US734067A - Pneumatic stacker. - Google Patents

Description

No. 734,067. PATENTED JULY 21, 1903.

' L. HOLLAND-LBTZ.

PNEUMATIC STAGKBR.

APPLICATION 1 1.21) rm. a,.19o2.,

' 10 MODEL. 2 SHEETS-SHEET 2.

tie. 734,067.

UNIT D STATES Patented July 21, 1903.

PATENT OFFICE.

LOUIS HOLLAND-LETZ, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE PLANO MANUFACTURINGCOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SPECIFICATION forming part of Letters Patent No. 734,067, clated'July 21, 1903.

Application filed February 3, 1902. Serial No. 92,326. (No model.)

To all whont it may concern:

Be it known that I, LoUIs HOLLAND-LETZ, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Pneumatic Stackers, of which the following is a specification.

My invention is concernedwith certain improvements in that class of devices known as to wind-stackers, which are used in discharging straw, shredded fodder, &c., from separators, corn-huskers, shredders, &c., in any desired direction or elevation to form a stack of the material operated on, and'is designed to produce a device of theclass described which shall be simpleiu its construction, yet strong and durable, and capable of adjustment to deliver the material in every possible employed in moving the telescoping section of the pipe to lengthen or shorten it, and finally with the novel construction of the deflecting-plates that control the direction of the discharge from the outer end of the pipe. To illustrate my invention, I annexhereto two sheets of drawings, in which the same reference characters are used to designate identical parts in all the figures, of which Figure l is a side elevation of one end of a corn h usker and shredder, showing my invention applied thereto. end of the discharge-pipe, showing a difierent adjustment'ofthe deflecting-plates. Fig. 3 is a section on the line A A of Fig. 1. Fig. 4 is a detailoft-hemechanismforoperatingthewinding-reel to'raise or lower the discharge-pipe.

Fig. 5 is a central vertical section through the fan-casing and'fan. Fig. 6 is an enlarged detail in section through one of the swivelso operatingthe telescoping section of the pipe Fig. 2 is a View of the 'is wound; and Fig. 10. is an enlarged detail thereof in section, showing how the cable is secured to the drum.

The fan-casing is attached directly to the delivery end of the machine 11, completely closing said end,except forthe eye 12,through which the straw and shredded fodder are drawn into the fan-casing. The fan-casing is built up of the back piece 13, the front or eye piece 14, and the peripheral strip 15, connecting these two pieces, and of the spiral shape customarily employed in this class of devices. The back piece 13 is of the shape in cross-section clearly shown in Fig. 5, being convex on its inner face and concave on its outer face and having the long bearing 16 for the fan-shaft 17 projecting from the center of its outer face, which is preferably strengthened, and the bearing 16, supported by the radial ribs 18, formedthereon'. The outer ends of these ribs 18 have the eyes 19 formed thereon, through whichpass the bolt-rods 20, by which the peripheral strip or curved plate 15 is securely clamped between the grooves 21 and 22, formed on the inner edges of the back piece 13 and the eyepiece 14-, respectively, so as to form an air-tight'casing. The eye-piece 14 is of a generally convex shape on its outer face and correspondingly concaved on its innor face. To get a considerable space between the inuer edges of-the fan-blades 23, the piece is concaved suddenly at 24 and again at 25 immediately adjacent the eye 12. The eyepiece 14 is likewise provided with radial ribs and eyes corresponding to the ribs 18 and eyes 19 of the back piece and have the same functions.

The casing of the machine, as seen in Fig. 5, is so shaped and located that the straw or shredded materials slide or are drawn down the incline 26 into the eye of the fan. The conical back of the fan is secured to the correspondingly-shaped but smaller casting 28, secured on the inner end of the shaft 17, the outer end of which is journaled in the bearing 29, secured on the yoke-piece 30, preferably constructed of a strip of angle-iron and secured to two of the ribs 18. The yokepiece also serves to hold the belt 31 upon the fan-driving pulley 32, secured on the shaft 17. The belt 31 is preferably driven from the cylinder or shredder-head shaft 33, its direction being changed by passing over the vertical idler-pulleys 34, suitably journaled at one side of the casing. The plates 23 are arranged tangentially of the cone 28 and have their inner ends cut away somewhat, as seen at 35, so that a considerable space at the center of the cone is free from any projection of any character upon which the material can catch and clog. A considerable open space exists between the eye and the center of the fan, and it will be readily apparent that material drawn into the eye of the fan will be rapidly and eificiently discharged by the blades thereof in a powerful current of air, that will carry it with great velocity to the outermost end of the stacker.

The discharge end of the spiral fan-casing is drawn in to the form of an inclined tube 36, which has secured on the outer end thereof the vertical flange 37, which is circular in its outline as it crosses the flattenedor elliptical pipe at an acute angle thereto. This flange 37, as illustrated in detail at 36, has the bearing-surface 38, which cooperates with the bearing-surface 39 of a complementaryshaped cooperating flange 40, secured on the elbow-section 41 of the pipe. To hold these flanges together with firmness and yet permit the elbow-sections being rotated relative to the section 36, the bearinglugs 42 are formed at intervals on the outer edges of the flange and have passing through them the bolts 43, which have interposed between their heads and the socket 44, secured thereon, the flanged roller 45, which takes over the edge of the flange 37 and holds the flanges securely together, while permitting the rotation of the section 41. A helically coiled expanding spring 46 is interposed between the nut on the ends of the bolt 43 and the lug 42, so as to hold the roller 45 yieldingly in contact with the flange 37. The upper end of the elbow-section 41 is provided with a flange 47, similar to the flange 37, cooperating with the flange 48, similar to the flange 40 and secured on the, lower end of the pipe-section 49 and held together for rotation by the same connections as are employed on the flanges 37 and 40. The lower end of the pipe-section 49 has the elbow portion 50, and by an examination of Figs. 1 and 5 it will be apparent that these swivel-joints thus formed in the pipe, in connection with the two elbow portions, will permit me to adjust the section 49 at any desired angle to the vertical and direct it toward any point of the compass, so that the discharge of the straw or fodder therefrom can be easily controlled.

Mounted to slide upon the straight portion of the pipe-section 49 is the straight telescoping pipe-section 5l,which is just large enough to slide smoothly thereon, and its inner limit of movement is controlled by the collar 52, secured on the section 49. This collar 52 is formed with the arms 53 on its upper side between which passes the elongated strip 54, secured at its outer end to the pipe-section 51 and having its inner end extended along the section 49. Passing to the inner end of the bar 54 is a rope, or preferably a wire cable 55, which extends forwardly beneath a sheave 56, journaled between the arms 53, and then extends rearwardly over a preferably helicallygrooved winding-drum 57, which is journaled in the bearing-bracket 58, bolted to the top of the section 49, just beyond the elbow 50. As seen in Figs. 1 and 3, the flanges of the sheave 56 contact with the upper edges of the U-shaped channel-bar 54, so the sheave 56 also acts as an antifriction roller. As a convenient method of mounting this winding-drum I provide a handle 59 with the horizontal portion 60, which passes through the large bearing-aperture in the ear 61 and has the squared portion 62 immediately adjacent thereto, which cooperates with the squared apertures 63, formed in the hub of the drum. Beyond the squared portion 62 is the reduced circular portion 64, which passes through the small bearing-aperture in the car 65, in which it is secured by any suitable means, such as the cotter-pin 66. The cable is secured to the drum 57, at the center thereof, conveniently by the mechanism shown in detail in Fig. 10, where it will be seen that I form a diagonal recess 67 in the periphery of the drum, through which is passed alink 68, which surrounds the cable 55 and a Wedge 69, which is forced between the inner surface of the drum and the end of the link, so as to draw a portion of the cable 55 into the recess 67 and bind it securely in place. After a few turns around the drum the cable passes on to the inner end of the bar 54, to which both ends of the cable will nowbe seen to be secured. With the construction herein shown and described it will be apparent that by turning the crank 59 in one direction or the other the outer telescoping section 51 will be extended or retracted, as the case may be, by reason of its being secured to the bar 54, which is moved by the operation of the cable. To support the pipe in any desired position of adjustment, I fasten a rope or cable 70 to the cars 53 and extend it back over a sheave 71, which is mounted to swing in any desired position upon the upper end of the mast 72, which upper end is, as seen in Figs. 1 and 7, inclined so as to bring it over the central line of the machine. Its lower end is pivotally secured by a bolt 73 to one of the side bars 74 of the framework of the machine, and it is normally held in its vertical position by means of the strap 75, through the eye of which it passes and which is removably bolted or otherwise secured to the side bar 76 of the machine. The upper end ofthe mast may further be supported against the strain tending to bend it forward by means of the adjustable guy-rod 77, secured to its upper'end, fastened to some convenient projection, as 78, on the machine. When the machine is folded for transportation, as indicated in dotted lines in Fig. 1, the strap is removed and the mast swung down to dotted-line position. The inner end of the cable 70 is wound upon a roller 79, the end of which is shown in the detail view of Fig. 4, which is mounted in suitable bearings formed in the framework and has on the end thereof a gear-wheel 80, which meshes with the gear-pinion 81, secured to the inner end of the winding-handle 82, so that by the ex ercise of comparatively little power the heavy pipe can be raised to any desired position.

To direct the fodder at any desired angle after it leaves the end of the spout, I employ a deflecting apparatus. (Illustrated in Figs. 1 and 2.) This apparatus is preferably located on the short sleeve 83, which is mounted to rotate on the outer end of the section 51 between the stops 84 on the rear side and the flange 85, formed on the outer end of the pipe 51. A pair of strings 86, suitably secured to the sleeve 83, enable me to rotate it to any desired angle. The deflecting-plates are preferably mounted on a short triangular hood 87, which is secured to the sleeve 83 and preferably extends over about? one hundred and eighty degrees thereof. The outer end of the hood has hinged thereto the first deflecting-plate 88, which is of at least as great a width as the diameter of the pipe. A flange or strip 89, of angle-iron, may be secured to the outer end of the hood 87 to stiifen itand also to serve as a stop for the movement of the controlling-lever, to be described, in its outermost position. A similar flange or strip 90 is secured to the outer end of the plate 88, to which in turn is pivoted a similar deflecting-plate 91. cured to one side thereof the lever 92, which is suitably curved to cooperate with the strips 89 and 90, as seen in the two positions shown in full and dotted lines in Fig. 2. This lever 92 has a cord 93 extending back to the machine, from whence the lever 92 can be operated. The lever 92, which is of the first class, is fulcrumed on the end of the swinging bar 94:, the inner end of which is pivoted to the sleeve 83 at any suitable point, such as the end of the hood 87. This lever 94 is, as clearly shown, bent so as to keep it out of the path of the material that may be discharged; A coiled spring 95 connected to suitable lugs on the lever 92'and the fulcrumlever-94, as clearly shown in Figs. 1 and 2, serves to hold the plates 88 and 91 yieldingly at an obtuse angle relative to each other. By pulling the cord 93 it will be seen that these plates can be adjusted between the extreme position shown in full lines in Fig. l and in dotted lines in-Fig. 2, so as to permit the discharge from the end of the pipe to move straight out or to be deflected downward at any desired angle or to be deflected sidewise at the same angle,which result'is ac complished by turning the sleeve 83.

This deflecting-plate 91 has se-.

While I have shown my invention as embodied in the forms which I at present consider best adapted to carry out its purposes,

it will be understood that it is capable of some modifications and that I do not desire to be limited in the interpretation of the following claims, except as may be necessitated by the state of the prior art.

What I claim as new, and desire to secure by Letters Patent of the United States, is

1. In a device of the class described, the combination with the fan-casing having the concave back with the shaft-bearing formed therein, and having radial ribs on the outer surfacethereof bracing said back and supporting the bearing, of the fan consisting of the conical back complementary to said fancasing back, the blades on said conical back,

and the shaft jonrnaled in said bearing, theyoke securedto a pair of the ribs on said back of the fan-casing, and driving means secured to said shaft between the yoke and the bearing.

2. In a device of the class described, the combination with the fan-casing having the concave back with the shaft-bearing formed therein and having radialribs on the outer surface thereof bracing said back and supporting the bearing, of the fan consisting of the conical fan-back complementary to said fan-casing back, the blades on said conical fan-hack,and the shaft journaled in said back, the yoke secured to a pair of the ribs on said back, and the belt-pulley secured to said shaft between said yoke and bearing.

3. In a device of the class described, the

, combination with the fan-casing having the formed therein and having the peripheral groove, the convex front having the eye formed therein and the peripheral groove opposed to the groove on the back, the peripheral strip 15 adapted to fit in said grooves, the eyes formed on the peripheries of the front and back pieces, and the bolts cooperating with said eyes to clamp the peripheral strip between the front and back pieces; substantially as and for the purpose described.

5. 'In a device of the class described, the combination with the fan-casing consisting of the concave back with the fan-shaft bearing formed therein and having the radial ribs thereon terminating in the eyes at their periphery, said back having the peripheral groove therein, the convex front piec'ehaving the eye therein and the radial ribs extending from said eye to the eyes formed in the periphery and having the peripheral groove therein, the peripheral strip 15 having its edges in said grooves, and the bolts passing through the eyes to clamp the peripheral strip in place; of the fan consisting of the conical fan-back complementary to the fan-casing back, the blades on said conical back, and the shaft journaled in said back, the yoke secured to said back,and the belt-pulley secured to said shaft between said yoke and hearing; all combined and cooperating substantially as and for the purpose described.

6. In a device of the class described, the combination with the fan-casing having a short pipe-section projecting therefrom, of the elbow swiveled thereon, and another pipesection having an elbow at its inner end and swiveled onto the elbow-joint, said swiveljoints forming acute angles with the axis of the sections; substantially as described.

7. In a device of the class described, the combination with the faibcasing having a short pipe-section projecting therefrom, said pipe-section being provided at its end with a flange set at an acute angle to the axis of the pipe, of the elbow-joint having the flanges on its ends at acute angles to the axis of the pipe where they cut it and at right angles to each other, another pipe-section having an elbow at its inner end and terminating in a flange cooperating with the outermost flange of the elbow-joint, and means for holding said flanges yieldingly in operative engagement.

8. In a device of the class described, the combination with the fan-casing having a short pipe-section projecting therefrom, said pipe-section being provided at its end with a flange set at an acute angle to the axis of the pipe, of the elbow-joint having the flanges on its ends at acute angles to the axis of the pipe where they cut it and at right angles to each other, another pipe-section having an elbow at its inner end and terminating in a flange cooperating with the outermost flange of the elbow-joint, and means for holding said flanges yieldingly in operative engagement consisting of the sleeves carried at the outer edges of one of each pair of flanges and having the yielding spring-pressed member movable therein to engage the adjacent cooperating flange.

9. In a device of the class described, the combination with the fan-casing having a short pipe-section projecting therefrom, said pipe-section being provided at its end with a flange set at an acute angle to the axis of the pipe, of the elbow-joint having the flanges on its ends at acute angles to the axis of the pipe where they cut it and at right angles to each other, another pipe-section having an elbow at its inner end and terminating in a flange cooperating with the outermost flange of the elbow-joint, and means for holding said flanges yieldingly in operative engagement consisting of the sleeves formed on the edges of one of each of said pair of flanges at right angles thereto, the bolts in said sleeves, the flanges rollers on said bolts overhanging and cooperating with the adjacent cooperating flange, and the helically-coiled spring surrounding said bolt and serving to hold the roller in engagement with its flange.

10. In a device of the class described, the combination with the pipe-section 49, of the section 51 adapted to slide thereon, a cable attached to the section 51, the pulley 56 and the winding-drum 57 carried by said section 49 over which the cable passes, and means for securing said cable to said drum consisting of the recess 67 in the periphery of the drum through which the link 68 passes, and the wedge 69 passing through said link on the interior of the drum and serving to draw the portion of the cable inside the link into the aperture in the drum; substantially as described.

11. In a device of the class described, the combination with the pipe-section 49, of the section 51 adapted to slide thereon, a cable attached to the section 51, the pulley 56 carried by said section 49 over which the cable passes, the winding-drum 57 also carried by the said section 49 and to which the cable is fastened, and means for supporting and rotating said drum consisting of the yoke 58 having the collar 61 with a circular aperture therein on one side and the collar on the opposite side with the smaller circular aperture therein, the crank 59 having the circular bearingport-ion 60 and the reduced circular end 64 and the intermediate portion angular in cross-section and cooperating with the correspondingly-shaped recesses in the elbow of the drum; all combined and 006perating substantially as and for the purpose described.

12. In a device of the class described, the combination with the fan and discharge-pipe connected therewith, of the plate pivoted to the outer end of said pipe, the second plate pivoted to the first plate, and means for moving said plates simultaneously for the purpose described.

13. In a device of the class described, the combination with the fan and discharge-pipe connected therewith, of the plate pivoted to the outer end of said pipe, the second plate pivoted to the first plate, and means for moving said plates simultaneously consisting of the lever secured to the outer plate and pivoted on a swinging fulcrum-lever pivoted on the end of the pipe.

14. In a device of the class described, the combination with the fan and discharge-pipe connected therewith, of the plate pivoted to the outer end thereof, the second plate pivoted to the first plate, the lever secured to the second plate, the swinging fulcrum pivoted to the outer end of the pipe upon which the lever is pivoted, and a spring connecting said lever and said swinging fulcrum.

15. In a device of the class described, the

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combination with the fan and discharge-pipe connected therewith, of the triangular curved hood secured to the outer end thereof, the plate pivoted to the outer end of the hood, the second plate pivoted to the outer edge of the first plate, and means for moving said plates simultaneously; substantially as and for the purpose described.

16. In a device of the class described, the combination with the pipe-section 49, of the section 51 adapted to slide thereon and provided with the bar 54 projecting over the pipe 49, a cable attached to the'section 51, and means for moving said cable to vary the position of the section 51 including the sheave 56 over which said cable passes and with the periphery of which the bar 54 engages.

17. In a device of the class described, the combination with the pipe-section 49, of the section 51 adapted to slide thereon having the channel-bar 54 secured on the end thereof, a cable attached to the bar 54, the winding drum 57 carried by the section 49 over which the cable passes, and the sheave 56 secured to the section 49 and over which the cable passes and with which the edges of the channel-bar .54 cooperate; substantially as described.

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

LOUIS HOLLAND-LETZ.

Witnesses:

JOHN H. MCELROY, SAMUEL K. DENNIS.

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