US755978A - Grain-separator. - Google Patents

Description

'No. 755,978. A PATENTED MAR. 29; 1904.

' m. K. WHITE & e. w; PYLE. 1 GRAIN SBPARATOR. IIIIIIIIIIIIIIII JULY 10, 1902.

N 755,978. PATBNTED MAR. 29, 1904.

J. K. WHITE & G. W PYL};

GRAIN SEPARATOR.

APPLICATION FILED JULY 10, 1902.

N0 MODEL.

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' I. K. .WHITB & G.- w. PYLE. GRAIN SEPARATOR.

APPLIQATION FILED J ULY 10, 1902.

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GRAIN SEPARATOR.

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1101755398. .PATENTBD MAR.29 ,1904,V

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UNITED STATES I Patented March 29, 1904.1

PATENT OEEIcE.

JAMES WHITE AND GEORGE W. PYLE, OF MANSFIELD, OHIO.

GRAIN-SEIPARATOR.

SPECIFICATION forming part of Letters Patent No. 755,978, dated March 29, 1904. I

Application fimi July 10, 1902.

' To all whom, it may concern:

Be it known that we, JAMES K. WHITE and G ORGE W. PYLE, citizens of the United States, residing at Mansfield, in the county of Richland and State of Ohio, have invented certain newand' useful Improvements in Grain-Separators; and we do hereby declare the follow ing 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.

This invention relates to threshing, and more especially to such machines used in that art as are known as separators, although the present specification and drawings describe and illustrate several other parts of the threshingmachine; and the object of the same is to so balance the parts of a separator that their speed of movement may be reduced without sacrificing efficiency, that there may be, therefore, less power required to run the machine, that less vibration will result, and'hence that the whole will have a longer life.

To these ends the present invention consists in the general construction and arrangement of parts as hereinafter more fully described and claimed, rather than in the specific construction of the parts themselves, to which end the latter are referred to in general terms, it being assumed that their specific construction is well known or is at least covered by other patents. I

In the accompanying drawings, Figure I is a left side elevation of this machine. Fig. II is a right side elevation with one form of stacker attached. Fig. III is a central longitudinal section. Fig. IV is a, perspective View of the rear endof the machine. Fig. V is a cross-section on the line 5 5 of Fig. III. I

Mounted on wheels I 1 are the framework 2 and the subsill 3, which carry all the parts hereinafter referred to. I

I is the feed-table; 6, the cylinder, mounted on a shaft 7 8, the concave beneath the cylinder; 9, the web or belt of an elevator running over rollers 10 and 11; 13, the beater, located above the upper inner end of said web and mounted on a shaft 14, and 16 the strawshaker, arranged in two banks mounted on a plurality of double-crank shafts 17 and hav- Serial No. 11 5,072. (No model.)

ing risers 18. This latter is covered by United States Letters Patent already issued, and its details form no part of the present invention further than that it is in two banks whose movements ofi set or counterbalance each other. It is obvious that the straw and chaiI which are passed to the rear by the cylinder and heater are agitated by said shaker, and it is clear that if a stacker is used where marked, 19, it will carry said straw and chaff to a pile, preferably at a remote point.

20 is what we will call the power-shaft. As here shown, it is located beneath the web 9, although-it could be elsewhere. Further, as shown in the accompanying drawings, the

several parts of the machine are connectedby belting (it might be gearingor otherwise) with some shaft in such a manner that the proper speed of movement will be given them in the proper direction, and in view of the fact that machines of this type are well known we have not considered it necessary to further describe the manner of applying or conveying power to these various parts. The shaft 20 has double and oppositely-disposed cranks, preferably one pair near. each end. In Fig. IH the upper pair of cranks 21 is connected by pitman-rods 22 with the shoe 23, which is mounted on hangers 24: upon the subsill 3 just in rear of the delivery-auger 25 and forward of the tailing-auger 26. The former delivers into a suitable receptacle, as is well known, and usually stands just in rear of the fan 27, while theauger 26 delivers into the tailing-elevator 28, which in practice returns the mixed grain and 'chafl to the cylinder for renewed treatment. The lower pair of cranks 30 is connected by pitmari-rods 31 with the return-pan 41, which is supported uponhangers 42, and all parts can be and are nicely proportioned, so that the weight of the shoe and the return-pan counterbalance that of the grain-pan and chaffer, while (the throw of the upper and lower cranks of the shaft 20 being the same) the movements of these connected parts are the same in distance. Hence it follows that while one pair of parts is traveling in one direction to a certain degree another pair of parts is traveling in the opposite direction to the same degree, and the wellknown tendency of a crank-shaft to have periods of its revolution impeded by the stopping and starting of the mechanisms connected therewith is overcome. This we consider an important feature of our invention.

The cylinder, beater, and web, while forming no part of the present invention, nevertheless are operated by rotary movements, or at least not by crank movements, and need no counterbalance. The straw-shaker being in two banks, mounted on double-crank shafts 17 has the same resultz'. 0., the forward movement of one bank overcomes the rearward movement of the other, and the double cranks have ever the same resistance. Hence all parts of this machine are either purely rotary or else counterbalanced in their reciprocations or oscillations.

It is not inconsistent with the present invention that the moving parts should slide nor is it material whether they be mounted on pendent hangers or risers, whereby they work over their supporting centers, to which end the word hangers herein may have a double or even a triple meaning. The exact construction of parts is immaterial, as also is the proportion, sizes, shapes, and materials thereof.

In operation the material to be threshed is fed in over the feed-table 4, passes between the cylinder 6 and concave 8, drops onto the web 9, and is beaten by the beater 13, and said web or elevator raises and carries it to and delivers it onto the straw-shaker 16, which, as before stated, is covered by other patents. Hereon it is tossed and manipulated, the straw and chaff of coarser grade finally passing off its rear end, possibly onto a stacker 19, if one be provided. Meanwhile the fine chaff and the grain fall through the shaker onto the grain-pan 32 at the front or onto the returnpan 41 at the rear, by which it is delivered into the grain-pan.3'2. The latter, by reason of the teethwith which it is provided and the agitation to which it is subjected, delivers the material into the chafi er 35, through which the grain falls into the shoe 23, while the chafi is blown out by the fan 27 in theusual manner. The cleaned grain is delivered by the auger 25 into sacks or other receptacles, while the mixed grain and fine chafi' is delivered by the auger 26 into the tailing-elevator 28, by which it is returned for renewed operation in the customary manner.

What is claimed as new is- 1. In a grain-separator, the combination; of a grain pan, a chafi'er pivotally connected thereto. supports for these parts, a doublecrank shaft, connections between one of the cranks thereof and said parts; a shoe, connections between said shoe and the other crank, and connections between the latter and another moving part of the separator whichwith the sl1oe-counterbalances the grain-pan and chaffer.

2. In a grain-separator, the combination; of a grain-pan, a chaffer pivotally connected thereto, supports for these parts, a doublecrank shaft, connections between one of the cranks thereof and said pan; a shoe, a returnpan, supports for these parts, and connections between each of them and the other crank, as and for the purpose set forth.

3. In agrain-separator, the combination; of a grain-pan, a chaifer connected thereto, a double-crank shaft, one pitman-rod connecting one of the cranks thereof with the pan; a return-pan above the chaf'fer, another pitmanrod connecting the return-pan with the other crank, and connections between the latter and a moving part of the separator whichwith the return-pancounterbalances the grainpan and chaffer.

4. In a grain-separator, the combination including the straw-shaker, the driving mechanism, and a double-crank shaft; of a returnpan standing next under the shaker, a grainpan, a chafier attached thereto and standing next under the return-pan, a shoe next under the chafi'er, and one pitman-rod between the grain-pan and chafi'er and one crank, and two pitman-rods between the return-pan and shoe and the other crank, whereby said pairs of parts counterbalance each other.

In testimony whereof we aflix our signatures in presence of two witnesses.

JAMES K. WHITE. GEORGE W. PYLE. Witnesses;

M. J. CoBnAN, A. F. BLACK.

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