US1626793A - Hand lift for harrows - Google Patents

Description

' May 'af-,192?.A

R. M..DE ROSA HAND uw FOR filmnews Filed Jne 28, 1926 INVENTOR B .M DeRQsa ATTORN EY i Patented May 3, 1927.

f .HAND hier ronlinnnows.

"Application nieuwe' v2e, 192e. semaine'. 119,004.' i

.Y 'lhisv invention relatestoimprovements in Fig. Qfis similar view"showingtheteeth .3 devices for raising' an'dlowering' the ground lowered.; 1 l' i i i engaging members of' harrowsgmy'4 principal Referringfnow more particularlytofthe'u f' v objectsbeing toprovidea handliftimech! charactersoreference 'ontheidrawingsrthe; 55v v 45 anism, preferablyin'theform'oanattachnumeral: denotes the fr'a'r'neoflithef jharrowV ment, to be appliedto the ordinary operat-A lhaving a plurality/'loflongitudinally?spaced:

* ing lever of the harrows,'by. means of lwhich transverse shaftsor ysimilar* turnable "ele-1 y 4 said ilevenmay ,be more easily' operated "to ments on which 'are lixedthefsprin'g teeth-"8.. raise and"lower'the"groundengaging me'm-v Projecting upwardly "fromthemembers-Q V 60 bers lthan is at present the' case; and 'iso are arms l .connected by f a common 'linl 5f' constructedthatit' isl not'necessary'to" stop rlhe rearmostarm 4 hasian upwardlyffexr theprogresso'f heharro'wjin orderto move tending lever 6 associatedtherewith,by` i saidmembers, and thesame `will beaute m'eans'o'fwhich'saidlarmsmayibe'swungone f' matically held in either raised or lowered way o1- the other, andthe teeth consequently 65` positions withoutthe need of anyfpawlI and. raised from.onloweredfintothefgroundf` ratchet'orsimilar holding mechanism. My lThe 1ratchet and quadrant] mechanism i handileverdevice is 'alsov'so c onstructedlasto usually` associated4 ith thefleverfto enable be'very easy to operate,r4 and there isj nothing the saine to bemaintained set, Ii dofnot need v ,toget out of orderor :failto function; l` I or use'yaid hencehave omitted lshowing-'the 70 1 20 "While my device unctionsrwith a'single sameon the-drawing. 1futhewharrowwiswfa lever harrow., it isr especially valuable incontwo or three section implement,there' arefza ..1 nectiohfwith 'two or three sectionha'rrows likel number@oileversandarm and'linkf' conhaving a corresponding number ofjlevers, nections,y all said levers being ,disposed fin "t: i since withmy device*appli'edftheretoallithe paralleltransverse-alinements s u 75 'leversare operated simultaneously. This is My' improvedhanjdileverfdeviceto be'ap-y obviously a greatfimprovement over""`v`rthe {plied/to such"standardfparts comprises-fa f `prc-s'ent construction which` necessitates each longitudinal "arm 7 pivotedoniabracket lor lever being operated individually, and with lugfSjwhich is mounted fat theifront offithe` lthe, employment of considerable` physical frame 1w The opposite endolrsaidlarm'is 8G lior't. L Y Lpivotedfo'ntol 'another fand longerarnfr'i9;1i`11' t n i .l 'I'ha've here'shownand described'rtheop'- termediate'the'ends'owthelatter;V )Thellower erating device as being japplied'vto Aa spring end of the armQ is'fpivotedfonto abracket L. i toothharrow, but it is obvious thatV said del() which-is claniped'ontothe'lever'ginterfy vice-can be utilized in connectionfwith :the medi'atefiits endsv and'in-rontof thesaine 185 controllever of a'lhar'row'having anyform -by suitable meansysueh 1 as -Uii-bolts lljlf: of Vground'engaging'members l two or morelever's arefprovided*onithe-im-` y A lurtherobject "of the inventionisI to -fplement a transverse beamlQ/isrprovided in- [produc'ea'simple' and inexpensive device and connection' with the-'bracket -10-sofasjztof exfyet one which will beexceedinglyeiiective i ltend Iacross 'all the levers vinifrontmf fthe 90 40 'for thejpurposefor which is designed. f same and to beclamped thereto.v The other 'l 'Thesev objects I accomplish by means-"of `endofthe:arm 9has anangul'arfextension 13 4such `structure-and relative arrangementoi vprojecting atan acutelangle to'thelongitudifparts "as will fullyappear by a fperusalof nal plane of saidarm inwan upwardand-forthe following specification andA claims@t .ward direction'whenlsaidarin'is horizontalv95` j QiIn'the drawings similar` characterso'fi'el V"lydisposed. Apull rope 14 i or the *like is erence' yindicate corresponding-parts infthe applied to the'outervendioi this-extension. vseveral'views:' 'A tension spring 15 extendsrlr'omthegpiv#` Fig. '1 is a side elevation ofangordinary Votalconnectionofthearm-9 with'the bracket 'spring tooth'harrowshowingmyfhand lever "lOto afeonnection with thelvarmfrxinterme- 100 devicefapplied thereto and with-the teethv in diate'itsjends; The-9 ls provided with theirraised positions. l f f-ajplurality of longitudinally spaced holes i j pivotal connection ofthe bolt 17 4with the,

lor pastv dead-center position with respect to 16, so that the connecting bolt or pin 17 of .thearm 7 may be applied to any onel of said holes andthus alter the operative length of the arms when thelatter'are ina certain position, and consequentlyfthe depth to which the teeth may project maybe altered, as will be hereinafter seen. f

The arms v7 and 9-are soarranged relaltive to eachother that when the teeth are out of the ground, and the lever 6 and arms 4 are disposed ata forwardangle, the arm, 9 will also be disposed at a forwardjangle,

the extension 13:ata vrearward angle, and

the arm 9Y at an upward and rearwardl angle.y The' spring 15 is then belowA the arm 9 and is in tension. The springV there- `fore constantly acts to `pull the lever 6 fur-A nther' forward but .cannot do so since -it also tendsto pullthelarm 7 downward and rear-V vvardly.y Consequently ,the spring pressure 'gis equalized andthe lever and arm `structures are.` maintained in kthe positions to which-they havebeen moved by arearwa'rd pull on :the extension 13 by means of the When it isv desiredto lower the teeth the 4 rope 14 is pulled from'ahead.L This causes llever 6` rearwardly "about" lits axis.

the arm. .9 to beswung about the pin as an axis,.since the rod 7 is rigid. ,The'upper i yportion .ofthea'rm 9L therefore movesI forward. and 'downward and the lowerportion iswmoved rearwardly, turning on its connection with. the bracket 10-andk forcingrhe is causes a rearward;1'otation ofthe shaft@ and consequently a rearward rotation of the teeth 3 Vtoctake place. .The ,pullbn the-.rope

,'14 is maintainedquntil theV arms l7l and V'9 move past along'itudinally alinedv position,

-thevilocationvof'thejpin 17 relative to the 1opposite y'pivoted-,ends of the 'arms 7 and 9 with the frame a-ndlever respectively. 'The Spring-15 then being still in tension acts to increasev this past dead-center position, las

Will 'be evident, preventing any tendency of they teeth tox'leavey the ground. l

yFurther downward movement iof the arms isf limited `,by thecforwarfd en'd of the arm Zhengaging the yforward .shaft 2 or the framel.,`

The .rearward angular setting of thelever 6 and-associated parts and consequently-the depth to which the teeth will enter the y ground is controlled by' altering the point of'conne'ction of the bolt. 17 with respectto `the length of 'theA arm ,9, since, as will be evident, .when the arms are in the p last :named position, theoperativelengthpof said arms between their opposed pivots. will k-b'e shortened'xlor lengthened by c liang-ingthe bolt 17 from yonefto; another 1 of .the 'l longitudinally spaced holes16.

Vhile I have specifically .described and la device 'aslsubstantially fulfills the objects of the invention as set forth herein.

kWhile this specification sets forth in de-i tail the presentl and preferred construction of the device`,"still 'in practice suchl deviations from, such detail may beresorted to` as do not, formfj a departure fromv vthe `spirit of the invention, 'as vdefined by ythe appended claims. l

Having thus described my invention whatl and desire to'se I .claim as new and useful cure by Letters Patentis:

\1. AV hand-lift structure for a harrow,l

said harrow including ay frame, ground engaging members turnably mounted thereon, a vlongitudinally movable lever pivoted on the frame` and meansoperatively connecting the lever( and membersl to causey the latter to be turned with 'they movement of the lever;

kso

comprisingv anfarm,pivotallyfconnected to .c

the lever andvextending Iahead ofthe same, anotherarm pivotedatone end onto said first named army and at its other 'endjont'o the frame at the forward end lof the same, an operating member attached to the outer endy of the first named arm, said arms when I the: teethA are out of,- the ground projectin upwardly at an angle to each' other vand whenthe teeth are in the groundr moving down past dead center with respect to the y i pivotal connections at theends of the arms, "y

and springmeans applied to the arms to maintain the same in either'of-thek above named positions. ,l l

2. Av hand-lift structure forv a harrow,

said harrowvr including a frame, ground engaging' members turnably mounted thereon, a longitudinally movable lever pivoted 4on the frame and means operatively connecting the ylever and vmembersfto cause thelatter to beturned with the movementof the lever;

comprising an arm pivotally connected to the lever and extendingahead ofthe same, another arm'piv-oted at onezend onto said first named arm and at its other end` onto o y theframe at the forward end of the same,

an operating memberattached to the outer end of the yfirst named arm, said arms vwhen the teeth yare out of ythe ground'projecting V.upwardly at an angle to each other and` when the teeth are in the ground moving down past/dead center with respect `to .the pivotalconnections at the ends of the arms,

and a compression spring connected yto the vlirst named'arm below thefconnection of the Y rsecond named arm therewith yandy to the second lnamed arm -intermediate its ends.

3. A hand-lift vstructure for a harrow,

sai-d harrow inoludinga frame, ground engaging members turnably mounted thereon, a longitudinally movable lever pivoted on the frame and means operatively connecting the lever and members to cause the latter lto be turned with the movement of the lever 5 comprising an arm pivotally connected to the lever and extending ahead of the same,

another arm pivoted at one end onto said `first named arm adjacent `projecting ahead of said first namedv arm and at its other end onto 10 i' the frame atthe forward end of the Same, and a further arm rigidly connected to the upward angle therewith.

RONALD' M. De ROSA;

its outer end *andy` '4 armat an acute l y i 15 In testimony whereof affix my signature:V v n

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