US992806A - Straw stacker and elevator. - Google Patents

Description

A. ROSENTHAL.` STBAW STAGKEB AND BLBvAToB.

APPLIOTION FILED JUNE 12, 1909.

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A. ROSENTHAL. Smm suona AND BLEvATon.

APPLIUATI-OI HLED .TUNE 12, 1909.

Patented May 23, 1911.

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/NVEN'-R vom A. ROSENTHAL. STRAW STICKER AND BLEvATon.

APPLICATION IILBD TUHH 12, 1909.

Patented May 23, 1911.

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A. RQSENTHAL.

STBAW STAGKER AND ELEVATOR.

APPLICATION PILB) JUIB l2, 1909.

\Patented May 23, 1911.

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A. 'ROSBNTHALI STRAW STAGKER ANDv ELEVATOR.'

APPLICATION `FILED .TUNE 12, 1909.

Patented May 23, 1911.

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'UNITED STATES PATENT oEEIoE. i

AUGUST RosENTHAI.,oF WEST ALLIs, wIscoNsIN.

sTnAW sTAcKER AND ELEvA'ron. i

This invention relates to improvements in straw stackers and elevators capable of being used in connection with corn husking and shredding machines, threshing' machines, ensilage cutters, etc.

The principal object of this invention is to provide a stacker, for elevating and de livering straw and fodder by reciprocating I means, which may be conveniently folded by means of a cable connection in a simple manner.

A further object is to provide a stacker` prevent-ing the stacker from being foldedy e-Xcept when the joints of the reciprocating means are properly positioned with relation to the hinge joint of the stacker tube.

A further object is to provide a stacker in which the vibration and jolting incident to the reciprocating means passing over' the dead center is minimized.

A- further object is to provide a stacker in which all interior parts are leasily ac`` cessible for cleaning purposes and for mak- `4` same parts in all of-theviews: Figure 1 is a side view of a portion of a threshing machine with a portion of the improved stacker and elevator connected thereto; Fig. 2 is a side view of the outer end of the stacker tube; ,Fig 3 is a plan view ofk the parts shown in Fig. -1,- parts broken away and other parts being shown in section to show interior construction, the4 stacker being.

swung at an angle; Fig. 4 is a vertical longitudinal sectional View of the parts shown in Fig. 1,y a portion of the tube also being;

shown by dotted lines in a vertical position;

j Specification of Letters Patent. V.Application fned June 12, 1909. serial No. 501,757.

Fig. 5 is a side elevation of a portion of a threshing machine with the stacker connected thereto, the stacker being shown in folded position, parts being broken away and other parts in section; Fig. 6 is a sectional view taken on line 6 6 of Fig. 1;

Fig. 7 is a sectional view on an enlarged scale, taken on line 7--7 of Fig. 1; Fig. 8 is a detailed sectional view of the stacker tube hinge joint and the reciprocating means in folded position; Fig. 9 is a detail, partly in section, of the means for preventing the `stacker being folded except when jointed parts are in alinement; Fig. 10 is a transverse sectional view taken on line 10-10 of Fig. 2; and, Fig. 11 is a view of a portion of the opposite side of the machine to thatshown in Fig. 1. Y

Referring to the drawings, the numeral 12 indicates the discharge end of a'threshing machine, and 13 Y thel reciprocating screens which discharge the material therefrom. A stacker supporting frame 14 `projects rearwardly from said threshing machine and is adapted to pivotallyl supporta rectangular stacker frame 15 by means of vertical pivot bolts 16 the upper one of which Patented May 23, 1911i.

is connected to a looped brace 17 depending from the upperportion of the stacker supporting frame. Thelowerl pivot bolt passes through the lower portions of the rectangular stackerframe and the supporting frame.

yAstacker 18 pivotally supported on horizontal bearings 19 provided on the rectangular frame is adapted to swing vertically on said bearings in adjusting the outer end of the stacker to different heights and to `swing laterally on the vertical bolts fin adjusting the stacker horizontally thus providing, substantially, a universal joint connection between the stacker and the endl of the'machinel to which it is connected. The lower portion 20 of the stacker is curved on a radius the center of which is coincident with theV v iiexible side extensions 25y which overlap The,

portions of the inclosing casing 24 and are in turn overlapped by stationary plates 26 fastened to the sides of the threshing machines thus permitting the side extensions to slide freely between the two plates and preserve a tight closure and as the stacker is turned laterally the side extensions will bend or yield and permit said movement. The top portion of the casing 24 consists of a sheet metal plate 27 connected to the upper portion of the threshing machine and the front edges thereof extend forward in lines converging toward each other to a point immediately in the rear of the upper pivotal bolt 167 the plate resting on and supported by brace rods 28 which extend rearwardly in divcrging lines from the upper pivot bolt 16 to the threshing machine. The upper member of the rectangular frame has extending rearwardly therefrom sheet metal segmental plates 29 which are adapted to slide and rest on top of the plate 27 and serve to form a tight closure in all positions of adjustment'of the stacker. One of the side plates of the inclosing casing is provided with a hand hole 30 having a sliding cover 31 for convenience in cleaning the interior of the casing. The corners of the upper front portion of `the rectangular frame are covered with angular sheet metal plates 32 the lower edges of which extend downwardly at an angle from the medial portion of the upper member of Said frame to the side members thereof a slight distance above the horizontal bearings 19. The lower edges of these angular sheet metal plates 32 have hinged thereto metal doors or covers 38 which are adapted to rest on top of the angular portions 34 of the stacker. The angular portion extends from a pivot near the rectangular frame to a point adjacent to the joint B4 of the stacker tube and is provided to accommodate the reciprocating means within the'stacker tube.

The stacker tube consists of an inner section 35 and an outer discharge section 36 joined together by a pivot bolt 37 which passes through ears 38 with which each tube section is provided. These ears are positioned a slight distance above the upper portion of the tube to provide clearance to permit the tube being folded. The lower tube section merges into an enlarged lower open end portion 39 of which the curved portion 20 before mentioned forms a part. This enlarged open end of the tube is so shaped and positioned with reference to its various positions of adjustment and the discharge portion of the threshing machine as to be always in proper position to receive the material discharged therefrom.

A double cranked shaft 40 extending transversely across the lower enlarged end of the stacker and mounted in the horizontal bearings 19 has connected thereto oscillating bars 41 provided with engaging fingers 42 which are adapted to engage and elevate the material discharged into the open end of the stacker. The upper ends 43 of these bars extend upwardly through slots 36 in the tube and are provided with pivoted blocks 45 which slide and are supported in guideways 43 connected to the upper portions of the tube sections. The upwardly curved ends 44 of the lower portions of reciprocating bars 45 are pivotally connected to the upper ends of the oscillating bars 41 and are reciprocated thereby. The reciprocating bars are provided with engaging fingers 46 which are adapted to elevate and discharge the material moved into their path of movement by the lingers connected to the oscillating bars. The upwardly curved ends of the reciprocating bars are so shaped that when their pivotal connections are in axial alinement with each other immediately below the hinge of the tube sections the upper tube section may be folded over without disconnecting any of the oscillating or reciprocating parts. The upper ends of the reciprocating bars are supported and guided by means of bolts 47 connected to said bars and passing through slotted openings 4S provided in the upper tube section, t-he nuts of the bolts serving to support the bars. The cranked shaft is adapted to be rotated by means of a pulley 49 and abelt 50 extending to means to be later described.

The tube sections are held in locked engagement with each other by means of a latch 51 pivoted to the inner tube section and adapted to engage the shoulder 52 of the outer tube section when the ends are swung together and lock said sections together. In order to prevent the tube sections from being folded when the material moving members are not in the proper position with both joints thereof in axial alinement, the latch 51 has connected thereto a rod 52 which extends rearwardly therefrom and is connected to one arm of a bell-crank lever 58 pivotally mounted on a bracket 54 fastened to the lower tube section adjacent to the cranked shaft 40. The other arm of this bell crank lever is adapted to enter an aperture 55 provided in the wheel 56 when the pivots of the oints of the oscillating members and the reciprocating members are in axial alinement with relation to each other and thus permit the disengagement of the latch with the outer tube section. A holding pin 53 is adapted to hold the lever in adjusted position.

The stacker is swung on its pivotal connections with the threshing machine frame to fold, elevate or lower the discharge end of the stacker by means of a small windlass 57 mounted in bearings 58 on top of the threshing machine and a rope or cable connection 59 between said windlass and the section. These cables serve as a stop to limit stacker tube. Both ends of the cable connection arefastened to the'windlass and the looped portion passes over guide pulleys connected to the upstanding supporting frame 61 positioned on top of the-stacker supporting frame. The looped end of this cable engages a shackle pulley 62 connected to a looped tilting ro-pe or cable 68 which eX- tends on both sides of the stacker tube and is fastened to the band 63 surrounding the outer tube section. The shackle pulley 62 provides for both ends of the cable carrying an equal strain in all.positions of adliustment ofthe stacker. The portions of the loop of the cable 68 are spaced apart by means of a spacing barY 64 which also serves to assist in raising the outer stacker tube when folded and resting thereon. Another spacing bar 65 is also connected to both portions of the cable 63 near the outer ends thereof and this bar" serves to assist in both raising and lowering the outer tube section. The spacing bars are each formed of two pieces of wood bolted together to form rope or cable clamps whereby they are securely clamped to the portions of the cable 63.

In order to lift the outer tube section when in a folded position pulleys 66 positioned above the joint of the tube sections and in the path of movement of both portions of the cable 63 are supported by brace rods 67 extending upwardly from the. outer end of lower stacker tube section 35.

The looped portion of a looped stop cable 68, the ends of which are connected to the medial bearings of the vbearings 58, passes over a bolt 69 forming part of the upstanding supporting frame 61.`` The klooped end of this cable engages a4 shackle 70 connected to the looped end of a cable 71 which eX- tends outwardly and the ends thereof are connected to the outer end of the inner tube the downward movement of the stacker tube and the shackle connection between the two cables equalizes the strainjcnboth portions of each cable. Y

In order to fold the stacker tube it is necessary to lock the lower tube section against movement vertically and to accomplish this result a locking rod 7 2 is'provided the lower end of which is pivoted to the supporting frame by means of eye bolts 73 kshafts of the threshing machine.

ing which period the oscillatingand reciproeating bars have practically no longitudinal movement there is a tendency of the parts the cranked portions of the cranked shaft that each half revolution of the shaftV will causethe cam to lift the spring pressed rod against the tension of the spring when the cranked portions ofthe shaft are passing over the dead center and be retarded thereby and when over the dead center the spring will tend to return the power required to compress it by riding down theinclines of the cams thus eliminating the pounding of the parts without loss of power.

VA short-shaft 78 mounted on the rectangular frame is provided with a pulley 79 on its outer end which is adapted to engage and drive the belt 50 connected to the crank shaft pulley. The inner end of thisshort shaft is provided with a universal coupling 80. Another short shaft 8l mounted on the stacker supporting frame is connected to the universal coupling at one end kand at the other end is provided with a pulley 82 adapted to be connected to one of the driven The pivotal connections of the universal coupling connecting the inner ends of the short shafts together are positioned in vertical alinement with the pivotal bolts of the rectangular frame thus providing for the rotation of the short shafts, even. though at an angle with relation to each other, and permitting the operation of the stacker in different positions of adjustment. A belt tightener 88 mounted on the rectangular 'frame and bearing against the belt 50 is sprocket 'wheel 86 mounted on a short shaft J Y 87. rlhe sprocket shaft 87 is provided with a cranked arm 88 to turn the same anda ratchet wheel'and pawl 89 to maintaingpositions of adjustment.

The fingers of the oscillating and reciprocating bars are formed ofy inverted U-shaped v vided on said bars so that in traveling forward the fingers Awill be' positioned substantially at right angles to the bars and move the material and when the bars are traveling rearwardly the lingers will swing upwardly and pass over the material.

The operation of the stacker is as follows: Material is fed into the open lower end thereof from the threshing or other machine to which it is connected. The material will be engaged by the fingers of the oscillating bars and moved into the path of movement of the reciprocating bars and further moved by the fingers thereof and discharged from the outer end of the stacker. The swinging fingers of both the oscillating and reciprocating bars will engage and move up the material during the forward stroke and during the return stroke the fingers will swing up against the sides of the bars and pass' freely through the advancing material, and as the pairs of bars are connected to the double crank and work in opposite directions the material will be continuously discharged from the outer end of the stacker tube.

The stacker may be swung horizontally by means of the pivotal connection of the rectangular stacker frame to the supporting frame, and may be raised or lowered by means of the pivotal connection of the stacker tube to the rectangular frame, the doors or covers hinged to the angular sheet metal plates and the curved concentric eX- tension portion which have a sliding engagement with the enlarged portion of the lower stacker tube, and the cable and windlass. The overlapping of the portions of sheet metal permit the different adjustments without interfering with the feeding of material to the stacker tube.

Then it is desired to fold the stacker tube the outer end of the stacker is elevated to the position shown in Fig. 4 and the locking rod is hooked through the eye of the eyebolt depending from the lower tube section and the cranked shaft is turned until the pivot pins of the hinge connection of the oscillating bars with the reciprocating bars are in axial alinementwith relation to each other and immediately below the hinge oint of the tube sections. When the parts are thus positioned the aperture of the wheel' mounted on the cranked shaft will be in alinement with onel arm of the bell crank and the bell crank lever may be turned to release the latch and unlock the outer tube section from the inner tube section. The cranked handle is now turned in a direction to wind up the cable on the windlass which will cause the outer tube section to turn on its hinge joint and swing to substantially a perpendicular position with a slight inclination toward the machine to which the stacker is attached, the pulleys located above the hinge joint of the tube sections and the 'outer spacing bar being positioned to stop the outer tube section at this point. The

cranked handle is now turned in the opposite direction permitting the stacker section to swing downward by gravity until it rests on the upstanding supporting frame. In swinging downward the tube engages the spacing bars and is supported thereby for a portion of its movement. Referring to Fig. 5 it will be noticed that the outer spacing bar passes between and below the looped cable when folded and that the cables from the pulley to the upstanding frame are at an angle with the load of the tube resting on the spacing bars, this peculiar arrangement of these parts permitting the tube being swung over the hinge joint of the tube sections and lowered to the upstanding supporting frame without a jolt or jar. In unfolding the stacker the reverse operation takes place, the crank handle is again turned to wind up the cable which movement will cause the looped cables to draw taut and initially lift the folded tube section by means of the spacing bars and afterward by a direct pull on the terminals of the cables which will elevate the outer tube section to a position almost vertical. The locking rod is now unhooked from the depending eye bolt and the windlass is unwound to lower the whole stacker until the looped stop cable is drawn taut and limits the further movement of the lower tube section and the upper tube section will then move to a position where its center of gravity will be over the dead center of its hinged connection with the lower tube section. Then in this position a further unwinding of the cable will cause the outer tube section to swing on its hinge to the full open position where it will be again locked to the inner section by means of the latch and the machine is thenin position to be operated as before. In winding up and unwinding the windlass the pawl in engagement with the ratchet wheel is adapted to hold said windlass in adjusted positions.

From the foregoing description it will be seen that the stacker is very simple in construction and operation and may be folded or unfolded by means of the windlass and cables.

Vhat I claim as my invention is:

l. An elevator and stacker, comprising a tube formed of an outer and an inner section hinged together, a latch for locking both sections together, jointed material moving members positioned within the tube, means for preventing the unlatching of said tube sections except when the hinge joint of the material moving means is in position to be folded with the tube sections, and means for folding and unfolding the said tube sections.

2. An elevator and stacker, comprising a tube formed of an outer 'and an inner section hinged together, a latch for locking both sections together, oscillating and reciprocating material moving bars hinged together and positioned within the tube, means for preventingthe unlatching and folding of said tube sections except whenV the hingejoint of said oscillating and reciprocating bars is in position so that saidw of an outer'and an inner section hinged together and pivotally mounted on said frame, the pivotal'connections -of the frame and the tube positionedqat right angles with relation to each other, a cranked shaft positioned within the inner tube section, anV

oscillating bar connected to the cranked shaft and provided with material engaging fingers, a reciprocating Vbar hinged to the oscillating bar and provided with material engaging lingers, a latch for locking both tube sections together, means for preventing the unlatching of the tube sections except when the hinge connection of the oscillating and reciprocating bars is in position so that said bars may be folded with the tube sections, and means for folding and unfolding the said tube sections. c

4. An elevator and stacker, comprising a supporting frame, a rectangular frame pivotally connected to the supporting frame, a tube formed `of an outer and an inner section hinged together and 'pivotally mounted on said frame, the pivotal connections of the frame and the tube positioned at right angles with relation to each other, a cranked i shaft positioned within the inner tube section and having its bearings concentric with the pivotal connections of the inner tube section with the rectangular frame, an oscill-ating bar connectedl to said `cranked shaft and provided with material engaging fingers, a reciprocating bar pivotally connected to the oscillating bar and provided with material engaging fingers, a latch for locking both tube sections together, means on the cranked shaft for preventing the unlatching of the tube sections" except when the pivotal connection of the oscillating and reciprocating bars is in position so that the bars may be folded with the tube sections, and means for folding and unfolding the said tube sections.

5. An elevator and stacker, comprising a supporting frame, a rectangular frame pivotally connected to the supporting frame,

'f a tube formed of an outer and an inner secthe pivotal connections of the inner tube section with the rectangular frame, a short shaft mounted on the rectangular frame and provided with a universal oint on its inner end and a pulley on its outer end, said universal joint being positioned in axial alinement with the vertical pivotal connections of the rectangular frame with the supporting frame, a short shaft mounted on the supporting frame and connected to the universal joint, power transmitting means between the short shaft mounted on the rectangular frame and the cranked shaft, an oscillating bar connected to said cranked shaft and provided with material engaging fingers, a reciprocating bar pivotally connected to the oscillating bar and provided with material engaging ngers, a'latch for locking both tube sections together, an apertured wheel mounted on the cranked shaft, a bell-crank lever positioned adjacent to the apertured wheel and having a connection withk the latch, the aperture of the wheel being so positioned with relation to the pivotal connection of the oscillating bar with the yreciprocating bar/that one arm of the bell 6. An elevator and stacker, comprising a supporting frame, a rectangularI frame pivotally connected to the supporting frame, a tube formed of an outer and an inner section hinged together and pivotally mounted on said frame, the pivotal connections of the frame and the tube positioned at right angles with relation to each other, a cranked shaft positioned within the inner tube section and having its bearings concentric with the pivotal connections of the inner tube section with the rectangular frame, a short shaft mounted on the rectangular frame and provided with a universal joint on its inner end and a pulley on its outer end, said universal joint being positioned in aXial alinement with the vertical pivotal connections of the rectangular frame with the supporting frame, a short shaft mounted on the supporting frame and connected to the universal joint, power transmitting means between the short shaft mounted on the rectangular frame and the cranked shaft, an

oscillating bar connected to said cranked y shaft and provided with material engaging fingers, ka reciprocating bar pivot-ally connected to the oscillating bar and provided with material engaging fingers, a latch for locking both tube sections together, an apertured wheel mounted on the cranked shaft, a bell-crank lever positioned adjacent to the apertured wheel and having a connection with the latch, the aperture of the wheel being so positioned with relation to the pivotal connection of the oscillating bar with the reciprocating bar that one arm of the bell crank lever can only be swung,` into the aperture of the wheel to unlock the latch when the pivotal connection of said bars is in proper position to permit the folding of the stacker tube and the said bars, a locking rod for holding the inner tube section in 10 AUGUST ROSENTHAL. Witnesses C. H. KEENEY, ANNA F. SGHMIDTBAUER.

Copies of this patent may be obtained for iive cents each, by addressing the Commissioner of Eatents, Washington, D. C.

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