US728511A - Pneumatic stacker. - Google Patents

Description

No. 728,511. r I PATENTED MAY 19, 1903.

' I I. L. ST'ALLARD.

- PNEUMATIC STA-GKER.

APPLICATION FILED FEB. 6. 190a.

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no MOD-EL.

PATEN-TBD MAY19, 1903.

No. 728,511. I

F. L. STALLARD. PNEUMATIC STAOKER.

APPLICATION FILED FEB, 6. 1903.

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N0 MODEL.

Francis L. Stallard I PATBNTEDMAY' 19, 1903.

RESTALLARD. I

PNEUMATIC STAGKER.

APPLICATION FILED FEB. 6, 1903.

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/vibneooeo UNITED STATES Patented May 19, 1903. PATENT OFFICE.

FRANCIS L. STALLARD, OF MACY, INDIANA, ASSIGNOR TO THE INDIANA MANUFACTURING COMPANY, OF INDIANAPOLIS,

RATION OF WEST VIRGINIA.

INDIANA, A CORPO- PNEUMATICQSTACKER.

SPECIFICATION forming part of Letters Patent No. 728,51 1, dated May 19, 1903.

Application filed February 6, 1903. 7 Serial No. 142,160. (No model.)

My present invention relates to that classv of devices used with separators and such like machines for conveying away the straw, 8m. Its ob ect is to produce such a device having a large range of adjustments; and said in-.

vention consists in suitable means for effectmg such adjustments.

Referring to the accompanying drawings,

. which are made a part hereof, and on which similar reference characters indicate similar parts, Figure 1 is a perspective view of a pneumatic stacker embodying my invention, showing such stacker when adjusted to its shortest length; Fig. 2, a similar view as seen from the opposite side when the stacker is adjusted to its extreme length; Fig. 3, a top or plan View of such a stacker, the adjustment and arrangement being the same as shown in Fig. 2, portions, however, being broken away to enable the distinctive fea-.

tures to be shown on a larger scale; Fig. 4, a side elevation illustrating the devices in the same condition as in Fig. 3; Fig. 5, a central vertical sectional view through the operating mechanism as seen when looking in the direction indicated by the arrows from the dotted line 5 5 in Fig. 3; Fig. 6, an underside plan view of the said mechanism as seen when looking upwardly from the dotted lines 6 6 in Figs. 4 and 5; Fig. 7, a horizontal sectional view as seen when looking downwardly from the dotted line 7 7in Figs. 4 and5; Fig. 7 a detail sectional view as seen when looking in the direction indicated by the arrows from the dotted line a a in Fig. 7; Fig. 8, a detail sectional view as seen when looking downwardlyfrom the dotted lines 8 8 in Figs. 4, 5, and 9; Fig. 9, a detail side elevation similar to a portion of Fig. 4, but on an enlarged scale, of the mechanism at the outer end of the stacker; and Figs. 10, 11, 12, 13,

- 14, and 15, transverse vertical sectional views various positions, as is common.

cated by the arrows from the dotted lines 10 10,11 11, 12 12, 13 13, 11 14, and 15 15, respectively, in Figs. 4 and 5.

This stacker is attached to and manipulated I from the machinewith which it is designed to operate, as a threshing-machine or separator,

any way which may be desired, the invention relating solely to the means for extending and retracting the duct-sections of which the main stacker tube or duct is composed.- For purin any of the usualand well-known ways or in poses of illustration I have shown a fragment of a separator 10; a fan-casing 11, which contains the usual stacker-fan (not shown;) a

lower duct-section 12, leading from said fancasing to the turn-table 13, carried by the separator; a winding-tackle 14 for raising and lowering the main stacker trunk or duct as a whole, and suitable telescopic elbow- sections 15 and 16, the one on the turn-table and the other on thelower main duct-section.

In my improved stacker the main stacker trunk or duct is composed of three sections 21, 22, and 23, on the outer end of the latter of whichis a suitable hood or deflecting device 24, which itself is usually adjustable to The'section 21, as is also common, is preferably mounted on an inner frame part or ring-frame 25, which in turn is mounted on a pivot-rod 26, carried by suitable .arms 27, extending out from the turn-table 13. Said duct-section 21 is non-movable inres'pect tothis ring-frame.

The section 22 telescopes back over the section 21, and the section 23 in turn telescopes back over the section 22, so that when the sections 22 and 23 are withdrawn to the extreme inner position the total length of the main straw-stacker trunk or duct is substantially only that of one section, the parts 00- cupying the positions shown in Fig. 1.

' Extendingout from the sides of the ringframe 25 in a bracewise direction are the bars 31 and 32, and they terminate at or near the outer end of the duct-section'21, where they 5 are rigidly attached to an arch-like frame 33. These bars are preferably T-bars in form, and the arrangement or disposition in respect to the other parts is preferably that shown in the drawings.

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Extending back from the arch-frame 33 to the upper portion of the ring-frame 25 and preferably connected to standards 34 35 (which standards are preferably formed integrally with said ring-frame) are rods 36 and 37, which serve the double purpose of guy or truss rods and track bars or rails, upon which an extensible bar, presently to be described, is carried. These rods or bars 36 37 being in tension may be (and preferably are) small as compared to the brace- bars 31 and 32, and they may be of any form desired. As, however, they are designed to form track-rails as well as truss-rods, I prefer to make them rectangular in cross-section and of greater width than thickness and arrange them with the width vertically and the thickness horizontally, as shown. These bars 36 and 37 are arranged a suitable distance apart, so that the extensible bar which operates the outer duct-section may be placed between them and carried thereby by means of suitable connections, as rollers or the like. This extensible bar 41 is preferably in the form of a small I- beam, although it may be of any other suit able form, and it serves as an operating-bar by which the two movable duct-sections are extended and retracted. It is connected to and moves with the middle duct-section 22. (See Figs. 5 and 11.) At its rear end it carries the trucks or rollers 42 and 43, which engage with the under sides of the bars 36 and '37, which thus form track-rails therefor, and

it is supported at or near the extreme outer end of the frame of which said bars 36 and 37 form a part by means of other rollers 44 and 45. Said rollers (where the bar 41 is an I- beam or a T-bar) are preferably mounted on stud-shafts extendinginwardly from the sides of the arch-frame 33, so that said trucks pass below the flanges on the upper edges of said beam, and thus support it at this point, although they may be carried elsewhere and arranged differently, if desired, the only essential being that they shall be so disposed as to support said extensible bar both while at rest and when being moved.

A shaft 51, bearing a sprocket-wheel 52 and adapted to be turned by a crank 53, is mounted in suitable bearings carried by the ringframe 25, these hearings usually being holes drilled through the standards 34 35 on said ring-frame. A second shaft 61, carrying two sprocket- wheels 62 and 63, is mounted in suitable bearings in the arch-frame 33, said bearings being sufficiently high in said frame so that said sprocket-wheels are above the rods or bars 36, 37, and 41. A third shaft 71, bearing a sprocket-wheel 72, is mounted in suitable bearings in ears 73 74 at the extreme outer end of the extensible bar41,and a fourth shaft 81, hearing a sprocket- Wheel 82, is mounted in suitable hearings in ears 83 84 at the extreme inner end of said bar 41. A sprocket-chain 55 runs from the sprocketwheel 52 to the sprocket-wheel 62, and a secondsprocket-chain runs from the sprocketwheel 63 to the sprocket-wheels 72 and 82 and thence to the inner end of the duct-section 23, to which its ends are connected. 5, 9, and 14.) The sprocket-chain 55 simply provides a means for actuating the shaft 61 from the inner end of the duct. The ends of sprocket-chain 65 are connected both to the outer duct-section 23 and to a saddle 46, mounted on the extensible duet-section-operating bar 41, and said saddle is adapted, as will be presently described, to travel on said bar during a portion of the operation of the apparatus and to be locked to move with said bar during another portion of the operation. By this means both the duct- sections 22 and 23 are extended and retracted by means of this same sprocket-chain 65, one being moved when the saddle 46 is free to travel on the bar 41 and the shaft 61 is being revolved in one direction and the other being moved when the saddle 46 is locked to said bar 41 and the shaft 61 is being revolved in the other direction. It will be understood, of course, that instead of these several sprocket-wheels and sprocketchains any other suitable power connections may be employed, such as sheaves and wirp ropes or other appropriate devices, without departing from my invention, it being only necessary to secure suitable transmission of power from one of these shafts to another to effectuate the result.

The saddle 46 is fixedlyattached to the outer duct-section 23, so that when the saddle is fixedly connected or locked to the extensible bar said duct-section and said bar maintain a constant relation to each other, and when the saddle is unlocked and permitted to move in respect to said bar then said duct-section will also move in respect to said bar, as will be presently described. Mounted on the saddle 46 is a latch 47, the point of which is held into forcible although moderate contact with the under side of the beam 41 at all times by means of a spring 48. At the proper point in said extensible beam is a perforation or notch 49, with which the point of said latch is adapted to engage when said latch-point is brought to proper position to enable it to do so. When the parts are retracted, (in shortening of the stacker-duct,) a projection 19 on said latch comes in contact with a strike 38, usually formed integrally with the arch-frame 33, and this throws said latch out of engagement and holds it out until the succeeding proper movement is completed.

There is a lock-pin 40 on one side of the extensible bar 41 at or near its rear end, and a catch-lever 39, mounted on one of the bars 34 or 35, is adapted to engage with said pin and hold said beam 41 from being drawn outwardly until said catch lever is released. This is to prevent a wrong starting of the parts when it is desired to begin extending -the stacker, which might happen on account of lack of sufficient friction to hold such parts from starting.

The operation is as follows: Assuming the (See Figs.-

lation, as shown in Fig.1, and assuming that the latch-lever 39 is engaged with the pin 40,

so that the bar 41 is held to its inner or retracted position, proper revolution of the shaft 51 (by means of the crank 53) will through the various sprocket wheels and.

chains operate to draw out the outer ductsection 23 to the full distance permitted by the construction of the device, the saddle 46 sliding along the bar 41 as the movement progrosses. When this movement has reached its limit and the duct-section 23 is thus completely extended, the latch 47 will register with the notch or perforation in the bar 41 and engage therewith, locking the saddle and said bar together. Thereupon the operator releases the latch-lever 39 from the pin 40 and reverses the motion of the shaft 51, which through the sprocket wheels and chains then draws .out the bar 41 and the duct-section 22 until they have reached their extreme outer position, if such extreme outer position is desired, thus securing the extreme extension of the main stacker tube or duct. I am thus enabled to provide a pneumatic stacker in which I can secure the delivery of the mate tion, what I claim as new, and desire to secureby Letters Patent, is

1. The combination,in apneumatic stacker, of a duct composed of three sections, a track, an extensible duct section operating bar mounted on said track, a device mounted on.

said bar andadapted to travel thereon during one period in the operation of the apparatus and to be locked to be moved therewith during another period of said operation, and means for moving said device.

2. The combination,in a pneumatic stacker, with the duct'sections thereof, of a movable ductsection-operating bar, a device secured to a duct-section and mounted on said bar, and a lock whereby said device is locked to said bar during one period of the operation, while it is free to move in respect thereto during another period, and means for actuating said device.

8. The co'mbination,in apneumatic stacker,

part by which it and said duct-section are carried, a duct-section-operating bar which is movable in respect to said track, a saddle mounted on said bar and fixedly secured to the outer'or third duct-section; a look by which said saddle may be locked to said bar at the outer limit ofits movement, a flexible connector the ends whereof are connected to the outer duct-section at approximately a point where said saddle is connected thereto, and means for driving said flexible connector from a point near the outer end of said track.-

4. The combination,in a pneumatic stacker, of a duct composed of three sections, a track, a duct-section-operating bar mounted on said track, a frame part carried at the outer end of the track, a shaft mounted in said frame bearingsuitable wheels or pulleys, a shaft mounted in the frame at the rear of the inner duct-section also bearing a suitablewheel or pulley, a flexible connector connecting the wheel or pulley on the last-mentioned shaft with one of the wheels or pulleys on the firstmentioned shaft, other wheels or pulleys carried in bearings at the ends of the duct-section-operating bar, and a second flexible connector passing over the second wheelor pulley on the first-mentioned shaft and over the wheels or pulleys carried by the duct-sectionoperating bar and having its ends connected to the inner end of the outer telescopic ductsection, substantially as set forth.

5. Thecombinatiominapneumaticstacker, of a duct composed of three telescopic sections, a track, a duct-section-operating bar mounted on said track, a flexible driver passing around wheels or pulleys at the ends of said bar, a detent whereby said bar may be held in its retracted position until released, means for propelling the flexible driver and thus extending the outer telescopic duct-section in respect to said bar, and means for propelling said bar and intermediate duct-section together with said outer duct-section outwardly, whereby first the outer duct-section and then the second duct-section are telescopically extended, substantially as set forth.

6. The combination in a pneumatic stacker,

of a duct composed of telescopic sections, a supporting-frame for said duct also composed of sections, one of which is longitudinally movable in respect to the other and is also longitudinally movable. in respect to one'of the duct-sections, a part connected to said duct-section embodying a catch adapted to engage therewith at one point'of the move-.

ment, and a strike on a stationary part adapted to disengage said latch when that point in the travel of the parts thus connected is reached.

7. The combinatiomin a pneumatic'stacker, of a duct composed of telescopic sections, and a framework for supporting said duct, said framework embodying a frame part'at the inner end of the structure, two members extending out bracewise from a low point, on said frame part, and rods extending from the outer end of the said brace-like members back to a high point on said frame part.

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8. Thecombination,inapneumatic stacker, of a duct composed of telescopic sections, and a frame for supporting said duct composed of a stationary section including an upright frame part, brace'rods and combined trussrods and track-rails, and a second section mounted on the said track-rails and movable longitudinally with respect to said stationary section.

9. Thecombinationflnapneumaticstacker, of a duct composed of telescopic sections, a duct-section-operating bar, a device adapted to travel with relation to said bar during one period in the operation of the apparatus and to engage and move therewith during another period of said operation, and means for moving said device.

-to engage and move with said bar in either direction at another period, and means for actuating said device.

In Witness whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this 3d day of February, A. D. 1903.

FRANCIS L. STALLARD. [L. 3.

Witnesses:

CHESTER BRADFORD, JAMES A. WALSH.

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