US58707A - Improvement in grain-separators - Google Patents

Description

WIRTS & SWIFT.

Grain Separator.

No. 58,707. Patented Oct 9, 1866.

O OGOO O0 1 OOGQO OOO UNITED STATES PATENT OEEIcE I S. M. VVIRTS AND F. SIVIFT, OF MEDINA, MICHIGAN.

IMPROVEMENT IN GRAIN-SEPARATOR S.

Specification forming part of Letters Patent No. 58,707. dated October 9, 1866.

To all whom it may concern.-

Be it known that we, S. M. WIRTS and F. SWIFT, of Medina, in the county of Lenawee and State of Michigan, have invented certain new and useful Improvements in Grain-Separators; and we do hereby declare that the following is a full, clear, and exact description of the same, reference being bad to theaccompanying drawings, and to the letters of reference marked thereon.

In the annexed drawings, making part of this specification, A represents the frame of the machine, which may be constructed in any of the known and usual ways. B represents the fan.

At one end of the fan-shaft there is gearing provided for driving said shaft, and at the other end-there is a disk with a pin placed upon its face near its periphery, which said pin plays in a slot in one end of a bar, E.

P represents a bar which runs crosswise of the machine, and which has its hearings in the sides of the frame. One end of bar P has a tenon on it, which passes into a mortise in the bar E.

F represents a metallic collar on the bar P, which said collar is provided with two arms, one extending above and the other below the said bar P.

Connecting to the upper arm is a rod, G, which serves to impart motion to the main shoe 0; and connecting to the lower arm is a rod, H, which serves to vibrate the lower screen, I.

0 represents the main shoe of the machine, which is provided with a supplemental shoe, D. The upper end of the shoe 0 is provided with an inclined bottom, R, and over this inclined bottom is arranged a fine screen, N. At the lower end of the bottom R is a seed-trough, L, the bottom of which is high in the center, but which inclines downward as it approaches the sides of the shoe, where it has its outlets.

The fine seed, such as grass, &c., pass through screen N, fall upon bottom R, and from thence into trough L, and thence down its inclined bottom to the outside of the machine.

The forward end of the shoe 0 rests upon or is supported by the spring q, while its rear end is hung by the springs d (1.

In the center of the trough L is secured a small roller, m, and upon the under and lower side of the screen Nis a metallic plate, with its under side shaped like an inverted V. This plate rests with its peculiar-shaped under side upon the roller. When the trough vibrates, as will be described, it serves-in this manner, through its roller, to give motion to the screen N.

K represents a bar, shaped as shown, one end of which rests in an opening made to re ceive it in. the side of the frame. This bar is pivoted at its center to the shoe 0, and has its other end connected to the spout or trough L. When the shoe vibrates this bar serves to give an end wise motion to the trough L.

Under the inner and upper side of the suppleinental shoe D is a carrier-board, c, and

above this carrier-board is a coarse wire sieve,

a. Connected to sieve to is still coarser screen or sieve I), made of perforated zinc.

The inner ends of the shoe D are pivoted to the shoe 0 in such a manner that its outer end may be raised or lowered.

0 represents a rod which passes through the tail end of shoe 0, and is provided with a thread and nut on one end. By tightening up the nuton the rod 0, the supplemental shoe D is confined tight between the ends of the shoe 0, and is thus stationed at any desired angle or inclination.

I represents the lower screen, which lies with its outer end higher than its inner. The inner end of this screen is supported by means of small rollers on the inside of the frame A, while its outer end is supported upon a rod, t, which said rod pl. ys in slots in the end ofthe frame A.

J represents set-screws, which serve to raise or lower the rod 17, and consequently the outer end of screen I.

In operating this machine, motion is communicated to the shoe and lower screen, by means of the rods G and H, by the rocking or oscillating of the plate 1* upon the bar P. An endwise vibratory motion is thus communicated to the shoes. When the shoe U vibrates it gives, through bar K, an endwise motion to the trough L, and said trough, with its roller m, gives an up-and-down as well as a side vibration to the screen N.

The upper end of screen I is provided on its under side with small pins, which strike the rod 1' when said screen is vibrating, which serves to give the said screen a bounding motion.

The grain is placed in the hopper of this machine and passes to the screen N, which vibrating, as has been described, causes all'of the small seed to pass through it, and thence through trough L out of the machine. The other grain passes onto the coarse wire sieve, which is directly before the blast. The heavy grain passes through this screen and falls upon the screen I below. The lighter grain, such as oats and small grains of wheat, pass on, being driven by the blast, to the zinc screen. The smaller or lighter grains of wheat pass through the openings in the zinc screen, andthence onto the screen I, while the lighter grain of other kinds is still driven forward by the blast off of the said screen I) and out at the end of the machine.

It is very essential in the separatin g of grain to have a perforated zinc or other metallic screen; but, as much of this kind of screen makes the shoe heavy and unwieldy, we have found it best to combine a coarse wire screen with the zinc screen, as is here shown.

The trough L can be easily removed from the machine. In cleaning some kinds of grain, where it is necessary to have a direct blast, the trough is removed, and the machine will then clean the grain better and faster than it would were the said trough left in.

Having thus fully described our invention,

what we claim as new, and desire to secure by Letters Patent, is-

1. The movable shakiugspout or trough L, operated by means of the bar K and shoe 0, substantially as herein specified.

2. The screens a and b as constructed and combined in the supplemental shoe, and with the carrier-board e, as and for the purpose specified.

3. The combination of the rod 0 with the main shoe and supplemental shoe for regulatin g the inclination of the latter, as and for the purpose set forth.

4. The employment of the rod i, in combination with the lower screen, I, for the purpose of adjusting the inclination of said screen and imparting a bounding motion to it, substantially as set forth.

5. The supplemental shoe pivoted at its inner end to the main shoe, so as to allow of adjustmentof its outer end, as and for the purpose specified.

As evidence that we claim the foregoing we have hereunto set our hands in the presence of two witnesses.

srnrnnn M. WIRTS. FRANK SWIFT.

Witnesses:

J. M. WooD, J. J. W001).

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