid-length and mounted for limited vertical movement of the latter, a substantially vertical standard having one end secured to said blade, a substantially vertical yoke arranged intermediate said standard and the rear end of the tractor and carried by said side bars, means for operatively connecting said yoke to the power lift of the tractor, a threaded collar pivotally supported on said yoke, a longitudinallythreaded rod in threaded engagement with said collar and having one end operatively connected to the other end of said standard, a handle on the other end of said rod for rotating the latter, and rearwardly inclined brace bars for attaching said yoke to said frame,

CHRISTIAN S. SKEEM.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name i Date 476,691 Shuart June '7, 1892 2,349,130 Allen May 16, 1944 2,415,156 Arps Feb. 4, 1947 2,428,857 Smith Oct. 14, 1947 2,440,550 Martin Apr. 27, 1948