US1426270A - Grain cleaner - Google Patents

Description

F. FOWLIER.`

GRAIN CLEANER.

APPLICATION FILED. APR. 20. 1920. 1,426,270.

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Y mmf/wol? Afro/WHS PatendAug.15,1922 I F. FOWLEHr GRAIN CLEANER. APPLICATION FILED APK. 20. 1920. u 1,426,270. I. Patented Aug. 15, 1922.

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I "il i Arron/VHS 'F. FOWLER.

GRAIN CLEANER.

APPLICATION FILED APR. 20, 1920.

Patented Aug. l5, 1922.'

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naires srares earner arrivee,

FRIEND FOWLER, 0F MOOSE JAW, SASKATCHEVAN, CANADA.

einem CLEANER.

Maaate.

Specification of Letters Patent.

Application filed .April 20, 1920. Serial .No.v 375,300.

T0 @ZZ whom t may concern Be it known that Llininivn Fowiininaa citizen of Canada, and a resident of Moose J aw, in the Province of Saskatchewanand Dominion of Canada, have invented a new and Improved Grain Cleaner, of which the following is a full, clear, and exact description.

This invention relates to a grain cleaner', and aims more particularly toprovide a device of this nature which may be attached to a conventional threshingmachine, and by means .of which the. chaff will4 be separated from the grains, these grains in turn being sub-divided into a lighter and heavier grade, and the dust separated from this latter. i l f il. further object of, my invention iszthe construction ofa grain separator which shall be provided with a separatingiapparatus permitting this sub-division, whichr separating appaivatusvshall be operated by means of-extremely simple mechanism and f shall embody asimplified` and efficient conrator constructed invention.

. mixture.

struction permitting of a quick-.separation of .the-various particlesvReference is hadito the attached sheet of drawings which illustrate practical embodiments of my invention, and in which drawings. -f

Figure 1 is a side view of a grain sepa- Figure 2 is a plan view thereof. A yFigure 3 -is a partly sectionalfside view. Figure 4; lillustrates a portion .of the apparatus insection suchfview being aplan view.

Figures 5, 6,

accomplished, and

Figures '11, 12 and 13 show. a slightly modified form of operating 4mechanism which may be preferably employed .tov cause aseparation ofthe various particles or `the lnall theseviews like reference provided with aconventionalcfspout pipepl' ,housing anv endless .conveyor which-:maybe f; Operated by; any` suitable mechanism, suoli ,as a' chain and gear wheel drive 17, A and ytto-loe separatedpto a point -uponftlie trough which conveyor serves to bring the lmixture in accordance with my 7,8, 9 and 10 are partly section enlarged views showing details of -the construction whereby inyobgects Aare nuirneralsy designate similar parts, and 'the reference, numeral -15 indica-tesi a .threshingmach-ine the Qiieniees.,iliit'hisflette slightly .Smallertenreventtheraesese,the

18 into whichthe saine is deposited by means of said endless conveyor.

A drive for the apparatus providiiiga `separation is providedy in the'` construction illustrated in Figures 1 150,10, which. drive rai-@need Aug. ierieee.

conveniently includes a crank shaft 19.rotating in suitable bearings 2O within an inu lclined chute l21, andthis crank shaft may bemoved by any suitable ,form,ofdrive` suoli as an extensible shaftf22 permitting of f adjustment, one endy of such shaft being con` iected by; any suitable ,form :of iuniversal Jointh23uto. the crank shaftl), theoppzosite end of said shaftv 22 being conveniently driven vby a train Yof beveledgears 24, whieh may derivetheir power fromthe drive17 The chute 21; issubfdivided-adjacent. its i llower end ,into preferablyufour smaller chutes or,tubes,\25, 26, 27andf, 28 respectively, the upper .end` ,of .the 4chutes; being formed with an inclined balfle29 positioned over the crank shaft 19. It will Jnow be understoodthat ,the mass tovbeseparated is Yfree from* the yspout l`'pipe 16 .by inieaiisl [of the ,endless conveyor into'wzthe ,trough,.,18 through which itufallsvon :to the1zbaitle-29,

and from this baffle it passes onitoan* apron such as 30. Subsequent,toitsfpassage `over tliejapron 30 it passes through thesepaiatn ing mechanism operated` by., means of.` the crankshaft `19.,and passes .into the smaller chutes or tubes 25, 26,27iand 28 in theform esy of chaff, heavierugrai'n, lighterzgrain ,and

-dust in the order named, it beingunder-` stood that any `suitable means f0r producing` suction is connected with these smaller .tubes or chutesto' draw`the,particlesdef posited withinthe upper,r ends of the, saine into suitable4 receivingvats it, beingV further appreciatedtliat thevblower 30 may conveniently .be seeuredwtov the conveyor 16which.

lblower may -introduce a .blast of vair `within thev chute lby means of a flexible pipe-such as 305. By this provision-it will be understood` that .av nozzle Ofmay-be arranged of themachineu zj i The. sorting mechanism conveniently includes aj primary screen 31 formed with ceinthei meshesofthesame- Anaconda Se. 1 is positioned below. the first Inaiieedf sc-reen, 1 1oin the chute, serving tofacilitate theaotion` :Min

through of small grain and dus-t, larger grain passing through the screen into the chute 26. The smaller grain and dust p asses as aforestated through the screen 32 and onto the screen 33 which is formed with such a small mesh as to prevent the passage of the smallest of grains which are retained by the same, and dust into the chute 2T, the dust passing finally through the screen 353 and thence into the chute 2S.

Obviously a suitable means must be provided for moving the screens, and with this in view 1 provide connecting rods 3st, which extend between the crank shaft 19 and the forward end of a yoke, such as 534i, which has its rear ends connected to one of thel screens so that upon a rotation of the crank shaft the screens will be reciprocated. With a view of providing means which will permit of a moving of the screens in the manner.

required with a minimum of friction, the chute 21 is provided with transversely eX- tending` bars mounting rollers 36 which bars and rollers extend below the screens. Carriages are provided for each of the screens which carriages conveniently include longitudinally extending` angle irons 37 the lower edges of which bear against the rollers 3G, and it will be appreciated that by this coustruction the screens may be moved with the utmost ease.

Positioned below each of the screens is a member forming a combing device 38 which cooperates with the iinder-face of the screen to facilitate the passage of any particles which might have become wed ged within the meshes of'- the same, this member being held in position by any suitable means suoli as arms 39 extending beyond the ends of the combing device and secured in applied position by transversely extending rods 41.0 passingl through the walls of the chute QL 1t is to be noted in this connection that the said combing may take any convenient form, but 1 preferably utilize an element of this nature including a body portion 38 formed with an opening, the body being bent upwardly adjacent the openings thus formed to provide toothed portions 88 which terminate adjacent the lower face of the screens 32 to perform the functions stated. The combingl device may however be separated so that its upper edges are always closely spaced from the under-face of the screen by means of rollers such as 41 which 'rest upon the upper face of the angle iron 37, so that a minimum friction is encountered. rThe carriages formed by the angle irons are further preferably provided adjacent their longitudinal upper edges with a deflector 4t2 which serves to prevent particles from lodg-- ing between the outer edges of the carriages and inner face of thechute, and thus pre vents a clogging of the entire machine. lThe lowermost of the screen carriages conveniently carries a ti'ough shaped receptacle 43 so that the dust passing through the lowermost of the screens may be agitated to a sufficient extent to permit the suction to take hold of the same and to conduct it into the tube 28.

The operating mechanism aforedescribed may be dispensed with and the mechanism shown in Figures 11, 12 and 13 may be substituted in lieu thereof, to advantage, and it will be noted that this mechanism conveniently includes a crank arm 14n mounted upon the spout pipe 16, and be driven by any suitable means, which crank arm will reciprocate a rod 4:5 having secured adjacent its upper end a pair of links 16 and 17 respectively, the former having in turn secured to its outer end, a lever 118 formed with slots 49 adjacent its outer end into which slots pins 50 connected to the links project. The linlr 417 is also formed with a slot adjacent its upper end, and the pin 50 of the intermediate screen 32 may be coiiveniently connected to this linlrl by the means described.

1t will be appreciated that in operation,

lthis latter device causes a retraction of the uppermost screen simultaneously with the projection of the lowermost of the screens and the retraction of the intermediate screen.

Obviously, numerous modifications of this structure described might be resorted to without in the least departing from the scope of my claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is as follows 1. A grain separator including a chute, a plurality of carriages disposed within said chute and arranged one above the other, means extending within said chute for movably supporting` each of said carriages7 means connected to said carriages for reciprocating the same, each of said carriages including side members co-operating with said supporting means, av screen extending between said side members, and deflectors carried by the side members of each of said n arranged below each of said screens, supporting means interposed between said combingdevice and the upper facev of the lowermost arm of each of said angle irons, and means for reciprocating each of said carriages.

3. A grain separator including a chute,

arranged below each of said screens, said` screens being spaced from the upper face or the lowermost arm of eacli of said angle irons, the side edges of said combing device extending into the space thus provided, supporting means interposed between the upper faces of the lowermost arms of each of said angle irons and said combing device, and means 'for reciprocating each of said carriages.

4. A grain separator including a chute, supporting means positioned within said chute, carriages niovably resting uponsaid 4 supporting means, said carriages each com'- prising angle irons and screens extending between said angle irons, a combing device arranged v below each of said screens, lsaid screens being spaced from the upper facev of the lowermost arm ofl each of said angle irons,1the side edges of said combing deviceextending into the space thus provided, rollers interposed between the` upperi'faces of.

the lowermost arms lof said angle irons and said combing device, means or retaining said combing device relatively Xedwithin said chute, and means for reciprocating eacli 'of said carriages.

, vFRIEND FowLiiR.v

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