US1554946A - Thrashing machine - Google Patents

Description

Sept, 22, 1925 Patentedy Sept.v .22, 1925i.

EARL L. BLASIER, OF KALISPELL, MONTANA.. p

THR-ASHING- MACHINE.

Application filed November To all whoma'tmy concerm.

Be it known that I, E L. BLAsiiciz, a citizen of the United States residing at Kalispell, in the county of *latliead and State of Montana, have invented certain new and useful Iniprovenientsin Thrashing Machines; and I do declarethe following to be a full, clear, and exact descrip-f ltion of the invention, -such as will enable others skilled in the art to which it appeitains to make vand use the saine.

In thrashing machines of the types now commonly used, considerable launching, ot straw takes Aplace as it is received upon the vibrating Astraw rack, from the thrashing cylinder and hence ditliculty is encountered in properly spreading the straw over the rack to insure separation of all grain therefrom. Also, one of the most serious problems to be dealt with, inl the ordinary thrashing machine, is the accumulation ot' dust, pai'- ticularly under the cylinder. Such accumulations repeatedly cause explosions., often severely injuring the machine ,and its attendants or operators. l

Itis the object-of my invention to overcome thelditficulties abovee pointed out, by

the provision of air-blowing means *having an inlet communicating with the interior of the thrashing machine housing, and

a rearwardly directed outlet. Thus, the air drawn in bythe air-blowing mean/s, carries all dust with it and such dust cannot therefore accumulate, but travels onthrough .the machine to its `outlet end. The blast oi airl from the outlet of the air-blowing means,l

Asei-ves .tofdirectthe straw upwardly 'and `rearwardly',before it is'dropped upon the straw7 rack, thus disintegrating the straw to alargeextent. and permitting/the grainr ilo-:drop fi'eely'ftothe usual grain pan "or .Lconveyon the straw being then deposited 'loosely upon the rack to be further'acted upon by the latter. i

With the ,foregoing in view, the invention resides in the novel subject matterhereinafter described and claimed, the descrip- `tion being supplemented bythe accompanyy lingldrawing, in which Fig. l is a longitudinal sectional view, partly in elevation, of a thrashing machine embodying my improvements, and Fig. 2 is a vertical sectional view taken. on the line A-A of Fig. 1.

. In the drawing above brieiy' described, the numeral 1 designates the housing of a nthrashing machine, in one end of which the" 1, 1923. serial No. 67am.

grate 5, a straw beater 6 is illustrated, be-

yondtliis beater, a transverse straw check 'TisI shown extending downwardly from the top of the housing, and in. the lower portion of Vthis housing, the straw rack 8 has been illustrated with its front end spaced downwardly from the grate 5. .y

In the space between the straw rack 8 and the grates 4 and 5, I havey shown an elongated fan casingr 9 which is of cylindrical form in the present disclosure, said casing ,being mounted in the housing 1 in any desired manner, for instance, upon suitable supports such as that indicated at 10.' The ends of the casing 9 are open to receive air and dust sucked from the interior ofthe housing 1,/ in the vicinity of the cylinder 2, and the distance between these open ends, is substantially the same as the length of said cylinder.. The upper portion of the casing 9 Vis provided with a rear-` wardly inclined discharge neck 11 `which may well have an adjustable lip `1`2.

Suitably mounted within the casing 9, is i will be drawn into the casingY 9 from the.

`interior ofthe housing land that this air vwillcarrywithit any prevailing dust, in-y stead of permitting said dust to accumulate and later'explode. This air and any dust which may be therewith, is discharged upwardly and rearwardly through the neck 1l, so that the straw thrown rearwardly fromy the cylinder 2, is'also forced upwardly. In acting upon the straw in this manner, the air loosens such ystraw and Permits the. grain to readily fall therefroimvbefore the straw reaches the straw rack 8. Furthermore, bunching of the straw on. the front end of the rack is prevented, by the air blast.

As excellent results may be obtained from the general ,association and construction shown, they are preferably followed, but within the scope ofthe invention ,as claimed, numerous minor changes may be made.

. I claim:

In combination in a thrashing machine, a rotary thrashing cylinder, ,co-operating stales llO

tionary thrashing concaves located under said cylinder, a stationary grate located. under said Cylinder inrear of sald concaves,

said grate hei-.ng provided fwith air and dust'. rearwardly and upwardly beyond the rear' passages, a fan casing located under the rear portion of said grate and having open endsvin connnuncation with the portion of the interiorV of the machine beneath said grate Ato suok,.the air and dust through said `passages, a' fan mounted in said casing.

and a rearwardly and upwardly directed 10 discharge spout carried by said casing to dis.- oharge the au' -and dust; sucked by said fan end of said grate.

Intestii'nonfy Whereofl hayehereunto 15 affixed my'signature.

l' EARL 2L. BDASIER.'

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