US523423A

US523423A - Thrashing-machine

Info

Publication number: US523423A
Authority: US
Publication date: 1894-07-24
Anticipated expiration: 1911-07-24

Description

(No Mdel.) 2 Sheets-Sheet 1. W. H.-BOWBN. THRASHING MACHINE.

No. 523,423. Pate-ted July 24, 1894.

WITNESSES: YINVENTOR Z $771M BY M ATTORNEY (No Model.) 2 Sheets-Sheet"? W. H. BOWEN. THRASHING MACHINE.

I No. 528,423. Patent ed July 24, 1894.

WITNESSES:

UNITED STATES P TENT Orrrcn.

WILLIAM H. BOWEN, OF WISE, ASSIGNOR TO THE KEYSTONE MANUFAC- TURING COMPANY, OF LANSING, MICHIGAN.

THRASHlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 523,423, dated July 24, 1894. Application filed January 12. 1892. Renewed April 8,1898. Again renewed January 13,1894- A Serial No.496,8l4- (No model.)

ing drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to the separation in thrashing machines; its object being to'provide means for a more thorough separation of the grain and straw.

Figure 1 is a side sectional view of my in vention. Fig. 2 is a front sectional view on the line X X of Fig. 1. Fig. 3 is a side eleva tion of the pitcher's 10 10. Fig. 4 is a top plan view'of one of the separating devices.

Fig. 5 is an enlarged front sectional view showing crank on line g g of Fig. 1. Fig. 6 is a bottom perspective of the shakers showing section connections. Fig. 7 is an enlarged perspective of same.

In the drawings A is the frame work of the machine, B the cylinder, and B the concave.

O is the grain carrier. D the elevator, E and E the grain boards or pans, and F the fanning mill.

H is a hood at the top of the frame in the rear of the cylinder against which the straw and wheat are thrown as it leaves the cylinder. The wheat and straw are deflected by the hood H upon the four straw shakers, which are each divided into two sections 1 and 1, 2 and 2', 3 and 3', 4 and 4'. The front section is about one-fifth the length of the rear sections. Upon the upper edge of these shakers I form teeth having a rearward slant on their front edges, and an abrupt fall in the rear. Across the front section of each shaker I secure the board 11', 1l,slanting backward same as the teeth but extending higher than the teeth. As the straw leaves the cylinder it strikes these boards 11',11 and is thrown up against the hood H.

10, 10, 10, are adjustable forked pitchers secured to the straw shakers, particularly the. rear section, and are intended to pick up the straw and throw it along, thus helping in the separation. They are pivoted at their front end 19, through which a bolt S passes. By loosening the nut on the bolt S the pitchers may be adj usted up or down as required. Fig. 4 shows the construction of these shakers, 1, 2, 3, 4, they are of the width required, and have a slatted bottom, 15, except the front and rear which maybe perforated, as at 16. ,5 and 8 are crank shafts, extending from one side of the machine to the other. Said shafts are provided with two series of oppositely, alternately projecting cranks, a, b, o, d, to which are connected the front ends of the respective sections of the shakers, 1, 2,3, 4. It is obvious that the motion of the front ends will be circular and reciprocating, and alternate. The two sections 1 and 1 are connected by loose straps 20, which are secured to the front section and pass through slides 20 on the rear section. These slides are large enough so there will be no binding between the sections by reason of the difierent motion in the rear end of the rear section. I divide the shakers into two sections in order that the front of the shakers may have more of the circular motion to carry the straw along, rather than the oscillating motion. The rear ends of the sections 1 2 3' 4', of the shakers are supported by the swings 13, thus causing an alternate oscillating motionto the rear part of the sections. Straw and grain coming through the cylinder are thrown by its force, assisted by the ends 11, against the hood H. It willthen fall upon the shakers 1, 2, 3, 4, which willlift it up and push it along. When it reachesthe pitchers 10 10 they will pick it up, the forks serving to pull it apart, and throw it at 0;. each shaker as it rolls up serving to clear its neighbor of straw as it recedes. The straw will thus be thoroughly shaken of grain. The grain falling upon the perforated and slatted bottoms of the shakers passes through upon the pans E and E, andis swept by the carrier 0 into the fanning mill F. p

' Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- and have a segmental slot 0, in the rear 1. In a thrashing machine the straw shaky ing device consisting of two or more parallel shakers, each in two sections having slatted and perforated bottoms and toothed upper edges, and having two or more adjustable pitchers 10, provided with forks 10' secured to the upper edges of the shakers, the shakers i being connected to opposite cranks substantially as described and as and for the purpose set forth.

2. In a grain separating device for a thrashing machine the combination with two or more parallel shakers each in two sections loosely united by sliding bars, and having perforated and slatted bottoms and toothed upper edges, and the adjustable forks secured to the upper edges of the shakers of two cranks I having two or more opposite arms to which the shakers are secured,.one crank for the front section and one for the rear section and the swing 13, substantially as described and as and for the purpose set forth.

3. In a thrashing machine, the combination with the cylinder and concave of the hood H, the series of parallel sectional shakers, de-

scribed, the crank shafts with alternately opposite arms connected to said shakers, the adj ustable forks secured to the edges of the shakers, and the swing 13, substantially as described and as and for the purpose set forth. In testimony whereof I afiix my signature in presence of two witnesses.

WILLIAM H. BOWEN. Witnesses:

F. D. PATTERSON, A. H. SWARTHOUT.