US1084557A

US1084557A - Cultivator.

Info

Publication number: US1084557A
Application number: US52096409A
Authority: US
Inventors: Clement W Michael
Original assignee: J I CASE PLOW WORKS
Current assignee: J I CASE PLOW WORKS
Priority date: 1909-10-04
Filing date: 1909-10-04
Publication date: 1914-01-13
Anticipated expiration: 1931-01-13

Description

C. W. MICHAEL.

C UL'HVATOR. APPLICATION H LBD 0911.4, 1909.

4;. mm1 .k -..m m .31.. IW W,... .14M W o o o o Q HN Z .Mm @www 7 i 6 w Q Q ww @k kv.- M 1? MK .Tm un .hm mm, QM .v

C. W. MICHAEL.

GULTIVATOR.

APPLICATION FILED 00124, 1909.

Patent-,ea Jan. 13, 1914n 4 SHEETS-SHEET 2.

'C. W. MICHAEL.

GULTIVATOR. APPLICATION FILED ocT.4, 1909.

1,084,557. Patented Jan. .13,1914.

4 SBEBTS-SHEET 3.

MRW

C. W. MIGEAEL.

oumvmo. APPLICATION FILED l909. 1,084,557. Patented Jan. 13,1914.

p' 4 SHEETS-SHEETI.'

- y-'W @am vm' l JQS.

nNiTEDsTATEs PATENT OFFICE'.-

CLEMENT' W..MICHAEL, or RACINE, WISCONSIN, AssIGNoR 'To J. i. CASE PLOW" WORKS, OFRACINE, WISCONSIN, .e ooROiiA'rIoN.

CULTIVATOR. y

To all whom it may concern Be it known that I, CLEMENT W. INI'ICHAEL a .citizen of the United States, anda residentl of'Racine, county of Racine, andState of Wisconsin, have invented certain new and useful Improvements in Cultivo-tors, of which the following is a. specification.

The invention relates to Wheeled cultivato-rs and more particularly to that type in which the oul'tivator beams are connecte to a counterbalancing seat-har,` so that the, rider may raise andlower thek beams Without the use of shift-levers or the like.

The invention seeks to provide a counter! balancing spring in connection with the seat-bai` and Oultivator beams, the tension of which can' be readily regulated in acco'rdance with the weight ofthe dierent riders.

In prior constructions, the' machine has been adapted for riders ofdiiferent'weight by providing adjustable connections between vthe counterbalanoing seat-bar and the cultivator beainswhich vary the leverage of the seat-bar upon the beams. Su'ch an adjustment, however, vvaries the throw of the coltivato-r beams and seat-ban Whereas the present improvement provides a machine in which the cultivator beams are counterbalancedby the combined action of aspring and the weight of the rider and means are pro-vided for varying the tension I `of the spring in accordance with the Weight of the rider, while the connections and the throw of the vseat-bar and beams remain the same.

The invention also seeks toprovide depthregulating'caster wheels for the cultivator beams, to provide connections betweenthe oultivator Abeams-and the swinging iv-heel f sections o-f the arched axle and .to otherwise improve and simplify this. type vof cultivator. l

The invention consists in the features of improvement'hereinafter set forth, illustrated in the preferred fformin 'theac companying drawings'- and more' particularlypointed out in the appended claims.

In the drawings, Figure 1` is a plan view of 'the improved cultivator. Fig. 2 is 'a longitudinal section on the line 2-2 of Fig. 1f with the parts in Aworking position. Fig. 3 is a side elevation with the near 'wheel'removed and showing the parts vated or riding position.- Fig. -i is a `rear Specification of Letters Patent. Aopiioation tied Ootobor 1i. ieee. serial No. 520,964.

ytransverse member part of 'the frame.V This transverse memc rown section o-f I ings 16 which 'vided with collars in their el'ev Patented J an. 13,1914.

View of the Conan portion of tho Whoo-,1.-

axle 'with parts shown in section On theline 1r-4 of Fig. `cross-oar at the front of 'the counterbalancing seat-bar looking in' the direction of the arrows oof Fig. 1.k Fig. 6 is a detail view 'of parts shown in Fig. 5 with the cross-barshown in `section. Fig. 7 is a detail vieW-of one of the depth-regulating caster Wheels with parts shown in section on the line 7-7 of Fig. 1. Fig. 8 is a detail-- section on the line 8-8 of Fig. 7 Fig. 9 is 1. Fig. `5 is a detail view of the w a detail view of the coupling at the forward end of the cultivator beams With parts shown in sect-ion on the -line 9-9 of Fig. 1.

Fig. 1,0- issa detail side view of parts shown in Fig. 9..

T'heframe of the machine comprises sidebars 11 that"are connected at their forward converging. .ends `by a bracket 12 to the tongue 13. The rear divergent ends of the side-bars 11 are connected to the ends of a 14 which thus forms ber -is preferably in the form of a hollow pipe and alsoconstitutes the central, horizontal crown'section of the arched wheel axle Within which the upper horizontal .por-

tions `of the depending Wheel sections 15 are swiveled This transversel member or the arched axle, as most plainly shown in Fig. 4, is secured to the rear ends of theside frame bars by castt over the ends of the memberli and are clainpedthereto; by bolts. 17 i The castings or brackets 16 are provided with lipwardlyprojecting 1u s 18 that are connected to therear ends o? the side-bars 11 by bolts 19. .The supporting Wheels 20 are' journaled upon horizontal spindles at the-lowerends of the Wheel sections 15 of thearched axle. The'upperhorizontalends e 25 permit the lateral swing of the spindles and `wheels can alsoA be laterally adjusted in accordance with the varying ldistances between the rows of plants.

A yoke 24 of usual form is secured to the forward part of the frame. The upper. part of the yoke is secured to the rear end ofv .the tongue -13 by Va'bolt 25 and to the sidev bars 1l by bolts 26. The lower ends of the yoke are connected to the tongueand tothe,

forward endsof the side-bars 11 by inclined brace-bars 27. At itslower end, .the yoke is provided with outwardly projecting spindles 28 upon whiclrcoupling sleeves 29 are rotatably mounted. Coupllngs 30 are vadjustably secured to the sleeves 29 and `up wardlyprojecting standards 31 at'the forward ends of the cultivator beams or gangs are vertically swiveled in. the couplings.

' Each cultivator beam comprises bars 32 connected together in offset relation and secured .at-their forward ends to the standards 31. The beams are each provided with a, series of vertical shanks 33 'carrying the 'cultivating shovels 34. The connections between thestandards 31 and the couplings 30 beams to cultivate dierent portions of the ground.

' The beams are also free to verally the' different widths lbetween the rows` of' shift vertically to and from workingposition. Duringvthis shift, the couplings 30 and 'sleeves 29 turn upon the horizontal spindle v28 of the yoke' The vcouplings-30 may be adjusted laton the sleeves .29 in accordance with plants.

Ihe cultivator beams are counterbalanced and are moved to and from Working position by means of a iseat-bar that is pivoted intermediate its endsv to fthe frame, carries a riders. seat on its rear end and is connected at its forward end to the'beams. -In the preferred' form shown, the counterbalancing seat-.bar comprises front and rear sections, each formed of twin bars. 35 of the front section ofthe seat-bar are parallel for the greater portion of their length (see Fig.' 1) and have their forward ends bent inwardly toward each other' and connected by a casting or bracket 36.` This bracket (see Fig. p5) lits over the forward ends of the bars and is secured theretoby a bolt 37 The rear ends ofthe twin barsl 35 i extendfbetween lugs 38 '(see Figs. \1 and 4) on a casting or bracket 39 and are connected to the lugs by pivot bolts 40'. The bracket 39 fits upon'the central portionof the crown section14 of the Aarched' axleand is firmly.

secured thereto byLU-bolts 4`l. 1 The rear section "of the counterbalancing seat-bar comprises the twin bars 42 that carry the riders seat43- at their rear ends. rI heforward divergent ends of the bars 425' overlap the rear ends of the bars 35 of and the -other lugs 38 land pivotally 'engage the bolts .40.l The 'rearends of lthe bars 35 section 42 with 'wardly ont of 'to be shipped or stored.

The cultivator beams are flexibly',connect` -justably mounted The twin bars the front sectionv extend beyond the provided with lugs,I 44 fixed thereto and extendingv beneath the bars 42,.' The 'front and rear sections 35`. and 42 ofthe counterbalancing, seat-supporting bar, during thev ordinaryv operation of the machine, shift together about the pivot bolts 4 0. The oneway donnectionbetween the sections, formed by the lugs "44', permits the shift of the rear its seat 43up'wardly and fored 't the ends of a crossLbar 45 that is pi-v.- oted. to the forward end of the counterbalancing, seat-supporting bar. This .cross-bar extends between a pair of upwardly and forwardly inclined lugs 46 on the bracket 36 and'is centrally connected thereto by a pivot bolt 47. A pair of brackets 48 are adslots 49 through which the` crossbar extends.

-Adjacent itsends, the crossbaris provided with aseries` of notches 50 in its upper edge and the brackets 48, are provided with portions. 51 at the upp'eends offthe slots 49- adapted to engage the notches- '50 and hold the brackets48 1n adjusted position. The slot 49 of leach bracket'is of such size that .the bracket canbe raised to disengage its portion lf'rom the notch 50 and then shifted along the cross-bar into enga-gement with pivot bolt 40 and arei the way when the machine isl upon the ends of the crosspreferably provided with another of thenotch'es 50. --Cotter-pins 52 extend through the ends of the cross-bar 45 and. prevent the accidental disengagement of the brackets`48 therefrom. The brackets 48 are held in inclined position by the cross-bar 45 and Irbolts 5,3 areconnected to-the upper ends of flexible connecting chains Hand-Wheels or nuts 56 are adjustably threaded upon theupper endsof the I-bolts 53 and engage the upper portions of the brackets 48. These hand-wheels serve to vary the length 54 that extend d ow'nwardly and rearwardly and are connected at-n the1r lower ends to vhooks 55 on the beams.

by throwing his Aweight; forand by depressing or lifting.v

feet, canl readily shiftl or from working position and extending therethrough u of theconnections between" the cross-barand thegcultiv'ator beams.

)1i-The cultivatorbeams are provided with '115 beam's are counterbalanced and vraisedand.

lowered by av seat-bar7 it is necessaryfto vadapt the machine forrider's of different weight. .In accordance with the present invention, this is effected 'by a spring which assists counterbalanoing the cultivator beams. In the -preferred form shown, the counterbalancing spring 58 is connected at its forward end to a hook 59 on the bracket and.'62. The toggle link 61 is pivoted to a notched segment `63 that is bolted to the bracket 89v on the crown section of the arched wheel axle. A shift lever 64 is pivoted to the` notched segments\63 and the tog gle link` `62 -is pivotally connected toV the weight.

- thel spring.

lever adjacent its 'pivoted end. The lever 64 (see Fig. 4) is'formed of twin members which embracev the notched vsegment 63 and is provided with a dog 65 for engaging the notches of the segment -to thereby hold'the s hift lever in adjusted position. A springheld trip 66 forv the dog is pivoted tothe lever adjacent its upper end. By adjusting the lever 64, the tension of the spring 58 can be readily varied and the beams properly vcounterbalz'inc'ed, with riders of different The toggle links 61 and 62 serve to increase the leverageA ofthe shifter 64 upon In prior constructions, it 'has to adaptthe machine for difthe point of connection chains 54 and the This mode of adj ustment, however,

been common ferent riders to vary gangs.'

varies the-throw of the gangsand of the counterbalaneing seat-bar whereas, with applicants improved arrangement, the throw of the seat-bar and of the gangs is not changed.

In oultivators of this type, it isdiicult i to hold the cultivator beams at a uniform journaled working depth. In accordance with the present invention, the beams or gangs are provided with depth-regulating wheels 67 These wheels are .in theA u on 2the rearwardly inclined lower ends o spindles or standards 68. The

i* upper, vertical portions of the standards or brackets in upright position. These 'pieces are provided with longitudinal ribs engage the upper andlower.

spindles 68 are swiveled or pivoted within brackets 69 and these brackets are adjustably i connected to the outside bars'32 of the-beams by bolts 70. which extend .through vertical longitudinal slots in the brackets. Guide pieces 72 are provided j 4avidi@ that (seey Fig. 7

beam bars 32 and with Vertlcal edges of the ribs `(see Fig. 8) .that vengage the side edges of the brackets 69. .The caster movement of 73 that-.is

In the form shown, the spring 1sA for .homing the connected to the upper endof the standard 68 to turn therewith and is provided with a. depending lug 74 arranged between of stop lugs 75 011 the upper portion bracket 69 (see igsbl and 7).. These caster-Wheels will accurately determine the working position of the gangs, lnotwithstanding the factfthat the latter are connected and areraised `and lowered by the floating or counterbaslancin'g.'seat-bar.- Byl loosening the nuts on the bolts working depth of the beams. These depthregulatingcaster wheels will not interfere with the lateral movement of the gangshef- 70, the caster- `wheels. can be readily adjusted to vary the a pair;

fected by the feet of the operator engaging A the stirrups 5.7.

The vertical shift of the beams to riding position is V.limited by a stop connection between the counterbztlancing seat-bar and the frame. In the forln shown, this stop connection `comprises two vfleXiblevvj-chains 7 6 which are connected at their forward endstothe frame by the bolts26 and therear ends of which arearranged to 'adjustably engage any one ofaseries of holes 77 formed in .forwardly-projecting ribs 78 on the brackets' 48. These iiexible chains .76 serve to limit the movement of the seat-'bar when it is shifted to raise the gangs as illustrated in Fig/3. In its working and riding positions, the depending wheel spindles 15 are arranged to shift with the cultivator-beams. For this purpose, 'links 7 9 are pivotally connected by I-bolts 80 vto the lower ends of the wheel sections 15 of thev arched axle and, at their forward, ends, to the lower ends of a pair of arms 81 that are pivoted on the outer ends of the spindle 28 of the yoke 24. The sleeves 29 on the spindles 28 are provided at their .outer ends with short depending arms' 82, and the arms Stare adjustably connected to the arms 82 by bolts 83. Each bolt is arranged to extend through one Aof a series of vholes 84 in the arms 81. .By thus connecting the depending wheel sections of the arched axle to the couplings at the forward ends of the cultivator beams, the wheels are shifted, as

machine is properly balanced, both in the working position and in the riding position of the beams.

- An' equalizer bar 86 extends beneath the rear end of the'ipole 13 and above a strap 86 bolted to the vunder side of the pole. The equalizer bar is pivoted to theppole and strap` by a bolt 88. A pair of bars 89are pivoted at`their' upper ends to the ends of y the equalizer bar and depend therefrom. The lower ends of the bars 89 are connected by chain links 90 to the arms 81. The bars 88 are provided with a series of holes 91, so that the 'whiietree of the team may be connected thereto. The pull of the team ends of the rear sections of be made in the details set forth without departure from the' essentials of the invention.

I claim as my invention 1. In a cultivator, the' combination with the frame, of a cultivator beam hung therefrom, a seat-supporting bar connectedto said beam to counterbalance.'the'same, a

balance spring for bar andbeam, and means to .adaptthe machine to riders-v of different weight, substantially as described.

2. vIn a cultivator, the combination with -the frame, of cultivator beams hung there-- from, a counterbalancingbar having a' seat on its rear end,connectionsbetween the forward* end ofsaid bar and said cultivator beams, a counterbalancing spring for' said seat bar and said beams, and a shift-lever for adjusting the tension of said spring having means for releasably locking the same in adjusted position, substantially as described.

3. \In acultivator, the combination with the frame, of `cultivator beams hung Afrom saidframe, a counterbalancing seat-support-A ing bar pivoted to the frame intermediate its` ends and having a seaton its rear end, connections between the forward end of -sald seat-bar and said' beams, a counterbalancing spring interposed between said seat bar and 'A the frame, andA means foradjusting the ten# scribed.

sion of 'said spring, substantially' as de- 4. In a cultivator, the combination with the frame,of 'cultivator beams hung from said frame, a counterbalancing seat-supporting bar pivoted to the Vframe 'intermediate its end and having a seat on its rear end, connections between the forward end of said vseat bar and said beams, a counterbalance lift springv connected at oneendl to said seat-- supporting bar, anadjusting lever pivoted.

I on theframe and connected tothe :opposite end of said spring, ,and means for release ably locking said lever in adjusted position, substantially7 as described.-

5. In a cultivator, the combination with a frame andvlfan arched wheel axle having a central portion fixed to the side-bars ofsaid frame, of cultivator beams hung from the .forward end of said frame, a counterbalancing seat-supporting bar pivoted between,

its ends to the central portion of said axle,' connections between the 'forward end of said for adjusting the tension ,of said spring' 8. In straddle row cultivators,

seat-bar and said beams, a counterbalancing lift-spring connected at one end to the forward end of said seat-bar, and adjustable means connecting the other end of -said spring to thecentral portion of said axle, substantially as described. v v Y 6. In a cultivator, the combination with a frame andan arched wheel axle vhaving a central portion fixed to the side-bars of said frame, of cultivator beams hung from the forward end of said frame, a counterbalancing seat-supporting bar pivoted between its ends to the central vportion of said axle,

connections between the forward end of said seat-bar and said beams, a counterbalancing lift-springconnected at its forward end to the forward end of said seat-bar, an adjusting lever pivoted on the central portion of said axle and connected to the rear end of. said spring, and means for releasably locktia'lly as described. 7.'In a cultivator, the combination with 'the frame, vof cultivator beams hung from -said frame, a counterbalancing seat-sup ort'- ing bar pivoted to the frame interme iate its ends and having a seatv on its rear end, connections between the forward en d of said seat-bar and said beams, a counterbalancing lift-spring 'connected -at its forward. end vto 95 the forward end of said seat-bar, an. adjustinglever pivoted on 'the frame, jointed -toggle links connected to the'rea'r end of said spring and pivted respectively to said lever and to said frame, and means for releasably lockingr said lever in adjusted position, sube stant-ially as described.

nation with an arched wheel axle and -a frame mounted jthereon, of cultivator beams hung on said frame to swing laterally and vertically,a counterbalancing seat bar Apivthe combic otally mounted on said frame betweenits ends and having a seat at its rear end, connectionsbetween the forward end of said seat bar and said cultivator beams and ground 'engaging devices connected to each of said beams forlimiting the movement of said beams and seatA bar to working posi-.

tion, substantially as described.

' 9.- In straddlezrow cultivators, the com-bination with 'an arched axle and framemounted thereon, of cultivator .beams hung onsaid frame to swing laterally` and vertically, a counterbalancing seat'bar pivotally mounted on said frame between itsends and 'having va seat on its rear end, connections between the forward end of said seat bar and said cultivator beams and adjustable stop' connections between tlie forward end of said Seat bar and said frame for limiting the up- .ward movement of said cultivator beams,

substantially as described.

10.. In straddle row cultivators, the combi` nation with the arched axle, of a frame 85 i ing said lever in adjusted position, substann mounted thereon, cultivator beams hung on said frame to swing laterally and vertically, a counterbalancing seat bar pivoted on said. fra-me between its ends, connections;between the forward end ofsaid seat bar and said"u cultivator bea1ns,a ground engagin device adjustablyconnectedto -each ot sai b'eams for limiting the movement of -said seat bar and said. frame to limitf'the movement of said bar and saidv beamsitd riding position, substantially asdescribed.

11. In straddle row cultivators,the combination with the frame'having a yoke at its forward end'7 and an..arched wheel axle whereon said. frame'is mounted, of cultivator beams hung at the forward -ends of4 said yoke to swing laterally and verticaliy, a seat supportin bar pivoted intermediate its ends onsaid. .ame fand. having itsl seat on.

its rear end, con necti0nsf between the forward. .endsfofsa'id seat bar and said cultivater beams,jand a trailing ground engagln device pivotally mounted upon each ofsai l' the frame having a yoke-at its forward' end, and an arched wheel axle -whereon said beams. and vertically adjlistablethereon, substantially as=.describe 12. vIn cultivators, the combination` with frame. is' mounted, ofcultivator beams hung at 4t-heir forward ends .on said yoke, a seat supporting bar-pivoted intermediate its ends on said frame and having a seat on its rear end, a cross-bar centrally pivoted to. the

forwardend of said seat bar, connections'. between the endsof said cross-bar and sald beams, and stop connections-between the ends of said bar and the forward portionof said frame for limiting the upward movement of said beams, substantially as de` 13. In a"culti vator, the combination with' the tongue, their forward ends to said tongue,

of an arched wheel" axle comprising a .central-y crown-sec'ti'on" secured to said side bars anddepending wheel sections swiveled in sa-id. crown'section, a yoke fixed to the forward end of'said frame having horizontal spindles.'

at its lower ends, sleeves on said spindles, couplings adjustably 4i'ixed to said sleeves, cultivator beams vertically pivoted to said couplings, depending arms adjustably connected to said sleeves, rlinks connecting said arms'and the -wheell sect-ions of said axle, a counterbalancing bar pivoted on the crown sect-ion of said wheel axle and havinga seat on its rear end, and connections between the forward-end of said bar and said cultivator beams substantially asdescribed.

14. In a cultivator, the combination with a frame, of an arched axle having depending wheel sections swiveled to the-frame, culti'- vator beams hung at the forward ends on the frame toj shift vertically and horizontally, a `pair of pivoted arms connected to said andside frame'v bars secured at beams toswinginrverticalplanes therewith, connecting links extending between 'said arms and said wheel sections, a counterbal ancin seat-supporting bar. pivoted between its ens on the frame andihayi'ng a seat on :its rearend, and connections-between, the forwardend 'of said seat barand. said beams, substantially as described.. 15. In cultivators, the combination with the frame, the counterbalan cingv seat 'bar 75 pivoted.. thereto,: and. coltivato-r beams'hung 'from said frames, of across-bar centrally p pivoted, to the forward end 'of said seat bar, blocks adjustable on'the' ends of -said cross'- Qbar', bolts extending through said blocks at right angles to 'said bai', adjusting nuts on. Ag'sail b'olts, and chainsfconnectedi to said bolts andsaid' 'cultivate-r beams,substantialll asv v@described l 16. In cultivators, the combination with the frame, the cou'nt'erbalamcingv Seat-bari-pivoted thereto, and"cnltivator beams hung lfrom said frames, of a, cross-barcentrally @'-pivoted to the forward end of said. seatbar, :said cross-bar'having notches in its upper @edge adjacent its ends, slotted blocks adjustl jle 'slidably on said-'bar and having porns at the upperiend of the slots thereof for engaging said notches, and. iexible conf 'nectons between saidfblocks-andsaidfbeams, 95

' substantially as; described.

17. cultivators, the combination with thef frame, thel 4counterbalancing seat-bar pivoted thereto, and cultilvator beams hung from said frame, -of a cross-bar centrally pivoted to the forward end of saidseat-bar, blocks'adjustable on the ends of said cress-5 bar, flexible, adjustable connections between said blocks andx .said beams, and flexible, adj ustable 'stop connections betwen'said blocks 105 and the forward portion of said frame, substantially as described.

18. In'astraddle row 'cultivator,. the combinationwith an arched axle, of a frame mounted en said'axle, cultivator gangs hung 11'0 'at their forward ends'to the forward end of said frame to'swing laterally and vertically, a counterbalancing seat bar pivoted intermediate Vits ends on said frame," con# 4ne'ctions between theA forward end of said. 115 seat-bar and said gangs, said gangs having stirrups at their rear ends'r arrange/d to be engagedby the riders feet for raising and lowering the. gangs: and guiding t/he same laterally, and ground engaging devices on said gangs to regulate the working depth thereof,-said grou-nd engaging devices being swiveled'to said gangs to permit' the lateral movement thereof, substantially as/described.

19. In'cultivators, the combination Y with 125 the frame and cultivator beams hung thereon, of a counterbalancing seat-bar comprising front and'rear sections pivotedto said frame at their adjacent ends, said sections having a one-way connection, a seat on said rear'section, and connections between said front section and said beams substantially as described.

20. In cultivators, the combination v"with the`frarne,`an arched wheel axle -having a central portion fixed to said frame, and

ucultivator beams hung on s aid'frame, of a.

doubleseat-bar ycmprising front and rear sections pivoted at their adjacent ends to the central portion of said wheel axle, said front section V extending rearwardly of the pivot point and' having lugs extending beneath said rear section, a seat on said rearsection,

.and connections between the forwardV end `stantially as described: AVA21. In cultivators, the combination with of lsaid front section and said beams, 'subthe wheeled frame, of cultivator beams hung thereon, a -seat-bar pivoted to said frame intermediate its ends and havingaseat on its rear end, flexible connections between the forward end ofsaid seat bar and said beams, and a flexible stop connection betweensaid seat-bar and the frame, substantially as' described.

22. In-a cultivator, thecombinationwith y the frame and supporting wheels therefor,

of a pair f cultivator gangs hung at their forward ends ,to the forward end .of said frame to `swing laterally and vertically, a

'counterbalancing seat bar pivoted intermediate its ends on' said frame, connections between vthe forward end o f said seat b ar and said gangs,grou1id engaging devices adjustably connected and pivoted to said gangs for limiting the` downward movement thereof Y and Iof the vforward end of said seat bar, and

i wheels,

stop connections between the forward end 'of said seat bar `and said frame to limit the upward movement of vvsaid gangs and of the forward endfof said bar, substantially 'as' described. n r 23. In a cultivator, the combination .with the frame, arched axle and supporting wheels, of Y`cultivator beams hung at their?- '24. In a cultivator, the combination 4with 4and supporting' the frame, `archedaxle,

of cultivator gangs hung at their forwardends to the forward end ofv v:said

frame tol swing laterally and vertically, a

counterbalanclng seat bar pivoted intermediate its ends on said frame and having a seat on itsrearend, connections between the.

forward end of said seat bar and said gangs,

ybrackets secured to and vertically adjustable on said gangs, and ground engaging devices sw1veled in said'brackets and serving to. limit'the downward movement. of said gangs,

' and `of the forward end of said seat bar, substantiallyas described.- ,g

' 25. Ina cultivator, the combination with the frame, arched wheel axle and sup- "porting wheels, of cultivator gangs hung at their forward 'ends to the'forward end ofn said frame to 'swing laterally and vertically,

a counterbalancing seat bar pivoted intermediate its ends on said frame and having a seat on itsrear end, connections between't-he forward end of said seat bar and said gangs, said gangs havingpalimited,k independent, vertical Aand lateral movement vand having stirrups on their rear ends arranged y"to be engaged .by .the feet of. the rider whereby the rider may raise `and`lower said gangs and gilidelthem laterally when-in position on said seat, and ground engaging devices pivyoted to and vertically adjustable on said gangs for limiting the downward movementthereof and of the forwardend of said seat bar, .substantially as described,

26. In a cultivator, the combination with the frame, Aarched wheel axle and supporting wheels, of cultivator gangs hung at their forward ends to the forward end of said frame to swing laterally and vertically, -a counterbalancing seat bar pivoted inter-r mediate itsy endson said frame and having a seat on its rear end, connections between the .forward end of said seat bar and said gangs,

said -gangs having a limited, independent, 'vertical and lateral. movement and having vstirrups on their rear endsarranged. lto be engaged by the feet of the rider whereby the' `f-rider may raise and lower said gangs and :guide them laterally when in positionon said scad-'adjustable stop connections between the forward end of the. seat bar andthe frame for limiting the upward movement thereof and of said gangs, and ground engaging devices pivotedto and 4vertically adjustable on said gangs for limiting the downward movement thereof and of the forward end of said seat bar, substantially as described.

CLEMENT W. MICHAEL.` Witnesses:

STANLEY A. BREWER, .EDWARD I. CRAWFORD.