US2780975A - Furrow damming implements - Google Patents

Description

Feb. 12, 1957 E. GUNNING FURROW DAMMING IMPLEMENTS I5 Sheets-Sheet l Filed July 9, 1953 Feb. 12, 1957 Y E. GUNNING 2,780,975

'I FURROW DAMMING IMPLEMENTS y Filed July 9, 1953 3 Sheets-Sheet 2 IOW.

V. IV/1274A Feb. 12, 1957 L. E. GUNNING f EURROW DAMMING IMPLEMENTS s sheets-sheet' s Filed July 9, 1953 m//f/n, wmv@ W WM 5./ 7 A Y 1% M2 7, h@ Y Z ./Z

United States Patent FURROW DAMMING llVIPLEMENTS Leslie E. Gunning, Lansford, N. Dak.

Application July 9, 1953, Serial No. 366,930

13 Claims. (Cl. 97-55) and the like have heretofore been known in the art.

However, damming devices of this general character which have been heretofore known have had several inherent disadvantages such as, for example, being complicated and expensive in construction; requiring me chanical locking means for holding the dammer in loadaccumulating position; being peculiarly sensitive to the rate of speed at which the furrow fo1`=1ningimplement traveled and, therefore, being unreliable in operation; and being so constructed that parts receiving the major wear cou-ld not be readily replaced.

It is a primary object of my invention lto alord a novel dammer which overcomes the aforementioned inherent diiculties of dammers heretofore known in the art. t

More specifically, it is an important object lof my invention to afford a dammer which does not require any mechanical locking devices for holding the dammer in load-accumulating position and which dammer is entirely automatic, collecting its load and dumping the same in an effective darn across a furrow at desirable intervals during movement of Ithe dammer along the furrow.

A further object 1of my invention is to provide a novel dammer of the aforementioned type which, in operation, is alected to a minimum extent by the speed of movement of the Kfarm implement pulling the same, and which is primarily responsive to the load of soil accumulated on the collecting member of the dammer in determining the spacing between loads dumped by the dammer.

Another object of my invention is to alord a novel dammer wherein the collecting member is supported in a novelv and expeditious manner.

Yet another object of my invention is to provide a dammer of the -aforementioned type wherein the collecting member is supported by a rotatablle supporting member in such a manner that, when the collecting member is disposed in load-accumulating position, the leading edge of the collecting member is disposed in spaced relation to the bottom of the furrow along which it is being moved, and the accumulation of a. predetermined load on the collecting member is effective to operatively engage the leading edge of the Icollecting member with the bottom of the furrow in such a manner as to initiate an entirely automatic load-dumping rotation `of the supporting member and the collecting member carried thereby.

A further objectof my invention is to enable adammer of the aforementioned type to be constructed in such a manner that the parts thereof which receive maximum wear may be quickly and easily replaced.

f'ice adjusted in a novel and expeditious manner.

A further object of my invention is to enable a. novel yand efficient dammer of the aforementioned type to be constructed so as to embody a plurality of collectingl members constituted anti larranged in a novel and expeditious manner.

Yet another object of my invention is to afford a novel dammer of the aforementioned type which embodies a novel coupling for attaching the dammer in trailing position to a Ifurrow-forming implement in a manner wherein the dammer may move in a novel and expeditious manner rela-tive to the aforementioned implement.

A further object of my invention lis to afford -a dammer of the aforementioned type which embodies a novel coupling constituted and arranged in a novel and expeditious manner wherein when the furrow-forming imple-'- ment is raised above a predetermined point such as for example, when raised to travel freely down a road or between elds, the dammer is also lifted free of the ground with the furrow-forming implement.

Other and further objects of the present invention Vwill be :apparent from the following description and claims 'and are illustrated in the accompanying drawings which, by way of illustration, show a preferred embodiment of the present invention and the principles thereof and what templated applying these principles.

rappended claims.

In the drawings: Fig. l is a longitudinal sectional view of a dammer embodying the principles of my invention, looking in theV direction of the arrows 1--1 in Fig. 4, and showing the dammer attached in operative trailing position behindva plow;

Fig.V 2 is a side elevational view of the dammer shown in Fig. l, but `showing the plow and the dammer in a dif-l ferent position;

Fig. 3 is fa detail side elevational view of the dammer shown in Fig. 1, with the dammer idispos-ed in a diiereut operative position;

Fig. 4 is a top plan View of the device shown in Fig. 1;

Fig. 5 is a detail sectional view taken substantially along the `line 5-5 in Fig. l;

Fig. 6 is an end elevational view lookin-g in the direction of the arrows 6-6 in Fig. 1

Fig. 7 is a det-ail sectional view taken substantially along the line 7 7 in Fig. 1, and

Fig. 8 is a longitudinal sectional view, similar to Fig.'

1, but showing a modied form of my invention;

Fig. 9 is a top plan view of a portion of the dammer shown in Fig. 8;

Fig. 10 is a side elevational view of the dammer shown in Fig. 8, with parts thereof disposed in other positions;

Fig. 1l is a side elevational View of the dammer shownin Fig. 8, with parts thereof disposed in other positions;

and

Fig. 12 is a sectional view taken substantially along the line 12-12 in Fig. 8. To illustrate the principles of my invention, a `dammer A 10, comprising a preferred embodiment of my invention,

is shown in Figs. 1 to 7, inclusive, of the drawings attached to the `shank S of a pilow P. The dammer 10 comprises, in general, a collecting member 12 mounted 0n a wheel segment 14 which is rotatably mounted in a frame 16, a coupling member 18 being attached to the forward end portion of the Iframe 16 for connecting the dammer Patented Feb. 12, 1957 Another object is to enable parts of a dammer to be l 3i;- 1(tettona:suitable'furrow` formingimplenrent-'sucb as; for? example, to the shank S of the plow P.

`In general, the operation of my novel dammer is that it' isepulledjbehindethe plow P inA trailingfjrelation -thereto in the frroweFtfo'rmedfbythe 'plow blade'B'onVVV the'shan-lSY` the collectinggmernber 12 movingalongj the furrow F1 in vlailaccumulatingj position suchas eshown" inf-Fig? luntil-a predetermined loadis' accumulartedfthere-v on; andithecolleeting -member -12 Aand the f wheel' segmenti 14 then being automatically caused to rotate' from load' accumulating`v` position; through'- the position shown 1n FigBandbackto 'the1-positionshown *in"Fg: l;l tok there bydumpaedamsuchtas thedamDin flirrowrl,` Fig.` l; theeollecti-nggnemb'er 12"*andlthe wheesegment' 14 'rtheni stopping^in load-*accumulatingnppsition' such as shown in Fig. l to beginthe'raccumulationof'fanother load and a newfcycle= 'ofiopei'atiom As ltlieplcwrl)jmoves lforwardly andi therefor'e thefdammer lmovesforwardly alongv the-frrow-F; thel'loadaccumulatingloraddumpingj cycle j ofbperati'onofthe dammerliis'repeatedly'performed tof thereby form arseries -of -the ldams'- D- along' therfurrow F."

-While `inthe-drawings a'plow P, having only one ifurrowiforming Jblade A-is'-shown, itA will v'be appreciated Vthat this is only by-wayof :illustrationfand vnotbywv'ay of'limi# tation 4andfthatlapleo/"having afplurali'tyV oflfurr'owforming blades; andwith -a-darnmenmounted initrailing position behindeachv orseveral off'theblades; may be usedl'without departing fromthe purviewofmyfinvention` fria'me'of thedammerijlFig's: l 'and 3, is sub stantiall'y:n U-'shaped, being operrV atthe rear' and` having A Vtwosidemembers 22andt23 andla closedfend24f A braeeebar v-26lis mounted yonr and' extends between the gforr' ward'iend portions of 'theside"members`22-andi23"adi jacentto'the forwardlor-closed end124fofj`the frameV 16;'

Aisub'stantiallytriangularshaped "platemenrb'er ier/tongue 27, having a rearwardly projecting legV 27d landia down#4V Wardly projecting leg 27b, is mounted ,0ntheeforv'vmdl endV portionJ of -the frame '16 Aforreleasable Lconnection ntoffthe coupli'ng member-18as-will be discussedin-greaterdetailA presently? The'iframe=16 maybe-formedas a lsingle unit ofV 'any suitable material such as, for example, cast steel, or may lne-'made offseparate pieces of Vsuitable material suchas, forf--examplal steelplate, welded or.y otherwisel suitably connected together. e

Y 'Theiwheeksegment- 14-comprises-a spiderv 282havinga centralihub ;29and four vradially'-projectingwirms 60a;

V30h, 30e and 30d. An arcuate-shaped rim`32 extends betherebetween, the longitudinallextremities of the iinr 32 terminating at thearrns 305 andr'sd, respeetively,jFig. l.

The wheel segment 14 iis rotatablymounted-'on-falbolt onjshaft--Sl l for'- -rotation ybetween'ethe side members 122 and 23 of the frame 16, the shaft 31l'being mountedain," L

andiex'tendhgnbetween,-thefrean end'portions ofthe side members-222111123 and'beingrh'eldfthereon by a nut 33,-; Figs;v l tand-i4; and :the 1 hub 29f being journaled Yonfthe shaft 31y between the side members 22 and 23.-

Thefwheclsegment. 14 also: includesa substantially arcuate-,shapedgshoe 34 which'r-is, removably mounted, onv thefarm'330i/1..andethefrimljn spanning; relationA betweentheiouten,end'portions of :the ,arm 30a and. arm

30a'. The shoe 34 is attached to the arm 30a by means.:

oa-a bolt which extends through angoutwardly Vprojecting ange 37 on the forward end portion of theshoe 34eand,1through;f-;the outer end por-tion of arm'a. An invvardly.-projectingange-39l is formed onthe vrear end portion.,.,of,.the shoe 34,.. Fig., l, and has a; plurality of The Yshoe.h

mounting-holes41,Fig. 6, formed therein. 34.isdjustablygmounted onthe spider -28 adjacent to Y thearnt 30d bymeans otrabolt'43 whichgextendsthrough the spider `23 and-the selectedone of the holes41.

{prefcr .totorm-the. spider 28 as asteel castingand to.

- Vmake the shoe 34 from plate steel. However, it will' be Y appreciated thoseQ skilled` inf-thes'art that theseepafts may be constructed of other suitable materials and by other means'without departing from the purview of my invention. Y

As is best seen in Figs. l, 4 and 5, the collecting member'12, is in the general form of a substantially arcuate,

shovel-shaped plate embodying;a..,semipointed front Vend portion 45, anda substantiallystraight .rear edgeor trailing edge 46e 'I'liefront'end'portioni Figi 4h`as a substantially dati-front edggeorleadng-gedge4Saand two (side edges 45b Aand 45C' extendingrearwardlytherefrom in divergingfrelationtcr eachother: Y

The collecting memben 11A-which -hasaconcave upper face 48 and a convex lower face 49, and is preferably' open at the sides thereofkthroughout its length, may be made of any suitable material such as steel plate.

The forward upper end portion 51 of the arm 30a. of

stantiallycomplernentaryiinishapefto the-'bottom' face49f of the collecting member I12, and the collectin'gmember" 12is lmountecltheieeininfsuchE position tha-t'the front end portion 453theeofprojeetsforwardly from the armr30z`z.y

-. Tneceuplingmembr 1s; Figs. 1,1 2,1 4 and?, embodies thestwofwingslandtlmay befmadeas individualpieces fromv` suitable material isuch asf-steel'plate, and`- suitably" i whicliz-'is:Vbowedfrearwardly and: extends substantially" perpendicularlythrough the lwings IStfand'SQ: The bolt" 65f'is releasablyfvheldfin:operativepositins--in the "wings" 58 and 59`by1a nuti66- -In*=operation,f= when the-framefl is operatively conmember 18, the bolt 65 extendsithroiiighlahole69inathefy tongues27 Thebolt-165fisdisposed in'the'holei69v-Witha relatixtelyeloosezslidingi t, suchf:as,..forexample, a onehalfzinchzbolt'.eXtend-ingsthrough -a 'holehaving-a di'a'm- Y etergof: tive-:eights oanfrin'eh.. Thus,:it will be seen vthat the. connectionfbetween.E thel couplinglmember 1S -andvfthe tongue 122 lwill permit thevframef 1610 pivot: freely in a: overticaluplaneonthe'boltr65 and-tovslidefreely inea n hcuizontalzdireetion4 on'zthe bolt-65 between the'wings 58 and 59.11 Also; it'fw-i-llherseen that, with this connection Y between thercouplingmember iaand'the-tongue 27, the .f

Iframetlimayf swingvflaterallyfto a -limited..extent. on the; Iboltgafrom apositien whereinlthe .tongue 27 is, dis-YLV posed-im substantially;y parallelzrelation ito the wing., 58 .i 'to a positionnwherein Ithe; tongue.. 27 isf-disposedfinisubstantially parallel relation toathe.` wingr59.

A -boss 67.,. Figgleis formedon the lowerend portions of the downwardly.-projecting ,leg,27b',of. the tongue. and a forwardly projecting adjustable stop member such graders as a. bolt 68 is threadedly mounted therein. The stop member 68 is disposed in the boss 67 -1t a position whereon the bolt 65 sufficiently to adjust its position relative to the plow P so that, as the plow P and dammer move over normal irregularities in the ground, the dammer 10 remains in proper trailing relation to the plow P. However, the stop member 68 is disposed in such position in the boss 67 that if the plow P is raised an abnormal amount relative to the dammer 10, such as, for example, when the plow P is raised above the ground to permit it to travel down a road or between fields, the stop member 68 engages a suitable portion of the plow P such as, for example, the shank S to limit the downward swinging movement of the dammer 10 relative to the plow P and cause the dammer 10 to be raised clear of the ground with the plow P as shown in Fig. 2.

In theV operation of my novel dammer, the dammer 10 is mounted in trailing position behind a furrow-forming' implement, such as, for example, the plow P, in a position to ride in the furrow F formed by a furrow forming tool such as the blade B. During the initial movement of the dammer 10 along the furrow F the collecting member 12 is disposed in load-accumulating position,

such as shown in Fig. l, wherein the shoe 34 and the portion of the bottom face 49 of the collecting member 12 adjacent to the latter extremity of the forward end portion 4S of the collecting member 12 are disposed in supporting engagement with the bottom of the furrow F and the leading edge 45a of the collecting member 12 isdisposed in upwardly spaced relation to the bottom of the furrow F.

VOn most furrow-forming implements with which-my i novel dammer 10 is normally used, the furrow-forming tool is of such shape that the bottom 71 of the furrow is rounded, or of substantially V-shape, Fig. 7, having two relatively high shoulders or sides 71a and 71h 'z and a lower central portion 71C. With the furrow F formed in this manner, the collecting member 12, when f disposed in load-accumulating position, rides on the shoulders 71a and 71b in spanning relation thereto, and

with the leading edge 45a disposed .thereabove In furrows formed by tools or implements wherein the bottom of the furrow is substantially at, the collecting i As the dammer 10 is pulled along the furrow behind the f plow P, in load-accumulating position, dirt orsoil from the sides of the furrow fall inwardly on to the upper face 48 of the collecting member 12. When a suicient load of soil has accumulated on the collecting member 12,

to overbalance the rearwardly extending weight of the wheel segment 14, the lead edge a of the collecting member 12 is forced downwardly thereby into position wherein it operatively engages the bottom 71 ofthe furrow F and catches thereon to thereby cause .the wheel segment 14 and, therefore, the collecting member 12 to rotate on the shaft 31 in a clockwise direction as viewed in Fig. l. the collecting member 12 causes the collecting member 12 to move rearwardly and turn upside down to thereby Y dump the accumulated soil in the form of a pile or a dam D across the furrow F.

ThisV rotation of the wheelsegment 14 and i The leading edgef32a of the rim 32, which terminates y' at its forward end at the arm 30b of the spider 28, is so disposed relative to the collecting member 12 thatY duringthe rotation of the wheel segment 14 and the collecting member 12, as the collecting member 12 leaves contact with the bottom 71 of the furrow, the leading edge portion 32a of the rim 32 engages the ground and,

i member 12.

therefore, continues the rotation of the Wheel segment and the Acollecting member 12 to return'these rotatingv y parts to the position shown in Fig. 1. The shoe 34' and the collecting member 12 are so constituted and arranged that upon return of the wheel segment 14 and the collecting member 12 into the load collecting position shown in Fig. 1, the engagement of the shoe 34 and the bottom face 49 of the collecting member 12 with the bottom 71 of the furrow F is eiective to check this rotation and to again retain the collecting member 12 in load-collecting position until a load has again collected on the collecting member 12 at which time another load dumping cycle of operation is initiated.

The rear end portion of the wheel segment 14 is suitably loaded to properly balance the weight of the collecting member 12, and for this purpose removable counterweights such as the counterweights 75 and 76, Fig. l, may be secured thereto by suitable means such as bolts 7S extending through the rim 32. By increasing or decreasing the weight of the counterbalancing load carried at the rear of the wheel segment 14, the intervals at which the dammer 10 will dump a dam D across the furrow F may be correspondingly increased or decreased.

In Figs. S to l2, a modified form of my invention vis shown, and like reference numerals have been used on like parts and the same reference numerals with the prex "1 have been used on parts which are similar but which have been substituted for parts of the preferred form of my invention.

In the modied form of my invention, a spider 128 having a central hub 129 and four radially projecting arms 130a, 13%, 139C, and 130:1 is rotatably mounted on the bolt 31 mounted in the frame 16.

The dammer embodies two collecting members 12 and 12a, Figs 8 and 9, the collecting member 12 being mounted on the outer end portion 51 of the arm 130a, and the collecting member 12a being mounted on the outer end 51 of the arm 130e, in a manner similar to the manner in which the collecting member 12 is mounted on the arm 30a in the form of my invention shown in Fig. l.

A substantially arcuate-shaped shoe 134, Fig. 8, is mounted at one end on the outer end portion of the arm 13012', and at the other end is secured to the outer end k portion of the arm 13th: on the bottom of the collecting The shoe 134 may be made of any suitable material such as steel and preferably comprises an integral extension of the arm d, which is secured at its inner end portion to the hub 129 by suitable fastening means such 4as a bolt 81. The end of the shoe 134 which is mounted on the arm 130d and the collecting member 12 is secured thereto by the bolt 36 which extends therethrough.

Like the shoe 34, the shoe 134 is so positioned relative to the collecting member 12 that, when the collecting member 12 is disposed in load-accumulating position, the shoe 134 is disposed in engagement with the bottom 71 of the furrow F.

A second arcuate-shaped shoe 13411 is mounted on, and extends between, the arm 130b and the outer end 51 of the arm 136C which is mounted on the bottom of the collecting member 12a. The shoe 13411 forms an integral extension of the arm 130b and is secured to the arm 130b and the collecting member 12a by a bolt 36,V

Fig. 8. The arm 13011 is connected to the hub 129'by i suitable means such as a bolt 81a, and it will be noted that I prefer to make the two units, embodying the arm 130d and the shoe 134, and the arm 130b and the shoe 134a, respectively, interchangeable.

In the dammer 110, the collecting members 12 and 12a are the shoes 134 and 134a, and these units are so disposed on the hub 129 that when either the collecting member 12`or 12a is disposed in normal load-accumulating position, the other collecting member 12a or 12, respectively, is disposed in upwardly and rearwardly projecting relation thereto.

Tcensfruenmofihs spider.izssdmedispensant Y ofthecolleetig members .12rand12ii ,'ther'eonfis suclras. to insure `:proper,balance. of: the. collecting members 12V andlZf'z duringlthe operation of my novel 4dammer 110.

. Instheroperationof .the 4modifiedformoi inyirivention.- 5 shew/nain rigs. .s :is .12,...inc1usriveg the dar-amerita is. mountedein, trailing position behind'Y a furrow-formin g .im-.- Vplemenusuchas, fior/example, the plow P, in-aposition torride-'in cthezfurrow F formed -byv the furrow-forming tool-Beas inthe damrner 101in=theoperation of the prel() ferred formfrofmy invention 'shown in Figs'.- i to 7, inf clusive. i

Duringlthe.initiallrnovement.offthe dammer Yll along theffurrowFthe collectingmembenn is;disposed Vin-the f aforementioned-.1 load-accumulating position,- with` the 175 shoe 34- and theqbottom'facemf the collecting'memberlzifdisposedvinisupportingfengagement .with the bottom 71 `rifwthe furrowF; and withithe-:leading'edge .145 ofA the collectingamemberrlZ; disposed iin: .upwardly spaced rre'-I lationfto :thefbottom-of the furrow F," Figs. t Seand :"12..l 20.V

ingmembers 125a'nd 12a to rotate' -as a unit on tleshat 31' Sin'a clockwise direction: This `rotation"ofsthel spider f 30 1283 andfthelcollecting members- 12 andi-12a'- causes the:

collecting member 2ito move'rrearwardly, as bes'tshoifn"v in'Y Fig: 10,1andturn into inverted position to thereby drimp-"tlie accumulated-'soil in the formofapile orfdam Iheldumpingfposition ofY fth'efdammer v110 '-issu'bstanl; tially' '-thatlshbwnfinFig: 10, wherein* the leading edge 45a'V theshee13i3i,--ate-bothdisposed inengagement with* tlie bottom 71 o f the furrow F. 4 Y From-thisldumpingposition;the'tspiderilZSand the collectingmembers 12 *and 12a"continue to'rotate'ina' clockwise 'direction Nas viewed 'in' Fig." 10"unti1 they are disposed*in*the'positionishown"in Fig." llc This latter position'is-'a'loadeaccumulating position for the' colle'ct- 45 ingfmembe'rj-IZ, whereinthe positionsof the collecting memberslZ and z12d' andthe shoesV 13.4 and 1344i? relative to the 'firrrowF'are `reversed from the. positions in which. theyi'are disposed :when the collecting Vmember v12. is.- dispose'dfin loadaccumulating positions asf shin/'vn in '.50 Figi 8 "and as previously discussed.

As was true with respect to the loadingofatheecollecting "meiiib`ei" '12,'l when the collecting member :12a accumuf latesal suic'ient load, the' leadin'g'edgef45'ithereof-op:` ertively'fengages the `bottorn.7'1'of the .furrow F; and the- 5 spider 128`and the collecting members 12l and-12a .rotate` in, a clockwise direction asf-viewed-in Fig.77k .11 .from the positionshown in Fig.` Vll -to the position shownin-Fig, totherebydump the load accumulated 'on the collecting member 12u-and return-the spider 128 randzthe collecting.. members 12 and 12a into load-accumulatingipositionifori the collecting:memberflL-.as showniin-Fig; 8g-toth`erebyf Y initiate' a new-cycleofaoperation Thenolectijng.members'12`and 12a;v and'itheSshoesf-lrdl'fV anden-4a;are-:sozdisposedrelativelfto eachiothrandithe spider 125;* that when-a1collecting-memberf'lZorj 12dVH arrives in load-accumulating#positioneiti'isiirctained'tin such position'.untihsuchtirnetas'aload `hasbeencoliecte'd on tlie collecting member'disposcd .in Vthat .positi'ng and,- 70 at-Y that time; anotherloadidumpingrcycleLof operation is initiated; Y

Frointhe foregoing itiwill'b seenfthat yI lhaveafidrde'd`A a novel vdamming device which'isentirely automatic'zin.: operation and which does not require vthiatnation of 75 damming ,device which'1 accomplishes Vits "intended objects l and 'purposes in a'noveland expeditious manner. Y l

Thus, while I have illustrated .anddescribed the preferredembo'dimentsofmy finventin,.it is to be understood that these are capable of variation and modiation,

andl therefore donot wishl to vbe limitedto .the precise details.set:,forth Vbutdesire to availv myself of such Y changesand alterationsas fall .withinlthepurview oi the..

Yfollowing claims.

i claim: Y Y

l. A damming device for attachment to affurrow-.formingiimplement in: trailing.- relation thereto: inaV furrow formed by; said .implementand comprising draft means.: supportingE means -freely rotatably Ymounted on 'said draft. v means and:including .a-plurality ofmeans projecting,- outwardly; 'fromf the i. center of A rotation,Y collecting; means mounted ,onfandcarried by -one toisaid projecting means# forrotationtherewith between asoil-accumulatingposition in engagement with the bottom-.ofisuch Va furrow'andf a soil-dumpingpositio'n outofengagement with the;bot.1

tomrof.- said furrow,"said collectinggineansV :being mounted on? saidzone .projectingmeansinipositionfto'project forwardly. therefromzwlienzin saidIsoil=accumulatingposition; andfelongated lslidezmeans mountedonfy and extendingFbe-fl4 tween said one projecting means and another-fofy said-f.v outwardly.projectingemeansflin tposi-tionf tti-project- Treatwardly fromsaidf'one means and' saidi'collcting '-meansinff longitudinallyextending engagement with"saidfbott'o'mt offf said furrow when' said fcollectingim'eans is: disposedfin" said soil`-accumulatingpositiom- Y whicl-'said collecting 'imeans comprises la-icc'ille'cting ment-L" ber-fhavingaeadiiig 'edge portion; andfinfwhichlsaid colf' 0 lecting. member'is' mounted-imposition 'on'said Asupporting means whereinl saidfleadi'ng'edge is disposed-'out of ground engaginglpositionfwhen'said collecting-means kis disposedl in isaidi"soil-accumulating' position rand wherein saidr col= lecting"member'isresponsiveto'predetermined downward."

pressure tliereonrtc') move* said "leading -edge into ioperative engagement with the ground to therebyinitatea 'rotation of jsaid"collecting'fmeansand said' supportngjmeans'into when'said collecting means isidi'spos'ed in sad'soil'accumuL.

lating position.

4." A" damming'de'vice as.. dened'. in claim` .land which saidsuppor'tirigjmeans iriclu'des Ja wheel .segment Y forjlrolliigjlcoritactV 'with' tlie lgroundduringv Vaf rotation .off

said Icol'lec'finglmeans' said wheel. segment-beingmounted Vorrthe outer endportion'of 'said other ,outwardlyproject-- 5. AT dmning,device-forY attachment toa?furrow-form!` ing implementin trailing. t relation.' theretoin a furrow foriedlby.I saidwimplement and comprising -.collecting-;f

a means...ioriaccumulatingV soil: thereonand dumping '.the t same-.in Ithe formofa dam. across saidffurrow; Vsaid :colev t furrow; draft..means.for..pul.ling said -icollectingvgmea'nsa"Y alongsaidfurrow-behind said implement, andisupportings; means rotatably. :onnectingsaidzcollectingimeansnoasaids. draft means for rotation from said soil-accumulating posiassume tion through said soil-dumping position and back to said Soil-accumulating position, said supporting means having a normally forwardly disposed portion, a normally rearwardly disposed portion, and a normally downwardly disposed intermediate portion interconnecting sai-d first two portions, said collecting means being so disposed on said forwardly disposed portion that, when said supporting means is disposed ins-aid furrow in operative trailing position to such an implement and no soil is accumulated on said collecting member, said intermediate portion rests on the bottom of said furrow and said collecting means is disposed in said soil-accumulating position and, when a predetermined weight of soiliis accumulated on said collecting means said supporting means is rocked thereby into position wherein said leading edge operatively engages ls-aid ground to initiate said rotation of said collecting means through said soil-dumping position.

6. A damming device for attachment to a furrow-forming implement in trailing relation thereto in a furrow formed by said implement and comprising a frame, means mounted on said frame for operatively connecting said frame to such an implement in said trailing relation, a supporting member comprising at least a segmental annular member, and a shoe mounted on said segmental annular member, said supporting member being rotatably mounted on said frame in position to be pulled thereby in said trailing relation to such an implement, said supporting member having one operative position wherein the rear end of said supporting member is disposed substantially below the center of rotation thereof and said shoe projects forwardly from said rear end below said center of rotation and in engagement with the bottom of said furrow, and another operative position wherein said shoe is disposed out of engagement with said bottom of said furrow, said supporting member being rotatable on said frame from said one position through said other Position and back to said one position while being pulled by said frame in said trailing relation, and a collecting mem` ber for accumulating soil thereon and dumping the same in a dam across said furrow, said collecting member having a leading edge and being mounted on said supporting member and rotatable therewith, said collecting member being mounted on said supporting member in such position that when the latter is disposed in said one operative position, with no soil accumulated on said collecting member, said collecting member projects forwardly of said shoe in position to accumulate soil from said furrow on said collecting member with said leading edge disposed in spaced relation to said bottom of said furrow and, when a predetermined weight of soil accumulates on said collecting member, said supporting member and said collecting member are rocked thereby into position wherein said leading edge operatively engages said bottom of said furrow to thereby initiate said rotation of said supporting member whereby said collecting member is rotated therewith to dump said accumulated soil in a dam across said furrow.

7. A damming device comprising a collecting member having a leading edge, means for drawing said collecting member along a furrow to accumulate a load thereon, and supporting means rotatably connecting said collecting member to said first mentioned means so that said collecting member may rotate relative to said rst mentioned means to dump an accumulated load in said furrow during movement of said collecting member therealong, said supporting means comprising a spider rotatably mounted on said iirst mentioned means, a substantially arcuate-shaped rim mounted on said spider, a shoe removably mounted on said spider, and means for adjusting the position of said shoe relative to said spider, said collecting member being so disposed on said supporting means that when said collecting member is disposed in operative position in said furrow to accumulate a load thereon said shoe is disposed in supporting engagement with the bottom of said furrow and said leadingv edge projects forwardly of said shoe in spaced relation to the bottom of said furrow.

8. A damming device comprising a collecting member having Ia convex lower face and a leading edge, means comprising a substantially U-shaped frame and a coupling member connected to the closed end thereof for drawing said collecting member along a furrow to accumulate a load of soil thereon, and `supporting means rotatably connecting .said collecting member to said iirst mentioned means so that said collecting member may rotate relative to said first mentioned means to dump an accumulated load of soil in said furrow during movement of said collecting member therealong, said supporting means comprising a spider journaled in the open end portion of said frame and having a plurality of outwardly projecting arms, and a substantially Iarcuate-shaped shoe mounted on said spider and extending between the free end portions of two of said arm-s, said collecting member being mounted on one of said two arms in position wherein, when said collecting member is disposed in operative position in said furrow to accumulate a load of soil thereon, said shoe and said lower face are disposed in supporting engagement with the bottom of said furrow and lsaid leading edge projects forwardly of said shoe in spaced krelation to the bottom of said furrow.

9. A damming device for attachment to the shank of a furrow-forming tool in trailing position thereto and comprising rotatable soil `collecting means, a draft member connected to said means and having a coupling plate projecting fowardly therefrom, an adjustable stop member mounted on said plate and projecting forwardly therefrom, and means for pivotally .conecting said draft member to said shank for vertical swinging movement and lateral sliding movement relative thereto, said last named means comprising a body member, clamping means on said body member for operatively connecting the latter to said shank, two wings projecting rearwardly from said body member in diverging spaced relation to each other, 'and la shaft mounted in said wings and extending horizontally through said plate, said plate being laterally slidable on said shaft between said wings, said wings being disposed in position to retain said plate in lateral position effective to retain said adjustable stop in position to engage said shank upon movement of said shank upwardly more than a predetermined amount relative to said collecting means. v

l0. A damming device comprising rdraft means, supporting means rotatably mounted on said draft means for rolling and sliding contact with the ground and including a plurality or" outwardly projecting arms, and a collecting member mounted on one of said arms and having a substantially larcuate convex bottom surface, said collecting member having a soil-accumulating position wherein said convex bottom surface is disposed in tangential engagement with the ground and -a soil-dumping position wherein said convex bottom surface is disposed out of engagement with the ground, said supporting means including lan elongated shoe mounted on and extending between said one arm and another of said arms, said shoe projecting rearwardly of said collecting member in groundengaging position when said collecting member is disposed in said soil-accumulating position, said collecting member being mounted on said one arm in position wherein said collecting member is normally disposed in said soil-accumulating position and is responsive to predetermined downward pressure thereon to initiate movement of said collecting member into said soil-dumping position to thereby initiate rotation of said supporting means and said collecting member.

ll. A damming device as dei-ined in claim 1 and which includes other collecting land elongated slide means mounted substantially diametrically opposite the rst named collecting and elongated slide means, respectively.

l2. A damming device as defined in claim l and which includes other collecting and elongated slide means and inV which said iirst mentioned and `other collecting means eachy includes a collecting member Ihaving atop facega convex Ybottom face,` and Va leading edge, and in which each of said collecting members is so arranged-on said supporting means that-said bottom face s-disposed in engagement with the bottom of said furrow and said leading Vedge'is disposed thereabove when said collecting means of whichV said-collecting member is a part Vis di'sposed in said soil-accumulating position. Y

13,'AV damming device 4for attachment to a furrowformin'g implement in trailingrre'lation thereto in a furrow formed by said Vimplement and comprising supporting means, said supporting means comprising a hub, a plurality of .arms projecting outwardly from Vsaid hub, and two elongated shoes disposed -on substantially diametricaliy opposite sides of said hub, Veach of said shoes extending between and being carried bythe outer end portions of a` bers having a forwardly projecting Vsoil-accumulating position on the respective one Vof said arms wherein said bottom surface thereof isdispesed in downwardly facing Y 12 slidngfeniggenient with the wall surfaceef said furrow, eaehofvjsaid collecting members having another position, said collecting members being sjo' disposed on' "said vsupprtingrme'ans that when either of said collecting members is -c'iisp'o's'ed in said soil-accumulatin'gtposition the otheref said collecting members is disposed in said other position and one of said shoes is disposed 'in'rearwardly extendv ing supporting engagement with said wall surface of said furrow, and draft means connected to said 'hub for pulling said collecting members along said furrow behind such an implement, said hub, said supporting means, and said Vcollecting members, being freely rotatably mounted as aV 6,2918 Crafts et al. -Dec.V 4, 1849 `87,711 vRuiznrill Mar.`9, 1869 V1,910,299 Lessig May 23, v1933k 2,187,262 Brown Jan. 16, 1940 2,227,151 Orelind Dec. 3l, 1940 2,233,331 Vratel Feb. 25, 1941

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