US537691A

US537691A - Pneumatic straw-stacker

Info

Publication number: US537691A
Authority: US
Publication date: 1895-04-16
Anticipated expiration: 1912-04-16

Description

(Model. 4 sheets- Sheet 1.

F. P. LANDIS. PNBUMATIG STRAW STAGKER.`

No. 537,691. PatentedApr. 16, 18195.

WVM/Leno e o WM 5516, ftozmen l iugm (Model.) 4 SheeyS-Sheet 2.

F. F.' LANDIS.

. PNBUMATIG STRAW STAGKER. N0.. 537,691.

Patent-Bmpr. 16,1895.

(Model.)

4 sheets-sheetja. I'. F. LANDIS.

PNBUMATIG STRAW SSIIAGKBR.A l No. 537,691. Patented Apr. 16,1895.

I 515121 M abbo/.anew

(Model.) "4`Sheets$heet 4.

F. F. LANDIS. PNEUMATIG STRAW STACKBR.-

Patented Apr. 16, 1895.

Ffa.. .M

Wff/VESSES UNTTTED STATES PATENT Garros.

FRANK F. LANDIS, OF WAYNESBOROUGH, PENNSYLVANIA.

PNEUMATIC STRAW-STACKER.

SPECIFICATION forming* part Of Letl ers Patent N0.'537,691`, dated April 16, 1895.

Application filed January lS, 1895. Serial No. 535,387. (Model.)

T0 @ZZ whom t may concer/'11,.-

Be it known that I, FRANK F. LANDIS, a citizen of the United States, residing at VVaynes` borough, in the county of Franklin and State of Pennsylvania, have invented certain new and useful Improvements in Pneumatic Straw-Stackers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in -the art to which it appertains to make and use the same.

This invention relates to pneumatic straw stackers; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure l is a side View of the upper part of the straw stacker, showing the telescopic discharge pipe and its operating and supporting devices. Fig. 2 is a side view showinga modification of the device for operating the dclector. Fig. 3 is aplan view ofthe discharge pipe. Figa is an end View of the defiector, showing it forced backward onto the end ol the discharge pipe. Fig. 5 is a vertical section through the discharger casing and the straw chamber, showing the parts which form the lower part of the straw stacker. Fig. 6 is a front view of the discharger looking from the straw chamber and showing the discharger casing in section. Fig. 7 is a front View of the discharger with the angle-shaped ring ll and the plates 12 removed. Figs. 8 and 9 are, respectively, crosssections taken on lines .fa-Qc and g/-g/ in Fig. 7. Fig. lO is a detail view of a portion of one of the arms 7 and shows the ring ll and one of the plates 12 in section.

A is the end portion of the casing of a thrashing machine or separator, which may be of any approved construction adapted to separate the grain from the straw and to discharge the straw at the rear end of the machine. y

B is the straw chamber at the'rear end of the thrashing machine for receiving `the straw and chaff from the separating mech-anism.

B is the discharger casing secured'outside the casing A at one end of the chamber B.A

This discharger casing is preferably provided with ashort cylindrical throat piece h, and b is an offset portion of the chamber B which joins onto the lower part of the throat piece. The discharger casing is preferably secured upon one side of the casing of the separator substantially as shown in the Patent. No. 512,553, issued to me on January 9, 189i; but it may be secured on the end of the separator casing, or arranged horizontally underneath it, or in any other position found most convenient.

C is the discharger shaft journaled in the bearings C which are secured to the casings A and B. The shaft C is provided with the belt pulley o for revolving it, and the direction of revolution is indicated by the arrows in the drawings.

D is the disoharger secured upon the shaft C, inside the casing B, by means of its hub 2 which has a ange 3 at one end, and substantially radial Hanges 4 and 5 projecting from its sides. A disk 6 is secured to the flange 3, andruns close adjacent to the discharger casing. The lianges 4t are of the same length as the hub and are arranged at opposite sides thereof. The lianges 5 are comparatively narrow and are arranged between the ianges Ll. The hub and the flanges 4 project through the throat piece into the straw chamber.

The discharger is provided with two narrow arms 16 which are secured to the flanges 5 and run wholly within the discharger casing; Arms 7 are secured to the iianges 4 and are provided with inclined portions 8 where they project through the throat piece, and shoulders 9 inside the casing B near the projecting bead l0 on the end of the throat piece. An angle-shaped ring 1l is secured on the shoulders 9 and revolves with its vertical flange in proximity to the said bead. The vertical flange of the ring ll is larger in diameter than the opening of the throat piece so that the annular space between the throat piece and the discharger is covered laterally and there is no free and unobstructed pas- Y sage for the air driven off by the discharger from the discharger casing into the straw chamber. The air in the disoharger casing cannot pass freely through the narrow vertical space between the said [lange and bead because it has to pass over the top of the flange to get to the said space. Curved plates 12 for catching the straw are secured to the ring 11 and to the inclined portions 8 of the arms 7, and form portions of a cone, the base of which abuts against the vertical flange of the ring 11. Each plate 12 has a concave portion 13 in front, commencing at the arm 7 and extending forward in the direction ot' the motion of the discharger to 'a point on the periphery of the ring 11 a little in advance of the arm 16. Each plate 12 also has a concave portion 14 at the rear, commencing at the arm 7 and extending rearward of the direction of motion to a point on the periphery of the ring 11 about halfway between the

arms

7 and 16. Concavo-con Vex plates 15 are secured to the concave portions 14 ofthe plates 12 and to the disk 6, and are arranged at right angles to the disk 6. The edges of the plates 15 are curved in front so as to join onto the concave portions of the plates 12, and the rear portions of the plates 15 between the ring 11 and the disk 6 have rearwardly curved lips 17.

When the discharger is revolved rapidly.

the straw in the straw chamber is drawn through the throat piece between the parts ot the cone and the arms of the discharger, and is flung up the delivery pipe d which eX- tends vertically to the top ot` the casing A. The discharger also draws in air and forces it up the delivery pipe with the straw, and the current of air thus formed carries the straw through the discharge pipe,hereinat'ter fully described, and packs it on top of the stack. No straw passes between the bead of the throat piece and the ring 11 because the straw is caught by the projecting concave portions 13 in front of the plates 12 of the cone, and is flung up the delivery pipe by the arms 7 and the plates 15. The narrow arms 16 also catch the straw which enters freely and lling it up the delivery pipe. The straw which strikes the edges of the narrow arms 16 slides along them radially and passes through the spaces 50 between the said arms and the ring 11. As both the arms and the ring are revolving at the same velocity, the straw is not crushed or broken as there is no grinding action between the opposed parts between which the straw passes. There are `also no back currents of air through the spaces 50 because the wide arms 7 sweep through the whole area of the space between the disk 6 and .the ring 11. There is a very slight back currentof air from the discharger casing through the space 51 between the ring 11 and the bead 10, but this back current is no more than desirable and sufcient to keep the said space clean.

The plate 15 closes one halfof thedischarge space between each wide arm 7 and the next following narrow arm 16, and as there is no air thrown off from the periphery of the discharger behind the plate 15, the lip 17 is made very effectual in propelling the straw around the periphery of the discharger casing and tlinging it up the delivery pipe. The bulk of the straw is discharged by the wide arms 7, and the rear parts of the plates 15 and the lips 17, while the narrow arms 16 discharge but little more than dust, air and some short straw.

The discharger may be constructed with six or more arms, if desired, arranged in a simil'ar manner to those hereinbet'ore described.

I do not limitrnyself to any particular construction of straw chamber or discharger casing, in carrying out this invention, as those parts may be of any approved form and construction.

The delivery pipe d has a llexible junction pipe d journaled on its upper end and joining it to the discharge pipe F. The flexible junction pipe d is constructed so as to permit the discharge pipe F to be moved about freely in a vertical plane. It may be made in any manner that will permit it to accomplish its purpose, but it is preferably constructed as shown and described in the Patent No. 514,266, issued to me on February 6, 1894.

The discharge pipe F is provided with an upper pipe section F which slides telescopically over the lower section and enables the length of the discharge pipe to be increased or diminished as required.

G isa circular bracket secured to the top ot' the machine casing A, and H is the cylindrical base of the standard H which supports the discharge pipe. Balls g are interposed between the base H and the bracket G, and the construction of these parts is fully described in a separate application, Serial No. 528,204, tiled November 8, 1894. The sides of the standard I-I consist of two bars I, and I is a stay chain secured to the rear part of the base H and to the upper parts of the bars I. A catch t' secured between the bars l, andthe upper part of the chain I drops into the said catch and permits the bars I to be set'at different angles, by lengthening or shortening the stay chain, by slipping different end links into the catch, and turning the bars I upon the pins t" by which they are pivoted to the base- H. A circular toothed rack or worm wheel 20 is formed on the base H, and the standard and discharge pipe are revolved by means of the hand wheel 21 secured on a shaft 22. The shaft 22 is journaled in bearings on the bracket G, and is connected to the worm wheel bya worin of approved construction.

J is a ring secured to the discharge pipe F, and 7c are longitudinally arranged tubes or bars secured in bearingsj on the ring J.

K is a ring provided with bearings K which are secured to the upper ends of the tubes 7a. The lower ends 7c of the two lower tubes are passed through the bearingsjand are pivoted, by the sockets 24 and the pins 25, to the lugs IOO tog

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26 on the baseH. Stays 27 couple the sockets 24 to the upper part of the ring J.

The angle of the discharge pipe is changed and varied by means of a winch J', and a rope jconnected to the said winch and to the upper part of the discharge pipe. The winch is attached to any desired part of the standard H', and is of any approved construction. The rope j for changing the angle of the discharge pipe also affords a means for sliding its upper section telescopically as fully decribed and claimed in a separate application,

Serial No. 528,204, led November 8, 1894. The rope j is secured at one end to the cross piece 30, and two cords 3l are attached to the ends of the cross piece and pass over two similar sheaves 3l at the top of the discharge pipe, and have their lower ends secured to the ring K. These two cords A3l make the pipe slide steadier than when a rope j passes over a single sheave at the top of the discharge pipe and has its end secured to the ring K. Two

sheaves

32 and 33 are journaled at the top of the standard II. Two sheaves 34 and 35are journaled in the bracket 36 on the upper side of the ring K,\and one sheave 37 is journaled in a bracket onpthe upper sidel of the lower end of the pipe section F. The ropej passes from the cross piece 30 around the

sheaves

32, 34, 37, 35, and 33, in the order stated, and is attached to the winch. In winding up the rope to raise the pipe, the various parts of the rope move in the directions indiend, segment of the deiector.

cated by the arrows in the drawings.

M is the deflector consisting of three or more segments pivoted together and to the dis charge pipe, at the end thereof, by the shaft m. The segments are U-shaped and their top portions are preferably concave-convex in cross-section. At its upper end, the lower side of the discharge pipe is bent outward forming fiat sides m having bearings n for the shaft m to revolve in. The upper side n of the pipe is concave-convex at its end and is concentric with the shaft m so that the segments may slide back upon it.

N is a spiral spring encircling the shaft m. One end of this spring is secured to the shaft by the pin o, and its other end is bent outward and bears against a stop pin o on the pipe. The tension of this springl normally holds the detlector in its forward position as shown in Fig. 1 of the drawings.

N is a flexible connection, such as a strap or chain, connected to each segment of the detlector and to the top of the pipe. This flexible connection affords a means for preventing the spring from forcing the segments of the dedector too far forward, but any other equivalent means may be used for effecting the same result.

P is a cord for pulling back the deliector. The lower end of this cord is engaged by a catchp on the lower end of the discharge pipe.

R is a sheave operatively connected to the The cord P passes over the sheave R, and over a sheave S journaled on a pin secured to the lowerend of the pipe section F,and has its other end secured to the ring K. When supported in this manner the cord P is not altered in length by the telescopic movement of the discharge Pip@ l In Fig. 1 the sheave R is connected to the end segment by a cord t which is carried by the eyes t projecting from the segments, and has its lower end fastened to the block o in which the said sheave is journaled.

In Fig. 2 the sheave R is carried by an arm R which is journaled on the end of thev shaft mand is connected to the end segment by the extension r', so that the cord t is not required.

In carrying out this invention I do not contine myself to the use of the various parts in the combination shown. For instance, the dellector may be used on other 'forms of discharge pipe, and the discharge pipe hereinbefore described may be fitted with any other approved form of deiiector or deector pipe. The discharger hereinbeforedescrbed may also be used in combination; with other approved forms ofdischarge` pipes and their operating mechanisms, or any other approved form of discharger `may be substituted forit.

The standard and the tackle for raisingy and telescoping the discharge pipe which I have hereinbefore described and shown in the drawings, are not hereinafter more fully claimed as the said parts are claimed in the concurrent application Serial No. 528,204, tiled November 8, 1894.

1. In a pneumatic straw stacker, the combination ,with astraw chamber, and a discharger casing; of a revoluble discharger provided with a disk and arms, portions of the said arms being arranged to project laterally through the inlet opening of the discharger casing into the straw chamber; and straw catching devices arranged at the periphery of the discharger and carried by the projecting portions of the said arms, substantially as set forth.

2. In apneumatic straw stacker, the combination, with a straw chamber provided with anoffset portion at its lower part, and a discharger casing provided with a throat piece joining onto the said offset portion; of a revoluble discharger provided with a disk and arms, portions of the said arms being arranged to project into the offset portion of the straw chamber; and straw catching devices carried by the projecting portions of the said arms, substantially as set forth.

3. In a pneumatic straw stack er, the combination, with a straw chamber, and a discharger casing; of a revoluble discharger provided witha disk and with narrow arms and wide arms arranged alternately and substantially at right angles to the disk, portions of the wide arms being arranged to project into the straw chamber; and straw catching de- IOO IIO

vices carried by the projecting portions of the said wide arms, substantially as set forth.

4. In apneumatic straw stacker, a revoluble discharger, comprising a hub, a disk secured to one end of the hub, arms of different widths arranged substantially at right angles to the said disk, and straw catching devices carried by the wider arms, substantially as set forth.

5. In apneumatic straw stacker, a revoluble discharger, comprising a hub, a disk secured to one end of the hub, arms arranged sfubstantially at right angles to the said disk and provided with inclined portions 8, a ring secured to the said arms, and curved plates 12, for catching the straw, secured to the said ring, in conical form, and having concave front edges 13, substantially as set forth.

6. In a pneumatic straw stacker, a revoluble discharger, comprising a hub, a disk secured at one end of the hub, arms provided with inclined portions 8, a ring secured to the arms, the curved plates 12, for catching the straw, secured to the said ring, in conical form, and having front and rear concave edgesl 13 and 14, and the concavo-oonvex plates 15 arranged between the concave edges 14 and the said disk, substantiallyas set forth.

7. In a pneumatic straw stacker, the combination, with a discharger casing provided with a throat piece having an inwardly projecting bead; of a revoluble discharger provided with a disk and arms, portions of the said arms being arranged to project through the said throat piece, straw catching devices carried by the ends of the said arms, and an angleshaped ring secured to the said arms adjacent to the bead on the throat piece with its vertical lange covering the annular space between the throat piece and the discharger, substantially as set forth.

8. In a pneumatic straw stacker, the combination, with a revoluble standard comprising a cylindrical base, side bars pivoted to the said base and provided with a chain catch at their upper ends, and an adjustable stay chain connected to the rear of the said base and engaging with the said catch; of a discharge pipe connected at its lower end with the said base, and a connection-such as the ropej-arranged between the upper part of the said pipe and the upper part of the said standard, substantially as set forth.

9. In a pneumatic straw stacker, the combination, with a supporting standard; of the rings J and K, and the tubes secured to them; the sockets secured to the projecting ends of the lower tubes and pivoted to the said base of the standard; the stays secured to the said sockets and to the ring J; and a discharge pipe formed of telescopic sections and supported by the said rings and standard, substantially as set forth.

10. In a pneumatic straw stacker, the combination, with a discharge pipe formed of telescopic sections, and the rope 7" for sliding the upper section; of two sheaves journaled at sheaves and having their upper ends con` nected with the said rope, substantially as set forth.

11. In a pneumatic straw stacker, the oombination, with a discharge pipe formed of telescopic sections, and the rings J and Koonnected together, the lower ringJ being secured to thelower pipe section; of a detiector formed of segments and arranged at the end of the upper pipe section, a sheave R operatively connected to the outer end segment of the deflector, a sheave S at the lower end of the upper pipe section; and a cord secured to the ring K at one end, passing over the sheaves S and R, and having its other end supported at the lower end of the discharge pipe, substantially as set forth.

l2. In a pneumatic straw stacker, the combination, with a discharge pipe, of a deflector Vformed of U-shaped segments pivoted to the lower part of the pipe at its upper end, means for preventing the defiector segments from sliding too far forward, and a spring normally holding the said segments extended, substantially as set forth.

13. In a pneumatic straw stacker, the combination, with a discharge pipe, of a deilector formed of U-shaped segments, a shaft pivoting the said segments to the lower part of the pipe at its upper end, means for preventing the said segments from sliding too far forward, and a spiral spring encircling the said IOC) shaft and normally holding the said segments extended, substantially as set forth.

14. In a pneumatic straw stacker, the combination, with a discharge pipe, of a deflector formed of U-shaped segments pivoted to the lower part of the pipe at its upper end, means for preventing the segments from sliding too far forward, a spring normally holding the said segments extended, an arm connected to the end segment of the deiiector, a sheave carried by the said arm, and a cord passing over the said sheave and affording a means for retracting the said segments, substantially as set forth.

15. In a pneumatic straw stacker, the combination, with a discharger casing having a throat piece at one side for the straw to enter; of a revoluble discharger provided with a disk and arms of .different widths, and a ring se-y cured to the wider arms and revolving in proximity to the inner end of the said throat piece, substantially as set forth.

16. In a pneumatic straw stacker, arevoluble discharger, comprising ahub, a disk at one end of the hub, arms of dierent widths, and a ring secured to the wider arms parallel with the disk, spaces 50 being formed between the edges of the narrow arms and the ring, for the straw to pass through, substantially as set forth. t

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17. In a pneumatic straw stacker, arevoluble disoharger, comprising ahub, a disk at one end of the hub, arms of dierent widths, and plates provided with projecting lips and clos- 5 ing part of the peripheral discharge space be- Witnesses:

tween each wide arm and the next following L. I-I. LANDIS, narrow arm, substantially as set forth. A CLAYTON BECKNER.

In testimony whereof affix my signature in presence of ltwo witnesses.

FRANK F. LANDIS.