US1306842A - Wheat-stackek - Google Patents

Description

0. P. WENTWORTH.

WHEAT STACKER. APrucmon msn MAnza. ma.

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0. P. WENTWORTH.

WHEAT sTAcKER. APPLICATION FILI-ID MAR. 23| 1918.

Patented June 17, 1919.

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0. P. WENTWOHH.

WHEAT STACKER.

APPLICATION FILED MAH. 23| 1918.

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Srl/vento@ Patented June 17, 1919.

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OLIVER. P. WENTWORTH, OF FOIRiGrAN,Y OKLAHOMA.

WHEAT-srrioxnn.

Specification o f LettersiPatent. Patented Juin@ 1W, 1919.

Application filed March 2.3, 1918. Serial No. 224,271.

To all whom, z't may Concern:

Be it known that I, Onivnn P. WnNTwon'rri,

a citizen of the United States, residing at F organ, in the county ofI Beaver and State of Oklahoma, have invented certain new and useful Improvements in lVheat-Stackers, of which the following is a speciiicationfreference being had to the accompanying draw ings.` A f This invention relates to straw staclrers, and particularly to straw s'tackers which are used for transferring wheat from a` barge to a'stack. v

The general object` of the inventionisto provide a stacker of this character of a very simple form and which is positively con trolled at all times, and ,whichl is Vso constructed that the sling on a barge maybe lifted and discharged into a lifting and diunping'rack and in which'theracks may then be lifted and dumped onto a stack.y

One of the objects of the invention is to` provide means whereby the wheat or other grain for threshing may be lifted vertically and then discharged onto *the stack, so as to permit a vertical stack to be built.

A further object of this inventionis to? provide a construction of this character which will operate at'the side of the stack and which may be shifted parallel to the stack at will so as to `operate in connection with a stack of any desired lengthl or, in other words, to build a stack of any desired length.

Still another object isl to provide a ma chine of this character including a receiving and discharging rack, and provide means wherebythe rack may be hoisted to a predetermined height and then dumped automatically, and in this connection toi provide means whereby the dumping of the rack may be controlled so that any amount of wheat may be discharged at any desired time, the dumping rack being under positive control at any point.

4Another object is to provide means whcrefy bythe slings of a barge may be engaged and raised and carried into a position where the sling may be dumped into the rack', and`provide means whereby the sling may be returned to its position over the barge and returned to the barge.

Still another object is to provide 4improved means whereby vthe hoisting and dumping machine may be held fromloverturning un- Other objects will appear in the course 'of the following description.

My invention is illustrated in the accompanying drawings, wherein: 1 Figure. 1 is a front elevation of a hay stacker constructed in accordance with my invention; Y p

Fig'. 2 is a top' plan view of the construction shown in Fig. 1; f

Figs.v 3 and t are end elevations of the machine shown in Figs. 1 and 2 but on an enlarged scale and showing the rack in its receiving and in its dumping positions;

Fig. 5 is a fragmentary side elevation ofv the lower portion of one pair of uprights 13 showing in full lines the slide Ain a lowered position and in dotted lines the slide in' a raised position to its full extent;

Fig. 6 is a fragmentary vertical sectional view on the line 6--6 of Fig. `5 but on a smaller scale; i Fig. 7 is a fragmentary top plan view showing the connection ofv the brace 17 to the uprights;

Fig. 8 is a sectional ,view on the line 8-#8 of Fig. 7;

Fig. 9 is a diagrammatic view showing the cable for holding the machine to the ground and its engagement with the machine; and

Fig. 10 is an end viewof one of the drums and its brake. i

Referring to the drawings, it will be seen that my machine includes abase, preferably composed of longitudinal beams 10 and transverse beams 11, these beams being bolted together and being preferablysup-- n ported on wheels 12. Attached to the inner pair of transverse beams 1l and extending upward therefrom are the vertical supports and guides 13, there being two of these vertical supports and guides at each end of the machine, each. pair of these guides being spaced a relatively short distance from each other and being formed on their confronting faces with guide grooves 14. The beams 13 are separated at their upper ends by means of a sleeve 15 and passing through this sleeve and the upriglits 13is a bolt 16, to which the brace 17 is operatively connected, this brace extending downward and laterally at an inclination and being engaged with converging end braces 1S which are bolted or otherwise attached tothe longif b tudinal beams 1() of the machine. The uptransverse downwardly and forwardly Vinclined rails 20 which are bolted to the uprights and at their rear ends are bolted to uprights 21,. The forward ends of these rails 20 are connected by means of a longitudinally extending rail 22. Posts 23 are attached to one of the longitudinal beams 10 and extend up to the lower ends of the rails 20 and bassist in supporting the same.

Extending outward from each of the uprights l13 on each end of the machine are the arms 24 which at their ends are connected to upwardly extending tension or brace rods 25 which engage with coiled` springs 26 in turn engaged with the upper end of the corresponding upright 13. Preferably the arms 24 have a hinged or pivotal `connection to the. uprights 13.

tudinally extending shaftdisposed through the'beam 28 and projecting beyond the ends of the bealn. The trunnions 30 extend into the space between each pair of uprights 13.

Disposed in the guide grooves 14 of each pair of guideways or uprights 13 is `a slide 31 which may be made of a plate of metal and which is longitudinally slotted as at 32. The trunnion or shaft 30 passes into this slot 32 and has movement vertically in this s ot.

For the purpose of raising these slides 31 and raising or lowering the rack and turning the rack to and froln its dumping position, I attach to the ends of the forwardly projecting end bars 22a downwardly and rearwardly extending braces 33 which extend beyond the rearmost end bar of the rack and are attached to these rearwardly extending end bars atv 3 4. .A link 35 is pivotally engaged with the rearwardly extending termination of each brace 33 and this link extends up to and is pivotally connected with the corresponding slide 3l, as by means of the pin or bolt 36. It will thus be seen that when the rack is raised, the vertical movement of the rack will be transmitted through the links 35 to the upper ends of the slides 31 and that these slides will consequently move upward with the rack so long as the upward movement of the slides is not prevented, and when the upward movement of the slides is prevented, then the trunnions 30 move upward in the slots 32 and this upward movementacts to tip the rack in the manner illustrated in Fig. 4 to discharge the load.

of the rack, the

VFor `the purpose of adjustably limiting the upward movement of the slides, I pwvidethe guides oruprights 13 with a plurality of perforations 37 disposed at different heights and provide stop pins 38 which are adjustable through any pair of these perforations and thus are adjustable at any desired height from the ground. This stop pin is disposed inthe path of movement of the slide and when the slide reaches the stop pin the upward movement of the slide is prevented.v A continued upward movement of the rack however will cause the rack to pivot upon the bolt 35a and the rack consequently will turn to a dumping position to 'an extent determined by the amount of vertical movement given to the rack after the upward movements of the slides have been prevented by the stop pins 38.

The slides 13 are raised and lowered by means of cables 39 at each end of the: rack. Each cable is attachedat 40 to the upper end of one of the uprights at that end, then extends downward and passes through a pulley 41 attached to the end of the beam 28, then extends upward and passes over a pulley 42, and thenagain downward and passes over a pulley 43, from which it extends to a winding drum 44 mounted upon a shaft 45. This winding drum may be of any suitable construction and may he operated in any suitable manner. seen that when the winding drum is rotated in one direction, the rack with the slides 31 will be raised and that when the upward movement ofthe slides has been stopped by engagementwith the ypins 38, the pull on the cables 39 will cause a still further upward movement of the rack and that through the links 35 and braces 33the rack will be dumped as heretofore described.

For the purpose of holding` the slides 31 from rearward movement when they have struck the pins 38, I mount upon each slide a pair of latches 46, these latches extending for a portion of their length parallel to the slot 32 but being slightly vbowed inward and having their lower ends deflected to engage in a series of ratchet notches 47 formed in the confronting faces of the uprights 13. These latches 46 may be resiliently urged inward or may swing toward each other or inward by gravity. Preferably, however, they will be of resilient material and therefore be urged toward each other so that their lower ends will `be disposed `inward of the confronting faces of the uprights-13.`

1530.1?,84gij wedging members 49 vwill travel upwardin theslot 32 andwillforce thelowerdends" of thel latches 46 `apart .so that the lower. extremities ofV these latches will .engage in the` ratchet `notches 47 inthe manner; illus-,1. trated in Fig. 5, holding the slides 3.1 raised. while the rack isbeing dumped. Upon thev unwinding of they hoisting, cables fromthe l winding ldrum 44.,` the racl; with` itsl trun-U nions will lower and the wedging members,l

49 will be also lowered until they release the, latching members 46 and; cause them toV swing inward toward each other and .out

of engagementwithA the .notches47. s0 that when the trunnions 30 reach ,thelowerends mounted upon the uprights *13. so as toswing slightly in a vertical'plane .and each arm carries at its extremity a pulleyl. Passing gover this pulley .i is a cableV 53 which carries at its extremity a` pulley 54. The

cable 53 passes over a pulley. mounted upon the correspondingdiagonal braces, .and the extremity of the cable is attached to a weight l 56. f The cable 53 carries Yat. itsiextremity.

the pulley 54 overl which `the cable52 passes,`

this cable carryingthe `hool-57 which is adapted to engage oneend of afsling. The cable `52vv passes back .tothe. uprights 2l` through a suitable pulley and downward: and thence through any suitable `leading pulleys to the drum 50.

With this construction `it.isi plain that I when the hooks 57 `are engaged with the ends of the hay sling,l and thecables' 52 are wound up upon..the drum 50, the

blocksA 54, will be drawn inward carrying' with them the hooks 57 so as to carry the slin-g to a position, above'the rack and` at the same time that the weights 56 will When the sling .has-beeni discharged andthe cables 52 are slackenedbe elevated.

by permitting the drum -to unwind,..the

sling to a proper position over the `barge so thatlthe under sling may be connected to` thehools and theoperation repeated.

For the purpose of preventing an un- `wind'n'ig movement of the.drum"`44 under theaction o-f the weight of `the rack; after thewdrum has been disengaged from; the

shaft 45',` I provide aclutch in the-form of a band brake 58'which encirclesthe drum 50 at one point, one. eiidjoffthe bandfforming the brake being connected topa pin 5St`whilethe other; .end of thev band is,` connected ,to

alever 59 `pivoted;intermediate its ends..`

The coiled contractile spring vtSOacts `to draw the .tweends of 'the band together and clamp the band in frictional contact with the drum unless kthe lever 59 is` operated.L The drum 44may' beo-perated in any suitable manner,`

but;,if,the shaft l45V is a power operated shaft, the. drum `44 is loosevupon this shaft: but is connectible tothe.V shaftbyl means lof ordinary clutch meclianisniwliich is released when the rack is dumped. 1 l prefer,`

however, torotate .the drum .44 by means of a` cablevl wrapped aroundV a portionof the drum, which `cable maybe connected to a draft animall so thatas thedraft animal moves: away from the supporting frame, the

drum will be turned toy wind up the cable thereon.

-The drum 50 may also` be operated by means of powerappliedto the shaft45., but

I have illustrated this drum .alsoas being operated bymeans of a cable 62 wound upon a vportion of` the drum extending over a pulley 63 and connected-,to a draft element.

L donot wishto be'limfite'dThowever, toany specific means for operating these winding drums. The co1ledspr1ngs26 permit, a

yielding movement of i the guide rods `25I which permits the arms 24v to adjust themselves to the strain on the loable when a sling is being lifted and hauled into position to bedumped. n

It is, of course, desirableto make the machine. of; `as light weight as possible consistent with steadiness and inorder to prof vide for anchoring the base, ofthe machine i to the ground and yet permitting the ma-V chine tol be shifted` longitudinally along a staclnl provide a` cable 64` which extendsl longitudinally over the baseof the machine and is 4anchored `at ,its ends byanchoring pegs (S5, this cable (S4fpassingl over pulleys G6- mounted 'on the frame of the machine and the cable being just suliiciently tight so as to permit the machine to be shifted longL tudinally and yet hold' thebase ofthe machine firmly upon the ground .and preventing the base from tipping up when therack is dumping. i i

This stackeris designed to be constructed very largely of wood and preferably the tendingibeam 28 which `is preferably about 16 .feet long, the lbody of the rack. beingV formed of 1by 4"` slats setalternatelyto.

each other. thus' making the rack` relatively light. The machineis approximately 8 feet wide over lall andthe-hoisting uprights will ordinarily be about 16 feet high. y

Vhfile I have illustrated certain details of v construction which I believe tobe particu rack .is formed of the longitudinally exi weights 5G. will act to return the hooks and"l 120V that the elements of the rack may be are ranged in different ways without departing and rotatably mounted rack, means for ap;k

plying power to the rack to hoist it to a predetermined elevation, a stop limiting the bodily upward movement of the rack, and means then causing the rotation of the rack to discharge its contents.

2. A stacker comprising a base, vertiL cally disposed, longitudinally spaced guides mounted on the base, slides carried by said guides, a rack having divergent sides, and trunnions rotatably mounted in the slides, the slides being provided with vertical slots into which said trunnions extend, power oplcrated means for simultaneously raising the rack and the slides, adjustable means for limiting the upward movement of the slides beyond a predetermined point, and means for causing the further upward movement of the trunnions within said slots to over*- balance the rack and tip it to a discharging positiond 3. A stacker comprising a base, vertically disposed longitudinally spaced guides mounted-on the base, slides carried by said guides, a rackhaving divergent sides, `and trunnions rotatably mounted in the slides, the slides being provided with vertical slots into which said trunnions extend, power operated means for simultaneously raising the rack and the slides, adjustable means for limiting the upward movement of the slides beyond a predetermined point, means for causing the further upward movement of the trunnions within said slots to overhalance the rack and tip it to a discharging position, and means actuated 'by the continued upward movement of the trunnions for locking the slides to the guides to prevent downward movement of the slides, said means acting upon a downward movement of the trunnions in the slots to release said locking means. A

4. A stacker including a vertically movable rack having divergent sides, a vertically movable' fulcrum for the rack and opera tively engaging the rack to one side of the longitudinal axis thereof, means for simultaneously raising the rack and the fulcrum, land means acting to stopthe upward move` ment ofthe fulcrum at a predetermined point but permitting the further upward movement of the rack to thereby cause the rack to tilt upon its fulcrum and discharge its contents.

5'.- A stacker including `a base, vertically disposed longitudinally spaced guides on the. base, a rack having divergent sides disposed between the guides, vertically slotted slides mounted 'on the guides, the rack having trunnions' extending inte the slots ofthe slidesfand rota-table therein, said trunnions beingdisposed in the axial center of the rack, Vlinks pivotally connected to the upper ends of the slides, the lower ends of the links being pivotally connected to the rack at a point rearward of the axial center of the rack, means for limiting the upwardinovement of the slides,l and mea-ns for lifting the rack with the slides until the movement of the slides is stopped and still further lifting i the rack to cause the rack to tilt upon the lower ends of the links to thereby discharge the contents thereof.

6, A stacker including" a base, vertically,

dispbsed longitudinally spaced guides on the base, a rack having divergent Ysides disposed between the guides, vertically slotted slides mounted on the guides the rack having trunnions extending into the slots of the slides and rotatable therein, said trunnions being disposed in the axial center of the rack,- links pivotally connected to the upper ends of the slides, the lower ends o f the links being pivotally connected to the `rack at a point rearward of the axial center of the rack, means for limiting' the upward movement of the slides, means for lifting the rack with the slides until the movement of the slides is stopped and still further lifting the rack to cause the rack to tilt upon the lower ends of the links to thereby discharge the contents thereof, latches carried by the slides and engaging with the guides, and means car-` ried by the trunnions of the rack for shifting said latches into operative position when the rack moves. upward independently of the slides and releasing said latches when the rack moves downward independently of the slides.

7: A stacker including a base, a pair of vertically disposed guides mounted on the base and longitudinally spaced from each other, vertically slotted slides mounted in said guides, a rack having divergent sides disposed between the pairs of guides and having trunnions at its axial center having sliding engagement with said slots, links pivotally connected to the upper ends of the slides and pivotally connected to the rack rearward of the axial center thereof, cables extending downward from the upper ends of the guides operatively connected to the axial center of the rack and to a vsource of power whereby the cables may be retracted to raise the slides and racks, and means for limiting the upward movement of the slides in said guides.V

8. A stacker including a base, a pair-of vertically disposed guides mounted on the base and longitudinally spaced from each other, vertically slotted slides mounted in having trunnions at its axial center having sliding engagement with said slots, links pivotally connected to the upper ends of the slides and pivotally connected to the rack rearward of the axial center thereof, cables extending downward from the upper ends of the guides operatively connected to the axial center of the rack and to a source oi power whereby the cables may be retracted to raise the slides and racks, and means for limiting the upward movementl of the slides in said guides, and comprising pins adjustable at different elevations through said guides and in the path of movement of the slides.

9. A stacker including a base, vertically disposed pairs of longitudinally spaced guides mounted upon the base, a rack having divergent sides disposed between the pairs of guides, longitudinally slotted slides operatively engaging the guides, the rack having trunnions at its axial center passing through the slots of the slides, links pivotally connected to the upper ends of the slides and extending downward and rearward and pivotally connected to the rack rearward of its axial center, adjustable means for limiting the upward movement of the slides, means connected to the axial center of the rack for raising and lowering it, and means for preventing the downward movement of the slides after they have engaged said adjust*- able means comprising a pair of latches disposed on the face of each slide, the lower ends of the latches being downwardly divergent, the guides having notches with which the latches engage and wedges carried by the trunnions of the racks and urging said latches apart and into said notches when the trunnions move upwardly independently of the slide.

10. A stacker including a vertically mov able and rotatably mounted rack having` divergent sides, means for applying power to the rack to hoist it to a predetermined elevation7 a stop impeding the upward movement of one side of the rack beyond a predetermined elevation, said stop permitting the middle of the rack to continue its upward movement under the 'action of the power applying means, to thereby rotate the rack to a dumping position.

In testimony whereof I hereunto aHix my signature in the presence of two witnesses.

OLIVER P. WENT'WORTH.

Witnesses:

GEORGE W. CosBY, F. J. CATELDIRK.

opies of this patent may be obtained for ve cents each, by addressing the Commissioner o f Batentm? Washington, D. Q

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