US368037A

US368037A - Straw-stacker

Info

Publication number: US368037A
Authority: US
Publication date: 1887-08-09
Anticipated expiration: 1904-08-09

Description

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(No Model.)

J. L. WHITFIELD.

STRAW STAGKER.

Patented Aug. 9

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(No Model.)

' 'J. L. WHITFIELD.

. STRAW STAGKER. 1 V v .N0.-368,037. Patented Aug. 9, 18.87,.

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STRAW STAGKER.

No. 368,037. Patented Aug. 9, 17887.

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STRAW STAGKER;

No. 368,037. Patented Aug. 9, 1387.-

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STRAW STAGKER. No. 368,037. v Patented Aug. 9, 1887.

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UNITED STATES PATENT Orr ou.

JAMES L. \VHITFIELD, OF DOROHESTER, ILLINOIS.

STRAW-STACKER.

SPECIFICATION forming part of Letters Patent No. 368,037, dated August 9, 1887. application filed January 15, 1887. Serial No. 224,454. (No model.)

To all whom it may concern;

Be it known that I, JAMES L. WHITFIELD, of Dorchester, in the county of Macoupin and State of Illinois, have invented certain new and useful Improvements in Straw-Staekers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specificatiomand in which Figure I is a side view of the improved straw-stacker, showing the straw-elevator in its lower position, the machine being in condition for moving from place to place. FigJII is an end elevation with the parts in position shown in Fig. I. Fig. III is an enlarged section at III III, Fig. II. Fig. IV is an end view with the straw-elevator somewhat raised to exhibit parts of the mechanism more clearly than they are seen in Fig. II. Fig. Vis an en: larged detail of part of the gearing. Fig. VI is a horizontal section at VI VLFig. IV. Fig. VII is a horizontal section at VII VII, Fig. IV. Fig. VIII is an enlarged longitudinal section at VIII VIII, Fig. VI. Figs. IX and X are diagrams, showing the straw-elevator, respectively, in its upper and lower positions.

The machine is for use with athrashing-machine or grain-separator, as usual, the strawelevator being operated by connection with the thrasher.

1 and 2 are respectively the foreand hind wheels supporting the truck-body, which has longitudinal timbers 3 and cross-timbers I.

5 is a string-bolster bolted to or otherwise attached to the longitudinal timbers.

6 is a strong post attached to the bolster 5, and which forms the bearing upon which the upper works turn. The post 6 has a shoulder, 7, above'which it has a cylindrical part forming the pintle upon which turns the cross-bar 8. Thebar S has at the ends trunnions 9,which extend through the curved slots 10 of the castings 11. The castings 11 are secured to the side frames of the straw elevator. Each side frame is composed of three bars, 12, 13, and 14., secured together, as shown, or in any suitable manner.

15 is the extension of the straw-carrier frame, connected by hinges 16 with the main part,so that it may be extended when in use, or'

may be folded back on the main part, as seen in Fig. 1, when not in use.

17 is a metal or other frame forming the front part of the straw-elevator frame.

The trunnions 9 have bearings in links 18, jointed at 19 to the side bars, 12. The joints 19are concentric with the curved slots 10, so that the castings move on the trunnions without binding.

20 is a shaft having bearing in hangerbrackets 21, secured tothe cross-bar 3. This shaft carries four drums, 22 22 23 23.

24 is a ratchet-wheel fastupon the shaft,and 25 is a pawl engaging the wheel and preventing the. backward rotation of the shaft. The end of the shaft is formed at 26 to receive a hand-crank by which it is turned.

27 is a chain, cord, or cable,whose ends are secured to and coiled on the drums 22. From these drums the cord passes to and around pulleys 28, having bearing in the frame 17. The middle parts of the cord extend to and around the pulley 29, attached to a cog-wheel, 30, which has bearing on the extended base of the post 6, and is firmly attached to the bar 8 by braces 31. It will be understood that when the shaft 20 is turned so as to wind up the cord 27 on the drums 22 the end of the elevatorframe which is lowermost when the parts are in operative position will be drawn downward and the other end elevated, the frame swinging vertically on the trunnions 9.

It will be seen that the elevator-frame is pivoted some distance from its lower extremity, the object being to afford the requisite leverage for elevating its other end.

On the drums 23 of the shaft 20 are coiled cords, ropes, chains, or cables 32, which extend upward from the drums and over pulleys 33, suspended from the bar 8. From the pulleys 33 the cords extend to and around the pulleys 34,suspended from the elevator-frame, and from the pulleys 34.. Each cord 32 extends around a'pulley, 35, connected to the lower end of the link 18 upon each side of the elevator-frame. From the pulleys the cord extends to a staple, 36, on the side of the elevator-frame. The construction is such that when the shaft 20 is turned forward the cords are wound upon all four drums, 22 22 23 23, and the elevator-frame simultaneously tilted upon the trunnions 9 and moved bodily forward and upward on the trunnions as the castings 11 move upon the trunnions, owing to the strain upon the cords 32, by which the staples 36 are drawn toward the trunnions 9, so that the trunnions move in the slots 10 from the position shown in Figs. I and IX toward the position shown in Fig. X. To allow the elevatorto subside into the position shown in Fig. I, the pawl 25 is raised from the ratchetwheel 24. and the

cords

27 and 32 allowed to uneoil from their drums by the backward rotation of the shaft 20. lVhen the elevator is in its lower position its free end is supported by a standard-frame, 37.

38 is the main shaft of the machine, carrying a pulley, 39, having belt-c0nnecti0n with a pulley on a rotating shaft of the thrasher. The shaft 38 carries a bevel cog-wheel, 40, which engages a bevel-pinion, 41, on a vertical shaft, 42, passing axially through the post 6. The upper end of the shaft 42 carries a bevel-wheel, 43, which engages a bevel-pinion, 44, upon a shaft, 45, which extends through one of the trunnions 9 and carries a belt-pulley, 46. The belt 47 extends over two tightening-pulleys, 48 and 49, and to and around a pulley, 50, upon the shaft 51, by which the endless carrier of the elevator is driven. No novelty is claimed in this endless carrier or the means of driving it, and for that reason it is not shown.

Upon the vertical shaft 42'is a gear-screw, 52, which engages a screw gear-wheel,53,upon a shaft, 54-. The shaft 54. carries a spur-pinion, 55, which engages a spur-wheel, 56, upon the crankshaft 57. The crank-shaft 57 has endwise movement to allow the engagement or disengagement of the wheels 55 and 56. This endwise movement is given by a lever, 58, which has a usual connection with the shaft, so as to allow the free rotation of the shaft. The lever fulcrum is shown at 59. The shaft has a cireumferentially-grooved wheel, 60, and the forked end 61 of the lever engages in the groove of the wheel for the purpose described.

62 is a crank-arm attached to a disk, 63, on the shaft 57. This arm has a longitudinal slot, 64.

65 are screws which pass through the slot 64 and screw into the crank disk or head on the shaft 57. By loosening the screws 65 the crank-arm may be adjusted on the disk so as to fix the wrist-pin 66 at a less or greater dis tanee from the center of the disk, and thus diminish or increase the throw of the crank.

67 is a connecting-rod connecting the wristpin 66 with a wrist-pin, 68, upon the bevel cog-segment 69 upon the rock-shaft 70. The bevel-segment engages a cog-pinion, 71, on a vertical shaft, 72, carrying at its upper end a cog-wheel, 73, engaging the cog-wheel 30.

The operation of the stacker is as follows: The machine is put in position for the straw from the thrasher to fall upon the elevator and the free end of the elevator raised to the re quired height. The main shaft 38 is made to turn, and motion from this is communicated to the straw-carrier of the elevator. The elevator is caused to rotate back and forth on its pivot-post 6 by means of the crank 62, connecting-rod 67, cog-segment 69, cog-pinion 71, and cog-wheels 73 30, for it will be seen that the reciprocating motion of the cog-segment on its shaft as an axis will give the required reciprocating motion to the elevator on the post 6 as an axis. The distance which the elevator is made to swing is regulated by the length of the crank 62.

It will be understood that as the crank revolves at a low speed, it is driven by the screw-gear 52 53 and train of cog-wheels arranged to reduce the speed, so that the elevator travels slowly from side to side and deposits the straw in a curve concentric with the post 6. To stop the side movement of the elevator the crank-shaft is moved endwise to disengage the cog-wheels 55 and 56.

Any well-known clutch mechanism may be used in place of that described for disconnecting the crank-shaft 57 from its actuating mechanism.

I claim herein as new and of my invention-- 1. In astraw-stacker, the combination, with the base and the elevator-frame, of links pivoted at their upper extremities to the sides of the elevator-frame some distance from its end which is lowermost when in operative position, and turning at their lower extremities on suitable trunnions, ropes attached to said frame below its pivotal point, and a Windlass upon which said chains or ropes are wound, substantially as set forth.

2. The combination, with the elevator-frame, of the links 18, hinged at their upper extremities to the said frame some distance from the end thereof which is lowermost when in operative position, the fixed trunnions 9, upon which the lower ends of said links turn, the ropes 32, secured to the elevator-frame below its pivotal point and extending forward, guidepulleys 35, over which said ropes pass, and the Windlass upon which said chains or ropes are wound, substantially as set forth.

3. The elevator-frame, supported on trunnions 9, extending through curved slots 10 of the frame, links 18, pivoted to the frame and strapped to the trunnions, and cords connected with the ends of the arms 18, through which the trunnions pass, and to winding-drums, all combined substantially as and for the purpose set forth.

4. The combination of a shaft having drums, as 22 and 23, and cords arranged to wind on the drums and extending, respectively, to the extension 17 of the frame and to side arms, 18, by which the elevator-frame 12 13 14. is con neeted to trunnions secured to the turningbeam 8, said trunnions passing through slots 10 of the elevator-frame, substantially as and for the purpose set fortl 5. The combination, with the pivot-post 6, mounted to turn upon the main frame, and the elevator-frame pivotally supported thereby and projecting at its lower end beyond said post, of a Windlass carried by said post, a rope secured to the shaft 51 of the endless carrier,

secured at its ends to said Windlass, pulleys 28,

secured to the elevator-frame near its lower extremity and over which said rope passes, and centrically with the pivoted point 19, the belt- 1 the pulley 29, anchored to the post 6 and over tightening pulley 49, situated substantially as which the middle portion of said rope or chain shown, and the belt 47, passing over or around passes, substantially as set forth.

- 6. The combination, with the trunnions 9, the links 18, turning thereon at their lower ends, the elevator-frame pivoted at 19 to the upper ends of said links, and the pulley 50,

of the pulley 45,journaled concentrically with the trunnions 9, the pulley 48, journaled consaid pulleys, substantially as set forth.

JAMES L. WHITFIELD. \Vitnesses:

J. H. BROWN, VM. H. WHITFIELD.