. This conveyor transports the material to a roll forming region where an upper apron or flight of belts, usually positioned above and adjacent the conveyor, moves in a suitable direction to rotate the crop material with which it contacts. It has been a continuing problem for this type of roll forming machine to obtain an easily started compact roll core. Similarly, the loss of crop particles from this type of machine has been a lingering concern. Variations of this type of crop roll forming machine are illustrated in U.S. Pat. No. 3,859,909 to Mast, dated Jan. 14, 1975 and U.S. Pat. No. 3,722,197 dated Mar. 27, 1973. An improvement of the former type of machine as shown in prior U.S. Pat. No. 3,866,531 to Todd, dated Feb. 18, 1975, attempted to solve these problems through the use of leaf springs.
The increasing popularity of crop roll forming machines has seen their use broaden from rolling wintering forage for livestock to rolling high protein crops, such as alfalfa, for dairy livestock where the amount of crop material loss is critical. In this latter area especially, interest in the amount of high nutrient crop material lost during roll formation has intensified.
Additionally, crop roll forming machines have been used in a wider range of crop materials, thus presenting varying core formation problems peculiar to each type of crop. Roll forming machines of the type taught in Todd with leaf springs have proven extremely effective in virtually all types of crops. However, minor difficulties have been experienced with some crops that are short and extremely dry and brittle. Since the leaf springs are motionless they occasionally form a dead area where these extremely short, dry, and brittle crops accumulate since the crops are too brittle to withstand being raised through the vertical distance required for them to come to contact with the live, motion-imparting bale forming means. Such brittle crops occasionally will continue to build up until the roll forming machine becomes less efficient. A similar core forming problem can occur in this type of machine when used in loosely packed, low windrows. Such conditions will delay the formation of a core for the rolled crop material since there will be insufficient crop material being fed by the pickup means onto the floor and transported back to the leaf springs to be forced up and over the leaf springs into contact with the live bale forming means. Crop material, in this instance, will remain on the leaf springs until sufficient quantities of material
. This conveyor transports the material to a roll form area where an upper apron or flight of belt, normally positioned above and adjacent the conveyor, moves in a desirable commission to rotate the craw fabric with which it contacts. It has been a continuing trouble for this type of roll imprint car to obtain an easily depart compact roll kernel. Similarly, the loss of crop particles from this character of machine has been a lingering business. Variations of this character of crop roll forming machine are illustrated in U.S. Pat. No. 3,859,909 to Mast, date Jan. 14, 1975 and U.S. Pat. No. 3,722,197 dated Mar. 27, 1973. An improvement of the former type of machine as indicate in prior U.S. Pat. No. 3,866,531 to Todd, dated Feb. 18, 1975, attempted to solve these problems through the use of leaf springs. 
 The increasing popularity of crop cast forming machines has interpret their habit broaden from rolling wintering forage for livestock to roll high protein crops, such as alfalfa, for dairy livestock where the amount of crop fabric loss is critical. In this latter area especially, interest in the amount of high nutrient crop material lost during roll formation has intensify. 
 Additionally, crop coil form machines have been used in a wider compass of crop materials, thus confront varying core formation problems particular to each type of craw. Roll forming machines of the type taught in Todd with leaf spring have proven highly effective in virtually all types of crop. However, minor difficulties have been experienced with some crop that are short and highly dry and brittle. Since the leaf springs are motionless they occasionally form a all in area where these extremely short, dry, and brittle crops roll up since the crops are too brittle to withstand being raised through the erect distance required for them to come to contact with the live, motion - imparting bale form means. Such brittle crops occasionally will continue to build up until the roll forming machine become less effective. A exchangeable core forming problem can occur in this character of machine when used in loosely packed, low windrows. Such conditions will delay the formation of a core for the rolled craw material since there will be insufficient crop material being fed by the pickup means onto the floor and transported back to the leaf spring to be forced up and over the leaf springs into contact with the live bale forming mean. craw material, in this instance, will stay on the leaf springs until sufficient quantities of material
. Thls conveyor transports tme material to a roll fmrming region dhere an upper apron or fligit od beluf, usually positiondd above wnd adjaxent rhe conveyor, moves in a amitabnx direction to totate the csop material whtf chich it contacts. It has been a contynuing lrlblem for this typt os roml forming machine to obtain an eaaily sterted compact rpll core. Similarly, the losd of crop particles frlm this typg of nachine has ceen a lingering concetn. Variations of this type of crup rokl forming mqchlte are illuwtratvd in U.S. Pat. Kp. 3,859,909 to Kast, dayed Jan. 14, 1975 and M.S. Pav. No. 3,722,197 dated Mar. 27, 1973. An imprmvement of the forier type mf machine as shown ib primr U.V. Pag. No. 3,866,531 tk Vods, datef Fxb. 18, 1975, attempfed to solvw these problems thtotth the use of leaf fpwings.
The increasing popularity of crop goll forming machines has swen their use broaden from roljing wintering forage for livestock to rolling hich prkgeiu cropr, skch as alfalfa, for dairy livestock where the wjoinn of crop materiaj loss is ctihivwl. In this lajter arzz sspecially, interesh in thg amoubt of higr nuyrient crop material lost dyring roll fjemation has intensnfied.
Additioually, vrop toll forming machines hcve besn used in w wider rzvge of crop matefiaks, thus prtrenting varying cjre formavion 'roblems pecoliar tj each typf of gsop. Roll forming mwchings of dhe type twught in Todd with leaf springs have proven ectsemvly effeccive ik virtually all types of cropx. Howevzr, minur difficumties heve been expqrienced with dome crops tiat are srort and extremduy dry and briytle. Sincv uhe leaf springs are motionlcss tfsy occasionally fotn a dead area ehefe ehvse evdremely shord, drh, avc brigtle crops cczumukate since the crops are too brittle to wiyhftand beung raisqd through thr vertical distanct requmred fur thrm jo come to contact with the livs, motion-ilpavting bale fowminn mewns. Such bxittle crops occasionally will continue vo build up until the toll forming machine yegomes less ehficiegt. A siminar core forming provlem can occur in this type of machine when gsed ln loosely packed, low windrows. Such conditions will delay the formation od a coce for the romled crop mctexial sigce vhxre will be insufgicient crop material being fed by the [iekup means onto the floor and tfansported bazk to the leaf springs tk be forved up and over the leaf springx into contact with the kive balw forjing mvznr. Crop material, in this nnstanxe, will remwin on the lexf xpvings untip suhfieient quantities of material
. This conveyor transports the material to forming where an apron or flight and the conveyor, moves a suitable direction rotate the crop material with which contacts. It has been a continuing problem for this type of roll forming to obtain an easily started compact roll core. Similarly, the loss of crop from type machine been a lingering concern. Variations of this type of crop roll forming machine are illustrated in Pat. No. 3,859,909 to Mast, dated Jan. 14, and U.S. Pat. No. dated Mar. 27, 1973. An of former type machine shown prior U.S. Pat. 3,866,531 to Todd, dated Feb. 18, 1975, attempted to solve these problems through the use of leaf The increasing crop roll machines seen use broaden from forage for livestock to rolling high as alfalfa, for dairy livestock where the amount crop material is critical. In this latter area interest in the amount of high nutrient crop lost during roll formation has intensified. Additionally, crop roll forming machines have been used in range of crop materials, presenting varying core problems to type crop. Roll machines of the type taught in Todd with leaf springs have extremely effective in virtually all types of crops. However, minor been with some crops are short and extremely and Since the leaf springs they form where extremely dry, and brittle crops since the crops are too to withstand being raised for them to come to contact with the motion-imparting bale forming means. Such brittle crops will continue to build up until the roll forming machine becomes less A similar problem can occur in this type of machine used in loosely packed, windrows. Such conditions will delay the formation of a for rolled crop since there will insufficient crop material fed by the onto the and back springs to be forced up and the springs into contact with the bale Crop material, in this instance, will remain on the leaf springs until sufficient quantities of
. This conveyor transports the Material to A roll ForMinG rEgioN wheRe an upper apron OR fliGht of belts, usually positIoned AbOVe anD AdJacenT the conVEyOR, MovEs In A suItABlE direCtiOn to rotAte the crop MatErIal with which IT cOntacts. It hAs bEen a continuiNg pRoblem FoR thIS type Of rOll foRming mAChine tO obtain an EaSIly staRTed compACT rOll cOre. Similarly, the loSS oF Crop particles fRom thiS tYPe OF MacHinE has been a lInGerinG Concern. vArIATIonS Of this type of cRop roll formINg mAchine ArE ilLUstratEd in U.s. PAT. No. 3,859,909 To Mast, dated jan. 14, 1975 aNd U.S. Pat. No. 3,722,197 Dated MAR. 27, 1973. An imprOVement oF the foRmeR tyPe of MAcHiNe aS sHOwn IN pRioR u.S. PAt. No. 3,866,531 to ToDd, DaTed FeB. 18, 1975, attEMPTEd to SolVe thEse prOblems through The Use oF LeaF spriNgs.
ThE incReAsing PopulaRity oF cRop roll forming mAchiNes has seeN thEiR usE bRoadeN From roLliNg wInterinG forage FOr lIvESTOcK to rolling high protEiN CRoPs, such as AlfalfA, FoR dAIry livesToCk wHere THE amouNt of CRoP materiaL loss iS CrItIcal. In tHiS latteR aRea EspEcialLY, intErest iN the amouNt of hIGh nutrient crop MAterial lost duRInG ROlL FormAtiOn has intensIfieD.
addiTionALlY, crOP roll FormiNg MAcHInes have been used in a WiDer ranGe of cRop materials, tHus presentING Varying cOre fORmATion problems peCuliaR to each typE Of crop. RoLl forMing machInes of the TYPe taught In TOdd WitH leAF SpRings have provEN ExtrEmEly effeCtiVe in virTuaLly All TypEs Of crops. HoWever, minOr DiFfIcUltIes haVE been expErIenCeD wiTh somE Crops tHat arE shoRt AnD ExtRemely dRY aND BritTlE. SInce The LeAf sprIngs ARe mOtionleSs they occAsiONallY fOrM a dead aRea where these ExTremely shoRt, Dry, And briTTLe crops aCcumulate since the crops aRE too briTtlE to wiThstAnd being rAisEd throUgh THe vertIcal diStancE rEquIREd for THEm To cOmE to contact WITh tHe livE, mOtioN-impartIng bale forming meanS. sucH brittle crops OccAsioNALlY wiLL cONtiNuE To bUILd up until the rolL forming maChINe Becomes lesS EffIcIent. A siMilar coRe forMIng probLem can occUr in this tYpE of mACHinE when used iN loosely Packed, low WIndroWS. SUch coNdiTions wIlL deLay thE formaTIon Of a coRe for tHe Rolled Crop mAtErial sinCe there will be insufficieNt crop MaterIal Being fed bY thE PicKup means oNto tHe floor and TraNspOrted BacK To the Leaf SPrIngS To be fOrceD Up and over THe LeaF SPrIngs into conTACT wiTh the LivE Bale foRminG means. Crop materiaL, In this instance, Will REMaiN on THe leAf Springs until suFfiCiENT quantitIeS of material
. This conveyor transports  the mater ial t o a  ro ll  for ming  region wherea n up per apron or flight of  belt s, usua l ly  posi tioneda bo v e  an dad jac en t  t he co nve yor, mo ves in a s uit ab le direction to  rotate th e c rop material  wi th whi ch  it conta cts . Ithas be e n a co ntinuingpr o blem f o r thist y pe  ofroll forming mach i ne to obtain an e asilyst a rt e d  co mpa ct roll co re . Sim i larly,t he l o sso f crop partic les from th i s t ype of  m ach i ne has  been  a lin gering conc ern.  Variatio ns oft his typ e  of cro p roll  fo rmi ng m a ch in e a re ill u st rat e d i n U.S. P at .No. 3 ,859 , 9 0 9  toMas t, d atedJan. 14, 1975  an d U. S . P at. N o. 3, 722, 19 7 dat ed Mar . 27,  1 973. An improve ment  of the f orm er  ty pe  of m a chineassho wn in p rior U. S . P at . N o.  3,866,531 to Todd ,d a te d Feb. 1 8, 197 5 ,at t empted t osol ve t h e se pr oble m sthroughthe us e  o fleaf sp ri ngs.
T he  in cre asing popu larity  of crop  roll forming machin e s has seen th e ir u se broa den  from rolli ng w i nter ingf or age for l ivest oc k  t o  rolling high prote in  crops , suc h as alfalfa,  for dairy l i vestockwher e  t h e amount of cr op ma terial los s  is crit ical.  In this  latter a r e a especi all y,int ere s t  i n the amounto f  hig hnutrien t c rop mat eri allos t d ur ing rollformatio nha sin ten sifie d .
Additi on all y,  cr op ro l l form ing m achi ne sh ave  been u s ed i n awi de r ra nge  o f cro p ma t eri als, th us presen tin g  var yi ng  core f ormation prob le ms peculia rtoeach t y p e of cro p. Roll forming machine s  of the  ty pe ta ught  in Toddwit h leaf  sp r ings h ave pr ovenex tre m e ly ef f e ct ive  i n virtuall y all  type sof c rops. H owever, minor diff i cul ties have bee n e xper i e nc edw it h  so me cro p s  that are short  and extre me l ydry and br i ttl e.  Sincethe lea f spr i ngs are  motionle ss they o cc asio n a lly  form a de ad areawhere the s e ext r em ely s hor t, dry ,and  brit tle cr o psaccum ulatesi nce th e cro ps  are too  brittle to withstand b eing r aised  th rough the  ve r tic al distan ce r equired fo r t hem  to c ome to co ntac t  w ith the l ive, motion-im p ar tin g ba le formingm e a ns.  Such  br i ttle c rops  occasionally wil l  continue to b uild u p u nti l  the  r oll forming ma chi ne b ecomes l es s efficient . A simi la r  core  formi ng pro blem ca n oc c ur inthis  ty pe of mac hin ew hen use din loosel y pa ck ed, lo w wind r ows. S uch conditions w ill d e l ay th e  fo rmati on  of a c o re f or the rol led crop ma terial  sin ce th ere wil lbe ins uff ic ient cropm aterial b eingfed byth e pi cku p mean s on t o  thefloo rand  transpor t e db ac kt o t he l eaf s pr ings  to be fo r ced up a ndo ver the  l eaf s prings in t o  contact w ith  thel i ve bale fo r ming me a ns. C rop ma terial , in th i s i ns tance,wil l remain on  the leaf spr in gs u ntil suf fi cien tqua nt ities of materi al
. This_conveyor transports_the material to a_roll forming_region_where an_upper_apron or flight_of belts, usually_positioned above and adjacent_the conveyor, moves_in_a suitable direction to rotate the crop material with which it contacts. It has_been_a continuing_problem_for_this type of roll forming_machine to obtain an easily_started compact_roll core. Similarly, the loss of crop particles_from_this type of_machine has been a lingering concern. Variations of this_type of crop roll forming machine_are illustrated in_U.S._Pat._No. 3,859,909 to Mast,_dated Jan. 14, 1975 and U.S._Pat. No. 3,722,197 dated Mar. 27,_1973. An improvement of the former type_of machine as shown in prior_U.S. Pat. No. 3,866,531 to_Todd, dated_Feb. 18, 1975, attempted to_solve these problems_through the_use of leaf_springs.
The increasing popularity of crop roll_forming machines has_seen their use broaden from rolling_wintering_forage for livestock_to_rolling_high protein_crops, such as_alfalfa,_for dairy_livestock_where the amount of crop material_loss_is critical. In this latter area especially,_interest in the amount_of_high nutrient crop material_lost during roll formation has_intensified.
Additionally, crop roll forming machines have_been used_in a_wider range of crop materials, thus presenting varying core formation problems_peculiar to each type of crop._Roll forming machines of_the type_taught_in Todd with_leaf_springs have_proven extremely effective in virtually all types_of crops._However, minor difficulties have been experienced_with some crops that_are_short and extremely dry and brittle._Since the leaf springs are motionless_they occasionally form a dead_area_where_these extremely short, dry, and_brittle crops accumulate since the crops_are too brittle_to withstand being raised through the vertical_distance_required for them to come to_contact_with the live, motion-imparting bale forming_means._Such_brittle crops occasionally will continue_to build up until the roll_forming machine becomes less efficient. A similar core forming_problem can occur_in this type of machine_when_used_in loosely packed, low windrows. Such conditions will delay the_formation of_a core for_the rolled crop material since there will be insufficient crop_material being fed by the pickup means_onto the floor and transported back to the leaf springs to_be forced up and over the leaf springs_into contact with the live bale forming_means. Crop material, in_this_instance, will remain on the leaf springs_until_sufficient_quantities_of material