US1769665A - Grapple - Google Patents

Description

' Julyl, 1930.

F. FA'RNswoRTH GRAPPLE Filed May '7, 1929 A ttor ne y `20 principles of my invention.

Patented July'l, 1930 i i. j i 1 Y [UNITED STATES rA'rENr :oFF-ICE y i i y `i.ringeimmiv Lrnimswoirrn, or cniimxsrciv,U wAsHrivGroN Y I i GRAPE-@111 A. j. 'A Application filed May?, 1229. Nog.m361,15`2. s Y

My present invention relates to an imtionsrto facilitate mountin-gLofthe headon proved grapple which, While adaptedr for the end ofthe draw bar, and-,the head is various uses is particularly designed for use fashioned with `a central fhole l() for this in hauling logs for storage or transportation purpose. 1 f f. 4 f ,Y v. I

I purposes.l vThe'grapple is of that type utiv A plurality `of l'grappling tongs, here. 55

e lizing aplurality of hooked tongs, pivotally shown as four, are indicated at: 11 and-proj supported or hinged in a housing, and draft vided With Lgrapplings hooks VV11?*l *for inr-l devices are. used With the tongs for grap.- Vpingement into the surfacejoffthe log L; pling the logand holding the log during the These tongs .are radially or diametrically V 10 hauling or lifting operation. Y arranged'about theaxial centerof the draw 60 The invention consists in certain novel barV and dravv .head and :they: are `carried combinations and arrangements of parts as at thexzlarge, open end ofthe housingain v will be hereinaftermore fully set forth and perforated ears 12 on hinge'foripivotv pins claimed. In the accompanying drawings I 13; These perforated earsareintegral With I5 have illustrated one complete example of fulcruin blocks 114 (four in number) each of 65 the physical embodiment of my inventiony in 'Whichhas a y:pair of flanges 15,and these Which kthe parts are combined and arranged blocks of. T+shape are carried'in compleaccording to thejbest mode Iv` have thus: far. mentary T-shapedfslots 16 inthe edge ofthe devised for the practical application of the housing;r` The .T-.slots 'are ofcourse diamet- 'v s rically arrangedin the edge iof the housing 70 Figure 1 is a view showing the grapple and thefull vvallf of the cross-portion of the attached to the end of a log. Figure 2 is VT-slot is beveled, as indicated insFigures l3 a face vievv of the grapple as seen from the and-A -for` co-action Yvvith Aa complementary right in Figure l. Figure 3 is an enlarged face ofthe fulcrum block,to'insure'a Wedge *.25 sectional View of the grapple at line 3-7-3 action-'When' the fulcrum block is forcediin- '75k v of Figure 1 with the hooks open. Figure 4: to its slot.l After.thefulcrum block'isl in is a View similar to Figure 3 but with the positionyit lis locked inplacebyQthe use of lhooks in closed position. Figure 5 is a dea -set screw or bolty 17. The .T-slots'jandtheV tail perspective View of one of the tapered AT-block's are of standardsizes andishapes,

30 nuts used in the draw head. Figure 6 is a and -theblocks may readily be; renewed .Qiso i i 35 In carrying out my 'invention I utilize a "4 of the housing, andthe bar is providedvvith perspective view of the halved draw head. replaced in case of breakaga Flgu'e 7 1S a- PBI'SPQCG VleW 0f Que of the `Each grappling tong istfashii'oned vfvith'an A fulcrum blocks earned m the hQuSmg 0f the angular lever arm 18l at itspivoted "end, and grapplebettveenthe leverarm and th'edrawhead a Y link connection 19 is'provded saidflink conhousmg l of .metal and Preferably. Wltil a nections 'beingpivoted' to the le'ver'arm'` at taierd. etlrlosurmc anaanglgs 20; "At 2l the 4links are pivoted infeye-bolts cyin rica ore raw r :'r through a hole 8f in the'smaller closed end 222 and these( eyebplts ale provlqef Wlth clampnuts 25 that are maderesilient by 90 an eye 4 to Which the yhoisting or hauling S1-15mn@ 01' 5131110101113 @t 243 Th? Clamp. nuts chain 5`is attached. The draw bar extends are taPerd 01 flusto @meal 1n `-$hape and axially through the longitudinal center ofthey fflt, lnZOvYCOllPlemGnfary;kseatsf25 that the bol-e2 and the end 0f the bar Within areenlargedlfrom the bolt holes ofthe draw i $145 the bore is fashioned With a reduced portion head. Loek nuts 26 arealso provided for 95 6 having an end shoulder 7 and an end "the eye-bolts, `andit will be apparentgthat collar 8. The halved, round, draw head `9 'by turning homelthese lock nuts .against the is carried on the reduced end of the draw 'larger-endofjthe clamp nuts, the split porlbar, and slidable yin the bore of the houstions :of the latter Vlare compressedfand 0 ing, said vdraw `head being `made in tvvo secclamped/over' the 'threadsof the boltsfor 100 the purpose of anchorngthe holts in Aerr.

grapple, With Vthe i fourffdiametrical vpoints the dra'wjhead- 4 y Tofaeilitate theformation of the Tslots slotsareextended through the Wall of the .li'ousing, andthe housing. is provided with a 'eounterbore or annular s`eat27vv in which a -bushing`-28iis fittedifto close' theopenings at"V f` `the inner ends ofthe T-slots. Theffuloruln blocksand thehbusliingprovide a bearin ure 4.

irnp'ingelaterally against thelfouter face Lof aiplurality of T-slots and a countersunk Vbushing closing the inner ends of said slots,

of `T-lolocks in the slots and set screws for thek blocks, said blocks having perforated ears and grappling hooks pivoted in the ears, lever arms on the hooks., a draw bar and a drawheadin the housing, `eyeloolts carried Y by said head, and links connecting said eyebolts `,and the lever arms.

K l In testimony whereof I affix rnv signature. ...for the leverfrrnifofthe grappling ihoolo* f' when thelstrain of a pull Vis placedfon .theA p theypartsn position of Figi As indicated: inf Fgiil iei Heek@ il# u thelog.` andlasfthe draw orlpuill `on-the` chain i gis exerted, the hooks are forced to ygrapple the log and holdfit for Vthe desired manipu-jV readily fbehaujledoveraJsurfae fand'swung Y I used. 1Ato swingnfor manipulate they log With Vto perpendicular Xpositioni` Where iti `isxsusf 7 Y pended ,perpendicular-tothe ground, and `in YlgreaterfreedomEthanifthelogswere'fsusf lgleniledatananglehtoztheperpendicular;y'-

" tionfof Figuresiand 4.; In .the former lig# f The ationoflthedraw barand draw head i may readily be:v understood from an .inspeeurethe grapplingfhooks are open and it will `loe apparent-.that an IaxialwpullEon the. draw `har. :will cause thelevers 118 `tothe swung `infV i )l l r iwardly byV theylinks V19 `las theglatter are Vdrawn into substantial [alinement With .the

eyebolts'22; lAsthetlinks .arealinedwith i 4theholtsthe inner ,endsof `.the bolts Contact pWith-.thefbasewalllofJthefbore of the hous- Y v l Ving; land ,the .angularfedges rofl the :levers `1,8 `cont-act:.with.theifulcrulnlolocls andthe bushing. Thlsethelstrainsoflthe pull on the .chai-n -are distributed uniformly throughout .'oiency.

' the :parts of thedeviceanld the grapple peri fHavngthusfiillvdeseribed navinvention, i

. fLettersPatentisi- '50 .what I claim Vlas new and desire to secure by v 1. [The combination p plurality of gmlplngf hooks pivotany Supp POId' thereon, -of adraw 4bar and draw l head, eyebolts in the head, linksvoonnectng `said -lolts vWith the hooks, tapered', resilient r clamp nuts' on the bolts andeonplementary Y nuts in the'head, and lock nuts Thecombinaption with amusing having a-Kpluralty ofTslots, T-blocks intsaid slotsv V4andifasteningmeans `forthe zbloeks,`z of grapplingfhooks pivotedfn thehlocks andV lever .armspnthelhookala draw :barand draw d headin theihousi'ng,.and linked connections l. i

G5 betweensaid armsfand' said head.

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