US1456278A - Loading and unloading device - Google Patents

Description

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May 22, 1923. 1,456,278

A. L. oLlPHANT LOADING AND UNLOADING DEVICE Filed Dec. 19 1921 4 Sheets-Sheet 4 WITNESSES Patented May 22, w23.,

NETE@ STTS ALVA LARENCE OLIPEAN'I, 0F WASHINGTON, KANSAS.

LOADING AND UNLOADING- DEVICE.

Application med December 19, 1921. serial No. 523,497.

VTo all whom t may concern Be it known that I, ALvA L. OLIrHnNT, a citizen of the United States, residing at Washington, in the county of Washington and State of Kansas, have invented a n ew and useful Loading and Unloading D evice, of which the following is a specification.

This invention relates to a new and improved elevating and unloading device, and has for its object to provide a machine which will be of great v'alue in wheat and alfalfa fields, for the machine may be placed on the running gear of any wagon to be operated by the driver from the front seat ;A and may be raised to the height of ten feet from the ground and dumped-in the center of the stack; and may be raised and lowered while going to and returning from the staclr; and may also be loaded from either side or turned half way around and loaded from the rear by a hay loader; and may be dumped from either side or both sides at once and will not turn over, since the weight is in the center when one side is,be inv dumped.

ZProvision is also made, by an improved form of clutching mechanism, whereby the vehicle may be move-d from place to -place without affecting the operating mechanism which raises and lowers the racks.

Means are also provided for utilizing the machine to carry fruit, vegetables and grain, and for general purposes around the farm.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawings forming part of this specification, with the understanding, however, that the invention is not confined to any strict conformity with the showing in the drawings, but may be changed and modified so long as such changes -and modifications Vmark no material departure from the salient features of the invention as expressed in the appended claims.

In the drawings D Fig. l isa side elevation of the vehicle provided with the automatic elevating and dumping mechanism.

Fig. 2 is a rear view of the same, showing the pivoted racks in normal position, and illustrating in dotted lines the dumping position.

Fig. 3 is a plan view of the same.

Fig. 4 is a horizontal section of the vehicle, disclosing the operating means connected with the supporting wheels of the vehicle andthe means for controlling the clutch mechanism.

Fig. 5 is a side elevation of the vehicle showing a modifiedform of rack, in tilted position, designed for the purpose of carryino fruit, vegetables or grain.

Fig 6 is a vertical transverse section of tIlie vlehicle, taken along the line 66 of Fig. 7 is a fragmentary view in horizontal section of the vehicle. i

Fig. 8 is a detached view of one of the dumping bodies in tilted position.

F ig. 9 is a side view of one of the sprocket wheels for the rear driving wheel.

` Fig. l0 is a perspective detail View of the clutch controlling mechanism.

Ihe elevating and dumping device comprises, generally, a body or main frame provided with axles and wheels, an auxiliary frame rotatably and slidably mounted upon a screw shaft above the main frame, the rotation of the screw shaft causing the elevating or lowering of the auxiliary frame on the main frame, dumping racks pvotally mounted on the auxiliary frame at each side, an operating mechanism for rotating the screw shaft mounted on the main frame and having operative connections with the rear axle, whereby said operating mechanism is driven by the wheels of the vehicle, independent means for manually rotating the screw shaft, an improved form of clutching mechanism for connecting or disconnecting the operating mechanism with the rear axle whereby the auxiliary frame and racks4 may be elevated or lowered relatively to the main frame, the disconnected operating mechanism permitting the auxiliary frame and the racks pivoted thereon to be elevated or lowered manually, and finally a frame providing a brace for the free end of the screw shaft and having slidable connections with the main frame.

Referring to the drawings, the body compries a main frame l, substantially rectangular in form and'rigidly mounted on a front transverse beam or bolster 2, and a rear transverse beam or bolster 3. A front axle 4e is rigidly mounted in an arched frame 5 pivotally mounted by kingbolt 6 to the front bolster 2. Front wheels 7 are rotatably mounted on the ends of the front axle. Upon the rear bolster 3 is rigidly mounted an arched framev 8 having depending legs 9 providing bearings for the rotatably mounted rear axle 10. Wheels 11 and 11a are loosely mounted on the ends of the axle 10.

Mounted centrally of the frame 1 is avvertical screw shaft 12 having a tapered unthreaded lower end 13, seated within a socket 14 supported by a longitudinal rod 15, connected at its opposite ends to the transverse bolsters 2 and 3. A worm Gear 16 having an integrally formed depending sleeve 17 is secured upon the screw shaft 12 above the lower end by means of a set screw 18, (Fig. 6).

A U-shaped transverse bracket 19, which is centrally perforated and through which the screw shaft 12 revolves, is connected at its ends to oppositely-disposed U-shaped brackets 20 secured to the frame 1 of the body of the vehicle, said brackets 20 carrying roller bearings 21 upon which the outer periphery of the worm wheel 16 revolves, (Fig. 6).A As shown in Fig. 4, oppositelydisposed roller bearings 22 mounted in U- sha ed brackets 23 and disposed at right an Iles to the bearings 21, cooperate with the ro er bearings 21 for supporting the outer periphery of the worm .gear 16.

A bracket 24, mounted transversely of the frame 1 and in juxtaposition to the worm wheel 16, (Figs. 4 and 7), provides a bearing for a shaft 25 having a worm 26 mounted rigidly therein and engaging the worm wheel 16, and when rotated, adapted to opcrate the wheel 16 for revolving the screw shaft 12.

Upon the outer end of the shaft 25 is loosely mounted a sprocket 27 engaged by a chain 28, meshing with a sprocket 29, rigidly mounted on the rear axle 10, and connected with the rear traction wheel 11 in such a manner as to provide a lost motion between the wheel and sprocket. This lost motion connection is accomplished by means of a pin 30 secured to and passed through a spoke of the rear wheel 11, and engaging at its end with one of the openings in the body of the sprocket wheel 29. The openin in the sprocket wheel is of a considerab y larger diameter than the pin 30 in order to permit a certain amount of play between the traction wheel 11 and the sprocket wheel 29, so that as the vehicle is pulled forwardly or moved rearwardly, the pinpwill not immediately engage the sprocket wheel to drive it, but the wheel will be capable of a partial rotation before the pin will engage the peripheral edge of the opening in the sprocket wheel and cause the two to 'be rotated simultaneously, (see Figs. 7 and 9).

As shown in Figs. 6 and 7, the sprocket 27 is provided with an upstanding pin 31, which is adapted to be engaged by a laterally-extending pin 32, on a slidably mounted sleeve 33, the said sleeve being adapted to be moved towards the sprocket 27, so that the ins 31 and 32 will engage each other. As t e traction wheel 11 is rotated, the pin 30 will engage the sprocket wheel 29, causing the same to rotate, and through the chain 28 cause the sprocket 27 to be rotated,

and because of the engagement of the' two pins just described, the sleeve 33 which is keyed upon the shaft 27 will cause the shaft 25 to be rotated; likewise, the worm 26, the worm wheel 16 and the screw shaft 12. The manner of shifting the sleeve 33 will be described later.

Near the end of the shaft 25, which is opposite to the end upon which the sprocket 27 is mounted, is another sprocket 34 rigidly mounted upon the shaft 25 and adapted to be rotated always when said shaft is rotated. The sprocket 34 is engaged by a chain 35, which in turn engages another sprocket 36 rigidly mounted on a countershaft 37, the countershaft having bearings in an inverted U-shaped bracket 38 mounted upon the frame 1, (Figs. 4 and 6). S-lidably mounted on the end of the countershaft is a gear 39 having a laterally projecting pin 40 adapted to engage an outstanding pin 41 mounted on theA countershaft 37, when the gear 39 is shifted inwardly towards the lug 41 in a manner which will be presently described. When the pins 4() and 41 are engaged, the gear 39 and shaft 37 will be rotated simultaneously.

A gear 42 rigidly mounted on the axle 10 is always in engagement with the gear 39, and has an upstanding lug 43 on its hub adapted to engage a pin or lug 44 securely mounted on the other traction wheel 11, so that as the wheel 11 is revolved when the vehicle is pulled forwardly, the pin 44 will be revolved to a point where it will engage the pin 43, and thereby cause the gear 42 to be rotated and likewise the gear 39, (Fig. 7 When the lugs 40 and 41 are in engagement, the rotation of the gear 39 will cause rotation of shaft 37, sprocket 36, sprocket 3'4 through driving chain 35, worm shaft 25, worm wheel 16 and screw shaft 12, but in an opposite direction to the direction of rotation caused bythe traction wheel 11.

The frame 45 and likewise the pivoted racks 46 and 47 are elevated when the shaft 12 is caused to be rotated through the sprocket 27 by means of its connection with the rear wheel 11, and these parts are lowered when the shaft 12 is rotated through the connections by means of the sprocket 34, chain 35, the gear 42, and the rear wheel 11a.

The clutching mechanism, which selectively causes the wheel 11 or the wheel 11 to operate the shaft 12 in opposite directions for elevating or lowering the racks and the auxiliary frame 45 will now be described.

A longitudinal shaft 48 is slidably and rotatably mounted in the bearings 49 and 50 at the forward part of the vehicle body or main frame. S rinV 51 and 52 are adapted to normally malntaln the shaft 48 inwardly in the osition shown in Fig. 4. A sleeve. 55 is slidaly ke ed to the shaft 48, and a spring 53, connecte at one end to the bearing 49 and at the other end to the sleeve 55, is so tensioned that it normally maintains arm 54, which is secured to the forward end of the shaft, in upri ht position. Upon thev inner end of the sha 48, is rigidly mounted a collar 56, having a depending tongue 57, engaging an opening in a link 58, (Fig. 7), and adapted to be oscillated when the arm 54 on the other end of the shaft is manually oscillated. The arm 54 has an upstanding vertical position and is normally in the same plane with the tongue 57 when in such position.

A socket. 59, mounted upon the upper end of the arm 54, is provided with a perforation, through which is inserted the angular rod 60, held in position Vwithin the perforation of the socket 59 by means of a set screw. Rigidly mounted upon the outer free end of the rod 60 is a dog 61, having inner beveled faces which neatly fit between a. pair of triangular-shaped teeth 62 of the toothed wheel 63, rotatably mounted at 64 upon the front of the vehicle and projecting slightly beyond the same, in order that the dog 61 may be engaged between a pair of said teeth.

As the arm 54 is oscillated from right to left, or vice versa, the shaft 48 will be pulled outwardly since the dog 61 will always be maintained in engagement between ay pair of the teeth, and be shifted laterally from side to side as the toothed wheel 63 is rotated.

The toothed wheel carries the dog 61 in van arc of a circle towards and away from the front end of the vehicle. The wheel 63 may be operated in any approved manner, as by a crank arm secured to the wheel and located in position to be operated by the driver of the vehicle.

The link 58 has pivotally mounted thereon theinner ends ofi- links 65, 66, (Figs. 4 and 7 The outer end of the link 66 is pivotally mounted upon the end of a lever 67, the other end of which is pivotally mounted at 71 on a bracket secured to the U-shaped bracket 38, and provided with a fork 68 engaging the slidable sleeve 33. The fork through the lever 67 is adapted to shift said sleeve on the shaft 25. The link 65 is connected to a lever 69, the other end of which is provided with a, fork engaging a reduced portion on one end of the gear 39, for shifting the gear along the shaft 37 in order to throw the pins 40 and 41 into engagement.

It will be seen that when the arm 54 is shifted from the center of the front end of the vehicle to the right, 'by the rotation of the wheel 63, the shaft 48 will be moved inwardly by reason of the teeth 62 of the wheel 63 movinginwardly in an arc of a circle towards the front end of the \vehicle,`thc dog 61 following the teeth, and permitting the shaft 48 to slide inwardly, and also rotating the shaft48 in such a manner that the tongue or lug 57 is moved towards the left, shifting the links 65 and 66 towards the left side of the frame 1, and carrying the front end of the lever 67 o-utwar ly and away from the side of theframe 1. Since the other end of the lever 67 is pivoted at 71, upon a bracket located upon the U- shaped bracket 58, the fork 68 which engages the sleeve 33 will also be moved outwardly and carry said sleeve outwardly and toward the end of the shaft 25, and cause the pin 32 to engage the pin 31 on the sprocket 27. If the vehicle is moving forwardly, the wheel 11 will be revolved together with sprockets 29, and 27, by reason of the chain 28, and cause the sleeve 33 to be rotated. lSince the sleeve 33 is keyed upon the shaft 25, the shaft 25 will be rotated, as will the worm wheel 16 and the screw shaft 12. 'V The auxiliary frame 45 and the racks 46 and 47 will thus be elevated.

As the links 65 and 66 are moved to the left of the frame as shown in Fig. 4, the outer end of the link 65 is likewise moved toward the left of the vehicle, and inwardly towards the frame, carrying the front end of the lever Y69 inwardly, while the rear end which carries the fork 7 0 will be moved outwardly, since the lever 69 is pivoted at 72 on a bracket depending below the frame 1, and thereby moving the gear 39 outwardly toward the end of the shaft 37, and carrying the in 40 away from`the pin 41 to disengage t e gear 39 from its connection with the shaft 37 The shaft 25 being ro-tated as stated above, the sprocket 34 will be rotated, and through the chain 35 will rotate the sprocket 36 and tral position, lever 67 `will be moved suffi-A ciently to withdraw the sleeve 33 inwardly from the end of the shaft 35, causing disengagement of the pins 32 and 31, while pin 40 on gear 39 and pin 41 on the countershaft 37 will not have been moved sufiiciently inward toward each other to be engaged. Traction wheels 11 and 11a may thus be revolved by the forward movement of the vehicle without causing a rotation of the shaft 25. y

If the arm 54 be moved to the left, the tongue or lug 57 will be moved towards the right, carrying the links 65 and 66 likewise towards the right, oscillating the levers 67 and 69 on their pivots. The forked end of the lever 69 will be moved inwardly, carrying the gear 39 sufficiently inward and away from the end of the shaft 37, so that pin 40 will lengage the pin 41. The simultaneous oscillation of the shaft 67 on its pivotal point 71,- will cause the sleeve 33 to be moved farther inwardly from the end of the shaft 25, so that pins 31 and 32 will be farther removed from each other to maintain the sprocket 27 and the shaft 25 in disengaged relation to each other. In this position, the sprocket 27 will rotate idly on the shaft 25, but the sprocket 34 which is secured to the shaft 25 will be rotated through the chain 35, sprocket 36, shaft 37, gear 39, by reason of the engagement of thel pins 40 and 41, gear 42 in mesh withthe vgear 39, and lastly,

through the wheel lla'by reason of its connection with the gear 42, through the pins 43 and 44. v

It may be stated here that in either case where the wheels 11 and 11*1 are rotated by traction, that the axle 10 will always be rotated by both wheels simultaneously through gear 42 being connected to the axle and also to the wheel 11a. The sprocket 29 connects the axle 10 with the wheel 11, whereby wheel 11 rotates the axle.

Slidably 'mounted upon the screw shaft 12 is an internally threaded sleeve 73, secured to a beam 74 arranged longitudinally of the frame 45, having secured upon its outer ends transverse members 75, Iupon which are pivotallymounted, at 76 and 77,

. racks or dumping bodies 46 and 47, respectively. The racks 46 and 47, shown in Figs. 1 to 4, inclusive, and Fig. 6, are designed for carrying hay or fodder, while the rack or dumping body 78, shown in Fig. 5, is for the purpose of carrying grain, fruits or vegetables.

The racks disclosed in Figs. 1 to 4 inclusive, and Fig. 6, have a base portion 7 9, end members 80, and adjacent inner side members 81 formed of a framework provided with spaced vertical bars. Through the spaces between these bars are adapted to operate bars 82 forming a sort of rake. which bars are secured at their upper ends in a longitudinal bar 81a pivoted on'each of the dumping bodies. To one end of each longitudinal bar is mounted a handle 83 for oscillating the prongs or bars 82 of the rake for moving the hay or fodder or other contents outwardly towards the sides of each dumping body to force the material from the same. As Fig.l 3 shows, one handle 83 is located at the front end of one of the rakes a-nl the other handle is placed vat the rear en The dumping bodies or racks 46 and 47 are pivotally mounted upon the auxiliary frame 45, and are each partly maintained in Maaate position by means of a crank arm 85 which yond the end of each dumping body, and is provided with a crank arm 87, adapted to be held in place by aperforated clip 88, through which the free end of the arm 87 is inserted, the clip being slidably mounted upon the transverse bar 75, (Figs. 2 and 3).

This

mechanism is in duplicate, one for each dumping body being located at opposite ends and in reverse positions. l/Vhen the clip is moved sufficiently along'the bars 75 to be entirely removed from engagement with the end of the rod 87, the rod 87 may be tilted upwardly, carryinggw'th it the operating arm 85, and causing the umping body to be tilted outwardly'y and in dumping position for discharging the hay or fodder from the racks.

The screw shaft 12 being mounted vertically and centrally of the malin body of the vehicle is therefore located between the inner sides of the dumping bodies, and the bodies may be locked in normal position by means of the locking members 89, pivoted to a collar 89` of sleeve 90, which is loosely mounted upon the upper free end of the screw shaft 12. These locking members are to be manually operated.

M ounted upon the upper end of the sleeve 90, 1n lugs projecting in o posite directions upon opposite sides of tfe sleeve, are a pair of brace rods 91 extending forwardly towards the front of the vehicle, and secured to thephollow downwardly-depending rods 92, which are telescop-ieally mounted upon vertical posts 93, firmly secured to the front end of the main frame 1 of the vehicle. Rigidly secured to the sleeve 90 and projectlng rearwardly from said sleeve is a single brace rod 94, rigidlysecured to a downward ly-depending hollow rod 95, telesoopically mounted upon an upstanding post 96 secured upon the rear end of the frame 1. The two bodies or racks are arranged close together at their meeting sides and their top rails 82a are cut out at the center to embrace the sleeve 90.

The sleeve 90 being lose upon the shaft 12 is adapted to be moved in a vertical position along the screw shaft, when the upper rails 82a of the bodies contact with the collar 89a, causing the brace rods 91 and 94 to be moved upwardly and thereby carrying the hollow rods 92 and 95 slidably mounted upon the posts V93 and 96. The purpose of this construction is to provide for lsu porting the racks or bodies in the various y adjusted positions. By this construction-the bodies may be raised to a height of ten feet above the ground, and the braces will follow the adjustment of thc bodies. Y

Thel posts 93 and 96 cooperate with the hollow rods 92 and 95, and the horizontallyextending rods 91 and 94, to form a bracing means for su porting the upper free end of the screw iaft 12.

Projecting outwardly from the endsbf the auxiliary frame 45 are lugs upon wlnch are pivotally mounted U-shapcd clips 97 and 98. The front U-shaped clip 97 is adapted to engage a lug 97n upon the front part ot' the framework 1, while the rear U-shaped clip 98 is adapted to engage the rod 95 and maintain the frame 45 and the racks 46 and 47 in a position longitudinally of the body, which is the normal position of the racm.

The racks 4G and 47, as illustrated in Figs. 1 to 4, inclusive, and Fig. 6, are not only differently constructed for the urposes of holding different kinds of materials, but the gate construction as well as operation of the preferred i'orm and the modified form are somewhat different. Referring more particularly to Figs. 1 and 2, the pivoted racks 46 and 47 each have pivoted gates 99, mounted upon the ends of arcuate brackets 100,

which are secured to the ends of the racks.

A rod 101 is secured in the outer free end of each top beam 102 of the gate, and extends rearwardly and downwardly along the outside end of the rack and has a crank portion 103 bent at right angles to the rod 101 and passed through a perforation in the bracket 100 and secured in the lower beam or base of the gate. Springs 104 are fastencd at 105 to each end of the rack, extend outwardly along the ends of the rack, and have their outer free ends slidably mounted upon the rod 101. This construction is duplicated at each end of the rack. The inclination ot thejspring 104 from the horizontal is such that whether the gate is closed or open` the spring will always be maintained at the same angle relative to the horizontal. This is accomplished by means of the sliding connection between the spring 104 and the rod 101, and because of the right angular bent portion of the rod, as shown at 103. When the gate is lowered or tilted outwardly from the rack, as shown in Fig. 8, the eye 105 of the spring will always be maintained in the same position, since the rod 101 and bent portion 103 change their positions relatively to the end 105 of the spring in such a manner that the rod 101 moves through the yeye without changing the inclination of the spring 104.

Chains 106 are adapted to be connected between the ends of the rack and the top of the gate to limit the outward throw of the gate.

As disclosed by Fig. 5, the rack 78 is adapted .for the purpose of containing other, and are maintained in outward position by means of the flanges 110, formed on the side edges of the spout 107. The chain I 111 is adapted to cooperate with the flanges 110 to prevent the gates from being forced open by the weight of the fruit or vegetables contained in the rack 78. If necessary, the chain 111 may be drawn up taut and bring the two outer edges of the gates together and close the opening.

As has been stated above, the clutching mechanism is adapted to disengage the sprocket 27 from the shaft 25, and likewise the gear 39 from its engagement with the shaft 37, thereby permitting the vehicle to be drawn fbrwardly, with the wheelsl 11 and 11a revolving, without rotating the worm shaft 25 and causing the screw shaft 12 to be rotated. If, at any time, it be desired to elevate or lower the auxiliary frame 45 which carries the racks 46, 47 or 78, the

same may be done without the use of the power for moving the vehicle, or there may be times when it is not feasible to lower or elevate the racks by means of the power developed from the traction wheels of the moving vehicle. At such a time, the hand crank 112, which is connected to the worm shaft 25, may be operated in the direction indicated by the arrow in Fig. 1, for rotating the screw shaft 12 to elevate the racks and the auxiliary frame. In order to lower the racks of the frame, the crank arm 112 may be operated in a reverse direction, but before the screw shaft may be rotated by means of the crank arm 112, the clutch must be thrown in such a position that the arm 54 will be vertically positioned, when the wheels 11 and 11 will be disconnected from the mechanism which operates the' worm shaft 25 In this position of disengagement, the worm shaft may be readily rotated by the crank arm 112 in either direction for elevating or lowering the racks. The crank `arm is removable, as shown in Fig. 6, and is only used when the occasion requires.

The operation of the device is as follows While I have described the operation of the different parts in their cooperative engagement with each other for producing certain results, nevertheless I will summarize in a general manner the operation of elevating or lowering the racks by means of the construction described.

A,In drawing thel vehicle from one place to another, the arm 54 of the clutching mechanism is normally placed in a vertical position and held in such a manner byv means of the engagement with the dog 61 between a pair of teeth 62 of the toothed wheel 63. ln this position, the levers 67 and 69 will have positioned the sleeve 33 away from the end of the shaft 25 so that the lugs 31 and 32 are out of engagement, while the lever 69 will move the gear 39 outwardly and toward the end of the countershaft 37, so that the pins 40 and 41 will be disengaged. It will be seen that when the wheels 11 and 11 are revolved by traction, they will drive the axle 10 and likewise gears 42 and 39, and sprockets 29 and 27, without causing rotation of the shaft 37. Therefore, the sprockets 34 and 36 will remain idle, as likewise will the -shaft 25. The sprocket 29 will be rotated to drive the chain 28 and the sprocket 27, but since the sprocket 27 is loosely mounted on shaft 25 and not in engagement with the sleeve 33, sprocket 27 will revolve idly on the shaft without causing rotation of t-he shaft 25. In this position of the clutching mechanism, the vehicle may be drawn forwardly without affecting rotation of the shaft 25 or the screw shaft 12.

If it be desired to elevate the racks 46 and 47, after the racks have been loaded with hay or fodder, at a short distance before reaching the destination where the material is to be dumped, and towards which the vehicle is being drawn, the clutch is thrown towards the right in front of the vehicle, when the lever 67 will be moved outwardly beyond the side of the frame 1, carrying with it sleeves 33 and throwing pins 31 and 32 into engagement with each other, so that as the sprocket wheel 27 is rotated by the wheel 11 and the axle 10, the worm shaft 25 likewise causes the worm, wheel 16 and the screw shaft 12 to be rotated and thereby elevate the racks. lf the place of destination has not been reached before the racks have been elevated to the proper height, the clutch may again be thrown into neutral; that is, with the operating arm 54 of the clutching mechanism being placed in its vertical position in the center of the front end of the vehicle and held by the toothed wheel 63.

The vehicle having reached its place of destination and the racks 46 and 47 having been elevated to their proper height, one of the clips or locking members 88, which are slidably mounted upon the auxiliary frame 45, is moved outwardly towards the end of the bar 75 and disengaged from the operating rod 87. The operating rod 87 may be lifted, and by reason of the arm 85 which is connected to the arm 87 and likewise to the pivoted rack 46 by means of a socket 86, the rack will be tilted as the arm 87 isl The weight of the material, suchl raised. as hay or fodder, in the racks will be sufficient to open the gates 99ywhen the rack has been tilted upon its pivot 76, and the fodder or hay will dro out of the racks into the barn o'r onto t e stack. If it be found that the hay or fodder collects at the inside of the rack, the arm 83 may be oscillated, causing the rake 82 to force all such material forwardly and down the inclined bottom of the rack.

After one side has been emptied of its material, the arm 87 may be returned to its position and locked upon the clip 88, therey returning the dumping body or rack to its normal horizontal position. rlhe racks and auxiliary frame 45 mav be rotated upon the shaft 12 after the clips 97 and 98 have been removed from their engagement respectively with. the lug 97 and the slidable member 95 of the brace member. After the rack, which has not been emptied, has been turned toward the barn, the clips 97 and 98 will be dropped back in their locking position, when the rack may be tilted in the same manner as described for the first rack.

The rack 78, shown in Fig. 5, which is a modification, is tilted in the same manner as are the racks 46 and 47, and the auxiliary frame 45 is adapted to be elevated and lowered by the rotation of the shaft 12. The auxiliary frame may be rotated upon the shaft 12 as an axis for bringing either of the racks 78 upon one side of the vehicle and for the purpose of emptying both racks on one side.

When it is desired to lower the auxiliary frame 45 and the racks 46 and 47 ,the operating arm 54 of the clutch is thrown over to the left, when the outer end of the lever 69 will be thrown outwardly from the side of the frame 1 and rotated upon its pivot 72. so that the inner or forked end of said lever is thrown inwardly, and the gear 39 is shifted inwardly and away from the end of the shaft 37.l so that the lugs 40 and 41 will be in engagement with each other and the gear 39 will operate the shaft 37; likewise,

the sprockets 36 and 34, worm shaft 25, worm gear 16 and the screw shaft 12. At the saine time, the lever 67 will also be oscillated and moved inwardly towards the frame 1, causing the sleeve to be moved inwardly from the end of the shaft 25 and disengaging the pins 31 and 32, when the sprocket 27 will rot-ate idly1 on the shaft 25. When the shaft 12 is rotated, through the gear 42, countershaft 37, sprockets 36 and 34, the movement will be in a direction which is reverse to the direction indicated by the arrow in Fig. 1, and therefore will cause the racks 46 and 47 to be lowered as the vehiclc is driven forwardly and away from the barn or its former dumping place. lVhen the racks have been sufiiciently lowered, the internal sleeve 73 will rest upon the spring 113, and the operating arm 54 of the clutching mechnism will be again shifted 1nto its normal neutral vertical position upon the front end of the vehicle frame.

As the auxiliary frame 45, carrying the racks 46 and 47, is elevated by means of the rotating screw 'shaft 12, the bracing means which supports the upper free end of the screw shaft 12 will be carried .upwardly by reason of the inner adjacent sides of the racks engaging the slidable sleeve 90 of said bracing means, and causing the said sleeve to be moved upwardly on the shaft 12, and by reason of the outwardly-extending arms 91 and 94, the telescoping rods 92 and 95, which are respectively slidably mounted on the front post 93 and the rear post 96, will be carried upwardly with the sleeve.

The clips 97 and 98 not only lock the auxiliary frame 45 and the racks 46 and 47 from rotary movement on the shaft 12, but the clip 98 has slidable enga-gement with the telescoping rod 95 so that no matter how high the racks are raised, they are held from such movement. By disconnecting the clip 98 from the rod 85, the racks may be turned as desired.

For lowering the empty racks, the crank handle 112 may be operated in a. direction which is the reverse of the direction indicated by the arrow in Fig. 1, after the operating arm 54 has been placed in its normal neutral vertical position on the front end of the vehicle frame.

In filling the racks 46 and 47, in which fodder or hay is packed, for removal from one part of the farm to another, the auxiliary frame 45 is rotated upon the shaft 12 as an axis so that the racks 46 and 47 are located transversely of the body and are positioned in this manner, since it is more convenient for loading the same. After theracks have been loaded they may be returned to their normal longitudinal position along the frame and locked in position by means of the clips 97 and 98. It is possible to load the racks from either side, or turned half way around and load from the rear of the vehicle. or they may be dumped from either side. separately, or both at once, and the machine will not turn over.

lVhat is claimed is:-

1. A device of the character described, comprising a wheeled supporting frame, a screw shaft mounted upon said frame, an auxiliary frame provided with a rack having a vertical and rotary movement on the shaft, which extends above the auxiliary frame, and means for rotating said screw shaft for imparting a vertical movement to the auxiliary frame and the rack, and anl overhead means above the rack connected to the upper end of the screw shaft for bracing the same.

2. A device of the character described, comprising a wheeled supporting frame, a screw sha t mounted upon said frame substantially in the center thereof, an auxiliary frame having an internally threaded sleeve engaging with said screw shaft and a vertical and rotary movement on said shaft, means for rotating said screw shaft for imparting a vertical movement to the auxiliary frame, and racks pivotally mounted at the outer sides of the said auxiliary frame on opposite sides of Said shaft, and movable outwardly from said shaft in dumping, and when in normal closed position embracing said shaft.

3. A device of the character described, comprising a wheeled supporting frame, a vertically-disposed screw shaft mounted centrally upon said frame, an auxiliary frame having an internally threaded sleeve engaging with said screw shaft and movable both vertically and horizontally thereon, racks carried by said auxiliary frame on opposite sides of the longitudinal center of the wheeled frame, said racks being pivotally mounted to dump at each side, and means mounted on the screw shaft engaging the inner side of the racks to hold the same from dumping.

4. A device of the character described, comprising a wheeled supporting frame, a vertical screw sha-ft mounted upon said frame, an auxiliary frame mounted central ly on said shaft and carrying a rack and having a vertical movement on the shaft, means extending from the wheeled frame outside the rack for bracing the upper end of the shaft, a worm wheel mounted at the lower end of the screw shaft, a worm engaging the worm wheel, and means for rotating the worm wheel through one of the wheels of the supporting frame,

5. A device of the character described, comprising a wheeled supporting frame, a vert-ical screw shaft mounted upon said frame, an auxiliary frame mounted centrally on said shaft and provided with a rack having a vertical movement on said shaft, means extending from the wheeled frame outside the rack for embracin the upper end of the shaft, an axle rotataly mounted on the supporting frame, wheels mounted on the axle, a sprocket rigidly mounted upon the axle adapted to be rotated by one of the wheels, a worm shaft on the supporting frame provided with a worm wheel, a worm mounted on' the screw shaft and meshing with the worm, a sprocket loosely mounted on the worm shaft connected by a chain to the sprocket on the axle, and a clutch mechanism for connecting the loosely mounted sprocket on the worm shaft with said shaft.

6. A device of the character' described, comprising asupporting frame mounted upon traction wheels, an axle rotatably mounted on the supporting frame, a vertical screw shaft mounted upon said frame, an auxiliary frame provided with a rack and having a vertical movement on the shaft, said vshaft being located centrally of the auxiliary frame and extending above the same, and an overhead means above the rack connected to the upper end of the screw shaft for bracing the same, a worm shaft mounted on the supporting frame and geared to rotate the screw shaft, a gear and sprocket rigidly mounted on the axle and adapted to be operatively connected with the worm shaft, the sprocket and gear having separate connections with the traction wheels, and means for connecting the sprocket with the worm shaft while simultaneously disconnecting the gear with said shaft.

7. A device of the character described comprising a wheeled axle, a supporting frame mounted thereon` a screw shaft mounted upon said frame, gearing connecting the shaft with the axle and including a lost m0- tion connection, an auxiliary frame provided with a rack and having a vertical movement on the shaft, a worm shaft mounted on the supporting frame and geared to rotate the screw shaft, a gear and a sprocket rigidly mounted on the axle and adapted to be operatively connected with the Worm shaft, the sprocket and gear having separate connections with the traction wheels, means for connecting the gear with the worm shaft while simultaneously disconnecting the sprocket with said shaft, said means being adapted to simultaneously disconnect both the sprocket and the gear from said shaft.

8. A device of the character described comprising a wheeled axle, a supporting frame mounted thereon, a screw shaft mounted upon said frame, gearing connecting the shaft with the axle and including a lost motion connection, an auxiliary frame provided with a rack and having a vertical movement on said shaft, a worm shaft mounted. on the supporting frame and geared to rotate the screw shaft in one of two directions, a gear and sprocket rigidly mounted on the axle and adapted to be operatively. connected with the worm shaft, the gear and sprocket each having separate connections with a traction wheel, means for connecting one of said sprockets with the worm shaft while simultaneously disconnecting the other sprocket with the worm shaft, said sprocket when connected with the worm shaft being adapted to rotate the screw shaft for elevating the auxiliary frame when the traction wheels are rotated, and said screw shaft adapted to be operated in a reverse direction for lowering the auxiliary frame when said gear wheel on the axle is connected to the worm shaft and operated by the traction wheels.

9. A device of the character described, comprising aA wheeled supporting frame, axles rotatably mounted on the frame, traction wheels loosely mounted on the axle, a gear and a sprocket rigidly mounted on the axle, said wheels having separate connections with the sprocket and gear, a screw shaft mounted on the frame, an auxiliary frame provided with a rack and having a vertical movement on the shaft, a countershaft mounted on the supporting frame, a worm shaft rotatably mounted on the frame geared to operate the screw shaft and having operative connections with the countershaft, a pinion slidably mounted on the countcrshaft and engaging the gear on the axle, a sprocket loosely mounted on the worm shaft having connections with the sprocket on the axle, a clutch mechanism adapted to cause the sprocket on the worm shaft to engage the shaft and rotate the same when the traction wheels are rotated and to simultaneously disconnect the pinion from driving relation with the countershaft.

10. A device of the character described, comprising a wheeled supporting frame, axles rotatably mounted on the frame, traction wheels loosely mounted on the axle, a gear and a sprocket rigidly mounted on the axle, said wheels having separate connections with the sprocket andgear, a screw shaft mounted on the frame, an auxiliary frame provided with a rack and having a vertical movement on the shaft, a countershaft mounted on the supporting frame, a worm shaft rotatably mounted on the frame adapted to operate the screw shaft for elevating or lowering the auxiliary frame and having connections with the countershaft, a pinion slidably mounted on the countershaft and engaging the gear on the axle, a sprocket loosely mounted on the worm shaft having connections with the sprocket on the axle, a clutch mechanism adapted to simultaneously cause the sprocket on the worm shaft to engage the shaft and rotate the same when the` wheels are rotated land to disconnect the pinion from driving relation with the countershaft, said clutch mechanism adapted to simultaneously disconnect the loosely mounted sprocket and the countershaft from driving relation with the worm shaft, and manual means for rotating the worm shaft in either direction for causing rotation of the screw shaft when said sprocket and countershaft are disconnected.

11. A device of the character described, comprising a supporting frame, a vertical screw shaft rotatably mounted centrally on said frame, an auxiliary frame providedv with a rack having a vertical movement on `said shaft adapted to be elevated or lowered.

by rotation of said shaft, means for rotating said shaft, posts mounted upon the ends of the supporting frame, and a bracing means for the upper free end of the screw shaft slidabl mounted on said posts.

12. device of the character described, comprisin a supporting frame, a vertical screw shaft mounted centrally'on said frame, means for rotating said shaft, an auxiliary frame provided with a rack and having vertical movement on said vshaft so as to be elevated or lowered by the rotation of said shaft, posts mounted upon the supporting frame at the front and rear, and a bracing means for the upper end of the screw shaft slidably mounted on said posts and also slidably connected to the end of the screw shaft.

13. A device of the character described, comprisin a supporting frame, a vertical screw sha t mounted centrally on said fra-me, means for rotating said shaft, an auxiliary frame having a rack and connected to said shaft so as to be elevated or lowered by rotation of said shaft, posts mounted upon the ends of the supportin frame, bracing means between the upper en of the screw shaft and said posts, said bracing means being elevated with the shaft when the latter is rotated.

14. A device of the character described, comprising a supporting frame, a vertical screw shaft mounted centrally on said frame, means for rotating said shaft, an auxiliary frame having a rack and connected to said shaft so as to be elevated and lowered by the rotation of the latter, a sleeve loosely mounted at the top of said shaft, posts arising from the supporting frame, and bracing means between the movable sleeve and said posts having a fixed connection with the sleeve and an extensible connection with the posts, whereby when the rack is elevated it contacts with the sleeve and raises the latter and `thereby elevates the bracing means in harmony therewith.

15. A device of the character described` comprising a supporting frame, a vertical shaft mounted centrally on said frame, means for rotating said shaft, an auxiliary frame having `a rack and connected to said shaft so as to be elevated and lowered by the rotation of the latter, and bracing means having connection with the top of said shaft and raised and lowered in harmony with the raising and lowering of the rack.

16. A deviceA of the character described, comprising a'supporting frame, a vertical shaft mounted centrally on said frame, an auxiliary frame having a vertical and a rotary movement on said shaft and provided with pivotally mounted rac-ks, a sleeve movably mounted at the to on said shaft, and means connected with t, e sleeve for engaging and locking the pivoted racks in position on the auxiliary frame.

17. A device of the character described, com rising a supportin frame, a vertical sha t mounted on said frame, an auxiliary frame having a vertical and a rotary movement on said shaft and provided'with pivotally mounted racks arranged side by side and on opposite sides of the shaft, a sleeve movably mounted at the top of said shaft, and depending rocking members carried by said sleeve adapted to enga e the inner sides lof the racks for locking t e same in position on the auxiliaryl frame.

`\-18. device of the character described, comprising a supporting frame, a vertical shaft mounted centrally on j said frame, an auxiliary frame having both a vertical and a rotary movement on said shaft, means for rotating said shaft for elevating and lowering the auxiliary frame, racks Apivotally mounted on the auxiliary frame, means locked upon the auxiliary frame for maintaining the pivoted racks in position on the frame, said means when released adapted to be operated for dumping. said racks.

19. device of the character described, comprising a supporting frame, a vertical shaft. mounted centrallyon said frame, an auxiliary frame having both a vertical and a ro-tary movement on said shaft, means for rotating said shaft for elevatin and lowering the auxiliary frame, racs pivotally mounted on the auxiliary frame and adapted to swing outwardly, and separate means mounted upon the auxiliary frame and connected with the racks for -tilting the same, said means being located at opposite ends of the auxiliary frame and adapted to be locked in position.

20. A device of the character described, comprising a supporting frame, a vertical shaft mounted centrally on said frame, an

Aauxiliary frame having both a vertical and a rotary movement on said shaft, means for rotating said shaft for elevating and lowering the auxiliary frame, racks pivotall mounted on the auxiliary fra-me and tiltable outwardly at opposite sides, a shaft mounted at each end o-f the auxiliary frame, said shafts each having a crank arm adapted to engage with a socket provided in the bottom of each rack, and means at the end of the shaft outside the racks for locking the same.

21. A device of the character described, comprising a supporting frame, a shaft mounted centrally on said frame, an auxiliary frame having a vertical movement on said shaft, means fo-r rotating said shaft for elevating and lowering the auxiliary frame, racks pivotally mounted on the auxiliary frame and tiltable outwardly at opposite sides, the inner side of each rack bein formed of spaced bars, and a rake mounte along thc inner side of each rack and having its teeth movable through the spaces between the bars of the racks.

22. A device of the character described comprising a supporting frame, a vertical shaft mounted centrally on said frame, an auxiliary frame having vertical and rotary movement on said shaft, means for rotating the shaft for elevating and lowering the auxiliary frame, racks pivotally mounted on the auxiliary frame and tiltable outwardly, and means pivotally mounted at the inner side of each rack and adapted when operated to force materials carried by said rack out of the rack when the same has been tilted to dumping position.

23. A device of the character described, comprisingv a supporting frame, a vertically movable pivoted rack mounted on the frame and tiltable outwardly, one side of the rack being formed with spaced bars, a rake mounted alon@r the same side of the rack as said bars and having its teeth movable in the spaces between the bars of the rack, and manually operated means for tilting the rake.

24. A device of the character described, comprising a supporting frame, a vertical Shaft mounted on said frame, an auxiliary frame having both a vertical and a rotary movement on said shaft and provided with a rack, means for rotating said shaft toraise and lower the auxiliary frame, and pivoted clips mounted on extensions of the auxiliary frame to engage fixed parts of the stationary frame to hold the auxiliary frame from rotation.

25. In a device of the character described, the combination of a pivoted rack having a pivoted gate at one side, a pair of rods each having a crank portion and arranged at opposite ends of the rack and connected to the pivoted gate, and a spring fastened to each cnl of the rack and slidable freely upon the ro 26. A device of the character described, comprising a supporting frame, a vertical shaft mounted centrally on said frame, means for rotating the shaft, an auxiliary frame elevated or lowered by the rotary movement of said shaft and provided with a rack, said auxiliary frame adapted to be manually rotated on the shaft, posts mounted upon the supporting frame, a bracin means for the upper end of the screw sha t slidably mounted on said posts, and means pivotally mounted on the auxiliary frame and adapted to engage the bracing means for maintainin the auxiliary frame in position longitudinally of t e supporting frame.

27. A device of the character described, comprising a supporting frame, a screw shaft mounted centrally of said frame, pivotcd racks having connections with the screw shaft for supporting and locking the racks against tilting, said racks being raised and lowered by the rotation of the screw shaft, and means for rotating said shaft.

28. A device of the character described, comprising a` supporting frame pro-vided with axles and wheels, a screw shaft mounted vertically on said frame, a rack having connection with said shaft, means connected with an axle and a wheel for causing rotation of the screw shaft in one direction, a second means connected with an axle and and a wheel to cause the reverse motion of the screw shaft, and means adapted to be operated from` thefront of the supporting frame for connecting either of said mea-ns with an axle or simultaneously disconnecting both the said means, including a longitudinal shaft `slidably and rotatably mounted at the forward end of the frame and having an upstanding arm, a dog carried by said arm, a toothed wheel adapted to be engaged by said dog, and link mechanism operated by the slidable movement of said longitudinal shaft.

In testimony that I claim the foregoingas my own, I have hereto afhxed my signature.

ALVA LARENCE OLIPHANT.

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