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July 23, 1946; G. E. coATs 2,404,61 9 LOADING MACHINE Filed March 31, 1945 4 Sheets-Sheet 1 , July 23, 1946. G. E, COATS 2,404,619‘ ‘ LOADING MACHINE Filed March 31, 1945 4 Sheets-Sheet 2 :i 143, .5742 72 ‘ Jhz/en for G/?berff. Coais éyw/fffaaw July 23, 1946. 2,404,519 G. E. coATs LOADING MACHINE Filed March 31, 1945 4 Shéets-Sheet 3' i g - _ "Eueném Gi/berf ECoafs ' éyw?ffw vJul-y 23, 1946. 2,404,619 G. E. CO‘ATS LOADING MACHINE Filed March 31, 1945 E 4 Sheets-Sheet 4 ,Q Q? Inf/é ‘, Qi/beri [Loads 7. WWXMany’; Patented July 23, 1946 2,404,619 - UNITED STATES PATENT OFFICE 2,404,619 LOADING MACHINE Gilbert E. Coats, Fort Dodge, ‘Iowa Application March 31, 1945, serial no. §85,§8l (01. 214-141) '7 Claims. 2 1 Fig. i is a site ere‘vanonh view (if the loading This invention relates generally toloading ma‘ chines and in particular to a _lpading_attachment attachment of thisinventionin assembly rela- ‘ for a tractor for picking up and stacking or load tion with a farm tractor of a usualtype; 4 _ Fig. 2 is a plan view of the loading attachment ing hay, manure, snow and like material.‘ ‘This application is an improvement of co-pending ap and tractor assembly; I H I _ II Fig. 3 is a sectional view taken on the line plication Serial No. 537,945 filed en May 29, 1944. An object of this invention is to provide a load ing machine in which a load-‘carrying unit is 3-'—j3inFig.2; I I I _ _w _r Fig. 4 is a front elevational viewof the loading attachment and tractor assembly with certain supported on telescoping ‘pivoted lifting arms which are extended, as they are elevated, by the parts broken away to more clearly show the con action of arm lifting cables. struction of the attachment; 7 I trolling the arm lifting cables; be quickly and easily mounted on and removed _ ‘ Yet a, further object of this invention is to pro vide a snow scoop, fora tractor mounted load _s _ II I I I _ Fig. '7 is a sectional view as seen along the line 20 l—-'| in Fig. 6; Fig. 8 is a sectional view taken on the line ing‘v attachment, which is readily interchangeable I‘ v arm-lifting cables; s_'s in Fig. 6; I I I I Fig. 9 is an enlarged elevatienal detail‘ viewIIof with other load-carrying units for the attach ment. _ Fig. 6 is a fragmentary rear elevational view of the top portion of the upright frame of the at- I tachment showing the pulley supports for_the from different types of farm, tractors and oper load-‘carrying unit in a loading machine. _ _. in Fig. 4 showing the clutch mechanism for con‘ a tractor mounted loading attachment which‘ can ated by the usual side belt pulley on a, tractor. Another object of this invention is to provide an improved latch and trip mechanism for the I Fig. 5 is a sectional View taken on the line 5'-‘—'5 A further object of this invention is to provide a tightening device for the drive belt connected _ Anotherv object of this invention is to provide a with the tractor belt pulley; I Fig. 10 is a sectional View as seen on the line a tractor mounted loading attachment having an upright frame and a pair of pivoted lifting arms |0I—IllinFig.9; I_ - I Fig. 11 is a fragmentary rear detail view, partly in section, of a lower end extension on one of the a load-carrying unit I on the front‘ end. of the arms is maintained substantially adjacent the 30 guides for guiding the up and down movement of arranged at opposite sides of the‘ frame, in which thepivoted lifting arms; forward side of the upright frame at all elevated positions of the arms. v I‘ _ s I ‘ changed positions; and at opposite sides of the tractor, and an upright With reference to'the drawings the loading at tachment of this invention is illustrated inIFige. are inclined rearwardly and downwardly from the upright frame at all pivotally moved positions _ I . ing arms with a, load-carrying scoop; frame at the forward end of the tractor for sup‘ porting lifting cables, in which the lifting cables _ I Fig 13' is a sectional view taken on the line 13-13 in Fig. 2 showing the assembly of the lift having a pair of extendible lifting arms arranged I , I2—‘-I2 in Fig. 11 showing the parts thereof in A feature of this invention is found in the pro vision of a tractor mounted loading attachment of the arms. I Fig. 12 is a sectional view as seen on the line _ 1 and 2 mountedon a farm tractor of a usual type having a body frame or chassis 15, rear wheels I l6 and front steering wheels ll. A usual side belt pulley is indicated at | a in I operative association A further feature of this invention is found in the provision of a tractormounte‘d loading at’ tachment having a pair of oppositely arranged with the tractor transmission mechanism (not pivoted loadflifting ‘arms, in which an upright 425 > The loading attachment‘ of this invention in means for guiding the arms in theirup and down cludes a pair of pivoted teles'coped lifting arms movement is} provided with a pivoted extension [9 and 29 arranged at opposite sides of, the trac at its lower end movablein at forward and [rearL tor frame l5 and pivotally Supported at their ward direction to accommodate changes in ele shown) .. ~ _ I I vation in a ground surface over which the trac 50 rear ends 22 on brackets 23 carried on the trac tor rear axle 24. Each lifting arm 19 and 2l'l'is tor is travelling. comprised of a pair of pipe or arm members 25 Further objects, features _ and advantages of and 26 arranged in a telescopic relation, with the this invention will become apparent from the fill arm member 26 telescoped over the forward por lowin'g description when taken in connection with the accompanying drawings in whichf ‘ 65 tion or the arm member 25 which has its rear end 3 2,404,619 4 22 pivoted onra bracket 23'. The arm member 25 otally moved forwardly by the action of the trig is thus axially or longitudinally movable relative ‘ ger member 58 so as to be in a position to releas ably engage the catch member 44 on the return movement of the scoop 32 to a loading, position. Adjustmentof the bottom of the scoop 32 relative to the arm member 2%, with the rearward longi tudinal movement of the arm 26 being limited by " the engagement of its rear end with a pin 21 ex tended through a selected pair of aligned open ings 28 in the arm member 26. The pin 21 thus de?nes the contracted position of the arm mem to the ground is accomplished by adjusting the length of the latch 34 through the bolt 31 con necting the latch upper member 36 and lower bers 25 and 26 with such contracted position be- 1 member 31. Thus when it is desired to elevate the ing dependent on the length of the tractor upon 10 front end of the scoop 32 the latch 34 is shortened, which the loading attachment’ is to be mounted. while to lower the scoop front end the latch .34 is The front ends of the arm members 26 are pro_ Jected forwardly of the tractor and connected to- 1 lengthened. (Figs. 3 and. 4) which are secured to opposite supported fromgadjacent the top of an upright . The lifting arms i9 and 20 are pivotally raised gether at such" front ends by a frame structure’ and lowered by means including a pair of lifting comprised of a pair of channel beams 29 and 3| 15 cables Si] and ‘5! (Figs. 1 and 4) . The cables are 1. sides of the arm.members 26, .with the top beam 29 located rearwardly of the front side of the 7': bottom beam member 3!. A load-carrying scoop, ‘ ‘ , 3 . ‘ ‘ frame comprised of a pair of transversely spaced upright frame members 62 and 63 mounted at their lower ends on the front end of the tractor indicated generally as 32, is pivotally supported 20 frame l5 and having their upper ends connected at. 33 on the front ends of the lifting arms I9 and 7 together by a transverse frame member 64, the 2B in a manner which will be later described. ends of which project laterally outwardly from In order to releasably hold the scoop 32 in a the frame member's 62 and 63.‘ The upright frame loading position there is provided a latching is held against any forward and rearward tilting mechanism including an upright pivoted latch 34 25 movement by braces 65 extended rearwardly and (Figs; 3 and 4) comprised of an upper member 36 . downwardly from the upright frame members 62 and a lower member 3?. A bolt 38 extended and $3 for connection with the tractor frame l5. through the lower member 31 is receivable in a Each cable 60 and 6! is operatively associated with slot 39 formed in the upper member 36 to provide a pair of spaced pulleys 65 and 66 rotatably sup for the adjustment of the length of the latch 34. ported at the top of the upright frame for ro~ The bottom end of the lower member 31 is of a tation in a plane transversely of the tractor loop- form adapted to receive a pin 45 to support frame 15. The pulleys 66 have their adjacent the latch in a bracket 42, carried on the top of ends located inwardly of corresponding frame the bottom beam member 8!, for pivotal move~ members 62 and 63 while the outer end of each ment in a direction longitudinally of the tractor. 35 pulley 65 is adjacent a corresponding end of the The latch “adjacent its upper end’is formed withan opening 43 of a size to receive, in re- . , leasable engagement, a catch member Ml pro jected rearwardly and slightly upwardly from the transverse frame member 64 for a purpose which will appear later. As best appears in Figs. 6, 7 and 8 the frame members 62, 63 and 64 are of an angle iron con 3 back side 46 of the scoop 32. 40 struction, with the transverse frame member 64 A rearward extension 41 adjacent the top of the having the angle thereof at the‘top and front l ~latch 3H is formed at its free end with an opening side of the upright frame. A supporting plate 6'! ‘ '43 for slidably receiving the free end'of a trigger is welded to the bottom of the top horizontal leg or release member 49 which is projected radially of the frame member 64 over the end portion from the inner end of a rock shaft 5i rotatably 45 thereof de?ned by a pair of associated pulleys 65 ‘ supported in bearings 52 carried on the upper and 66, with such pulleys being rotatable on pins side of the top beam member 29. The outer end 68 extended between the front leg 69 of the frame i of the shaft 52 carries a rock lever 53 (Figs. 1v member 64 and a plate 6?. Extended transversely and 2) - which is pivotally connected at its upper across each end of the frame member 64 is a sup end with one end of a rod 54, the opposite end of 60 porting plate 10. > 3 which is pivoted to a handlever 56 pivoted at its _ The movable or telescoping member 25 of each lower end 51 on'the top of the arm member 25 lifting arm l9 and 20 has a bracket ‘H of a sub for the lifting arm 19. The lever 53, and in turn stantially inverted U shape welded on its upper 1 the shaft 52, are continuously biased in a clock side at a position substantially intermediate the . wise direction as viewed in Figs. 1 and 3, by a ten 55 ends of an arm member 26. As clearly appears in . sion spring 58 connected at one end to the lower Fig. 1 when an arm member 26 is in a telescoped ‘end of the rock lever 53 and at its opposite end or contracted position the bracket ‘H is located to a lug 59 carried on the arm member 26, of the rearwardly of the upright frame which is sup ‘lifting arm 19, at a position rearwardly of the ported at the front end of the tractor frame [5. ‘Shaft 52. This biasing action of the" spring 58 1A pulley 12 is rotatably supported within each acts to continuously urge the trigger member 49 60 bracket ‘H on a pin member 13. In one embodi forwardly, or in a clockwise direction, as viewed ment of the invention the arm member 26 is in Fig. 3, with the member 49 in turn acting on about eight feet long and the pulley pin 73 is . the latch 34 to move and yieldably maintain the located about three feet rearwardly from the free 1 latch opening 43 in a position for engaging the 65 end of the arm member 26. ‘patch 44 on the scoop 32. Since the assembly of each cable SO'and 6| ‘__".In‘ the operation of the latching mechanism to With_its associated pulleys 65 and 66 is the same release or dump the scoop 32 the hand lever 58 only the assembly of the cable 60 will be referred j is pivoted rearwardly or to the left, as viewed in to in detail in the following description. The . Fig. 1, to in turn rotate the rock shaft 52 in a 70 cable 60 has one end ‘(4 (Fig. 1) connected to ‘ counter-clockwise direction, as also viewed in the front end of the supporting plate 10, and is ‘ Fig. 1, whereby the latch 35 is moved out of an then extended downwardly for passage about ‘ engaging position with the catch member 44. By the pulley 72 carried'in the bracket 7!, from . virtue of the action of the spring 58, on release of which pulley the cable is passed upwardly over the hand lever .56, the‘latch member 34 is piv 75 the pulley 65 and through an opening 16 in the 2,404,619 5 a ' 9 6 . leg ‘I‘! of the upright frame member 92 over the pulley 96 '(Fig. 6). ‘From the pulley 69 the cable 69 extends downwardly for‘connection of its other end about a‘winding drum ‘I8 (Fig. 4). The cable 6| has a corresponding winding pulley 89. The Winding pulleys l9 and 99 are mounted on a common transverse shaft ‘(9 rotatably sup ported in bearings '8I carried on the forward side of the upright frame members 92 and 93. The bearings 8I are secured to a corresponding and 29, and to retain the scoop 32 at any elevated I or moved position of the lifting arms, is con trolled entirely by the manipulation of ‘the clutch lever 91 in a manner now to, be described. With reference to Fig. l the lever 91 is shown with its upper or free end pivoted to an actuating rod I94 which extends toward the rear of the tractor to a position conveniently accessible to the trac tor operator. The rod I94 is slidably supported in, an upright frame‘ member I99 mounted on the tractor frame I5, and its rear end is formed with a hand grip I91. Pivoted ‘at one end adjacent the lower end of the lever 91 (Fig. 5) is a link I98'the opposite‘ frame member 62 and 93 by bolts 82 extended therethrough and through slots '93 in the frame members whereby the shaft ‘I9 is adjustable in an up and down direction on the upright frame 15 end of which is pivotally connected at I99 with for a purpose which will appear later. ‘ Mounted on the shaft 19 between the winding drums ‘I8 and 89 is a sprocket 84 connected by a sprocket chain 86 to a sprocket 9‘! carried on a sleeve member 88 which is rotatable on a driving 20 shaft 89 located below the shaft ‘I9 and rotatably supported in bearings 99 and 92 secured to the frame members 92 and 69, respectively, in the upright frame. Integrally formed with the sleeve member 89 is a shell member 93 which 25 constitutes one of the units in a friction clutch mechanism indicated generally at 99. A second clutch unit 99 is of a conical shape, adapted to be received in frictional engagement within the shell member 93, and mounted on the driving shaft 89. By moving the shell member 99 axially of the shaft 99 into and out of frictional en gagement with the second clutch unit or conical the arm III of a bell crank H9 of an irregular shape. A shaft portion, I I2 connected between the crank arm I'III and a crank arm H5 is rotatably supported in a bearing H3 mounted on a bottom transverse frame member H4 ex tended between the upright frame members 62 and 63. ' The crank arm I I5 is extended laterally and forwardly from'the shaft portion H2 and then parallel and away from the shaft portion IIZ. A brake band I'I‘i is positioned about the upper half of the clutch shell member 93 and has one end IE8 pivoted to the crank‘ arm I I5 and an opposite end H9 pivoted on a bolt I2I secured to the bottom transverse frame member H4. The brake band II‘! is normally held in fric tional engagement with the clutch shell mem ber ‘99 by a spring I22 ‘connected at one end to a bracket I23 on the upright frame member member 99, power is transmitted from the shaft 89 to the shaft ‘I9 through the sprocket and 35 92 and at its opposite end to the free end I24 of the bell crank arm III. On actuation of the chain assembly 84, 89 and 81 (Figs. 4 and 5). clutch lever 91 in a direction toward the rear of This movement of the shell member 93 rela the tractor, or in a counter-clockwise direction tive to the cone member 99 is accomplished by as viewed in Fig. 5,‘ the shaft portion H2 is means including a clutch lever 9‘! integrally formed with a hub portion 99 which is rotatable 40 rotated in a counter-clockwise direction, as also viewed in Fig. ‘5, by the action of the link I98 on the driving shaft 89 at a position adjacent on the bell crank II9 whereby the end IIB of to the sleeve member 88. The lever 91 extends the‘brake band II‘! is moved upwardly. This upwardly to a position adjacent the transverse movement of the brake band H‘I releases its frame member 94 of the upright frame and is frictional engagement with the clutch shell mem of a form to be received within the winding ber s93. When the shell member ‘93 is thus re drum ‘I8 for movement radially of such winding leased, the scoop 92 is free to move downwardly drum without interfering with the wrapping and from any "elevated position due to the‘action of unwrapping of the cable 99 relative to the wind~ gravity. On a continued movement of the clutch ing drum, as is clearly illustrated in Fig. 5. The hub 98 is formed with a cam surface 99 for operative association with a corresponding cam surface I9I formed on the inner side of the bear lever 9‘I in a counter-clockwise direction the cam surfaces 99 and I9I are relatively moved a dis tance suf?cient to frictionally engage the shell member 93 with the cone member 96, in the ing member 99. Referring to Fig. 4 the bearing manner above fully described, to provide for member 99,~hub 98, and sleeve member 98 are seen to be in a stacked relation on the driving 55 the driving of the shaft ‘I9 from the shaft 89. When the clutch lever 9‘! is released the brake shaft 89. ' ' band II‘! is automatically moved into a braking Thus on pivotal movement of the clutch lever position with the shell member 99 by the action‘ 91 in a direction rearwardly of the tractor, or of the spring I22. It is thus seen that the elevat toward the left, as viewed in Fig. 5, the sliding ing of the scoop 32, its retention in an elevated engagement of the cam surfaces 99 and I9I position, and its release for falling downwardly moves the hub 99 and sleeve 88 toward the right, to the ground by the action of gravity/is controlled as viewed in Fig. 4, to in turn move the shell entirelyby the‘actuation of the clutch lever 91. member 93 axially on the shaft 89 into frictional In the operation of the loading machine of this engagement with the cone member 199. Since the cone member 99 rotates with the driving shaft 65 invention assume the lifting arms I9 and 29 to be in their lowered and contracted positions 89 this frictional engagement of the members 93 shown in Fig. 1, that is with the arm members and 96 connects the shaft ‘I9 with the shaft 89 29 moved to their rearward positions against the through the sprocket and chain assembly 94, 89 stop pins 21. With the lifting arms I9 and 29 and '87. The shaft 89 has one end projected laterally from the upright frame member 92 70 thus positioned the pulleys ‘I2 for connecting the cables 69 and BIwith the lifting arms are located which projected end carries a pulley I92 con rearwardly of the upright frame. On manipula nected through a belt I93 with the tractor belt tion of the clutch lever S'Lin the manner above. pulley I8 (Fig. 1). described, to release the brake band Ill and con The connection and disconnection of the shafts 1'9 and 89 to pivotally move the lifting arms I9 75 nect the shaft ‘I9 in a driven relation with the ._ 2,404,619 8 ‘shaft 89, the‘ cables to and st are 'wound'about pins 21 to in turn carry the pulleys l2 rearwardly their corresponding drums ‘I8 and 80 to elevate ‘ the lifting arms I9 and '29. During the elevation of the upright frame. When the scoop 32, theree fore, is to be lifted again the cables 60 and 6| of the liftingarms I9 and 20 the cables 69v and are inclined rearwardly from the upright frame and positioned to extend the arm members 26 GI tend to assume a position vertically down ‘ wardly from the pulleys 65 ‘or a position within - concurrently with an elevation of the scoop 32. the plane‘of the upright frame as illustrated in 1 dotted lines in' Fig. 1. This action of the cables To stabilizethe lifting arms I9 and 20 against movement laterally or transversely of the tractor I 60 and 6| in‘turn moves the» pulleys ‘I2 toward a at substantially all elevated positions of the arms, ‘ position in the plane of the upright frame where there is provided an arm guide means‘ (Fig. 4) which iscomprised of a pair of guide members I39 and I3I oppositely arranged in a spaced re gby the‘ arm members 26 are extended forwardly j of the upright frame. In other words, due to the 1 action of the cables 69 and 6| on the pulleys ‘I2 the‘ arm members26 are extended from their con 1 tracted or telescoped positions, shown infull lines ‘ in Fig. 1, to their dotted line positions, also shown §in Fig. 1, concurrently with the elevating of the ‘lifting arms I9 and 29, whereby'the scoop 32 is ‘retained in a position adjacent the forward side ‘ of the upright frame at all pivotally moved posi tions of the arms I9 and 20. > The scoop 32 maybe dumped at any elevated ‘position by the actuation of the hand lever "56 to 1move the‘ latch 34 out of engagement with the I catch 44 as was above fullydescribed. The dump 3ing movement of the scoop. 32 is limited by the I, lation to the outside of the uprightframe mem bers 62 and 63, respectively. Each guide member 15 I39 and I3I is of a pipe construction and is suit ably secured at its upper'end, as by welding or like means; to the transverse frame member 64. A’ brace member I32, also of a pipe construction, is welded between’ the lower end of an arm I30 and I3I and the lower end of a corresponding upright frame member 62 and 63. The spaced relation of the guide members I39 and I3I from the corresponding frame members 62 and’ 63' is such as to provide for their contact engagement 25 with the inner sides of the lifting arms l9 and 20, and for a sufficient clearance relation of the provision of a pair of lug members I65, welded pulley I92 between the guide member 130 and .or otherwise secured to the bottom of the scoop ‘ at a position forwardly of the scoop pivots 33, and adapted to engage the under side of the arms I9 the frame member 62. It is seen, therefore, that the guide members I39 and I3I thus stabilize the lifting arms I9 and 29 against lateral movement ‘and 29 to stop a dumping movement of the scoop. .A tension spring I10 (Figs. 1 and 4) connected at ione end to the top transverse frame memberv 64, at all lifted positions of the arms I9 and 20 over and at its other end to a chain Ill vis passed under ‘a pulley I12 on the beam member 29 for connec tion at I13 with the scoop ‘back wall 46; When 1the scoop 32 is dumped, its pivotal movement in a clockwise direction, to a position at which the lugs I65 engage the liftingarms, stores or builds the distance de?ned by the length of the guide members I39 and I 3|. - : Since the guide members I33 and I3I, as shown 35 in Fig. 1, terminate at a position above thefront axle for the steering wheels I? each guide mem ber I39 and I3I has a pivoted lower unit to pro vide for a guiding of the lifting arms I9 and‘ 23 at all’ pivotally moved positions thereof. Each lup a pressure in the spring I19. When-the load .is dumped from the scoop the pressure thus stored in the spring acts to return the scoop to its load ing position at which the latch 34 is releasably lower unit includes a sleeve member I33 rotat ably supported on a vbrace member I32 and‘ex tended between a guide member I30 and I3I and a corresponding frame member 62 and-63 (Figs. ‘engaged with the catch 44. The spring and chain 4 and 11). Welded to the bottom side of the ‘assembly I19—I ‘(I thus functions to automatically sleeve member I33 is a supporting plate I34 exé return the scoop to a loading position. 7 tended in a spaced relation. below the lower'end Since the cables 60 and GI are normally ex of a guide member I 39 and I 3i. An extension ‘itended rearwardly from their corresponding I36 for a guide member I33 and I3I is welded to wpulleys 35 to one side of the plane of rotation of the bottom side of a supporting plate I34 in ver¢ ‘the pulleys 65, means are provided to guide the 50 tical alignment with an associated guide mem ‘cables 69 and SI for their movable support at all ber. A'brace member I3? is welded between the times on the pulleys 65. This means includes a lower end of the extension I36 and the outer end 1guide member I26 carried on the rear side of a I38 of the supporting plate I34. It is seen, there? supporting plate 61 at a position adjacent the fore, that the extension I36 is pivotally movable outer end 'ofjsuch plate (Figs. 6 and 7). The about the pipe member I32, as an axis, in a di lower end I21 0f the guidelmernbenl26 is pro rection forwardly and rearwardly of the tractor jected below the level of the supporting plate 67 while ‘being retained at all times‘ in the vertical }and is of an arcuate shape bent inwardly under. plane of an associated guide member I39 and I3I. the supporting plate 61 so that the cable guiding The pivoted lower unit is normally yieldablyv re ‘surface I23 thereof is in substantial vertical align (SI) tained in an upright position by the provision of ment with the cable groove in a pulley 35. Thus a tension spring I39 connected at one endade when the cable 6|, for example, is inclined rear jacent the inner end of a sleeve I33, and at its“ Zwardlyfrom the pulley v65 the guiding surface opposite end to a bracket IdI projected outwardly I28 retains the cable 6| in alignment with its from a guide member I30 and I 3| at a position ipulley 65, as illustrated in dotted lines in Fig. 7, ‘so that the rearward inclination of the cable 3i terminates with the guide member I26. spaced upwardly from the brace member I32. The extension I36 in conjunction'with an as sociated guide member I39 and I3I provides for ' On lowering of the scoop 32 by gravity, the _ ‘ the stabilizing of the arms I9 and 29 against lat cables 63 and GI are unwound from the drums eral movement for all pivotally moved positions :28. The lifting arms I9 and 29, when the, scoop 70 of the lifting arms from substantially a ground 132 is dropped to its lowermost position, may have level to vthe top of the upright frame; By virtue the members 26 thereof 'in a partially extended of the pivoted assembly of an extension I36 with position. However, on loading of the scoop 32, a guide member I39 and I 3| such extension is by a usual bucking operation, the arm members freely movable when it strikes an‘ obstruction or 426 are moved to their stop positions against the 75 the like in the path of advance of, the tractor, as ' ‘2,404,619 10 The members I58 are of a size to receive the for ward ends of the lifting arms !9 and Ziltherein. indicated in Fig. 12 for a pivotally moved posi tion of the extension I36. The projection of the The scoop 32 is pivotally supported on thefor lifting arm guide means to a position substan~ ward ends of the lifting arms I»?! and 20 by means tially adjacent the ground surface thus in no way interferes with the travel of the tractor over Ol of the bolts 33 whichare extended therethrough and through the side walls of the housing mem rough or uneven ground while providing a guid bers I58. Nuts ISI for the bolts 33 are positioned ing action for the lifting arms I!) and 2f over to the outside of the housing members and read their full pivotal travel. ily accessible from the inside of the scoop. The As shown in Figs. 4 and 6 the cables 55 and GI extend substantially vertically downwardly from 10 stop lugs I65, for limiting the dumping move their corresponding pulleys 65 for wrapping about the winding drums l8 and 8B. In other words, ment of ;the scoop 32, are secured to the bottom of the scoop and extended across the open bot each the other otherina acable straight 60 and lineSIpath passes so from as to one be al tom sides of the housings I58 forwardly of the arms I9 and 2B. Skids I52 extended transversely of the scoop to each side of a housing member I58 slidably support the scoop for travel along ways centered relative to a pulley 66 and a drum the ground surface during a bucking operation. even though a drum ‘I8 and 8B and an associat ed pulley 85 are rotatable in planes normal to It is seen, therefore, that the scoop is of a relae tively large size for plowing and lifting snow and drums 18 and 80 it is necessary that the drums 20. of a construction for ready assembly with and re moval from the load-lifting arms I9 and 2%. ‘I8 and 8!) be rotated in a counter-clockwise di From a consideration of the above description rection, as viewed in Fig. 1, to wind the cables it is seen that the invention provides a loading thereon. Likewise the pulley I02 would be ro attachment which is of a simple and rigid con tated in a counter-clockwise direction as also types viewed in Fig. 1. Since the standard rotation of 25 struction and readily attachable to different The assembly the belt pulley $8 in commercial type tractors ‘ of available commercial tractors. of the cables 60 and 6| relative to the telescoping is generally in a clockwise direction, as viewed lifting arms I9 and 20 provides for the function in Fig. 1, the belt I03 for connecting the pulleys of the cables not only to lower and to raise the I8 and I 62 is twisted to provide for a reverse lifting arms, but to extend the arm membersv 26 rotation of the pulleys I8 and I02. concurrently with the elevation of the lifting arms A belt tightener for the belt I63 (Figs. 9 and ‘I8 and 85. In order to provide for this assembly of the cables 63 and BI with the pulleys 6t and 10) includes an idler roller, I52 rotatably sup~ ported between arm-s M3 supported in a spaced relation on a sleeve member I463. The sleeve so that the scoop 32 is maintained ‘adjacent the forward side of theupright frame at all pivotally moved positions of the lifting arms. Further all member I44 is rotatable about a shaft Hi5 hav ing one threaded end I41 extended through a of the control levers for dumping the scoop and slot and I48 an formed opposite in the threaded uprightend frame I59member extended and available atlall times. through a slot I5! formed in a lug member IE2 secured to and extended rearwardly from the guide member I35. Welded at one end to the sleeve member I44 and extended forwardly from the sleeve member is an arm member I52a hav ing a tension spring I53 connected to its free end i??. The opposite end of the spring I54 is con nected to the free end of an arm member I55 which is secured to, and extended rearwardly from, the frame memberv?'l. By virtue of the pivotal support of the sleeve member I54 on the shaft I46 the spring I54 acts to urge and yield ably maintain the roller I42 against the bottom side of the belt I83 as is clearlyillustrated in Fig. 9. The extension of the shaft ends I41 and M9 through the slots I48 and ISI, respectively, pro vides for a tilting adjustment of the idler M2 rel ative to the belt I53 to hold the belt against operating the lifting arms are readily accessible to the operator so as to be conveniently manipulated 7 Although the invention has been described with respect to a preferred embodiment thereof it is to be understood that it is not to be so limited since changes and modi?cations can be made‘ therein which are within the full intended scope of this invention as de?ned by the appended claims. Iclaim: , ' ~ I i i 1. A loading machine‘ including a portable frame and an upright frame carried at one end of said frame, a pair of pivoted telescoped lifting arms arranged at .opposite sides of said frame, means pivotally supporting said arms at their rear ends on said portable frame, with each’ of said arms including a telescoping member mov able forwardly of said upright frame, a load , carrying unit, supported on the front end of said telescoping members, flexible lifting, means for said arms, means supporting said ?exible lifting means at one of their ends adjacent the top of tially centered position on the pulley I02. An ad ‘said upright frame, means connecting the op justed position of the shaft I66 is maintained by the tightening of nuts I56 threadable on the shaft 60 posite ends of said ?exible lifting means at posi tions on said telescoping members such that when ends I41 and I49 and against the frame member axial travel on the pulley I02 and in a substan 62 and bracket I52, respectively. The load-carrying unit 32 is illustrated in the said arms are telescoped and in a lowered posi tion, said flexible lifting means are inclined rear wardly and downwardly from the top of said up drawings as being a snow scoop, although it is to be understood that a hay buck, manure scoop 65 right frame, and means for concurrently raising and lowering said flexible, lifting means to piv or the like may be substituted for the snow scoop otally move said arms, said lifting vmeans, on rais 32. With reference to Figs. 2, 4 and 13 the snow ' scoop 32 is seen to be of a length substantially equal to the transverse width of the tractor, and to extend to the outside of the lifting arms I9 and 20. The back wall ‘it of the scoop 32 is formed with a pair of longitudinally spaced for wardly and downwardly inclined housing mem bers I58 constituting hollow brace members con nected between the back and bottom of the scoop. ing thereof, being movable to positions substan tially within the plane of said upright frame whereby said telescoping members are extended forwardly of said upright frame; 2. A loading machine com rising a portable frame and an upright frame supported at one end‘ I of said frame, a pair of pivoted telescoped lifting arms arranged at opposite sides of said frame, 11 2,404,619 means pivotally supporting said lifting arms at their rear ends on said frame, with a telescoping member'of each arm being ‘extendible forwardly of said upright frame, a pair of ?exible lifting means corresponding to said arms, with each of said lifting means being movably supported ad jacent the top of said frame and connected with a corresponding telescoping member at a position 12 on being elevated, acting to ‘move a corresponding front member toward its extended position. 5. A loading machine comprising a portable frame and an upright frame at the forward end of said portable frame, a pair of pivoted lifting arms arranged at opposite sides of said frame, having their front ends projected forwardly of ‘said upright frame, means pivotally supporting rearwardly of said upright frame when an arm is the rear ends of said arms on said portable frame, lowered and in a contracted position, and means 10 means for pivotally raising and lowering said for concurrently raising and lowering said lifting arms, means for guiding the pivotal up and down means including a winding drum for each of said lifting means rotatably supported on said upright movement of said arms comprising a pair of up said frame. frame. right guide members positioned at opposite sides frame, with said lifting means, on raising of said of said upright frame, pivoted extensions for the arms, being movable toward a‘ position substan 15 lower ends of said upright guides, and means piv tially Within the plane of said upright frame to oting said extensions on said upright guides for extend said telescoping members forwardly of pivotal movement longitudinally of said portable ' ' 3. A loading machine including a portable 6. A loading machine including a portable frame with an upright frame thereon, va pair of 20 frame and a pair of pivoted lifting arms arranged pivoted arms arranged at opposite sides of said at opposite sides of said frame, means for elevat- ‘ upright frame and pivoted at their rear ends on ing and lowering said lifting means, means for said portable frame, front members for said arms guiding said arms against movement laterally movable longitudinally of said arms to extended of said frame comprising a pair of upright guide positions forwardly of said upright frame, and 25 members positioned at opposite sides of said frame means for elevating and lowering said arms'in for contact engagement with the inner sides of - eluding a pair of ?exible lifting means movably‘ said arms, pivoted lower extensions for said guide members pivotally movable longitudinally of said frame, and means for normally yieldably retain supported adjacent the top of said upright frame, _ and connected with said front members at posi tions ,rearwardlyvof said upright frame to pro 30 ing said extensions in upright positions. I vide for the extension of said front members con '7. A loading machine comprising a portable currently with the elevation of said arms. frame and a pair of pivoted arms arranged at 4. A loading machine including a portable opposite sides of said frame, a load carrying unit frame and an upright frame at the forward end pivotally supported-on the forward ends of said of said portable frame, a pair of pivoted lifting arms, a catch member extended rearwardly from arms arranged at opposite sides of said portable said unit, a transverse frame structure connected frame, with each of said arms including a rear between said arms rearwardly of said unit, a member and, a front member movably, supported pivoted upright latch pivotally supported on said on a rear memberfor relative longitudinal move frame structure for pivotal movement longitudi ment ,to extended and contracted positions, a 40 nally of said frame, said latch having an opening load-carrying unit supported on the forward ends adjacent the upper end thereof adapted to receive of said front members, means pivotally support the free end of said catch member in releasable } ing each rear member on said portable frame, a . engagement, a transverse rock shaft on said pair of ?exible lifting means for said arms, with I ?exible lifting means being connected with a cor frame structure having an upright radial member, a rear extension on 'said latch slidably engage ‘ responding front'member at a position rearwardly ‘ ' of said upright frame when said front member is able with said radial member to provide for piv~ ‘ ‘in a contracted position, means movably support rocking movement of said shaft, means for rock otal movement of said latch in response to a ing said ?exible lifting means adjacent the top of ing said shaft in one direction to release said ' ‘ said upright frame including a pulley, means for 50 catch member from engagement with the latch i retaining said flexible lifting means in operative ‘ at said opening, and tension means for rocking ‘ association with said pulley’ at all moved posi- 1 said shaft in an opposite direction to pivotally ‘ tions of said corresponding front member, and ‘ means for concurrently elevating and lowering ‘ said lifting means, with a ?exible lifting means, move and yieldably hold said latch in a position for engaging said catch member. GILBERT E. COATS.