US630139A - Harrow. - Google Patents

Description

Patented Aug. l. I899. G. VAN SICKLE.

HABROW (Application filed Jan. 10. 1898. Renewed Feb. 2 1899.,

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UNirnD STATES PATENT OFFICE.

GARRETT VAN SICKLE, OF SHORTSVILLE, NE? YORK.

HARROW.

SPECliFICATION forming part of Letters Patent No. 630,139, dated August 1, 1899.

Application filed January 10, 1898. Renewed February 2,1899. Serial No. 704,304. (No model.)

To aZZ whom, it rnay concern.-

Beitknown that I, GARRETT VAN SICKLE, a citizen of the United States, residing at Shortsville, in the county of Ontario and State of New York, have invented certain new and useful Improvements in Harrows; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to harrows, and particularly that class known as floating harrows; and it consists, essentially, of oppositely-situated frames carrying spring barrow teeth which are movably attached at the opposing inner edges and have mechanism in connection therewith for raising and lowering the opposite frames to regulate the depth of penetration of the harrow-teeth.

The invention further consists of means for attaching the draft devices which are so arranged as to permit the opposite frames to have free movement and at the same time insure an equal distribution of the power applied by the draft-animals.

The invention also further consists of the details of construction and arrangement of the several parts, which will be more fully hereinafter described and claimed.

The object of the invention is to improve a harrow of the class set forth to such an extent as to render it more positive in its action, as well as sensitive in its application, and wherein the parts are strong and durable, easily and readily operated, and comparatively inexpensive in the cost of manufacture.

In the accompanying drawings, Figure 1 is a perspective view of a harrow embodying the invention, showing it arranged for use. Fig. 2 is a section through the center of the harrow or between the two frames thereof, looking in the direction of one of the latter. Fig. 3 is a detail plan View of one of the crankaxles, showing a wheel thereon.

Referring to the drawings, wherein similar numerals of reference are employed to indicate corresponding parts in the several views, the numerals 1 and 2 designate oppositelysituated frames which are similar in construction and have cross-bars 3 intermediate of the length of the same and also a closed front end and rear end. The cross-bars and the rear end of each frame, as shown, support a series of spring harrow-teeth 4, and in the frames adjacent to the rear ends thereof journal-boxes 5 are located and, have crankaxles 6 rotatably mounted therein, with the crank ends of each projecting forwardly and having thereon wheels 7, which are located in the bodies of the frames and between adjacent harrow-teeth. The opposite ends of the crank-axle project inwardly from the innersides of the opposite frames 1 and 2, and each has a yoke thereon, one of which is smaller and pivotally engages the other through the medium of a removable bolt 8 to thus provide a swiveled joint. On one of the crank-axles a shifting-arm 0 is fixed and extends rearwardly, having its upper end bent at an angle and also formed with a slot 10 in the body of the same. On the side of the adjacent frame 2 a toothed sector 11 is rigidly fixed and is engaged by a spring-actuated dog 12, havinga bent end projecting-through the slot 10 in the arm 9 and movable through an apertured lug 13, also fixed to the said arm 9. By operating the said dog the degree of adjustment necessary can be sustained. Connected to the front portion of the arm 9 is a connecting-rod 1 1, which projects forwardly and is movably attached to the rear arm of a bell-crank 1ever 15, the latter being strengthened by having a brace-rod extending from the end of one arm to the other, as at 16. At the inner front portions of the adjacent sides of the opposite frames 1 and 2 stub-shafts 17 are mounted and have yokes 18 thereon, one of which is smaller than the other and in pivotal engagement through the medium of a movable connecting-bolt 19,this beinga structure similar to that heretofore set forth in connection with the crank-axles and for the same purpose. The pivot-bolt 19 also passes through a boltsocket 20, formed at the juncture or angle of the two arms of the bell-crank lever 15, which projects into the yoke, and thereby the said bell-crank leveris supported. The front arm of the bell-crank lover is also formed with a socket 21, in which is rotatably mounted a post 22, having a lower yoke 23, in which a wheel 2i is rotatably mounted. The front portions of the frames 1 and 2 are tapered outwardly from the inner sides, leaving a space for the operation of the wheel 24, and

the mechanism as thus far described is so applied and movably connected as to make the opposite harrow-frames very sensitive to automatic adjustment and institute a floating operation. As a further auxiliary to this sensitive adjustmentthe outer corner of each of the frames 1 and 2 at the front has the rear end of a curved draft-bar 25 movably attached thereto and the front end of each of the same connected to an eye or ring 26. The inner corners of the front portions of the said 'frames also have shorter draft-bars 27 movably connected thereto and also run to the eye or ring 26. The draft attachments are applied to the said ring 26, and it will be observed that the power is equally distributed on the two frames by this arrangement.

During the operation of the harrow, or While it is traveling over the surface of the ground or before commencing work, the depth of penetration of the barrow-teeth may be regulated by moving the arm 9 over the toothed sector 11, and both of the crank-axles and the wheels thereon, as well as the front wheel,

will be uniformly adjusted. Furthermore, it

will be seen that the frontwhee'l has a turning action or pivotal movement, which will be of great advantage in drawing the harrow around or turning the same.

The harrow, as set forth, may be employed upon level surfaces or hillsides, or both at one and the same time, a part of the harrow occupying the level and the adjacent portion a rise or hill, and, furthermore, through the sensitive adjustment of the several parts any inequalities of the surface being operated upon will be automatically compensated for.

Many advantages will appear from time to time to those using the improved harrow, and it is obviously apparent that changes in the proportions, form, and minor details of construction might be made and substituted for those shown and described without in the least departing from the nature .or spirit of the invention.

Having thus described the invention, what is claimed as new is 1. In a harrow, the combination of two adjacently-positioned frames carrying harrowteeth, swivel connections between the two frames, and ground and steering wheels operatively connected with saidswivel connections and adapted to be simultaneously adj usted, substantially as described.

2. In a harrow, the combination of two adjacently-situated frames carrying harrowteeth, crank-shafts mounted thereonswivel connections between the shafts and frames, ground and steering wheels adjustable through said swivel connections, and a series of draft-bars movably attached to the front of each of said frames and running to a common draft center in alinement longitudinally with the swiveling-wheel, substantially as described.

3. In a harrow, the combination of two adjacently situated frames carrying harrowteeth, crank-axles mounted in the rear portions of the said frames and having wheels on their outer ends, and a swivel connection at their inner ends, a swivel connection between the front portion .of the frames supporting a bell-crank lever, a front wheel laterally adjustable in the forward-portion of the bell-crank lever, and means for simultaneously adjusting the crank-axles and the front wheel, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

. GARRETT VAN SIOKLE.

Witnesses:

W. O. BRADLEY, J O. BROPHY.

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