US1739938A - Crane attachment for tractors - Google Patents

Description

Dec. 17, 1929. J, B, BARNETT 1,739,938

CRANE ATTACHMENT FOR TRAGTORS Filed July 2l. 1928 2 Sheets-Sheet l Dec.'l7, 1929. J. B. BARNETT CRANE ATTACHMENT FOR TRAGTORS 2 Sheets-Sheet Filed July4 2l, 1928 Patented Dec. 17, 1929 UTE JOHN B; BARNETT, oriioLnInAY, TEXAS nppiieatio inea July 21, ieaa seriai 110,294,470.;

rThis invention relates to a crane attachment tor tractors, and has more particular reference to means associated with a winch attachment for vtractors to provide a crane, tor enabling use of the tractor in lifting Vand.

transporting heavy objects or articles. v

The primary object ot the inventionis to provide a simple means'ior readily converting a Winch attachment tor tractors into an efcient crane. f A further object is to provide a device ot the above kind including a boom Which is simplel and durable in construction and light in Weight, and efficient means to mount the rbooin on 'the-front ot the Winch attachment trame in position to cooperate With the Winding drum ot the Winch.

Other object sWill'appear as the nature ot the invention is better understood, andthe 2o same consists in the novel form, combination and arrangement ot parts hereinatter'vmore `fully described, shown inv the accompanying' drawings vand claimed.

In the drawings:

and partly iii section, of a tractor .equipped with a crane attachment embodying the present invention. Y t

Figure 2 isa front elevational Avievv thereof.

Figure ,3 is an enlarged fragmentary vertical section ot the boom and adjacent parts, takenv on line 3 3 ot Figure l'.V

Figure 4 isan eniarged fragmentary perspective vview ot an end of one of the side trame members ot the Winch and the attached iiioiiiitingbracket for the boom of the crane; and 1 Figure 5 is an Venlarged fragmentary Vsec-- tion on line'- ot Figure l.

40 Referring more in detail to the drawings',

5 indicates a conventional'torm'ot tractor having 'a Winch mounted thereon, Which may be of any Well known or preferred construcf tion', and whichV embodies side trame members 6 disposedatopposite sidesot the tractor and projecting forwardlyv beyond. th'e front end ot the latter, the rear ends or" the trame members. 6 being fastened tothe'rear. axle housingo't the tractor as at 7, and thevind- Figure 1 is a vievv,rpartly in side elevation Y y 'movement iii-the Vusual Way.

ing drum. 8 ot the -Winch being mounted onl the projecting ends of the tramemember's 6 as shown. 11i the embodiment illustrated," thev drum 8 is operatively connectedto the j laterally proj ectingipovver-take-ofishaft; 9

ot thel tractorby means including sprocket gearii'ig 10,1Whereby the drum 8 may beV opy erated by the engine ofthe tractorindependentiy ot the travel of the latter,= tlie-u'sual clutch'and. brake means, not, shoWn,`.bein`g-fl provided toi-Icontrolling transmission of l powerto theydrumandl for holding the lat-V ter from turningl ivhe'njidle. The front aXle' vr llvis also shown as settorvvardly` of its noi",- mal position bygextension mounting elements l'and l18, thereby lengthening the 4Wheel: 65,

base ot' lthe Vtractor to preventany tendency o 'fr' the tractor" to overturnand adaptfthe same to ettiectively-take any severe strains involved when subjectingthe Winch to heavy duty". i

As show-n, the element-13 consist-,ot a 'sup portingyoke having its upper endsv fixedtofl the projectingftrontendsot the tramevniemf bers y6V directly "below i the bearings- Afor the Ashaft ot drum 8, the -tront axlellbeing piv-V oted as at Ylli toftliejyoke 13 orlateraltiltiiig `viltn accordance with the present invention,

an upright boom is mountedion the front l ready transportation'to desired point. when i the tractor ispropelled to ,suchfp'oint n As shown, theboomconsists o'fja vpair/of spaced':tubiilar or pipe members 17 provided. eo,- Y I jat their lovver ends with T-,tittingsiyl which' Y are transversely-lalined andV connected;ib'yV a pai'rfot. pipesections l1.91 and .an'intermediate \'T-titting 2() which may beloosely,` threadedv together tolpermit vforwardly swinging movev ment ot the boom members 17'to adjust the i'nl f clination ot the'latter.v llievboom isinclined v forwardly',andv sustained at the desired in;A clination bymeansot guy cables 2l attached to the upper ends of the boom members lfand 'le'Y f .i S5" l .object or article clear ot thefground, tor

p i y 1,739,938

adjustably clamped to the` frame members V6 ory other suitable parts near the rear end of the tractor` Thebranchcof the fitting` 2O is directed downwardly and has the upper end of an inclined brace armA 22 threaded p therein, said brace arm being in the formofA a pipe section hav-ing a flattened and slotted loWer'e-nd23 detachably bolted -to the lower portion of the axle-supporting yoke 13. In

this way thel arm 22 assists in sustaining the f load placed on the boom when the heavy ob-v 'sist fof 1a `pipe v'section removably inserted y ject is lifted by the hoistiI-ig-cablel5.A v Y The upper ends of the boom members 17 are directed laterally toward and adjacent Y each other where they have parallel flattened Y ltermiI-ials 24 between which the ysheave-l is journaled.V f

FiXed'lto and projecting forwardly from their-entends ofthe framem'emfbers @are isuppontingbrac'lets 25 hav-ing tizmsverselyV alined openings 26. in which :are lengaged and suitablyv retained .-the' endsof a transverse horizontal 4supp'ort'ing.rod27 which may con through the transverse j connecting member ,embodying the T vfittings l8jand 20 yandpipe Y Asections -19L-f The"=} '00m is', thus -readily and VYsoY eiectively Vdetach'ablyl mounted vat its lower end in position in frontof the drunif-S.

Thus lit Wi-lltber'seen that'when -a tractor is "equippedwith lawinch such Winch may-be readily converted into leilicientcraneby A thefdevicecoirtemplatedby Athis invention.

cui() .Minori-changes may be made without-de partingtrorn 'the spirit andiscope of the i-nvention as claimed. f

WhatiI claim'aslnew is.: Y f Means for. converting winch attachment lfor tractors `for use as 'a crane5 whereini said winch attachments comprising side frame members having awinding dlrummounted between lthe forward .ends thereof, vcomprising i f brackets ladaptedtoibe fixed to` theyforward Vends of saidi fra-me members, 'a cranefboo'm adapted tobe-gmou'ntedra't itsflower-'end in said i V-braoketsand: having a `hoisting `cable guide sheavejournaledy at the' upper end thereof, saidboom emb'ojdyin g1 a i pair of sp aced similar members offset laterally. toward each other at'theiriupp'er ends-andi having the `guide Y Y j sheave Ajournaled therebetw'een,.- a ltubular open-ended 4 rigidk connection.I .between `-`the ylower ends o 'said boomlm'embers, Aand a sup-y f porting shaft-extending through said 'connecn tion and havingV its iendsf pr0jecting=laterally therefrom;

ln; testimony.. whereof-i I affix my signa ture; i

Y JOHN BIBARNETT,

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