US924534A - Hay-stacker. - Google Patents

Description

J'. H. Goma. HAY HACKER..

ABPLXOATION ILBD APR. 8, '1908. 4

@mentaal J 11u68, 1909.'

4 SHEETS-SHEET 1.

J. H. COPE.

HAY STAGKER. APPLIUATION FILED APR. e, 1908.

Patented June 8, 1909y 4 SHEETS-SHEET 2 HAY STACKER.

APPLICATION FILED APB.. 6`, 1908.

1Patented June 8, 1909.

4 SHEETB-SHBBT 3.

Lr. H. COPE.

HAY STAGKER.

P'PLIATION FILED APR. 6, 1908. 924,534. Patented June 8, 1909.

4 SHEETS-SHBET 4,

. nected parts.

un rrnn sfrirrns rirrnnfr oirirron JOSEPH, H. COPE, OF WNDSOR, COLORADO.

HAY-STACKEB.

Specification of Letters Patent.

Patented June 8, 1909.

Application filed April 6, 1908. Serial No. 425,391.

i and exact description ol' 'the invention, such as will enable others skilled in the art to which it appertains to make and use the saine, reference being had to the aocompanyingT drawings, and to the letters and ligures oll reference marked thereon, which l'orin a part of this specification.

Mv invention relates to improvements in hay stackers, my object being to provide an improved extension arm construction whoreby as the stacker head is lifted, it may be simultaneously extended or elevated or not as may be desired.

ln my Patent No. 701;'257, dated May 27th, 1902, the general `construetion is disclosed and covered, whereby the stecker head is provided with hars slidnbly eonnected with the lifting ironie, the seid hars ol` the head being connected with links, the opposite extremities olI the links being pivotally connected tothe stationary frame at n4 point above the. pivotcd point ol the lifting' l'ranie. ln my improved construction the so called links oi extension arms Iare arranged to slide upon the bars l' the stacker hoadil it is not desired to extend o1' elevate, the head during the lilting,operation, which is theI case when thc stack is low. llowever,

comici-.ted with the bars oli the stiic'inir head are inserted in holes formed iii the, said hars, each ol the hitter being provided with uv se ries ol holes lor this purpose. ln this event the -pins l'orm stops l'or the oxtensii'ui arms :it any desired point, thus controlling the vdegree ol' lil't or rise given the stocker head duringl the upward movement ol the tilting frame. In my improved construction l also employ an A-shnped lever armor lever-like device pivotally connected at one. extremity with the si :itioniiry shnped. ever arm at a suitable anglo when ,the ,stacker head is nt its lowest limit of movement. Ai' the outer oxtreiiiity ol' the as they stack rises and it becomes necessii-rytohlt the hay or other iiiatei'ial higher. pins detnohnbly i frame, while its opposite extremity is connectml with the hi'ting l'rnine l said lever arm is located a pulley around Y I which the lifting cable passes after passing around a pulley at the rear extremity oi' the. stationary frame. As the stacker head is elevated with the lifting frame with which it, is slidably connected, the said lever arm 'swings rearwardly as the cable shortens be- VJtween the said forward and rearward points of engagement. The movement, of the lever arm carries-the lifting l'rame with it, whereby the latter is elevated for the purpose of rais- .,ing the load carried by the stacker head.

' Having briefly outlined my improved construction, I will proceed to describe the same in detail reference Y accompanying drawing in which is illustrated an embodiment thereof. l In this drawing, Figure 1 is a perspective l view of a hay stacker equipped with my iml elevated position. Fig. 2 is a. side elevation' showingl the stacker head in the lowermost position. Fig. 8 sume. Fig. 4 is a side elevation showing the stacker head just before it reaches its up ward and rearward limitol movement. Fig. 5 is a fragmentary elevation showing the j outer extremity oll one ol' the extension'arms, in operative relation with the lifting frame 'i and the slidablc armsol the stacker head, 'i the parts being shown on a larger scale. Fig. 1 (Sis a section taken on the line 6-6 Fig. 5. The saine reference characters indicate the sninev parts in all the views.

Lei the numeral 5 designate the stationary l'i'zime which ns shown in the drawing is oom-- posed ol parallel separated bottoni bars 6 haring wheels 7 et their i'orwnrd extremities to lzieilitnte the Imovement ol' the stacker from place to place. 'lhis frame is also pro-- f vided in the rear with costei' shoes S which lshoes nre adapted to swingl to harmonize with the direi-.tion oi' movement.' ol' the stacker when the same is being' hauled from 1 phiee to place. 'l`he wheels 7 also support the forward port ol' the stationary 'frame sull'icienily above the ground, to allow the tee-th ol' the sweep rake, alter passing between the teeth of the stacker head, to pass below the loi'wi'trd extremity olA the station ni'y vl'inine. ln the absence ol' the wheels 7 or other suitable supporting ineens, the i teeth oll the rake are liable to strike the orward extremity ol' the stationary freine, rei sulting in breaking the teeth whjlzefloediig being made to the provein'ents showing the stacker heed in they is a top plan view oi thev are pivoted in bearings 8', whereby the said the stacker head. The stationary frame is also provided with upwardly-projecting rearwardly located bars t) together with braces 1U, one being located onieach side; and a centrally located inclined bar 12 whose for ward extremity is rigidly secured to a cross bar 13 of the frame. This bar 12 extends rearwardly and u wardly irom'the bar 13, its rear extremity )eing supported by an upright bar 15. At the rear extremity of the bar 12 is mounted a pulley .16 protected by a housing 17 pivoted to the bar 12 at 13, so that as the stacker head rises, this housing may adjust itself to harmonize with the position oi' the cable .19. r1`he housing 17 protects the pulley 16 from the hay or other material to be stacked,4 whereby the said material is prevented from catching on the pulley and interfering with its proper operation in connection with 'the cable. Slightly forward of the pulley 16, the pulley 20 is also mounted on the bar 12.

Upon the rear extremity ofthe stationary frame is mounted a rectangular'frame 21 composed of upwardly projecting bars 22 and a transverse bar 23 attached to their upper extremities. The .lower extremities of the bars 22 are pivotally connected. with the frame work as shown at 24. This frame 21 is yieldingly connected with the stationary frame by coil springs 25 which normally hold it at its forward position (sec Figs'. 1 and 4) whereby as the stacker head is raised, the extension arms 26 come in contact with the cross bar 23 and form a stop which while yielding to prevent unnecessary concussion crier, at the lsame time checks the rearward movement Vof the stacker head with sulicient suddenness to give the material upon the head a rearward impetus due to the acquired momen-tum, whereby the said material is readily discharged from the head and thrown upon the stack. The recoil of the springs connected with theJouiier frame, also gives the stacker head and its connections a forward impetus after the discharge oi the material 'from the said head, whereby the latter is thrown forward of a vertical position thus facilitating 4its downward movement. Ity will be noted that the transverse bar 23 projects beyond the stationary bottom side bars 6, as shown at A, thus bringing these extensions within the path'of the extension arms 26, the bars 27 of the stackerl head, and the bars 28 of the lifting frame. 'l`hcse bars 27 of the stacker head are slid ably connected with the bars 28 of the lifting` frame, by means of U-shapcd keepers 29 secured to the bars 27 as shown at 30 and passing around the bars 23 as shown at 31. The arts 31 are arranged to slide freely on the ars 28 for a purpose hereinafter more fully explained. i

',lhc extension arms 26, are pivotally con-- nected at 32 with brackets 33 mounted on the arm and engage a har 27 of the stacker head onopposite sides. Each bar 27 is provided with a series of openings 35 adapted to receive a bolt or lpin 36 having sleeves 37 :rp-

licd to its opposite extremities beyond the. ar 27. 'lhese sleeves' are held in place by Washers 38 interposed between 1he head ol' the bolt at one extremity and a fastening nut 39 at the opposite extremity. 'lhese sleeves 37 form stops or bearings for the projecting extremities` 4() of' the irons 34, \\'hereb when the bolt is inserted in a proper opening, the stacker head ymay be. elevated to any desired height within reasonable limits during the 'upward movement of the lifting frame. Or if the pin is left out altogether, the extensions of the irons 34, simply slidey upon the bars 27 without changing their relative po sition on the bars 28 of the lifting frame. which are pivoted on the stationary frame. as shownat 41.

rlhe advantage of the employment of the extension arms 26, while raising the load op the stacker head is illustrated in Fig. 2. By referring to this ligure, if it be assumed that the stop bolts 36 are inI the position indicated in Figs. 2 and 3, it will he understood that during the upward movement of the lifting frame the extremities 4() of the irons 34 will travel in the dotted arc E, thus causing the bolt 36 of each bar27, to travel in rthe same or approximately the same arc. when the lifting frame is at its upward limit of movement, the pin 36 will occupy a position approximately indicated by the point 42, whereas, if the extension arms were not employed, the pin 36 remaining relatively stationary with the arms ofthe lifting frame, would travel in an arc 43 in which event when the lifting frame is at its upward limit of movement, the pin would occupy a position at a point 44 zmproximately, thus indieating that by reason of the extension arms, the stacker head has been raised. during its upward and rearward travel, a distance equal to the vertical distance between the pomts 44 and 42. By puttil'ig` the pin or bolt 36 in one of the openings 35 farther removed from the ivotal oint 41 of the lifting frame, the stac er hea will be moved upwardly a less distance; while leaving the stop pin or bolt out altogether, the stacker head will remain relatively stationary on the lifting frame during its upward and rearward travel.

Attention. is called to the fact that the are 43 is obtained by using a radius equal to the distance between the pivoted point 41 and the in 36 referring to .l1 ig. 2; `while thc are 41 is oiitaincd by using a radius equal to the distance from the iv'oted oint 32 to the pin 36 referring to t 1e same gurc.

Hence llll 'lhe A-shaped lever-hlm de vice heretofore referred to, which is designated 45, is pivotally connected with the stationary frame as -shown at 46. This device is composed of are. connected with the A-shaped device atI thc'apex or outer extremity of the latter.

When the apparatus is in use, the lifting cable 19 has )ower applied to on'e extremity to which a orso may be attached. .T his cable passes under a pulley 51 attached to. the rear part of the machine, and thence upwardly around thepulley 16 (see Fig. 2l and thence forwardlyaround the pulley 48, and thence rearwardly passin around the pulley 20, andthence forward y where it is attachedto the outer extremity of the A- shaped device 45. Now as the power is ap- .plied to the free extremity of this cable, assuming that the structure is in the yosition shown 'in Fig. Z whereby the stacker edad 52 is at its lowest limit of movement, a pull on the cable will gradually shorten its lengths, between the two ulleys 16 and 20 in the rear, and the puley 48 in front. During this shortening operation, the A-shaped device will `move rearwardly, carrying the lifting frame and the stacker headthercwith by virtue of the construction heretofore described. During this operation, assuming that the irons 34 of the extensionarms 26, are in engagement with thc pins 36l at the beginning of the operation, the arms 27 together with the stacker head, will be moved on the lifting frame approximately the distance between' the pointsv 44 and 42 (see Fig. 2) while the lifting;r frame is traveling upwardly and rearwardly to its limit of movement: while if the pins 36 are in other openings 35 of the bars 27 farther removed from the axis of the lifting frame, the relative movement of the bars 27 upon the corresponding bars of the lifting frame, will be lcsscncd to a corresponding degree, during thc same o pc ration.

Nearer the pivotal point Lil of the lifting frame than any of the openings 35, the arms 27 are provided with stops B which lie in the path of the irons 34 during the downward movement of the lifting frame, whereby the arms 27 are caused to return to their normal position by the time the lifting frame and its 'sliding attacluncnts reach their lo\\\cst limit of movement. l

.ment of the pivoted frame,

flaring thus described my invention, what l claim is:

1. ln a stacker` the combination with a relatively stationary frame, of a lifting frame hingcd orpivotcd thereon, a head havingv bars slidably connected w ith the liftin frame, andl arms or links slidably connecter n ith the rigid head bars at one extremity and pivotally connectcd with the stationary frame at thc opposite cxtreinityat a point above the pivotal point of the lifting.: frame, and devices connected with tht` head bars and adapted to occupy positions in the path of the sliding cxtreifi'tics of said links or arms, substantially as described.

2. ln a stacker, the combination with a relatively stationary frame, of a lifting frame pivoted thereon, a hcad having` bars slidably connected with the pivoted frame, and links or arms having irons slidably connected with the rigid hcad bars at one extremity and pivot-ally connected with thc stationary frame at their opposite cxtrcn'iit-ics, at points above the pivot-ed point of the lifting;r frame, the said head bars being provided with stois lying in the path of the said irons` of the lin s or arms, substantially described.

3. In a stacker, the combination with a relatively stationary frame, of a liftine frame pivoted thereon, a head having bars `silidably connected with the pivoted frame, the said bars being provided with a number of openings, stops detachably connected with the bars whereby they may be inserted in any of the said openings, and links or arms sl-idably connected with the. rigid head bars at one extremity and pivotally connected witlnthe stationary frame at the opposite extremity',V whereby the sliding extremities ofthe links are ada )ted to engage the stops of the head bars, su )stantially as described.

4. ln a stacker, the combination with a stationary frame, of a lifting frame iivotcd thereon, a head haring bars slidably connected with the pivoted frame and provided with a series of openings, )ins ada )ted to be inserted in the openings of the ,said bars and arranged to protrude beyond the said bars, and links or arms pivotally vconnected with the stationary frame at one extremity at a Y point above the frame, the opposite extremitiesl of the said into the path of the stops of the read bars during the travel of the said arms during the lifting operation, the head bars also having other stops located in the opposite direction from the 'first named stops, whereby the devices of the said arms wlll engage he other stops during the return or downward movearms heilig i"'o'viled\vith devices projecting head bars to return to their position.

normal 5. Ina Stacker, .the combination with a pivotcd point of the lifting and canse the .10 y lifting frenic, the lever-like device having its outer extremity 1n a forward osition when ment, and a hoisting cable having one ex triemi'ty madefast'to the outer extremity of .'the'iever-like device, and means located at itt one extremity and pivotaily connected .-ncted with the stationary frame at one exstationery frame, of a lifting freine ivotally connected therewith, e head having ars slidablyvaconnected with the liftin traine, and linksfslidebly connected with t e head bars 'tj/ith thestationary frame at their oiposite extremitles, a lever-like device pivota y contremity, a connection between the opposite extremity of the 'lever-like device and the the lifting frame is at its lowest imit of moveand e buffer' frame projecting upwardly from i `the rear extremity of the statlonary Aframe lp and having its lower extremity pivotal ly conl nccted with the stationaigY frame.

'7. lira stacker, the combination with :i i

cette@ relatively stationary traine, of a lifting frame pivoted thereon, e head having bars slidahly connected with the pivoted frame, and links or arms slidably connected 4 with the head bars at `one extremity and'pivotelly connected with the stacker nt their opposite cxtremities,

8. In f1` stacker, the combination with a relatively stationary frame, of a suitable support, a heed having' bars slidablly connected with said support, and links s idably connected with the head bars at 011e extremity and'pivotally connected with the stationary frame at their opposite extremities.

9. In a stacker7 the combination with :t relatively stat .ionary frame, of a lifting freine, and a yieldingly held butler freine including bars projecting upwardly fromthe rear end .of the stationary frame, and a cross bar connecting the upper ends of the first named bars, and adapted to engage the lifting frame as the latter approaches the 'limit of its upward stroke.

In testimony whereof I aHiX my signature in presence of two witnesses.

, JOSEPH l1. COPE. Witnesses DNA NELSON,

ALoDrA HU'ronIsoN.

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