US1667374A - A cobpobation of new jebsey - Google Patents

Description

S. K. DENNIS April 24, 1928 CULTIVATOR Filed Nov. 12, I92] 4 Sheets-Sheet l I I 72116 @011 50012, ueZ K1767? nip,

S. K. DENNIS Api'il 24. 1928.

CULTIVATOR Fied Nov. 12. 1921 4 Sheets-Sheet 2 Invev ezor.

S. K. DENNIS A ril 24, 1928.

CULTIVATOR Filed Nov. 12, 1921 4 Sheets-Sheet 3 w mfl 0w K April 24, 1928.

S. K. DENN!S CULTIVATOR Filed N 12, 1921 4 Sheets-$heet {1 I 1 72 11626503 ganzzwl Kfienndp, I

Patented Apr. 24, 1928.

UNITEDQSTATES 1,667,374 PATENT o -c z.

SAMUEL Ki IJEivNIs, or CHICAGO, ILLINOIS, ASSIGNOR TO.I1\TTEBN"ATIONAL ,HhR-,

VESTER COMPANY, oFoHIoAGo, ILLINOIS, A CORPORATION or ivEwJEnsEY.

CULTIVATOR.

Application filed November 12; 1921. Serial No. 514500.

This invention relates to wheel cultivators of the two-row type. The objects of the invention are to provide a cultivator of that type with guiding means and with beam shifting and adjusting means of simple and economicalconstruction which will enable the driver seated onthe machine to quickly and easily-change the distances between each pair of beams and also shift them while guiding the-cultivator and to provide Control mechanisms therefor which permit the beam shifting and the cultivator guiding or steering means to be coupled for ointoperation while retaining separate con trol of the beam adjusting mechanism, and

also permit disconnection of the guiding means from the beam shifting means when desired. A further object of the invention isto provide a joint lift: for each pair of beams which has means for equalizing the pressure on each beam. l 1

The foregoing objects are accomplished by providingv the cultivator with swiveled wheels and mechanism for jointly steering them, and by suspending the beams on latt ing supporting bracket for the beainshifting llieaIlSpWliiCli bracket carries latch mechanism of novel form through which the beam control mechanism can be connected or disconnected from the wheel steering or guiding means. v I

lVith these main and other supplemental objects in view, the invention consists of the organization and details of construction set forth in the following description and defined in theclain s.

Referring tothe drawings- A Fig.'1.is a side elevation of a cultivator embodying my invention. I

Fig. 2 is a plan view. r i

Fig. 3. is a: detail view of the crossed arches whichcarry the beams, taken substantially on line 33of Fig. 2. I Fig. 4 is a detail side View on an enlarge scale of parts of the operating mechanism is: wearing b shifting means.-

Fig. 5 is a sectional view on line 5+5 of Fig.4. j Fig. 6 is a detail view of the bell crank levers forming part of the beam adjusting means.

Figures 7, 8 and 9 are similar plan views I of thesliding latch for connecting and disconnecting the beams and" steering means, each figure showing the latchin adiiferent position.

Figures 10 and 11 are plan and side views on an enlarged scale of theslidiiig latch ele ment and Figures 12 and. 13 are similar views of the latch holding element.

My invention is shown asembodied in a two-row cultivator having a main rectangular frame 20, the rear of which is formed, .by an axle beam 21, on the ends of which are journaled in any suitable manner aiiles 22 on which are carried the wheels23. Each "front of the frame has a'projecting arch port-ion 25 securedthereto to tlieforward end of which is secureda' sleeve 26. in which .is joui'naled the upright standard of a front truck 27, supporting the front of the frame. A draft pole or tongue 28 is pivotallyconnected to the sides of thisarcl as shown in Fig. 2, and-the forward end of tlie frain e is made vertically adjustable by means of a lever 29 pivoted to tliesleeve 26in tlie inanner shown in Fig. 1 and connected by link '30 to a collar 31, which is held between abutments on the standard of the truck. The

other end'of the lever 29 is connected by a link 32 to a hand lever 33 on the rear of the frame. It will be evident, thatby reciprocation oflink 32 the, front of the "frame will be raised and lowered on the truck to a sufiicient degree toprovide depth adjustment for the forward ends of thegangs.

A transverse frame liar 34to which the arms of the arch 25 are secured 15: provided intermediate the front and rear fraine i eiin hers andthe cultivator beams 35 are suspended froin the frame on pendulum rods 36, the two outerrods being liung on the connected to the frame through downwardly llU and forwardly extending pushbars 37, these bars being pivoted on the-wfra i e on an as f upi iii U5? and l.

oblique niii 4t 38. The beanie are coni nected to each other and to the supporting elelnentg; nd by lneans of crossed are; members 39 3 these members benig forni'd ofsingle birrs orrod with their innerlegs projecting inwardly so thatthey n ni'dlj projecting downwardly curved port i o n' 4lt provided itl obliqnely extending aperttu'els, 41 419, in which ere loosely rcd thefbent ends of the supporting rods -itilnjd; 37 1cs pe beet seen in Fig. 1. By the constrn ction"obove described the (r roggcd nrch members 39 are suspended from thelnriir friiin e in a i'i'n zinnir to permit Y c it lateral, swinging n oi'en ient; either idiniduziily or jointl y', and the 1s of coiirs e win" follow tlie n'iovenients tl ie zii'chcd members, As controlling in chz'i iiini for thc- 'Qai'che'd members, each :i hoe v ned the'reto re'giiWzirdlj projectp1ite 42; the" nd olf'iv'hich is' provided h a ri atepeii ine' of wliich refce iifes a'ii ardly e" ending rod 43 which rods 7 hipife' their drnciflendg connected 1 to boil ernifli lei r "44 jii hich fii -edfiuntbd between bit ckt 1niinbers 45 fiired to a forwardly extending 5111971) megbmcketis pivotally niount'e'dflt jon'tlie axle beam 21 of thefrzi inel The' b'elll crank levers 44 are posit-i ned ith their inner arms directed toward each amen ed; forined into zircua'te reicks 44?; with which the niehes tyre-ck 47 on the e reciprocating rod 47% xi hichhns its othlfl fitl. cofi fiectecljto ano'ctniiting hontl 4 i of the inc.

thatiby' na- 1" 4? the bell on d I throngh v hers will beiniired v oinhiiif-h ot cr and the s ihce' betwo n ne cnltiva egains correspondint'ly brdclf t thei' e is pivoted :i T- leVe1f'4Q,' tl 1e long mini of which is I \iwirdliy directei'l and its 1 slotted at'FI-S" for en} n eiit' fviih a hiding stmfl 50 on the radius bar 244 e 'oi t arms of: theT-shziped hirer are coiinec d1 V which v ed" t c) giiid cnlti} Porting bfr'a'cltet 46 extends forwardlybcnez th the long; aim ot'lclver 49 and acros its pivot Witlrthc ridiiis bar and on thenpper face of said portion 01 bracket 46' there is slidibl'jfmonntedn hitch member 54 Tiiielz'itch member is provided with depending front and rear lugs 54 on each edge to'retain it on bracket 46 and its forward end is provided Withn thickened portion 54 which lia'ii forwardl extending hp 54 corresponding in shape to the end of the body of the latch n-len'ib'r and spaced 'tlieretiimnto provide :11 horizo'ntiilly extending notch or slot 54 and the opposite end of the tlli'cliened portion i piovided \i i tl'f a veif'iimil slot or notch 54 Theiear endof the body m: tion of l51tch54 is formed withtraimversc notches or corrugations 54 and, with a, hiter zilly extending nigger 534 The hitch 54 czti'ries' {L com 'iemcnml lo'ckin member 55,

tIieJinCleL" surface of which is 'lorn'ied with a tooth 55 for-e1 ment with the corrugntions 54 of latch member 54. Member 55 iS tllfiO provided with a rounded ledge 553 at its fawn-d end and a baclntai'dly extendingtrigfge1fl55? at item-ear end. Mein'l 5'5 tnre 5 inli'iienlber 55, the triggers 54 and we 05 servingtn holders while the il'CljllStlHQllli of liit'ch 54ig being; made and the ledge 55" serving to'retain pin 5'0 lnnotch 54; The

main 11mm ofthe cnltiv zitor has "ltherei to iii any suitable manner a fiat a'rcua'te bin.

.58 which is concentric to the pivot 44 of bracket 46, Which bar is ip os'itioiiedto be engaged in the clot or notch 54 of hitch nieitilier 54gas'shown in Fiiitire 4, thereby mwdirignsupport for the forw rd end of no b1, clzet thelitch inen'iher 54 ridc on this bir n all posltlons of atljlistinent. The

zircutite bar 58'isi provided at its center with a notch 58 (Fig. 4") intended for interlock} ing engagement in one position of tidj'usrn5 inent with tpifojection oi 'tiootli 54 Within the notch 5450f thelzitch nicnibe'r 5-4. Vith the hitch member-e 54 zind assembled on bracket 46, a ail/wove dz @iib'ctl. and the latch inen'lher 54 slidably c will be seen thii't .liitch member 54 can be ntljnsted in a loiigiitl'zdimiil directioi'i on bracket 46 by rclcasin lni'nd wheel and sliding hitch backward oi' forwiujd and :e of its foiiiii and r'elzitionto notch 48" i1 iiil" 5O (lepelndiii'g from radi'ns bar 4 it be ndjntd bgi'clrwzirdly to zr osition vvill' engage stnd BOQtheret 46 ind the h m ghifttflg to the sf teii n y eeli connectmns means, or Rim;

by full forward adjustment the tooth 54 canbe madeto interlock with the notch 58%, thus releasing the beam shifting connections from the wheel steering means and locking the beams against joint lateral movement. It will also be seen thatwhen the latch is adjusted to ahalf way point, as in Figure 8, the beamshifting mechanism will neither be lockedagainst movement nor locked to the steering means and the beams can beleft to float freely by releasing lever 47".

The wheel steering means, above de scribed, including the radiusbar 24 and the beam shifting devices including the crossed arches39, together witlrthe means for effect- .ing simultaneous or independent control of these devices, constitute a unitary organim tion which isthebasis for a substantial part of applicants present contribution to the cultivator art. These devices provide for the accomplishment of the spreading of the 7 pairs of cultivator beams, holdingthe beams rigidly spaced during the operation of the cultivator and laterally shifting the beams by means of unitary connections between the upper front part of the cultivator frame and the forward ends of the beams. The crossed arched structures 39 form these unitary connections, combining .in their functions a number of different improvements. By reason of the fact that the vertical supports 36 and 37 for the cultivator beams are, of

themselves, free to swing laterally, the

arches 39 constituting substantially the only means for properly controlling such swinging movement and holding the beams suitably rigidly spaced during operation of the cultivator. These arches also provide supports for the forward ends of the cultivator beams by reason of their horizontally extended ends. Furthermore, by mason of the fact that the arches are crossed, relative movements of the arches in opposite directionsby'the controlling mechanism above described give corresponding spreading movements of each pair of cultivator bean'ls. Again, by reason of the fact that the controlling mechanism for the arches allows the latter tobe moved in the same lateral direction in unison, all of the cultivator beams may be shifted'in thesame direction simultaneously. The controlling mechanism for the arches is operatively associated with the cultivatorsteering meclninisu'i so that the beams may beisl'lifted' optionally. either simultaneously with the steering "of the wheels, or independently thereof, Thus, the applicant has provided a two-row pluralbea m pivot-axle cultivator having arched structures acting upon the forward emls of the beams to accomplish the various above describedresults in'an improved and advan tageous manner. I As meansforelfecting vertical adjustment of each pair of beams and for applylng re-.

out of contact with struts 62 silient pressure to each pair of beams there is provided an adjusting lever. 59 fixed to a stub shaft 60 journaled on the frame, which shaft has a forwardly extending crank arm 61 fixed thereto, the end of which is provided with laterally extending pins 61* and anupright post 61 On this post there is slidably supported an equalizer bar 62 preferably of trussed form and provided with transverse struts or braces 62 which are positioned to engage the laterally extending pins 61 The ends of. the equalizer bar are connected tothe beams of. each .pair by links 63 and onstandard 61 above the equalizer bar there is mounted a compression spring (vlwhich bears on a disk 65 resting on the equalizer bar. l/Vith this construc tion an equal pressure is imparted. to each beam during normal operation as spring (tl is then'comprcssed and the pins 61 will be When the beams are being raised the pins 61 engage the struts 62 and the equalizer bar and beams will be evenly raised.

lVith the construction and arrangement of guiding andbeam adjusting mechanism above described it will be evident that a cultivator has been provided in whichthe steering or guiding means may be used alone by moving latch 5a to a forward position and iflatch 54: is moved to its farthest ex tent, as in Fig.9, that the beams will be held against lateral movement inunison and also thatthe guiding means and joint beam shifting means maybe locked together by moving latch 5st backwardly into engage men't Withstud 50, as inFig. 7. It will also be evident that whateverthe position of adjustment, the bell "crank lovers 4% will not be affected andthat the adjustment of the beams of each pair to and from each other can be "made irrespective. of whether shifting means ornotm j lVhilea specific embodiment of my invention has been described by way of example, it is to be understood that variations in the construction are contemplated within the scope of the following claims.

Iclaim as my invention: a

'1. The combination with a cultivator having swiveled wheels provided with steering cranks and laterally shiftable beams, of operating mechanism for the/wheels and beams comprising a radius bar ronnecting .the wh el cranks; a horizontally positioned lever the steering means is lockedto thebeain with one end pivoted on the frame andthe other pivoted to the radius bar and; extend ing at rightanglesthereto, means for swinging said lever to steer the wheels, a. laterally swinging bracket pivoted on -the framein longitudinal alignment with said lever and extending across its point of connection to the radius bar. an arcuate bar fixed to the frame concentric with the pivot of said loo bracket, a stud extending from. the radius bar at its pointofconnection to saidlever, and asliding latchmounted on said bracket and having. a portion rcstingon the arcuate bar, said latch beingipositioned between said bar and stud and-provided with opposite engagingportions adapted to be interlocked with the stud or bar'alternatively. 2. The combination with a cultivator having swiveled wheels, aradius bar connecting the wheels fork joint steeringmovement. operating mechanismconnected to the radii as, baraand laterally shiftable cultivator beams; of connections between: the'b'eams for causing thenrto' movevlatera'lly in unison, a laterally swinging bracket extending adjacent the radius bar and resting on a lined frame member, said bracket. being connected to said b a n-i connections, and ala'tch =shiftably moimted onaysaid bracket and arranged to interlock with cooperating locking. means on either said radius bar or said frame member.

3. The combination withia cultivator having two pairs of beams, swivel-ed wheels, a radius bar connecting the wheels for oint steering movement, operating. mechanism connected to the radius bar-,1 and lateral-1y shiftable cultivator beams; of connections between the beams for causing both pairs to move-in the. same direction laterally in uni.- son includingmeans for sin'mltaneously adjusting the beams in eachipair to and from each other, a laterally" swinging bracket supporting said beam' connections and means carried by said bracket for connecting.- and disconnecting it fromsaid radius bar.

4. The combinationwith a cultivator'having' swiveled wheels, a radius bar connecting the wheels for joint steering movement,

operating mechanismlconnectedto the radius bar, and laterally slnftable CUltIVZItOI beams of beam connections for simultaneously the wheels for joint steering move nent,

operating: mechanismconneeted to the radius bar, and laterally shiftablecultivator beams; of beam connections for simultaneously shifting. the beams, and a latch member movable with said beam connections and pro vided; withwneans for interlocking with the radius bar in: one position and tor interlocking'gwith a fixed part of the cultivator in another position;

6; A cultivator having a wheeled frame,

two pairs of beams, a pair of arched memhers with their inner arms crossed and the ends of their; arms extended, horizontally and formingournals on which the; forward ends of the beams are mounted, each: arch carryingone beam of each pair, and means for simultaneouslyyshifting,the arches laterally comprising a laterally movable support mounted on: the frame,a painof oppositely directed bell cranks pivoted on said support each with one arm linked to one of the arches, joint actuatingmeans connected-to the other arm whereby the arches nraybe op msitely shifted laterally, andamcans for I actuating means connected, to the: other arms.

8. A cultivator having a frame, Wheels supportiingthe frame, two pairs of beams, supports for the, beams comprising a'pair of arches with their inner arms cli'ossedand the ends of their arms extended horizontally forn'linog journals on which the forward ends of the beams are pivoted, supporting;means between the frame and said arches and beams, mechanismfor shifting, saidarches to either side in unison,:and means operableindependently of said mechanism for shifting the arches towards and from each other, thereby correspondinglymoving the beams of both pairs simultaneously.

9; A cultivator having a frame, wheels supporting the frame, two pairs of beams, a

pair-ofarchesipivotally supporting the for;- ward ends ofthebeams, each arch support-1 ingptl'ie outer beam of one pair andithe inner beam ofthe other, supporting means between the frame and said arches and beams, mechanism for shiftingsaid arches toreither side in unison, andmeanscar-riedby said mechanism for shifting the arches towards and from each other, thereby correspondingly moving the beams of both pairs sin'niltaneously.

10; A cultivator comprising a frame, swivsled wheels supporting the frame, a pair of laterally shiftable arches SIlSPGIKlKKl, from the frame. the inner arms of said arches being extended and crossed. cultivator beams piv oted to the arms of said arches, guiding mechanism connected to said wheels and arches for shifting them towards cit-her; side simultaneously;

ill"

III

11. A cultivator comprising a frame, swiv eled wheels supporting the frame, two pairs of laterally shiftable cultivatorbeams sus, pended from said frame so as to be laterally swingable on longitudinal axes, guiding mechanism, connected to; said wheels and beamsforishifting them towards either side in unison, andoverlapped uprightarchshaped structures for simultaneously shifting the beams in each pair, towards; and from each other. i I

12., A multiple row pivot axle cultivator, comprising a frame, laterally shiftable cultivatorbeams pivotally associated with said frame, beam shifting-mechanism for moving saidbeams with respecttorows of plants being cultivated, said mechanism including substantially bail-shaped structures, each of said structures having substantially vertically depending legs anda bight connecting said legs, each; structure operatively overlapping the otherand having its respective depending legs connected to corresponding alternate cultivator beams in such manner as to render the structures effective to laterally shift the, cultivator-beams, the shifting force of said branched structures being directly transmittedto the forward ends of the cultivator beams, thereby rendering said structures effective to exert their shift-mg effort directly upon the forward ends of the cultivator beams, laterally swing,

ing supporting links laterally swingably supporting the bail-shaped structures from.

the frame, and control means operatively associated with said structures so as to move all ofsaid cultivator beams simultaneously laterally, some of the beams in one direction, and the others in the opposite di-- rection. 7 a v 13. A pivot-axle multiple row cultivator comprising a wheel supported cultivator frame, a pluralityof laterally movable cultivator beams pivotally associated at their forward ends with said frame, substantially arch-shaped devices vertically arranged and operatively connected to the cultivator frame by pairs of pendulous links. each oie16. frame and rotatably receiving said wheels, a steering mechanism connecting the pivot axles for steering the cultivator, cultivator beams, substantially arch-shaped struc tures for associating the cultivator beams with the frame, said structures being arranged at the forwardends ofithe beams. and having their entire weight borne by links depending from the frame, dev ices for moving said arch-shaped structures simultaneously in the same direction to laterally shift all oi the cultivator beams in the same direction or in opposite directions to change the spacing of adjacent beams, andmeans for connecting the steering mechanism with said devices. c

15'. A multiple-row cult *ator comprising a frame, supportingwheels, pivot axles associating the wheelswith the frame, steering mechanism connecting the pivot axles for steering the cultivator, pairsot cultivator beams, overlapped substantially arch-shaped steering mechanism and movable in the same direction to shift all of the cultivator beams simultaneously in the same direction or in opposite directions to spread the beams at the will'of the operator, and means for locking the steering mechanism to said structures atthe will of the operator; 1,

16. Amultiple-row plural-beam pivot-axle cultivator having steeringmeehanism and a pluralityyojt' overlapped substantially archshaped structures relatively movable for s 'n'eading the cultivator beams, selectively operable means to lock the steering mechanism to said structures so thatit willmove transversely in unison therewith, and means for supporting said structures independently of the steering mechanism. a a 17. A multiple-rowplural-beam cultivator having overlapped substantially arch-shaped vertical structures connected to the forward ends of the beams for spreadingand laterally shifting the beams, the number of said substantially arch-shaped structures corresponding to the number of rowsof plants operated upon by the cultivator, said substantially arch-shaped structures having independent pendulous supports allowing them to swing laterally as units. a

18. A multiple-rowplural-beam pivot-axle cultivator having a plurality of substantially arch-shaped structures overlapped in .relation to each other and forming horizontal pivotal supports for the forward endsof the cultivator beams to fornra single unitary organization combining the functions of s ire'ading and laterally shifting the cultivator beams, said substantially arch-shaped structures having a independent pendulous supports. 1

19. A multiple-row plural-beam pivot-axle cultivator comprising a frame, supporting dodgingmovements, said structures having depending parts each of Which is pivotally associatcdwith a cultivator beam, and'pairs of links depending from the frame and sivinlgablysupporting the depending parts o'fithe bail sha' ped stru'cltures'and the beams so that the structures may swing laterally of the frame as units.

120. A 'mu'ltiple row pivot-axle cultivator comprising pairs ofbeams, a pair of substantially arch-shaped beam shifting structures overlapping each other and having their "ends extended horizontally "to form journals onwhich the" forward ends of the beams areniounted, eachof saidsubstanti ally arch-shaped"structures carrying one beam of adjacent *pairs of beams, and means for simultaneously shifting the substantially archshaped ldev ices' late rally comprising a laterally movable support mounted on the frame, oppositely movable parts mounted on the cultivatorfeach or saidparts being linked to one of said substantially arch-shaped structures, operating means for said parts,and mansion moviirgsaid support from side to side whereby the substantially'arcl1-sl1apecl devices may be simultaneously shifted laterally in the" same direction. a

21; A beamshifti fg mechanismfor multiple-row 'cultivators, "cultivator beams said mechanism including overlapped substantially ba'il-shapedstructures having substanti ai ly vertically"depending legsfthe lower ends of said legs forming pivotal frontsupports for :the' "ends *"of- "the cultivator beams, means for increasing the amountfof overlap of :Said

bail-shaped structures to laterally shift the cultivator fll'iealmstowartl or froni rows of ila nts and mcans for connecting the legs of onebail-shaped structure to the forward ends of alternate cultivatorbeams, said last named means holdiugthe cultivator beams against lateral pivoting movement-relative to the: depending legs ofthe substantially bailshaped structures 22. "A multiple-row cultivator having' a Wheeled frame, a plurality (if-pairs of laterally shiftablebeams; a plurality of vertically arranged substantially arch-shaped structures having overlapped parts i and other portions formingjournals'on which the for-- ward ends of thefiheiams are u'iountcd, each substantially l'tlt'lFSlHlPt-Kl device connected to one bcanr of one pair ofbeams, and means for simultaneously shifting the substantially arch shaped devices laterally in 'og'iposite di-- rections to spread the beams of each pair, said shifting means comprising oppositely iiiovaible parts each bein linkedto one of the substantially arclushaped devices, and actuating means for said shifting means.

7 V ile-roiv cultivator comprising, a" Wheel supported frame, a plurality of cultivator lieains, pcudulous linlts arranged in pairs and connected to am frame and to structure, both of said arched structures l Lea-7,374

the forward ends-of the cultivator beams-so as to permit the fo rward ends of" the beams i to swing freely laterally ofthe ci'iltivator but preventingfore amt aft moven' ent of the beams, devices for-connecting sai pairs of pendulous links and for connecting the cultivator beams; said devices comprising op'eratively associated substantially archshaped structures acting upon the forwardends-of alternate beams these structures per forming the functions of beam spreader archcs; and holding the beams rigidly spaced and shifting the teams laterally to an d' from rows of plants as the cultivator is o 'perated, the number or said substantial archshaped structures cor csponding to the numberof rows Ofplantsoperated upon by the cultivator.

24. A multiple-rovv plural-begun 1 pivot axle cultivatorhaving overlapped substantially arch-shaped structures for transmitting plant -dodging anovenie'nts to" the cultivator beams, said Lirclrshaped' structures each hav ing one leg integral with its inideport-ion a cultivator beam at each end ofcach of said. structures, and connections between the it'or- 'Ward ends of the'be-ams and the ends of said structures "allowing substantially free up and down swinging of the beams about the ends of the structures, but preventing tive lateral swinging movements of the beams connected to each structure.

25. In a two-row pivot axle cult-ir. 'ator;a 'raine, supporting wheels connected totlie frame by pivot-axles, "four transversely aligned cultivator" beams, beam 'supports ivhereby each beairr is laterally swingalily suspended from the frame at "its forward end, an upwardly arched structure direct y connecting the first and third cultivator beams at their ru'ard ends, similar upwardly arched structure directly connecting; the secondfiand fourth beams at their Ward ends and interectii e the first arch ing laterally swingably suspended from the frame by the same elementswhich so suspend the cultivator beam, a steering me 'hauisiu connecting said pivot-axles, and control'devices connected to said SiQGl'lliQ uu chanisni and said arched structures for laterally moving the intersecting; structures and the cultivator beams.

26. A cultivator conu rising a frame, su'iveled wheels supporting the frame; a pair of laterally shiftahle upright overlapped arch-shaped structures suspended from the frame, duplicate pairs Jot cultivator beams pivotally mounted on the ma;

shaped structures for independent more inents as pairs. guiding" mechanisi'n connected to said Wheels and overlapped archshaped structures for shifting them towards either-side in unison, and'u'i'cans for moving the overlapped arch-shapedstructuii'esbodily I respondingly moving thebeains of both pairs simultaneously.

27. A two-row cultivator comprising, In combination, a frame, cultivator beams,

swiveled wheels supporting the frame, a pair of laterallyshiftable overlapped structures connected to the beams, means for connecting certain of the beams to eachone of the overlapped structures on horizontal axes, supports pendent-1y connected to the frame and pivotally supporting the i'iverlapperil structures, steeiing mechanism connected to said wheels and to said structures for producing plant dodging i'iiovements of the cultivator l)GtllilS,.2L1itl means for moving the overlapped structures simultaneously in op-. posite directions to vary the spacing of the beams.

28. A two-row cultivator comprising, in combination, a frame, wheels supporting the frame, two pairs of cultivator beams, a pair of overlapped structures respectively pivotally supporting the forward ends of separate pairs of the beams on horizontal axes, pendulous supports for carrying the entire weight of said structures, mechanism for shifting the overlapped. structures to either side in unison, and means operable independently of said mechanism for shifting the overlapped structures towards and from each other, thereby moving the beams of both pairs simultaneously. p y

29.. Acultivator having a frame, wheels supporting the frame, two pairs of cultivatorbeanis, a pair of overlapped structures pivotally supporting the forward ends of the beams, each structure supporting the outer beam of one pair of beams and the inner beam oftlie other pair of beams, and independent supports connected to the frame and the ends of the overlapped structures andcarrying the entire weight of the overlapped structures.

30. A two-row cultivator con'iprising, in combination, cultivator beams, duplicate interchangeable ot-"erlapped arch-shaped strucs tures, and connections between the respective structures and beams including means holding the beams in fixed parallel relations.

31. A two-row cultivator comprising, in combination, a wheel supported frame, cultivator beams, duplicate interchangeable overlapped upright arch-shaped structures respectively connected to certain of the beams and swingably supported from the frame, and means for shifting the overlapped structures in unison to produce plant dodging movementsof the beams by action upon the forward ends of the beams.

32. A multiple row cultivator comprising, in combination cultivator beams, duplicate interchangeable, overlapped structures together forming means for transmitting plant dodging movements to the forward ends of the beams, pendulous supports for said struc tures, and ineansacting upon the overlapped structures to shift them simultaneously in the same or in opposite directions.

A two-row cultivator comprising, incombination, a wheel supported frame, four cultivator beams carriedzbysaid frame,-a single rigid member supporting the" forward ends of the first and third cultivator beams,

a second single rigid member supporting the.

forward ends of the second and fourth cultivator beams, and means connecting said rigid members for shifting them simultaneouslyin opposite directions. v

34. A two-row cultivator comprising, combination,supporting wheels, a frame carried by the supporting wheels, four cultivator beams carried by the frame, and means for supporting and shifting the cultivator beams laterally, saidineans comprising two rigid and oppositely movable members each of greater length than the distance between a pair of alternate beams and extending transversely of the frame near its forward end, and oppositely moving parts for shifting said members simultaneously, said rigid members being duplicatesand acting as the direct pivotal supports for pairs of alternate beams.

35. A cultivator comprising a rigid frame,

swiveled wheels supporting the frame, a-pair of laterally shiftable interchangeable arch shaped structures suspended from the frame in substantially uprightposit-ions, the inner parts of said arch-shaped structures being overlapped, cultivator beams having such connections to the arms of the arch-shaped structures that the beams are allowed free up and down movement but are prevented from having lateral movements relative to each other, guiding mechanism connected to said wheels and arch-shaped structures for shifting them towards either side in unison to produce plant dodging movements, and means for moving the arch-shaped structures towards and from each other, thereby correspondinglymoving the beams of both pairs simultaneously to bring the beams into closer relation to plants.

36. A multiple row cultivator comprising, in combination, a frame, beams, pivot wheels supporting the frame, a pair of laterally shiftable upright overlapped structures connected to the beams and suspended from the frame in upright positions, bearings 'lor'conneeting the beams to the overlapped structures on horizontal substantially co-axial axes, rigid connections between said bearings and the beams to prevent the beams 'fl'OIH' llll) they cultivator and the beams, and means carried by the steering mechanism for moving theoverlappe-d structures simultaneously in opposite directions to vary, the spacing of the beams. i

371A two row cultivator L comprising, in combination, cultivator beams, upright over lapped arch-shaped beam connc-zctingstructures mova-ble inunison for producing plant dodging; movements of the cultivator beams, and connections between said structures and the beams for preventing the beams from moving out of positions substantially perpendicular to the vertical planes ofthe structures. I

S8. A two-row cultivator commie-mg, in combination, pairs of cultivator beams, overlapped upright arch-shaped structures con nected to the forward ends of the beamsso as to norn'ially prevent relative lateral movements ofthe'beams, and means for shifting the overlapped structures in unison to produce plant d edging movements of the beai'ns, said means including independently operable devices'for shiftinu the arch-shaped structures siimiltaneously in opposite directions for; heading thcpairs of beams. V

39. Atwo-row pivot axle cultivator comprising, in combination, su 'iportiug wheels, a pivot axle {foreach Wheel, an axle beam connecting the pivot axles, a front transverse supporh neans connecting the beam Withythe supportso'as to form a rigidjf ame therewith, cultivator beams free to have up and, down pivotal movements, overlap ied beam connecting; structures suspended from the frame beneath the front support,a substantially upright pendulum rod for each cultivator beam pivotally connected at its upper end to the front support, a pivotal connection between the lower end of each pendulum rod and the forward end of (the associated cultivator beam and one end of one ,ofthe overlapped beam connecting structures, agforvvardly and downwardly inclined push, bar pivotally connected. at its upper end with the frame at a position near the axle beam and pivotally connected at its lower end with one end of a beam connecting structure, connections between. each end of a beam connecting structure and a cultivator beam for normall 1 n'eventin the beam from moving; out of a position substantially at right angles to vertical planes passing through the ends of those structures, control means connected to the beam connecting structures forehifting'the beams simultaneously, steering arms carried by thepivot axles, means connecting the, ste ring arms for impartingsimultaneous movement to the arms, and structure connecting the control means and the connecting means for imparting' simultaneous lateral movement to the i cultivator beams and the supporting wheels.

- 40. A two row cultivator con pnising, in

combination, supporting Wheels, a frame carried by the supporting \vheel-s, four cultivator beams, and means for laterally shif ing' the cultivator beams, said means comprising two rigi l oppositely movable rods extending transversely of the frame near its forward end, each rod having a length greater thanthe distance between alternate beams, oppositely moving parts for shifting said rods sinmltaneously, and a direct vpivotal connection between the forward .end of each beam and a rod for preventing the beam from moving out of a position substantially perpendicular to the rod, said connection allowing up and down movements of the beamfi il. ii. cultivator comprising, in combination, a frame, ground wheels supportinp the frame, four cultivator beams, oppositely movable supports movably mounted transversely of the frame at its forward end, the first support comprising a single rod extending through the forward ends of the first and third cultivator beams so as to hold them constantly in parallelism, the second 0 said supports (promising a single rod sin vilarly extending; through theends, of the second and fourth cultivator batons for i'naintaining them constantly perpendicular to the rodland means for moving the supports simultaneously in opposite directions. A two-row cultivator comprising, in

combination, a frame, ground wheels for supporting the frame, four cultivator beams, interchangeable shifter rods of one-piece construction movably carried by the frame, direct pivotal connections between the first and third cultivator beams and one of said interchangeable shifter rods which extends from one of said beams to the other, direct pivotal connections between the second and fourth cultivator ,bez'ims and the other of said shifter rods which extends fromsaid second beam to said fourth beam, and means for shifting; the iutcrclniugeable shift-er rods in unison to produce plant dodging movements of the beams, said pivotal connections being rigid as related to lateral inovcntionts of the beams thereby preventing the beams fron'i moving;' from positions perpendicular to the shifter rods.

43. A cultivator (,(lllllllflt illlg', in combination, a frau'ic, Wheels sup 'iorting the frame, pivot axles for the heels, a stcerinp; arm

for turning each pivot axle, radius means tying the steering arms, together for move ment in unison, a lever construction for shifting' the radius means tmnsverscl-y relative to the frame, cultivator beams beneath the frame, abeam connector structure transver.,ely movable relative to, the fiam and uniting means normally compelling the radius means and the beam connector structure to ,move in unison, saiduniting means including a single elenfient movable to three Hlll positions of adjustment, the first adjustment locking the beam connector structure to the radius means, the second adjustment locking the beam connector structure to the frame, and the third adjustment maintaining the beam connector structure in unlocked condition relative to the frame and relative to the radius means,

44. The combination with a cultivator having swiveled wheels, radius means connecting the wheels for joint steering movement, operating mechanism connected to the radius means, and laterally shiftable cultivator beams; of beam connections for simultaneously shifting the beams and a latch member locking the radius means to the beam connections in one position of adjustment and having means for interlockingly engaging a fixed part of the cultivator in another position of adjustment for maintaining the beam connections against move ment relative to the frame.

45. As an article of manufacture, a cultivator arch constructed of a single rod and comprising a beam supporting end, an integral upright part rising abruptly from said end at a small angleto the vertical, a top portion extending from the top of the upright part, and an inclined section of greater length than the upright part extending from the top portion to a position at a greater horizontal distance from the middle of the top portion than the position of the beam supporting end.

46. As an article of manufacture, a cultivator arch constructed of a single rod and comprising a beam supporting end, an in tegral upright part rising from said end, a

top portion extendin from the top of the upright part, and a ent section of greater length than the upright part extending from the top portion to a position at a greater horizontal distance from the middle of the top portion than the position of the beam supporting end.

In testimony whereof I aflix my signature.

SAMUEL K. DENNIS.

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