US1836421A - Automatic oscillating windstacker hood - Google Patents

Description

1931- w. H. WINTER AUTOMATIC OSCILLATING WNDSTACKER HOOD Filed Feb. 24, 1950 Mzzww Patented Dec. 15, 1931 .WILLIAM H. win'rnnor BOYDEN, IOWA .AUTOMATIG OSCILLATING wmnsrncxnn noon Application filed'lebruary 24, 1930. Serial N0.'430,648.

Theobject of my invention is to provide an automatic oscillating windstacker hood which is simple, durable and comparatively inexpensive to manufacture.

.1More, particularly,it is the object of my invention. to provide an automatic oscillating means for the hood of a windstacker'ofa threshing machine so that a continuous oscillating. motion can be imparted to the. hood m for directing the. straw angularly toward and away from the machine.

A further object is to provide a hood oscillating mechanism consisting of a yoke-memher pivoted to the windstacker and coactable with a cam orother means for imparting'oscillating motion to the hood of the windstacker.

Still another object is to provide adjusting means'so that either the degree of oscillating travel of the hood or the position of such travel may be changed as desired.

Another object is to provide means for rendering the device inoperable when it is desired to stop the oscillation of the hood.

With these and other objects in view my invention consists in the construction, -arrangement' and combination of the various parts of my 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 is a plan view of a windstacker showing my hood oscillating mechanism applied thereto. s

Figure 2 is a side elevation of the same. Fi re 3 is a perspective view of a yoke mem gr included in the mechanism of the device.

Figure 4 is a perspective view of a lever.

Figure 5 is a perspective view of a cam and Figure 6 is an enlarged-detailed sectional View on the line 6-6 of Figure 2 showing a pivotal connection for portionso-t the device.

On the accompanying drawings I have used the reference numeral 10 to indicate generally the housing of a threshing machine. A windstacker blower housing is in dicated at 12, a windstacker at 14 and a hood -56 at 16. The windstacker l4 usually consists ed on the .windstacker 14 toa of .a telescopic elbow-14a, a primary tube 14?) and a secondary tube 140 telescopically mounted with respect tothe tube1 4bp The hood 16 usually consistsof-a pluralityof sections 16a, 16b and 16c'telescop-icallyarranged in the form of an-elbow. The sectionsj16a, l6bxand l6care pivoted at118 and-*aspring 20 is provided for constraining them toward extended position. i A ringgear22 ofnthe worm type is mountand coacts witha worm .24. The worm 24 is mountedon'a shaft 26 which extends into gear'housing 28. A drive shaft-30 also extends'into' the gear housing "28and is operatively connected therein with the shaft 26 for imparting-a plurality of revolutions thereto, first in one direction and then in another for oscillating the windstackerl i on avertical-axis.-' The drive shaft 30. is provided with a pulley 32 which is belted by a belt 34 to any 1 0- tating shaftof'the threshing machine/10. 0n the drawingsait is illustrated as extending pulley .36 on the windsta'cker blower shaft. Y The windstacker 14 is pivotcd at 38 and the outer end may be manually adjusted as to height. by means of a hand wheel 40 operating a..-worm1 geared drum 42 on which a cable 44 is wound. In connection with a'compensating5bar48 mounted onithe section 14?) of the windstacker 14 a pivotally'mounted; adjusting handle is provided. iThi'shandlemay be swung to various positions andklocked relative to asector-52- 1 f A rope 54 extends from thelever 50: around a pulle 56 on the outerendofi the compensating ar 48, over a pulley 58 on thesection 1400f the. windstacker 14 and is ordinarily connected witha bracket 60 on the hood '16 of the windstacker. The foregoing construction refers to the ordinary typeof-threshing machineatpresent inextensive use. l-will now' describe my particularinvention as 'applied to such'awindstacker. n l My invention includes a semiecircular yoke member 62 having inclined arms 64 adapted to be pivota-l'ly; connected with thelower end of the elbow 14a of the windstacker 14." In Figure 6 I haveillustrated a pivotal'connecibc tion in which a bolt 66 extends through the elbow 14a and a spacer 68 is secured thereon by a nut 70. Washers 7 2 are provided for reinforcement purposes and a washer 74 serves as a flange.

One of the arms 64 of the yoke member 62 is pivoted on a reduced portion of the spacer 68. A sector member 7 6 is riveted as at 78 to the arm 64 and is likewise pivoted on the reduced portion of the spacer 68. A lever 80 is also pivoted on this reduced portion. The other arm 64 is pivoted on a similar spacer having a shorter reduced portion as there are no otherparts pivoted on such reduced portion (see Figure 1).

The lever 80 is provided with a lug 82 fittingover the edge of the sector 76 to resist a set screw 84 which may be tightened after the lever 80 has been adjusted as desired with respect to the sector 76. The rope 54 in my installation extends over a pulley. 86 on the bracket 60, over guide pulleys 88 and terminates in a hook 90 which is selectively co-.

actable with any one of a plurality of openings 92 formedin the lever 80. An opening 94 in the yoke 62 is also provided for the hook 90, the pur ose of whichwill hereinafter be fully'descri ed.

' In connection'with the yoke member 62 I provide a cam 96 adapted to be secured to the shaft 26 and to coact with the yoke member 62 as the shaft 26 rotates whereby the yoke member 62 may be raised and lowered at each revolution of the shaft 26 in either direction.

Practical operation 2, it will be obvious that a half revolution of the shaft 26 will rotate the cam 96 and allow the spring 20 to pull the section 160 of the hood 16 to the dotted line position for blowing straw in the direction of the arrow 98. When the cam 96 again assumes the position illustrated, the straw will be blown in the direction of the arrow 100. Thus as the shaft 26 continues to rotate, the hood 16 will be automatically oscillated-once each revolution of the shaft. 1

When it is desired to decrease the degree of oscillation, the hook 90 can be hooked in an opening 92 of the lever closer to the pivot bolt 66. When it is desired to alter the position of oscillating travel of the hood 16 without altering'the throw thereof, the set screw 84 maybe loosened, thelever 8O moved pivotally as desired and the screw 84 again tightened. The adjusting device 5052 is ordinarily provided for merely changing the position of the hood 16 when my oscillating device is not used but it is desirable to retain it on the machine so that it can still be used for adjusting the hood when it is not desired to automatically oscillate the hood.

I have provided a meansfor stopping the oscillation of the hood 16 and at the same time maintaining the yoke member 62 in a position where the cam 96 does not coact therewith. This means consists of hooking the hook in the opening 94 whereupon the spring 20 will maintain the yoke member 62 in its raised position whereby the cam 96 will not coact with it. The adjusting device 50-52 may then be used for setting the hood 16 where desired H *The purpose'of the inclined arms 64 is so that when the windstacker 14 is swung a half revolution from the "position shown on the drawings for the-purpose of moving the threshing machine from one job to another, the semi-circular member 62 will cease to coact with the cam96 as it will be on the opposite side of the vertical axis of the wind stacker. Then when the windstacker is again brought into stacking position, the inclined arms will cause the yoke member 62 to be raised onto the cam 96 for proper coaction therewith.

The yoke member 62 beingsemi-circular makes it possible'for proper coactionwith the cam 96 during the oscillating movement of the windstacker-14 on its vertical axis. This movement of course is imparted to it automatically from the. shaft 26 as before described. It will be found that by the'u'se of my device, a better. straw stack can be formed as the straw is distributed .over a wider area and packs better without the tendency to topple over as when the hood 16 is-set in one position.

Some changes such as the substitutionof other driving meansinstead of the cam 96 may be made in my device and other mechanically equivalent parts may be substituted instead of those shown on the drawings without departing from the real spirit and purpose of myinvention, and it is my intention to cover by my claims, any modified forms of structure ,or use of mechanical equivalents, which may be reasonably included within their scope. I

I claim as my invention: 1 i

1. For use with an oscillatable 'windstacker having an oscillatable hood and mechanism for oscillating saidwindstacker including a shaft, a mechanism for automatically oscillating said hood comprising a semi-circular yoke pivoted 'to' said windstacker, a cam on said shaft for coaction with said yoke and anoperative connection between-said yoke and said hood. j

.2. For use with an'oscillatable windstacker having an 'oscillatable hood and mechanism for oscillatingsaid windstacker including a shaft, a mechanism for automatically oscillating said hood comprising asemi-circular yoke pivoted to said wind-' stacker, a cam on 'saidfshaft'for fcoaction with said yoke and an operative connection between said yoke and said -hood,'said operative connection comprising a lever pivoted to the yoke, means for looking it in any position to which it may be pivoted and a connecting member between the lever and the hood. I

3. For use with an oscillatable windstacker having an oscillatable hood and mechanism for oscillating said windstacker including a'shaft, a mechanism for automatically oscillating said hood comprising a semi-circular oscillatable yoke pivoted to said windstacker, means on said shaft for coaction with said yoke whereby to oscillate the yoke as the shaft rotates regardless of the position of the yoke relative to said means and an operative connection between said yoke and said hood.

Des Moines, Iowa, February 6, 1930.

' WILLIAM H. WINTER.

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