US985962A - Governor for band-cutters and feeders. - Google Patents

Description

F. J. W001). GOVERNOR FOB. BAND GUTTBRS'AND PEEDERS. APPLICATION FILED JUNE 1, 1909.

Patented Man-7,1911.

3 EHEETS-SHEBT 1.

n15 NORRIS PETERS Ccv. \VASHINGTDN, n. c

P. J. WOOD. GOVERNOR FOR BAND GUTTBRS AND FEEDERS.

APPLICATION FILED JUNE 1, 1909.

3 SHEETS-EHBET 2.

Patented Mar. 7, 1911.

witnesses THE NnRnls PETERS co.,wn:HlNc1oN. 11.5

F. J. WOOD. GOVERNOR FOR BAND OUTTERS AND FEEDERS.

APPLICATION FILED JUNE 1, 1909.

Patented Mar. 7, 1911.

3 SHEETS-SHEET 3.

l uenior FRANZ J. WOOD, OF DES MOINES, IOWA.

GOVERNOR FOR BAND-CUTTERS AND FEEDERS.

Specification of Letters Patent.

Patented Mar. '7, 1911.

Application'filed June 1, 1909. Serial No. 499,303.

To all whom it may concern:

Be it known that I, FRANZ J. VVoon, a citizen of the United States, residing at Des lWloines, in the county of Polk and State of Iowa, have invented a certain new and useful Governor for BandCutters and Feeders, of which the following is a specification.

The object of my invention is to provide means of simple, durable, and inexpensive construction for automatically governing the speed of the straw feeding mechanism in proportion to the thickness and compactness of the layer of straw at the delivery end of the device, and, further, to provide means whereby the operator may readily, quickly and easily adjust the governor to deliver bundles of grain either faster or slower.

My invention consists in the construction, arrangement, and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which- Figure 1 shows a side elevation of a band cutter and feeder having my improved governor applied thereto. Fig. 2 shows a central, longitudinal, sectional view of same. Fig. 3 shows an enlarged, detail, sectional view of the conveyer shaft and the means for throwing same into or out of operative engagement with the driving sprocket wheel,

and Fig. 4 shows an inverted, perspective view of the slide-bar for throwing the slidebolt out of engagement with the driving sprocket wheel.

Referring to the accompanying drawings, I have used the reference numeral 10 to indi cate the frame of a band cutter and feeder, 11 the shaft of the conveyer, 12 the sprocket wheels on said shaft, 13 the conveyor proper mounted on said sprocket wheels, and 14 the shaft of the band cutting knives. These parts are all of the ordinary construction and operate in the ordinary manner.

Below the delivery end of the conveyer is a feed pan 1.5, inclined downwardly, and above the feed pan is a stationary shaft 16 on which a number of hangers 17 are piv otally mounted. At the lower end of each hanger 17 is an oscillating feed bar 18 having teeth 19 on its under surface and a downwardly inclined fork 20 at its lower end adjacent to the delivery end of the feeder.

Mounted in the sides of the feeder frame is a crank shaft 21 having crank arms 22 thereon, each of said crank arms being pivotally connected with one of the feeder bars 18. The said shaft is slidingly mounted at its ends in vertical slots 23 formed in the sides of the feeder frame so that the delivery ends of said feeder bars may be raised throughout a limited distance by the pressure of the straw upwardly against them, and they will automatically lower by gravity when the straw is removed from beneath them. By this arrangement, it is obvious that when the crank shaft 21 is rotated, the material on top of the feed pan 15 will be engaged by the forked ends 20 and the teeth 19, and as said bars are oscillated, the material will be forced downwardly and toward the delivery end of the machine. Said forks will also serve to retard the movement of bundles of straw from the delivery end of the machine when they are in engage ment with the straw so that the threshing cylinder can not withdraw the straw in large quantities from the delivery end of the feeder. By this arrangement, it is further obvious, that if a relatively thick layer of straw is delivered to the feed pans in a loose, dry condition, the feeder bars will penetrate it a considerable distance and the straw will, therefore, elevate the feeder bars only a slight distance; whereas if a relatively thinner layer of tightly packed or wet straw is delivered to the feeder pan, it will cause the feeder bars to be elevated a greater distance, that is to say, by having the feeder bars capable of up and down movement, the distance to which they are elevated by the straw will depend not. only on the thickness of the layer of straw, but on the compactness and the amount of moisture contained by it.

I have provided means for driving the band cutter shaft, the conveyer shaft, and the feeder bar shaft as follows: Fixed to the band cutter shaft is a sprocket wheel 24:. Fixed to the feeder bar shaft is a sprocket wheel 25, and loosely mounted on the shaft 1.1 of the conveyer is a sprocket wheel 26. A sprocket chain 27 is passed around the sprocketwheels 24 and 25 and adjacent to one side of the sprocket wheel 26. This sprocket chain is held against the sprocket wheel 26 by means of a chain tightener sprocket wheel 28. In this way all of the sprocket wheels are driven in unison during the operation of the machine, but inasmuch as the sprocket wheel 26 is loose on the shaft 11, the said shaft 11 will not be driven unless the sprocket wheel 26 is operatively connected with it, therefore, when there is an excessive quantity of straw upon the conveyer 13, the covering device hereinafter described will permit the shaft 11 to stand idle without affecting the operation of the other shafts, so that the band cutter knives will operate and the feeder knives will also operate until the excessive quantity of straw has been reduced.

The covering device proper comprises a disk29 keyed tothe shaft 11 and containing a slide-bolt 30. This slide-bolt has an upwardly projecting lug 31, and it also contains a recess in which an extensible coil spring 32 is inserted to normally project the slide-bolt toward the sprocket wheel 26. This sprocket wheel 26 is provided with a number of openings 33 thereinso positioned as to receive the slide-bolt 30, the arrange ment being such that when there is nothing to hold the slide-bolt away from the sprocket wheel, the spring 32 will project it toward the 'sprocket wheel and as soon as one of the'openings 33 comes into line with the slide-bolt, the slide-bolt will enter the hole and thus cause the disk 29 to rotate in unison with'the sprocket wheel.

Mounted above the disk 29 is a guide-block I 34 in which a slide bar 35 is mounted for up i and down movement. This guide-block 34 is fixed to the machine frame by means of a bolt 36, and it is provided at its upper end with a lug 37 having a screw threaded open ing therein. Below the lug 37 is a lug 38 having a smooth opening therein.

I Slidingly mounted in the machine frame isan upright rod 39 having a crank 40 at its upper end .and having its lower end screw threaded at 41, said screw threaded vportion being inserted in the screw threaded lug 37.

Mounted on the lower end of the rod 39 is an extensible coil spring 42 with its lower end in engagement with the guide lug 34 and its upper end in engagement with the lug 37 to thereby normally hold the slidebar 35 to its upward limit so that the rod 39, when moved downwardly, will be opposed by the spring 42. On the lower end of the slide-bar 35 is an arm 43 extended outwardly and downwardly and having its lower end inclined at 44, as shown inFig. 4, said parts being so arranged that when the slide-bar 35 is moved downwardly, it will-engage the lug'31 of the slide-bolt 30 and force it inwardly away from the sprocket wheel 26 to withdraw said slide-bolt fromengagement with the sprocket wheel, and when the downwardpressure upon the slide-bolt 34 is removed, thespring 42 will elevate it above the lug 31.

Mounted within the interior of the band cutter and feeder is a rock shaft 45 having layer of straw.

fixed thereto, one or more arms 46 extended downwardly and toward the delivery end of the machine and resting upon the shaft 21. On one end of thisshaft 45, on the exterior of the machine, I have fixed an arm 47 extended rearwardly and having a forked end placed in a grooved collar 48, fixed to the shaft 39, as shown in Fig. 1. By this arrangement, it is obvious that the shaft 39 may be freely rotated by the crank 40 without interfering with the arm 47, and further, that when the shaft 21 is raised, it will cause the arm 47 to move downwardly and thus move the rod 39 downwardly, and when the shaft 21 moves downwardly, the rod 39 and arm 47 will be moved upwardly by the spring 42.

In practical use and assuming that the sprocket chain 27 is being operated and that a layer of straw is being delivered from the machine, and assuming, further, that the straw enters the machine in an excessive quantity, then it will cause the feeder bars 18 to be elevated which will carry the shaft 21 upwardly. This will raise the arms 46 and lower the arm 47, thus forcing'the rod 39 downwardly. Said rod is secured to the slide-bar 35 which is also forced downwardly into the path of the lug 31. The disk 29 that carries said lug 31 is being rotated and, therefore, when the lug 31 strikes upon the lower end of the arm 43, the inclined portion 44 of said arm will force the lug 31 in a direction away from the sprocket wheel 26, thus permitting the sprocket wheel 26 to rotate without rotating the disk 29 and the shaft 11. The parts will be then held in this position during the time that the band cutting knives and the feeder bars are operating to reduce the thickness of the Vhen this has been ac complished, the feeder bars will drop by gravity and thus permit the spring 42 to raise the slidebar35, whereupon the spring 32 will force the slide-bolt 3O outwardly until it enters one of the openings 33 in the sprocket wheel 26, whereupon the shaft 11 will again be rotated in unison with the sprocket wheel 26. It is obvious that at any time during the operation of the machine, the position of the slide-bar 35 may be adjusted by means of the crank 40 so that, when desired, the device may be set to position for feeding a greater or a less quantity of'straw without in any way interfering with the automatic operation of the One of the advantages of governing the feed of the straw by means of the up and down movements of the feeder bars is thatsaid feeder bars will be moved upwardly only at such times as the layer of straw is both excessively thick and excessively dense I or tightlypacked, for if the layer of straw is loose, then the feeder bars will simply enter into the layer of'straw farther than when the straw is tightly packed, and this will not elevate the feeder bars, and hence, the conveyer will not be stopped, but if the layer of straw is dense and tightly packed, then a comparatively thin layer will elevate the feeder bars sufficiently to stop the conveyer.

Another valuable feature of the governor is that the parts are of extremely simple, durable and inexpensive construction and are so arranged that access may be readily and easily had to any of the operative parts thereof for purposes of repair or replacement.

I claim as my invention.

1. In a device of the class described, the combination of a frame, a power shaft, a sprocket wheel thereon, a crank shaft rotatably mounted and capable of up and down movement, feeder bars mounted on said crank shaft, a rock shaft mounted in the frame, an arm fixed to the rock shaft and resting on top of the crank shaft, a rod mounted in the machine frame and having a crank thereon, a grooved collar fixed to said rod to receive said arm, a slide bar having said rod screwed to it so that a rotation of said rod will adjust the position of the slide bar relative to the rod, a spring arranged for normally elevating the slide bar, a conveyer shaft, a disk fixed thereon, a slide bolt mounted on said disk and having a lug thereon, a spring for normally projecting the slide bolt outwardly from the face of the disk, said slide bar and said lug on the slide bolt being so arranged that when the slide bar is moved toward the disk its lower end will be engaged by said lug and the slide bolt will be forced inwardly away from the face of the disk, a sprocket wheel rotatably mounted relative to the conveyer shaft and adjacent to the disk, and having a number of openings to receive said slide bolt, and a sprocket chain connecting the power shaft, the crank shaft and the conveyer shaft for driving them in unison.

2. In a device of the class described, the combination of a frame, a vertically movable crank shaft therein, feeder bars mounted on said crank shaft, a conveyer shaft, a. sprocket wheel loosely mounted on the conveyer shaft and having openings therein, means for operatively connecting the sprocket wheel on the conveyer shaft with said crank shaft, a disk fixed to the conveyer shaft, a spring actuated slide bolt car ried by the disk and capable of being inserted into the openings in the sprocketwheel, a slide bar capable of movement to a position either into or out of engagement with the slide bolt in the disk, a rod mounted on the side of the frame and having its lower end screwed into the slide bar, where by the slide bar may be adjusted vertically relative to the rod, a crank on said rod for manually turning it, and means interposed between the crank shaft and said rod for moving said rod vertically in unison with the up and down movements of the crank shaft, for the purposes stated.

3. In a band cutter and feeder, the combination of a frame, a driving shaft, band cutter knives thereon, a sprocket wheel thereon, a series of oscillatory feeder bars having toothed lower edges and forks at the lower ends thereof, a crank shaft rotatably mounted and capable of up and down movement, and having one of said feeder bars pivoted to each crank, a sprocket wheel on the crank shaft, a rock shaft mounted in the frame, an arm fixed to the rock shaft and resting on top of said crank shaft, an arm fixed to said rock shaft and having a forked end, a rod mounted in the machine frame and having a crank thereon, a grooved collar fixed to said rod to receive said forked arm, a slide-bar having said rod screwed to it so that rotation of said rod will adjust the position of the slide-bar relative to the rod, a spring arranged for normally elevat ing the slide-bar, an inclined extension on the lower end of said slide-bar, a conveyer shaft, a disk fixed thereon, a slide-bolt mounted in said disk and having a lug thereon, a spring for normally projecting the slide-bolt outwardly from the face of the disk, said slide-bar and said lug on the bolt being so arranged that when the slidebar is moved toward the disk, its lower end will be engaged by said lug, and the slide bolt will be forced inwardly relative to the face of the disk, a sprocket wheel rotatably mounted relative to the conveyer shaft and adjacent to the disk and having a number of openings to receive said slide-bolt, a sprocket chain arranged in operative engagement with the sprocket wheels on the knife shaft, a crank shaft, and a conveyer shaft for driving them in unison.

Des Moines, Iowa, May 7, 1909.

FRANZ J. WVOOD.

Witnesses MILDRED B. GoLDIzEN,

N ELLIE M. TAYLOR.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents, Washington, D. G.

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