US553894A

US553894A - Territory

Info

Publication number: US553894A
Authority: US
Publication date: 1896-02-04
Anticipated expiration: 1913-02-04

Description

2 Sheets-Sheet 1.

(No Model.)

H. S. BONNELL.

THRASHING MACHINE.

6. M 9 w n 0 4, E w 5 n W e n P W m y W aw M WM WM -o W a EGHMMM. PHOTO-UTHU.WASHINGTO 2 Sheets-Sheet 2.

Patented Feb. 4, 1896.

H. s. BONNELL. THRASHING MACHINE.

wifi esscs I Nrrnn STATES ATENT OFFIC THRASHlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 553,894, dated February 4, 1896.

Application filed March 20, 1895.

To aZZ whom it may concern:

Be it known that I, HARvEY S. BoNNELL, a citizen of the United States, residing at Guthrie, in the county of Logan and Territory of Oklahoma, have invented a new and useful 'lhrashinghlachine, of which the following is a specification.

This invention relates to certain new and useful improvements in the construction of thrashing-machines, and has for its object to provide a more rapid and efficient separation of the grain from the chaff and straw and a thorough and more effective cleaning of the same, with less liability of waste from blowing the grain over, than is possible with similar machines as heretofore constructed.

The improvement consists in combining with a thrashing-machine of ordinary construction a fan to co-operate with the fan usually provided and to dispose the same with reference to the separating-screens and the shoe, and to improve the general construction of the machine whereby the parts are compactly arranged'so as to attain the desired results in a thorough and satisfactory manner.

The improvement also consists of the novel features and peculiar construction and combination of the parts, which hereinafter will be more fully described and claimed, and which are shown in the accompanying drawings, in WhlCl1--- Figure 1 is a side elevation of a thrashingmachine embodying the invention, the near side being removed and parts shown in section. Fig. 2 is a section on the line X X of Fig. 3, looking to the left, as indicated by the arrow. Fig. 3 is a sectional detail view on a larger scale, showing the ordinary fan, the auxiliary fan, the shoe, the rear portion of the conveyer, and the parts immediately connected therewith.

The thrashing-machine in its general construction comprises the usual parts, consisting of the cylinder 1, concave 2, beater 3, grates 4 and 5 beneath the cylinder and beater, straw-rack 6, conveyer 7, shoe 8, grain-auger 9, tailings-auger 10, stacker 11, fan 12, elevator 13, and tailings-spout 14:.

The auxiliary or supplemental fan 15 is considerably smaller than the ordinary fan 12, and is located nearer the front end of the mathine, and has a spout 16, which curves up- Serial No. 542,517. (No model.)

wardly and rearwardly over the fan 12. The

fans

15 and 12 are of ordinary construction and disposed in approximately the same horizontal plane.

A long lip-sieve 17 is located at the rear end portion of the conveyer 7 immediately over the shoe 8, and an inclined lip-sieve 18 is arranged at the front end of the sieve 17 and over the discharge-spout of the fan 12. The inner ends of the sieves 17 and 18 are sustained by a support 19. The lip-sieves 17 and 18 are formed from sheet metal, which have the openings formed therein by punching lips in the ordinary manner common in the construction of sieves for this class of machinery. An incline 20 is provided at the forward end of the shoe 8 and immediately below the sieve 18, and is designed to guide the grain falling thereon from the sieve 18 into the shoe.

A piece of sheet metal 21 is located at the upper end of the incline 20 and between it and the end of the spout 16, and is designed to prevent the grain passingover the front edge of the incline 20. A block 22 is interposed between the side rail and the support for the rear end of the conveyer to elevate the latter a sufficient distance to admit of the spout 16 coming between its lower side and the top of the fan 12.

There will be one block, 22, for each side of the machine, and in addition to raising the rear end portion of the conveyer 7 it also serves to raise the rear end of the straw-rack 6, thereby preventing the grain from passing over the rear end of the latter with the straw.

On reference to Fig. 2 it will be seen that the shaft 23 has crank portions 24 near its ends, to which the rods 25 are attached, by means of which motion is imparted to the straw-rack and conveyer in the usual manner. The auxiliary fan15 is of such length as to come between the crank portions 24, but the spout 16 will be spread at its delivery end so as to occupy the full width of the ma chine and deliver the blast of air upon the full width of the sieves 18 and 17.

In its general operation the machine does not differ materially from others of similar construction until the grain is delivered from the conveyer onto the sieves 17 and 18, when it is met by the blast of air from the auxiliary fan 15, which carries off the bulk of the chafi and other light foreign matter. The grain upon the sieves l7 and 18, and in falling from being applied to separators now in use, in

the same onto the shoe and incline 20, is su bjected to the blast from the auxiliary fan 15, and is not acted upon by the blast from the ordinary fan 12 until it reaches the shoe 8.

From the foregoing it will be seen that the two

fans

12 and 15 act independently, but unitedly effect a unitary result and thoroughly and effectually clean the grain from all light and foreign matter. The blasts from each of the fans can be so regulated as not to blow the grain from the sieves, which would be the result if the two fans combined their blasts and acted on the grain at one operation. It will be seen that the blast from the fan 15 treats the grain before the latter reaches the shoe and that the rain in its nassa e throu h 7 G I '23 t! the shoe is subjected to the blast from the ordinary fan 1;, which removes the last traces of chaff and light foreign substances.

It will be seen that the separating-sieves 17 and 1S incline in opposite directions, the sieve 18 being considerably shorter and disposed at a greater inclination than the sieve l7, and coming opposite the spout 16 receives the full blast of air from the fan and deflects the said blast through the passage formed between the sieve l8 and the inclines and 21 and beneath the sieve 17 thereby carrying off the bulk of the chaff and like particles. The forwardly and downwardly extending lips of the sieves 17 and 18 catch and direct a veyer and the top portion of the ordinary fan,

portion of the blast upwardly through the sieves l7 and 18, thereby lightening and loosening the grain so as to enable it the better to pass through the sieves besides carrying off a quantity of the dust and light matter. The

inclines 20 and 21 catch what grain drops through the openings of the sieve 1S and direct it to the shoe, and these inclines are located above the spout of the ordinary fan 12 and prevent the grain lodging thereon. The provision of the blocks 22 admits of the invention that simple and effective means are had for elevating the conveyer a sufficient distance to admit of the curved spout 16 extending over the fan 12, so as to deliver the blast of air against the upwardly and forwardly inclined sieve 18 to effect the initial cleaning of the grain.

By the present invention the auxiliary fan 15 can be applied to any of the usual makes of grain-separators without requiring a reconstruction of the same and at a slight cost above the expenditure required for the operating parts.

The shoe 8 is vibrated from an eccentric on the shaft of the fan 12 in the usual manner, and has connection with the said eccentric by means of a rod 26 and a bracket-casting 27, the latter being provided 011 the shoe.

Having thus described the invention, what is claimed as new is- In a thrashing-machine, the combination with the shoe, a fan arranged at the front end of the shoe, and a conveyer provided with oppositely-inelined lipped sieves, of blocks interposed between the side rails of the frame and the conveyer to elevate the latter a proper distance, and an auxiliary fan arranged in the front of the ordinary fan and having a spout curving rearwardly and upwardly and extending between the lower side of the consubstantially as and for the purpose set forth. In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

HARVEY S. BONNELL. Witnesses:

JOHN P. GATES, J. E. PICKARD.