US1241530A - Plow. - Google Patents

Description

A. C. LOVELL.

- PLow. y APPLICATION FILED MAR. '28.11 91 2 SHEETS-SHEET l.

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v Patented Oct. 2,1917.

`AT c. LOVELL.

PLOW.'

APPLICATION FILED MAR. 28. 1917.

Patented oet. 2,1917.

2 SHEETS-SHEET 2.

narran erarss ramener onirica.

ADELBERT c. LovELL, or iviceoMB, oHIo.

PLOW.

Application filed March 28, 1917.

To all 'whom 515 may concern.'

Be it known that I, ADELBERT C. LovnLL, a citizen of the United States, residing at McComb, in the `county of I-Iancock and State of Ohio, have invented certain new and useful Improvements in f Plows, of which the following is a specifica-tion.

This invention relates to plows, and is particularly directed to a type of structure wherein the corners of a plowed field may be kept in a uniform condition.

lVhen rounding` a corner, my structure is designed to make the yturns so that all of the turns are of the same radius as opposed to being concentric with each other. There all of the turns are of the same radius, there is necessarily a wider space between the two curves than there is on the straight way course, and it is to this end that my invention ysupplies a structure for also plowing this excess corner ground. To attain this, I have so arranged my structure that a noi'- mally idle plow follows the furrow wheel, this furrow wheel being mounted to be movable outwardly during the act of rounding a Y corner or making a curve which permits the idle plow to come into operation to plow the additional ground thus exposed.

A further object of my invention resides inl a structure whereby, when the furrow wheel has moved out a predetermined distance approximately equaling the width of an additional furrow, the steering angularity of the land wheel is altered to prevent any further excess ground being directed t0- ward the plows.

Other objects of my invention will appear in the following detailed description of the accompanying sheets of drawings, wherein similar characters of reference ldesignate corresponding parts, and wherein:

. Figure 1 is a top plan view of a wheel plow embodying my invention,

Fig. .2 is a side elevationv of the structure shown in Fig. 1,

Fig. 3 is a top plan view of the axle portion of the structure shown in Fig. 1, but showing the furrow wheel moved outwardly its full limit of movement and also showing the steering angularity of the land wheel as changed,

Fig. 4 is a detail sectional View of the manner of connecting certain of the parts, and

Fig. 5 is a section taken approximately on line 5-5 of Fig. 1.

Specification of Letters Patent.

tion.

Patented Oct. 2, 1917.

serial No. 158,093.

front ends by means of the tie piece shown at 7. The beam l, at its rear, carries a rearwardly projecting member 8 to which the rear wheel 9 is connected. |Ihis main framework also includes an axle 10 from which the plow beams are supported by means of the bent pipes or rods 11 and by means of vthe upwardly projecting finger 12. In this manner, a rigid structure for supporting the plow bladesis formed, the manner of attaching the pipes l1 with the axle being shown in detail in Fig. 4, wherein two ordinary T fittings 13 and 14 are joined by means of the connecting nipple shown at 15.

The description thus far is common to most types of tractor ,plows and in order to adapt it to my invention, I have provided a furrow truck 16 which is slidablymounted upon the axle l0 and whose normal position is directly in front Mof the additional plow blade 4. As the plow is pulled through the field, the furrow truck rides in the last furrow, thus rendering the jplow blade 4 idle while the remaining blades 3 cut a pairof additional furrows. When a curve in the previously curved furrow or a corner is reached, it is the intention to keep the radius the same instead of concentric. The distance between the last furrow and the new furrow on the curved portion must, therefore, be greater than the corresponding distance on a straight way course. It is at this time that the idle plow 4 comes into opera- The furrow truck 16 is designed to follow in the furrow and as the curve is reached, this furrow truckis pulled outwardly, which permits the idle plow to become effective. lVhen this furrow truck has reached the limit of its outward movement, which is equivalent to the width of a furrow, the connection between the furrow wheel and the land wheelv becomes effective to change the steering angularity ofthe land wheel to prevent the furrow truck from coming out of the furrow.

In Figs. 1, 2 and 5, I have shown the construction of this furrow truck as comprising a pair of wheels 17, although it will be understood that this is only my preferred construction and that it is not absolutely essential to have two. These two wheels are connected on one side by means of a U-shaped member 18 onto the legs of which the wheels are journaled and a connecting piece 19 on the opposite side ofthe wheels. Onto the U- shaped member 18 there is rigidly connected a roller carrying bracket 40 formed in sections and bolted together as is shown at 20, the roller 2l being supported therein to roll in connection with the axle l0. Upon the opposite side of the truck, there is also located a bracket member 22 which rotatably carries a second roller 23. In this manner, the furrow truck is slidably mounted in connection with the axle. The opposite end of the axle carries a land wheel 24 which is pivotally-mounted in connection therewith by means of the knuckle joint shown at 25. However, this land wheel is permanently mounted in connection therewith as far as,

any sliding movement is concerned, the only movement permitted it being a pivotal or a steering movement. f

The amount of outward movement of the furrow truck is governed'by means of the collar shown at 26 which collar is slidably mounted upon the axle and is connected to the furrow truck by means of the rod connection shown at 27. The supporting fitting 13 is located upon the axle a distance to limit the outward movement of the collar 26 a distance equaling the width of a furrow and in order to automatically return the furrow truck after the corner or curve has been passed, I have provided the spring 28. This spring 28 is secured to the plow beam 1 at one end and to a lever 29 at its opposite end, this lever beingl preferably hinged as shown at 30 and being pivotally connected at its opposite ends to the pipe support 11 and collar 26 respectively. Thus, when the furrow truck leaves the curved furrow, the spring 28 acts to pull the truck toward the land wheel and its limit of movement is governed by the hub 31 of the supporting finger 12.

In order to change the steerin angularity lof the land wheel 24 when the urrow truck lhas reached its outward limit of movement, I have' provided a lost motion connection between the pair ofrods 32 and 33 connected an adjustable collar shown at 38. Thus as the furrowV truck moves outwardly agamst the tension of the spring 28, it pulls the collar 26 with it, thus causing a sliding engagement between the two rods 32 and 33. When the head 37 of the rod 33 engages the collar 38 on the rod 32, the link 34 is caused to move about its pivot. This in turn causes the arm 35 which is rigidly connected with the land wheel, to move about the knuckle pivot 25 because of the link connection 36. In this manner, afterV the truck has reached its outward limit of movement, the steering angularity of the land wheel is altered to cause the plow as a whole to move in a circular direction independent of the draft thereon. After the'corner has been rounded, the spring 28 acts automatically to retract the plow truck and during this action, the lost motion rods 32 and 33 are again made to telescope until finally the head 37 on the rod 33 engages the link 34 and, assisted by a spring 39 the parts again return to the position shown in Fig. v1, wherein the land wheel is headed in a straight forward direction. At this time, the plow blade 4 again runsidle, it beinm directly in rear of the furrow truck ancI therefore, ruiming idle in the furrow cut on the preceding trip.

From the foregoing description, it will appear that I have provided a structure of considerable utility wherein the furrow truck 16 is caused to automatically move outwardly upon its axle l0 to permit the normally idle plow blade 4 to come into play. This low blade 4 only operates at vthe time the p owis rounding a corner or making a curve and operates each time the furrow truck moves outward upon its axle. This outward movement is caused primarily by the truck following in the furrow cut on the preceding trip and after the corner or curve has been passed the spring 28 acts to again retract the furrow truck to its normal position.

`What I claim, is:

1. A vwheel plow n comprising a main framework, a plurality of plow blades mounted thereon, a land wheel permanently mounted in connection therewith, a furrow wheel mounted in connection therewith capable of lateral movement, one of said blades being located directly in rear 4of said furrow wheel when the latter is in its normal position and being effective only when said furrow wheel is moved outwardly.1 2. A wheel plo-w comprising a main framework, a plurality of plow blades mounted thereon, a land wheel permanently mounted in connection therewith, a furrow wheel mounted in connection therewith capable of lateral movement, one of ysaid blades being located directly in the rearl of said furrow wheel when the latter is in its "when said furrow wheel is moved outwardly, and means operated by the said furrow wheel when it has reached the limit of its outward movement for altering the steering angularity of said land wheel.

4. A wheel plow comprising a main framework, a plurality of plow blades mounted thereon, a land wheel permanently mounted in connection therewith, a furrow wheel mounted in connection therewith capable of lateral movement, one of said blades being located directly in the rear of said furrow wheel when the latter is in its normal position and being effective only when said furrow wheel is moved outwardly when a curve in the furrow is encountered, and means for automatically returning said furrow wheel to its normal position when the curve in the furrow is passed.

5. A wheel plow comprising a. main framework, a plurality of plow blades mounted thereon, a land wheel permanently mounted in connection therewith, a furrow wheel mounted in connection therewith capable of lateral movement, one of said blades being located directly in the rear of said furrow wheel when the latter is in its normal position and being effective only when said furrow wheel is moved outwardly when a curve in the furrow is encountered, and spring means for automatically returning said furrow wheel to its normal position when the curve in the furrow is passed.

6. A wheel plow comprising a main framework, a plurality ofv plow blades mounted thereon, a land wheel permanently mounted in connection therewith, a furrow wheel mounted in connection therewith capable of lateral movement, one of said blades being located directly in the rear of said furrow wheel when the latter is in its normal position and being effective only when saidf'urrow wheel is moved outwardly when a curve in the furrow is encountered, spring means for automatically returning said furrow wheel to its normal position when the curve in the furrow is passed, and means operated by said furrow wheel when it has reached the limit of its outward movement for altering the steering angularity of said land wheel.

7. A wheel plow comprising a main framework including an aXle, a plurality of plow blades mounted on said framework, a land wheel pivotally mounted on said axle, a furrow wheel slidably mounted on said aXle,one of said blades being located `directly in the rear of said furrow wheel when the latter is in its normal position and being effective only when said furrow wheel is moved outwardly, a lever connection between said furrow wheel and said framework, a spring between said lever and said framework normally urging said fur row wheel to its normal position, and a connection between said furrow wheel and said land wheel to alter the steering angularity of said land wheel when said furrow wheel has reached the limit of its outward movement.

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

ADELBERT C. LOVELL.

Witnesses:

R. A. ROETHER, H. W. STOKER.

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

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