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@at 9 394%. iv A w LELAND - ‘ r' 1 d M El PLOW 11 31 . ‘ 19 2 l 3 Sheets-Shae til ?ls?u 3, ma. ' A. w. LELAND ' PLOW ' Filed March 51, 1942 I - 3 Sheets-Sheet 2 it - 0cm 8, i945. - i A. w. LELAND ' 254,935 PLOW Filed March 31, 1942 ' 5 Sheets-Sheet :s 2,408,936 Patented Oct. 8,- 1946 NlTED STATES PATENT OFFICE 2,408,936 PLOW Alfred W. Leland,‘ Rockford, Ill., assignor to J. 1. Case Company, Racine, Wis., a corporation Application March 31, 1942, Serial No. 437,009 4. Claims. (01. 9'7—101) The invention of which the following is a de tailed description, relates to a light draft plow for use with tractors. Plows of this nature are generally arranged in a gang supported from a wheeled frame for adjustment and drawn by trac tors. The tractive e?ort required in farming has been found to be affectedmaterially by the draft 2 In carrying out my design it will incidentally be noted that the plow operates without clogging from accumulation of trash. Other objects of my invention will be apparent from the following description of the preferred form illustrated by way of example in the accom panying drawings, in which Fig. 1 is a perspective view of the improved light draft tractor plow; of the individual plow unit. By this is meant the resistance due to friction which each plow unit Fig. 2 is a perspective ‘side view of the rear develops in operation. ‘It has been a generally 10 plow and wheel; accepted view that plows operating in this man Fig. 3 is a perspective rear view of the said _ ner follow the design of individual or single plows developed and primarily adapted to be drawn plow and wheel; - Fig. 4 is a side elevation of the same; by horses. It thus follows that these individual Fig. 5 is a fragmentary plan view of the same; plows have landsides recognized as necessary in 15 Fig. 6 is a fragmentary perspective side view keeping the plow in the proper direction in the of the plow; Fig. '7 is a fragmentary perspective side View of furrow. I have discovered that a wheeled gang plow can the beam; be so designed and arranged that the individual Fig. 8 is a cross-section of the beam on the 20 plow units will cut straight furrows without hav line 8-8 of Fig. 7; ing to rely upon landsides. Accordingly I have Fig. 9 is a cross-section of the blade on the line designed an improved plow which is open on the 9—9 of Fig. 7 and side toward the unplowed land and may be used Fig. 10 is a side view of a modi?ed form of in combination with a wheeled frame, capable of beam and blade. doing everything required of such implements 25 As illustrating the preferred form of my inven and in addition being free from the customary tion I have shown a gang plow adapted to be hitched to a tractor or the like. The plow com landside. One object of my invention is to generally im prises generally a frame ll across the front of prove the construction and operation of imple ments of this class. _ 30 which is a cross bar l2. This cross bar has an adjustable trailer hitch It by which the gang One of the objects of my invention is to provide plow is drawn behind a power tractor. the beam of the plow with a downwardly and lat The front of the gang plow is supported upon‘ erally extending ?attened blade. This blade is an axle M which is bent at each end as indicated all that is necessary in order adequately to sup in Fig. 1 to support wheels l5, l5. Thebent axle port the moldboard and the plowshare when no 35 I4 can be rocked by means of rock arms l6 and landside is necessary. associated parts so that the plows may be lifted A further object of my invention is to design clear of the ground or in operative position al the beam of such cross-section as to provide the lowed to penetrate the desired depth. The link maximum strength and rigidity where needed age IB is controlled from hand lever IT. This is and at the same time provide for ?attening and 40 also a method of adjusting the depth of cut. , ?aring the rear end of the beam into an adequate Each individual plow unit includes a beam l8 support for both the moldboard and the plow of which three are shown. These beams are held at their forward end by the frame I! and share. Incidental to the above purpose it is also appar their rear portions are clamped by the cross-brace 45 ent that the beam and its blade may be either I9. Beam braces 20, 20 serve as spacers between a single integral element or alternatively the ?ar adjacent beamsj In this manner the beams are ing blade may be attached to the beam by any held in parallelism with their rear ends forming appropriate coupling element. a diagonal line with respect to the line of draft. A still further object of my invention is to Each beam carries a depending shaft 2| with 50 provide the plow unit, or the end unit in a gang, bottom yoke'22 in which is journalled a coulter’23. with a rear or furrow wheel so spaced as to re The rearmost beam carries a plate 24 by means lieve the plow unit from pressure against the side of which a rear tail or furrow wheel 25 is carried. of the furrow. . 7 The furrow wheel 25 is mounted on an axle or It is also an object of my invention to design spindle .26 which is carried in a bearing‘i'l. The the plow in such manner as to reduce friction 55 upper end of the axleziiis laterallyiadjustable at against the side of the furrow, replacing the usual 28 in accordance with the disclosure of the patent sliding contact with a rolling contact. 2,408,936 4 to Rutter No. 2,044,718, June 16, '1936, for the purpose which will be outlined. The bearing 21 A decided factor in obtaining improved results is of course the lateral adjustment of the rear wheel 25 as described in the above identi?ed pat ent to Rutter No. 2,044,718, June 16, 1936, which is subject to rocking adjustment on its mounting 29 in plate 24, to the extent permitted by the ad justable stop 30. Link 3| extending from the arm 32 and the axle 26 connects with the bell crank provides clearance between the cutting edge of the lever 33. The lever 33 is pivotally connected to While I have shown one form of my invention, it is to be understood that suitable changes in the form and arrangement of the several parts plow and the side of the furrow. a reach rod 34 the front end of which is coupled to the rock shaft M. In this manner when the shaft I4 is rocked to lower the plow units, the 10 may be made within the scope of the invention as rear or furrow wheel 25 is lifted to the extent de?ned in the following claims. permitted by the stop 30 to adjust the position of What I claim is: the plow. 1. A plow comprising a wheeled frame, a beam I have shown the beams I8 to be formed of on the frame having a twisted con?guration and rolled channel, steel or I-beam shapes. ‘ This pro vides the requisite strength and rigidity for draw 15 including a ?aring blade extending downwardly and laterally, a plate carried by the blade, a mold ing the plows. At their rear ends the I-beam shapes are ?attened into a flat blade 35. This board and a plowshare both mounted on the plate, said plow being open on the side opposite the plowshare, a furrow wheel, a wheel spindle, a bearing carried on the beam for journalling said spindle behind said plate, means to adjust the spindle laterally of the moldboard and means for blade is twisted downwardly and to the right to form a ?aring support. It is within the contemplation of my invention however, that the depending ?aring flat support— ing blade 35 may be used separately from the beam l8. As illustrated in Fig. 10 such a blade 35 rocking the spindle vertically. 2. A wheeled plow having a frame, a series of may be held in a socket member 38 mounted upon a tubular or other suitable beam 37. In this way the same result may be obtained of providing for channeled I-beams spaced by the frame, a cross brace spaced rearwardly from the frame for hold ing said beams parallel, beam braces between suitable carriage of the plow parts. adjacent beams, each beam having a twisted con In either modi?cation the signi?cant feature is ?guration and an integral ?aring blade extend that the use of the'blade 35 is suil'icient to carry 30 ing downwardly and laterally, plates on the the necessary plow parts and to eliminate the blades, a moldboard and a plowshare both car necessity of the so-called frog. ried on each plate forming a plow unit and a The blade 35 forms a support for a wide foun dation plate 33. This in turn carries a suitable wheel behind and offset from the end beam of the series. moldboard 39 above a plowshare Ml} These parts 35 3. In a wheel plow, the combinationof land are rigidly held together in the form shown in and furrow wheels and a frame carried by said Figs. 5 and 6. The angle at which the blade 35 wheels and including a plurality of plow beams, and plate 38 support the plowshare and mold each beam extending rearwardly for a predeter board is clearly illustrated in Fig. 5. Here it will mined distance substantially over and parallel be found that the common vertical cutting edge to a furrow wall being formed by the plow, said of the plowshare and moldboard is at a slight beams each having a portion curving downwardly angle to the line of the furrow as indicated in and then away from the'land, and said beams Fig. 5. The position and inclination of the fur having a twisted con?guration in the parts which row wheel 25 is also indicated. It may be said depart from the above mentioned direction par that the point of support of the rear wheel 25 is 45 allel to the furrow wall, said twisted con?gura in line with the vertical edge of the moldboard. tion providing a flared attaching surface dis From this relation it is apparent that the only posed at an angle to the direction of said fur part of the plow which comes in contact with the ‘ rows, a foundation plate attached to said attach vertical side or landside of the furrow is the cut ting edge, the plow bottom being open along this case with a landside. This arrangement of a light draft tractor plow provides the appropriate means for lowering the individual plow units into working position and supporting them rigidly by beams which are pe culiarly designed for the sole purpose of advanc ing the plowshares and moldboards in cutting the furrow and turning over the soil. By providing ing surface, a share and moldboard carried by 50 said plate, and a, tail wheel carried by one of said side as is apparent. The lateral pressure is taken by the rear wheel alone. Consequently there will be no friction on the side of the plow and no need for a landside. Also the rolling contact of the rear wheel offers less resistance than would be the 55 beams and disposed in position to support said frame against landward pressure by running against the wall of a furrow being formed by said plow. 4. In a wheel plow, the combination of land and furrow wheels and a beam extending rear wardly for a predetermined distance substan tially over and parallel to a furrow wall being formed by the plow, said beam having a portion extending downwardly and then away from the land, and said beam having a twisted con?gura tion in the part which departs from the above mentioned direction parallel to the furrow wall, the rear wheel 25 at an angle to or slightly offset said twisted con?guration providing ?ared at from the cutting edge of the plow, the contact of 65 taching surface disposed at an angle to the direc the latter with the landside of the furrow is tion of said furrow, a foundation plate attached avoided. It will be evident that there will be no to said attaching surface, a share and mold need to provide a landside or design a frog or board carried by said plate, and a tail wheel beam for withstanding the added friction and carried by said beam and disposed in position to draft resulting from a landside. It is thus pos 70 support said frame against landward pressure by sible to simplify the design both as regards the running against the wall of a furrow being beam and the support for the plowshare and formed by said plow. moldboard and to obtain marked improvement ALFRED W. LELAND. ‘inthe actual operation of the plow.