US1020888A - Plow. - Google Patents

Description

F. B. CRAVEN.

PLOW.

APPLIOATION FILED NOV. 10, 1910.

Patented Mar. 19, 1912.

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M, w w ,af m? UNITED STATES PATENT OFFICE.

FREMONT B. CRAVEN, OF GOLDEN CITY, MISSOURI.

IPLOW.

harrows having a frame adapted to be detachably secured to the frame of a plow and the object of my invention is to improve the' construction and increase the efliciency of harrows of the above described type.

consists primarily in a substantially triangular shaped frame adapted to be secured to the frame of a conventional plow and to extend to one side thereof, a harrow frame proper swinging in said supporting frame and positioned in a line transversely of the plow and spaced therefrom, and means for raising and lowering said harrow.

The invent-ion consists further in a certain construction, combination and arrange-j ment of parts and detalls as is hereinafter more fully described, particularly pointed out in the appended claims and illustrated in the accompanying drawings which show the preferred embodiment of the invention. In these drawings, which are attached to and form a part of this application :-Figure 1 is a top plan view of the complete machine. Fig. 2 is a side elevation thereof. Fig. 3 is a rear elevation. Fig. 4 is a sectional elevation taken on the line 44' of Fig. 1. Fig. 5 is an enlarged detail sectional View taken on the line 5-5 of Fig. 1.

Referring more specifically to these views, in which similar reference numerals designate corresponding parts throughout, 1 indicates the plow beam which, as shown, is

Specification of Letters Patent.

Application filed November 10, 1910.

My invention relates to improvements in harrows, and more especially to that type of Patented Mar. 19, 1912.

Serial No. 591,611.

in Fig. 2 has a vertical upper portion and a rearwardly curved lower portion,and in the ends of this fork is carried the axle S of a small pilot wheel 9. The upwardly extending portion of the pilot wheel fork, here designated as 10, is pivotally connected by means of a bolt 11 to a link 12. This link extends backward parallel to the beam and is pivotally secured at its rear extremity to a hand lever 13 pivoted at 14. to the beam 1. A toothed segment 15 co-acts with the manually operated latch 16 to retain the hand lever 13 in any position in which it may be set. The lower end of the hand lever 13 is extended beyond the pivot point and in its extremity, here designated as 16, is pivotally mounted a second connecting link 17 which 1 extends forwardly and is secured to the up- With this object in view the invention;

per end 19 of the cutter hanger 20, which hanger as shown at 21 is also pivoted on the bolt 6. At the lower end of the hanger is secured a cutter 22, which as shown is of the conventional type and may be adjusted angularly by means of a reduced and threaded end portion 23 which extends through an aperture 24 in the hanger 20 and is locked in any desired position by a conventional lock nut 25.

It will be seen from the above description that by swinging the hand lever 13 rearwardly the pilot wheel 9 will be caused to elevate the front end of the plow beam, while at the same time the cutter 22 will also be elevated.

Above the landside a laterally extending arm 27 is positioned, said aim being secured to the plow beam at the point 28 by means of a bolt 26. At the outward extremity of the arm 27 a tie rod or brace member 29 connects the same with the front end of the plow beam, this connection being made by the bolt 6 previously mentioned. Referring to Fig. 3 of the drawings, it will be seen that the extremity of the arm 27 is bent clownwardlv, as at 31, and through the L section thus formed a square aperture 32 is forged. Adapted to slide within this aperture is a knuckle member 33, and it will be seen that the same may be readily clamped in a given position in the aperture by means of a small set screw conventionally shown at 3 1'. The lower end of the knuckle member is formed with an enlarged cylindrical portion 35 in the end face of which are formed the radial teeth 36. A spindle 37 has an upset or enlarged end 38 formed with similar teeth, and by means of a nut 39 or any other suitable fastening means the two sets of teeth may be held in engagement to prevent rotation of the parts relative to each other. The spindle 87 above mentioned serves as an axle for a bearing wheel, conventionally shown at 40.

Disposed oppositely to the bearing wheel frame above described is a harrow supporting frame generally designated as 41 and comprising a downwardly inclined lateral member 42 which is secured at the point 28 by the same bolt 26 which serves for the at tachment of the bearing wheel frame, and a brace or strut 43 symmetrically placed and secured at its front end to the plow beam by the bolt 6. A bracket 45 on the end of the inclined member 42 carries the spindle 46 of the small bearing wheel 47. Depending from the strut 43 and secured thereto is a pair of hangers 48 from the lower end of which is swung a triangular harrow frame 49, the rearwardly extending portion of the frame being supported by a connecting link 50 which is pivoted to the bell crank end 51 of a hand lever 52. This hand lever swings about a pivot 58 secured to the inclined transverse member 42 and is angularly adjustable by means of a segment and latch, conventionally shown at 54. It will be seen that by swinging the hand lever 52, the harrow frame 49 may be elevated or lowered so that the harrow teeth, here designated as 55, may be adjusted for depth or raised completely above the furrows. A seat, conventionally shown at 56, is secured to the bearing wheel frame bar 27. In case it is undesirable for the operator to occupy the seat, he may walk behind the plow and guide the same by means of a handle or the like here shown conventionally at 57.

In the operation of the implement, tractive force is applied to the front of the plow beam and by means of the lever 18, the plow-share and cutter are adjusted to a suitable depth, the harrow frame being at the time elevated above the ground level. When one or more furrows have been cut, the harrow may be dropped so that the teeth will engage the furrow, and referring to Fig. 1 of the drawings, it will be seen that these teeth are arranged in two sets, the forward set being disposed at about the width of two furrowts from the landside, while the rear set is at a distance of about one furrow so that the latter will operate in a given furrow during one traverse of the plow, while on the next traverse, the former will operate in the same furrow, thus subject-ing each furrow to two harrowing operations. When it is not desired to use the harrow, the same may be elevated into an inoperative position or the harrow supporting frame may be completely removed by detaching the struts 43 from the bolt6 and the inclined member 42 from the bolt 26. The implement maythen be used either as a simple plow or as a combined plow and harrow, or it may be manufactured and marketed in either of these forms. The landside bearing wheel 40 may be angularly adjusted to overcome the tendency to transverse movement engendered by the plow, or as it is commonly described, to hold the same to its furrow.

It will be seen from the above description that I have provided an agricultural implement of this class which is of a simple and sturdy construction and is largely made up of standard elements. The moving parts are all readily accessible for adjustment or replacement, and particular attention is directed to the method of construction which permits of the detachment of the main bearing wheel frame or harrow supporting frame or of both by the removal of two bolts, and it will be seen that no special equipment of tools is required in assembling or dismantling, nor is any skilled labor necessary for accomplishing the same.

What I claim is 1. In a machine of the class described, in combination, a plow beam and a plow secured thereto, a bearing wheel frame extending outwardly over the landside, a bearing wheel secured in said frame, a harrow supporting frame detachably secured to said plow beam and extending outwardly over the mold side, a second bearing wheel carried by the outward extremity of said harrow supporting frame, a harrow frame pivot-ally secured to said harrow supporting frame forward and rear sets of teeth secured in said harrow frame, and means carried by said harrow supporting frame whereby the rear set of teeth may be raised from the ground while the forward set is still in active position.

2. In a machine of the class described, in combination, a plow beam and a plow secured thereto, a harrow support-ing frame detachably secured to said plow beam, a bearing wheel carried on the outward extremity of said harrow supporting frame links depending from said harrow supporting frame, a harrow frame hingedly connected by its forward portion to. said links, a hand lever pivoted in said harrow supporting frame, and a link connecting said hand lever with the unsupported end of said harrow frame, whereby the same may be adjusted angularly with respect to the harrow supporting frame.

3. In a machine of the class described, in combination, a plow beam and a plow secured thereto, a transverse member attached to said plow beam and extending outwardly over the mold side of the plow, a strap con- FREMONT B. CRAVEN.

necting the outward extremities of said transverse member with the forward end of the plow beam, a bearing wheel carried by the outward extremity of said transverse member a harrow frame hingedly secured to said strap intermediate its length, a hand lever pivoted on said transverse member, and a link connecting said lever WVitnesses GEO. H. CHANDLER, Jos. H. Bmoxwoon.

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

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