US1396106A - Spreading device - Google Patents

Description

D. GARST. SPREA-DING DEVICE. APPucAJIN FILED. ocr. 1-2. 1,920.

1,396, 1 O6. Patented Nov. 8, 1921 4 SHEETS-SHEET l.

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D. GARST.

SPREADING DEVICE.

APPLICATION FILED ocT.12, |920.

Patented Nov. 8, 1921.

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SPREA-DING DEVICE. APPLICATIQN msu oc.12, 1920.

1,396,106, Patented Nov. 8,1921.

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D. GARST. SFREDINGDEVICE. APPLICATION FILED ocT.`I2. |920.

Patented Nov. s, 1921.-

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PATENT OFFICE.

DUDLEY GARST, OF WATERLOO, IOWA.

SPREADING DEVICE.

Specification of Letters Patent.

Patented Nov. 8, 1921.

Application filed. October 12, 1920. Serial No. 416,397.

To @ZZ fio/lmnvz5 may concern.'

Be it known that l, DUDLEY Gener, a citizen of the United jtates of America, and a resident of VWaterloo, Black Hawk county, lowa, have invented certain new and useful Improvements in Spreading Devices, of which the following is a specification.

My invention relates to improvements in spreading devices, particularly to machines for evenly distributing straw, manure and the like, broadcast upon the soil.

An object of my improvements is to combine with the assemblage of delivering and distributing mechanisms, means for assisting in forwarding the load to said mechanisms constantly and evenly withoutlumpsor consolidations, thus insuring proper handling and evacuatiqn of the load.

A further object of my improvements is to associate with the above means resilient hangers or light yieldable pressure elements which may bear with 'a required reactive.

power upon the crest of an advancing load directively. A further object of my improvements is to include a suitable removable barrier in advance of the rotatable distributer adapted to keep the materials away therefrom during loading of the rack, to obviate interference and possible breakage.

A further objectk of my improvements is to furnish a wind-shield or hood for the rotatable distributer, to prevent wind scattering of light materials, and coniine distribution within proper limits.w y

lith the foregoing and other objects in view which will appear as the description proceeds, the inventionresidesin the combination and arrangement of parts and in the details of construction hereinafterv described and claimed, itl being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of what is claimed, without departing from the spirit of the invention.

These improvements also are improvements in the device which I have previously patented under Patent No.l,l47,0l2, of July 20, 1915.

I have accomplished the above objects by the meanswhich is hereinafter' described and illustrated in the accompanying drawings. Figures l and 2 are elevations of opposite sides of the machine, Vwith parts removed or broken away. F ig, 3 is a rear elevation of the device with the wind shield removed.

Fig. l is a detail side elevation of one of the traction-wheels and the means employed to elevate the lower flight of an apron chain above it. Fig. 5 is a perspective view of the reciprocatory directing device, and Fig. 6 is an under plan of the same. Fig. 7 is a side elevation of said directing device. Fig. 8 is a detail side elevation of one of the resilient pressure bars, the dotted lines indicating different positions thereof under varying degrees of compression.

Similar numerals of reference denote corresponding parts throughout the several views.

My improved device relates primarily to straw spreaders wherein a rack of large capacity is used. The relatively capacious rack is of skeleton construction, the spaced sideboards 3 being secured on stanchions 4 preferably converging upwardly, the general construction of the rack, with its carrying wheels 6, traction wheels 7 and reach 11 being like that shown in my said patent. Sprocket-rings 8 are mounted on the spokes of said traction wheel.

The device contains load moving means consisting of an endless carrier apron. This has endless side sprocket chains 18 of which Vthe upper flight moves rearwardly over the floor of the rack adjacent said stanchions, the opposite chains being connected by crossbars in a well-known manner, to receive and push along a superposed load. The forward ends of these chains are mounted on idler sprocket wheels 20, while the rear ends of the chains are mounted on sprocket wheels 2l fixed on a positively rotated shaft 22 carrying on one end a driven ratchet-wheel 24.

They numeral 44 denotes a transverse beater-drum of well known construction, whose longitudinal peripheral bars carry staggered radial beater-teeth or pins 45. This drum is fixed upon a rotatable shaft 42 mounted in bearings on the rear-most stanchions 4, above the rear end of said conveyer apro-n.

The numeral 49 denotes a rotatable shaft mounted below the rear end of the rack, and carries on its opposite extremities like sprocket pinions 50 which carry the rear ends of sprocket chains 52. The lower flights of the chains 52 are positioned immediately above the sprocket rings 8 for occasional engagement therewith. The upper flights of said chains are carried over idlers 19 on the side-beams 12 to support them at a proper elevation, and the forward ends of said chains are carried' about idlers 53, the latter being mounted rotatably on the extremities of arms or cranks 54 ixedon the ends of the transverse rock-shaft- 66 which ismounted in thehangers 55. Other arms or cranks 65 extend upwardly from said rock-shaft. The rack has a forwardly extending platform .60 upon one side of which is fixed a rack sector 62, and a hand lever 61 is pivoted on the latter and provided with a movable detent for engagement with re- Y cesses in the rack sector. A connecting rod r64 connects said lever to the upper'end of the' right hand arin 65. Said lever may be appropriately shifted to rock the shaft 66 to n'iovethe idlers 53 up or down to place the lower flights of the chains 52 out of orinto engagement with the driving sprocket rings 412, and this arm carries a terminal pintle on which is rotatably Ymounted an idler 56, the idler being positioned below said cham 52 tc occasionally Vengage and lift the lower flight Y wardly. 3 5j of the chain when the arm 57 is swung up- 59 is a projection 58, and a connecting-rod 60 connects this projection terminally with Y l the hand-lever 61, so thattlie latter when v rocked to lift the arm 54 may also rock the arm 57 upwardly, so that both idlers 53 and 56 operate to simultaneously lift the chain 5 2 out of engagement with the sprocket-ring 8. Rocking the hand-lever in an opposite direction will low'erthe idler 56 out of engagement with said chain, while simultaneously lowering the other idler 53 to engage the chain with a considerable arcrof said ring 8. Both chains 52 are supplied with vthese devices for simultaneous actuationsin Vthe engaging and disengaging of the chains.

On one end of the transverse shaft 49 is fixed a sprocket wheel 48 which carries a sprocket .n chain 47 which also engages a sprocket wheel 46 on one end of the beater`- drum shaft 42 for rotating the latter. On the opposite extremity of the shaft is iixed a sprocket pinion 43 carrying a sprocket chain 40 which latter engages a sprocket wheel 39 rotatably mounted on a stub-shaft or pintle 41 projecting from the rack. Qn a spoke of the wlieel39 is a crankpin 38 on which is pivoted the upper end of a pitman 37, and the lower endof said pitinan'is pivotally connected `at 31 to a slidebody 29, the latter being slidably mounted onfa U-shaped arm 23 which is positioned Upon the arm 57 near the pintleV astride the ratchet-wheel 24 with the ends of its members pivoted to rook'on the shaft 22. The extentof play of the slide-body 29 on said U-shaped arm 23 may be adjusted by the following described means. 33 is a hand-lever pivoted at 35 Aat its lower end and extends upwardlyrpast a rack-bar 34 which it is adapted to Vreleasably Vadjustably engage by means not shown.

30 and 32 are pivotally end-connected rods, an end of therodV 32 being'pivoted to the liand-lever.33, while an end ofthe rod 30 is pivoted to the pitman 37 and the slide-body 29 on the same pintle 31.. A terminally hooked pull-pawl 25 is pivotally mounted on the U-shaped arm 23 to engage teeth Vof said ratchet-wheel 24 and is yieldingly retained in contact with said teeth by means of a light tension coiledfspring 28 connected thereto and to said arm. guard pawl 26 also engages teeth of said ratchetwheel, andis pivotally mounted on a stanchion 4 andjhas an arm to which is con nected a light coiled tension spring 27 to retain the pawl in yielding contact with the lteeth of the ratchet-wheel. It will be observed ter to strip the load eiiciently'and regularlyV without clogging. v Y.

I have provided a novel and leiiicient mech'- Vso anism for acting uponthe uppersurface of the rear part of the load.Y The 'device or director 74 whichv is in `detail shown-in Figs. f

5 to 7 is a rectangular frame'composed of spacedrlongitudinal bars 74 connected Vat their ends'by cro`ss-beams 79, and the interspace is'traversed by a number of spaced parallel longitudinal bars 75 whose ends are secured to said cross-beams. The'bars 75 are spacedat 83 below the bars 74 by the interposed ends of tliexcross-beams, and these interspaces 83 are Vtraversed by a flat bar 77,

beyond the bars 74, are bent Vupwardly and orificed for bolts which secure these ends Vfixedly to the abutting top bars 3 of theV rack. The Vdirector 74 is'reciprocated'in a a crank 96 which `is securedtoopposite endV of shaft 69. The sprocket wheel 68 is mounted on a through-shaft 69 and carries the upper part of a sprocket chain 67. The lower part of this sprocket chain 67 is fengaged about the sprocket pinion 46 on the beater drum shaft '42, the` latter thus,by

means of the above described mechanism,YY

ll0 preferably of Vmetal whose ends 82 project causing lengthwise reciprocation of the director 7 4. The director is preferably mounted upon the rear partof the rack, inclined downwardly rearwardly, with its rear part spaced above the beater drum 44. Fixed.

guide-pins 91 extend inwardly from the rack sides at the top into the interspace 83 of the director sides, so that the director is supported on said pins and upon the cross-bar 7 7 in a manner which allows it to be reciprocated in one plane only.-

rI'he numeral 76 denotes a plurality of longitudinally disposed detents arranged in staggered relation along the under faces of the longitudinal bars 75. Each detent has a relatively long sloping under face 76 of a small degree of angularity sloping upwardly forwardly to the bar 75 on which it is mounted, but at'the rear having an abrupt angular face 85.

The numeral 78 denotes a number of like resilient bars whose upper ends are bent rearwardly and fastened upon the cross-bar 77 with the treek parts 78 extending downwardly and rearwardly slopingly through the interspaces of the director bars 7 5. This positions the depending bars 7 8 above and in advance of the beater drum 44 so that the rearwardly moving load of straw or other material will contact therewith and compressively spring them upwardly to hold them in variously elevated positions of tension as indicated by the dotted lines in S. rhese bars are only usefully operable on the last remnant of the load to prevent toppling over and discharge thereof in a large bunch, because the bars then keep this remnant down long enough to allow it to be regularly distributed.

The numeral 90 denotes a cross-bar, or baille-plate which may be positioned removably across the rear part of the rack a little in. advance of the beater drum teeth 45. Its ends may be removably mounted between side-bars 3 and also between stanchions 4 and blocks 89 s cured to said side-bars. This bar 90 may be mounted across the rack as shown before the loading of the latter, and prevents packing of the loa-d tightly about he beater-drum teeth which would seriously impede the latter at starting and might occasion breakage. This bar 90 is removed when the rack has been filled so that the conveyer apron may carry the load back to the beater drum in a loosened condition due to the clearance space thus permitted.

In llig. 4 is illustrated means for elevating a part of the lower flightof each conveyer chain 18 above the traction wheel 7 thereunder, and consists of an arcuate plate or bar 1G bracketed upon the side-beam 12 under said fright so that the latter may` move slidingly thereover. The same figure shows smaller arcuate plates 17 mounted on the end of the cross-beam 2 which serve as guides for said lower flight at or near the ends of the arcuate plate 16, keeping the flight at those places down.

I have provided a wind-shield or hood 87 at the rear of the rack, which is closed at the sides and rear, and open at the front, top

Vand bottom. This wind-shield is removably supported on the rearmost stanchions 4 by means of U-shaped brackets 8S. This shield incloses the beater-drum 44 and has its open upper end immediately below the rear-part of the director 74, while its open lower end is spaced a relatively short distance above the ground. This wind-shield serves to conduct the load as delivered by the beater drum evenly upon the ground.

The director 74 may have its angularity of slope adjusted by vertically adjusting the position of the pins 91 in thevertical slot 93 of a plate 94 on each side of the rack, and then securing the pins in adjusted positions by nuts 92.

The sloping detents 76 are purposely made very low so that when the director is reciprocated they will merely scratch the surface of the load when the director is moving rearwardly, and not project far enough into he load to engage it and thrust portions thereof in bunches toward the beater drum. The action of the director is thus eii'ective in imparting a gentle rearward movement to the rear upper part of the load, directing it evenly toward the beater drum.

Iaving described my invention, what I claim as new, and desire to secure by Letters I3atent, is:

1. In a straw spreader, running-gear, a rack mounted thereon having an open delivery end and relatively high sides, carryingmeans movable along the bottom of the rack toward its delivery end, ejecting-means mounted in the lower part of the open delivery end of the rack, supporting-means positioned at the rear top parts of the rack sides, and a reciprocatory rubbing body mounted in said supporting means to reciprocate only in a single plane.

2. In a straw spreader, running-gear, a rack mounted thereon having an open delivery end and relatively high sides, carryingmeans movable along the bottom of the rack toward its delivery end, ejecting-means mounted in the lower part of the open delivery end of the rack, supporting-means positioned at the rear top parts of the rack sides, and a reciprocatory rubbing body mounted adjustably in said supporting means to reciprocate only in a single plane.

3. In a straw spreader, running-gear, a rack mounted thereon having an open delivery end and relatively high sides, carryingmeans movable along the bottom of the rack toward its delivery end, ej ecting-means mounted in the lower part of the open delivery end of the rack, supporting-means posirack mounted thereon having an open delivery end and relatively high sides, carryinmeans movable along the bottom of the rak toward its delivery end, ejectmg-means mounted in the lower part of the open delivery end ot the rack, supporting-means positioned at the rear top parts or' the rack sides, a reciprocatory rubbing body mounted in said supporting means to reciprocate only in a singlevplane, and having numerous relatively short rugations on its under rubbing face. v o 5. In a Straw spreader, running-gear, a

rack mounted thereon having an open delivery end and relatively high sides, carryingmeans movable along the bottom of therack toward its delivery end, ejecting-means mounted in the lower part of the open delivery end 'of the rack, supporting-means positionedat thefrear top parts of-the rack sides, a reeiprocatory rubbing body having openings mounted in said supporting means'to reciprocate only in a single plane, and a plurality of relatively -long elastic fingers supported at their upper endsonisaid Vsupporting-means traversing openings .in said reeiprocator and directed downwardly slopingly toward and in'advance of said ej eatingmeans.

Signed at Waterloo, Iowa, this 7th day Vof Y October, 1920. A

' VDUDLEY-GrAlRST.`

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