US1194788A - Gbaist-sepabatob - Google Patents

Description

G. O. RUND.

GR AIN SEPARATOR.

APPLICATION FILED OCT. 1914.

1,1 94,788. PatentedAug. 15,1916.

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BY HIS ATTORNEYS wwgdw @Mm G. O. 'RUND GRAIN SVEPARATOR. APPLICATION men OCT. 8. 1914.

Patented Aug. 15, 1916.

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GUSTAV O. RUND, OF CHRISTINE, NORTH DAKOTA.

GRAIN- SEPARATOR.

Application filed October 8, 191 1.

To (ZZZ whom it may concern.-

Be it known that I, Gusrav O. RUND, citizen of the United States, residing at Christine, 'in the county of Richland and State of North Dakota, have invented cer tain new and useful Improvements in Grain- Separators; and I do hereby declare the fol lowing 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.

My invention has for its object to provide an improved grain separator, especially adapted for use in separating wild oats from grain; and, to this end, generally stated, it consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

In the accompanying drawings, which illust ate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings, Figure 1 is a plan view of the improved separator, some parts being broken away; Fig. 2 is a right side elevation of the improved separator; Fig. 3 is a front elevation of the same, some parts being broken away and some of the exposed parts being shown in section; Fig. 1 is a longitudinal vertical section taken on the line of m of F 3; Fig. 5 is a detail vie v, partly in elevation and partly in section, taken on the line 00 of Fig. 8, on an enlarged scale; and Fig. 6 is a view principally in elevation, with some parts sectioned on the line 00 0c of Fig. 5.

The fixed frame of the improved separator comprises a pair of front posts 1 and rear posts 2, connected in rectangular arrangement by side and end bars 8. In the upper portions of the rear posts 2 is journaled a transverse horizontal shaft a. Hung on this shaft t for vertical swinging movement is an elevator frame 5. The shaft 4: extends through the side plates of the elevator frame 5 rearward of their transverse centers, thereby causing the forward or heavy end of said frame to swing downward under the action of gravity. To adjustably support the elevator frame in different oblique positions is provided a depending hanger bar 6, rigidly secured at its lower end to the intermediate portion of a transverse bar 7. The ends of this bar 7 are reduced to afford trunnions which are journaled inthe side plates of the elevator frame Formed in the hanger bar 6 is a plurality of longitudinally spaced Specification of Letters Patent.

Patented Aug. 15, 1916.

Serial No. 865,653.

- set in different angular adjustments.

In the lower end of the elevator frame 5 is journaled a horizontal idle roller 10 and journaled in open seats in the upper end of said frame is a driven roller 11. Mounted to run over the rollers 10 and 11 is an end less elevator apron 12, having a fuzzy upper working surface, ,ich as canton flannel. The purpose of this fuzzy surface, as is well known, is to catch the wild oats and poor grain and separate the same from the other grain.

Keyed to the right hand end of the shaft 1 is a relatively large sprocket wheel 13 and a relatively small sprocket wheel let. The sprocket wheel 13 is provided with a hand crank 15, by which the shaft i: is rotated. A sprocket chain 16 runs over the sprocket wheel l l and an alined sprocket wheel 17, keyed to the upper roller 11. Journaled in depending edge extensions 18 of the side plates of the elevator frame 5, is a fan, comprising crossed arms 19, intermediately secured to the shaft of said fan, and horizontal bars 20 secured to the outer ends of the arms 19. This fan is so mounted that the outer longitudinal edges of its bars 20 engage the under run of the apron 12 and act as scrapers to remove the wild oats therefrom. The fan is driven in the direction of the arrow marked on Fi at, by a sprocket chain 21, which runs over the sprocket wheel 13 and an alined sprocket wheel 22', keyed to the shaft of said fan. A deck 23, underlying the apron 12, extends from the upper end of the frame 5 downward over the extensions 18 and terminates in a spout 2st, into which all grain and wild oats, carried upward over said apron, is delivered and carried to one side of the separator.

Bigidly secured to the side plates of the elevator frame 5 is an open bottom hopper 25, arranged to hold the grain to be separated and deliver the same onto the upper run of the apron 12, intermediately between the rollers 10 and 11. A gate 26 is mounted in the bottom of the hopper 25 to regulate the flow of grain onto the apron 12. This gate 26 is operated by a lever 27, pivoted to the hopper 25 and intermediately connected to the said gate by a link 28.

Retarding plates 29 are provided to pre vent the grain from rolling off from the apron 12 before the wild oats and poor grain has a chance to adhere to the fuzzy working surface of said. apron. These retarding plates 29 extend transversely of the apron 12, one in advance of the other, below the point where the grain is delivered from the hopper 25 onto the apron, and are rigidly secured to a pair of arms 30. Said arms are pivotally secured to the inner faces of the side plates of the frame 5 and extend upward between the said plates. Obviously, by raising and lowering these arms, the lower longitudinal edges of the retarding plates 29 may be set in different adjustments with respect to the upper run of the apron 12 to regulate the flow of grain thereunder. To prevent the upper run of the apron 12 from sagging too much under the weight of grain delivered thereon from the hopper 25, is provided a transverse rod 31 extended between the upper and lower runs of said apron and secured at its ends to the side plates of the elevator frame 5. T 1e frictional engagement of the arms 30 with the side plates of the elevator frame 5 is sufficient to hold the retarding plates 29 in different set positions.

Operation: The operation of the improved grain separator may be briefly stated as follows: The grain to be separated is .placed in the hopper 25, and the crank 15 turned in the proper direction to cause the upper run of the apron 12 to move upward. The flow of grain onto the apron 12 is regulated by the gate 26 and is prevented from rolling off from the apron too quickly by the retarding plates 29. The wild oats and poor grain will be carried upward on the apron 12 and all the loose grain will be delivered onto the deck 23. The wild oats and small grain held by the fuzzy surface of the apron will be blown or scraped therefrom by the blades of the fan and delivered into the discharge spout 24. All good grain will roll downward on the apron 12, under the retarding plates 29, and be delivered into a receptacle or onto the floor. The inclination of the apron 12 may be varied, at will, to secure the best separation of the grain, by adjusting the hanger bar 6 on the stud 9.

The above described invention has, in actual usage, proven highly efficient for the purpose had in view.

\Vhat I claim is 1. A separator of the kind described, in cluding a traveling endless apron, having an upwardly moving inclined surface, means for distributing grain onto said upwardly moving inclined surface, a pair of arms pivotally secured for swinging movement toward and from said upwardly moving inclined surface, and a g 'ain retarding plate secured to the free ends of said arms.

2. A separator of the kind described, including a traveling endless apron, having an upwardly moving inclined surface, means for distributing grain into said upwardly moving inclined surface, a pair of arms pivotally secured for swinging movement to ward and from said upwardly moving inclined surface, and a pair of grain retarding plates secured to said arms, one in advance of the other, at points below the delivery of the grain onto said upwardly moving inclined surface.

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

GUSTAV O. RUND.

lVitnesses:

I. J. STRAND, It. XV. Eco.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G.

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