US1666014A - Grinder cutter - Google Patents

Description

April 1o, 192s. 1,666,014

J. H. KERSHNER f @KINDERi CUTTER Filed A'ug, 51, 1925 2 Sheets-Sheet 1 @Uniway/1' u April 10, 1926. 1,666,014 l J. H. KERSHNER GRI NDER` CUTVTER Filed Aug 31.` 1925 2 sneetsfsne'et 2 i `invention kaims toprovide aysim'ple Patented Apr. 10, 1928;v

JOHN HENRY KERSHNER, orlnon'ron, Kansas. i

GRnDER corran.

' mutation iegiisugust 31,4 i925. semaine. sacar. y', t

buteective meansrwhereby, in singleina-4 chine, stu such asensilage n'iayf be cut, 1t

y being.4 possible, fal'so, to, grind `feed inthe 'tion ,andarr angenient of parts` and in thel i within the scopelof; what is claimed, without ab machine. t

,Itis within the l,province of therdisclosure tol improve generally .and to enhance .the `utility otdevicesfof that type to which the invention appertain's.,

With .thefabove an ceeds, they .invention resides lin the combinadetails vof construction hereinafter described .and 'vclaiined, 't being `understoodr that [changes in the precise Vembodiment of the reinvention herein y"disclosed, may be made departingzfroni thespirit vof the invention.

, z In the accompanying ldrawings f ,Figure 1 shows iny side elevation, a device Y constructed in acctn'danfrze *with the inven tion.; 4'Figure 2 is lan end elevatlon;l Figure f 3is Yafdiagrammiatieview illustrating the l t tiongijligure''isaisection taken about on. u 3.0

relation `which exists v'between the working edgesof. adjacent blades, on the rotor; I Fig- .ure I4 lis-asection takeny about on the` line i,

` foff Figure 2, parts remaining in eleva'- thegline .of Figure 4;y Figure 6 is an f enlargedE sectional-,viewlshowing a portion ofqthefconcave; Figure? is a' sectionalfview nlarsd from' Figure 4f .,In carrying out,` thev invention, there t is l*provided* a rameil. So far asmaterial to` x the present discussion, thee frame includes i. endbarsj Aandside bars 2. The frame. 1

vcarriesv ajhousing' -4.'l"he housing 4 ern-- bodies la discharge ,spouty isecured@ at 6 tol .thesidebars 2 and tothe end bars'3 of y.the drame 1.f Thehousing i4 embodies -a cap 7-joffapproximately'semi-circular shape.

' .The capii hasside, vcleats 8 `secured by bolts brackets 10 Vand 11 aresecured at12to the 9er. otherwise to the side b arsu2'of the frame 1, the, cap-thus beingjremovable, `Angle respective endbarsg3 of ythezranne 1'. 1A

vremovableconcave14is provided.` 4The concave 14is located inthey spout 5 and hasin- 4wardly projecting burrs- 15. The openings th-rough the burrs` 15 iiare at their outer ends, asshown at 16, .sothat the ground finaterial'n'iay free itself readily., Securing velements lconnect the; ends of the concave 14 vvitliftheJorackets'll.v kA fixed'bladej. 18

, ,Y d otherobjectsin view which 4will 1 appeary as the description pro-y is secured atl 19 to the bracket l11 Tandis disposed above the intakeend vof thecouff- The numeral`20 marks anfinclinedchute which. discharges into thelhousing .4, yacross the blade 18',` and at the intake; end ofl they concave ,14.y The 'chute-2O is connectedby U-shaped lstraps 22-to a` hopper 23,.:V .The L hopper 23 dischargespartly ontok the chute cover plate having ianges 26 whichareconnect'ed at 27v4to the side walls "of the chute.

"A cross piece`28 is `connectedtothe rbottom ofthe chute 20. Inclined*supports 29 `eigk tend betweenthe cross ypiecez-28andfone fof the straps-22, the strapsVK 22 being joined byanchor strips 430 which yform places of attachment for adjustabletiesSL-Suchjas 'l bolts, thef.saine beinginounted at their outer ends inthean'gle bracket 1Y0.

Bearings ,32,are ,secured; lto .the side for the lubrication. of a shaftlj34fwhich is journaled in the bearings 32, 'Any suitable means 35 .may be `provided whereby rotation maybe imparted to the shaft 34,v i The shaft 34 carries agrotor`36 Alocated inthehousing i i 4fand cooperating with thelconcavefl4.` -Ro tor 3,6includes a diskvlike body-37 having lateralhubs 3,8, arms '391 beingjsecuredjre- -movably at`40 to opposite vsides ofthe body lbeinginclined .in opposite directions, transversely of therotor,`r as Figure'3 will clearly "show,those edgesl of theVj blades being";pr0

`2 of the frame 1 and carry dopel cups 3 3 loof vided, with teeth V44, which `are sharpened" upon their edges,as1shownat 445. y If iensilage. or the like is ytosbe cut, .the

concave 14 preferably -i-s removed, the enl, silagevbeing fedk along.,y the chutef20,wthe` edges of the teeth 44 ofthe bladesy42 on the .rotor SG-veooperating'with the -xed' "I blade k18 to sever the material, the material passing downwardly-and outwardly, through the lspout 5:, In the event that material is to be ground, the concave 14 remains in place. rIhe material to be ground can be dumped ldirectly into the housing4 through the hopper 23, or, if desired, it can be fed in through the chute.A 20. When the rotor 86 is in operation, t-he blades 42 carry the material over the burrs l5 of the'concave 14, the finely divided material flowing downwardly through the flared openings 16 of the concave.

Because the Vworking edges ofthe b-lades 42 'are inclined'in oppositefdirections transversely of the rotor, because the said edges have'teeth'44, and because the edges of the teeth aresharpened as at 45, a very effective cut is secured'when the blades l42 of' the'iotor cooperate with the'iixed blade 18: and, furthermore, because the'blades 42 are constructed as described, those blades, in combination with the burrs ofthe concave 14, vare peculiarly efficient, the material being moved 'laterally from side to side, torn by the teeth 44, rubbedby the burrs 15 and cut bythe edges45 of the teeth. Owing to the way in which the working edges of the blades are inclined, sharpened, and toothed, the'beneftof adraw cut is obtained, and at the same time, the material is' worked toward the center of the chute 23, or toward lthe centerof' the chute 20, and a clogging at thesides of the chute is avoided. It has been found by experiment that a machine embodying the featuresabove described with respect to theknives or'blades, will operate with approximately 25% less power than is required when `the shape ofthe blades or knives 'is changed from that shown in Figure 3 ofthe drawings.

I claim 1."In a device ofthe class described, a support,'a chute carried by the support, a fixed blade at the inner end of the chute, and a rotor journaled on the support and provided with circumferentially extended blades co- 'acting with the fixed blade, the working edges lof adjacent bladeson the rotor being inclined in opposite directions transversely `of the rotor thereby to obtain the benefit of a -draw out, and to keep the material central- -Iixed'blade atthe innerend of the chute, and

4a rotor Vjournaled `on the support and provided with circumferentially extended 'blades coactingi with the fixed blade, the

Working edges ofadjacent blades on the rotorbeing inclined in opposite directions transversely of 'the rotor, said edges being provided with teeth, the above-defined construction of the working edges of the blades being such that a draw cut will be effected -and',vat the sameti'me, the material will be port, achute carried bythe support, a fixed centralized with respect to the chute, to pre vent a crowding of the material atlthe sides of' the chute.

3. In a device of the class described, a sup` blade at the inner end of the chute, and a rotor ouinaled on the support and provided with circumferentially extended blades co- `acting with the fixed blade, the working edges of adjacent blades on thev rotor being inclined in opposite directions transversely ofthev rotor, those edges'being provided with teeth, and the `-edges of the. Ateeth being sharpened, the aforesaidconstruction of the working edges of the blades being such that a draw cutwill be effected, and, atthe same time, the material `will bey centralized with respect tothe chute, thereby to avoid a crowding at the sides of the chute.

4. Ina device of the class described, a support, a concaveon the supportand having inwardly projecting burrs, a chute, a rotor cooperating with the ychute journaled on the support and 'supplied with circumferentially extendedblades coacting with the burrs, the working edges of the adjacent blades beinginclined in opposite directions transversely ofthe rotor, lthe aforesaidv inclination of' the edges ofthe blades operating to afford a draw cut andto cause the material to be advanced toward the center of the chute, thereby7 avoiding a cloggingat thesides of the chute.

5. Ina device of the class'described, a 'sup- /port, a concave 0n the support and having 100 inwardly 'projecting burrs,a chute discharging on the concave, and a yrotor journaled on the support and supplied withv circumferentially extended blades coacting lwith "theburrs, the working edges of adjacentblades being inclined in opposite directions transversely of the rotor, the said 'edges ybeing supplied with teeth, the aforesaid construc- 'tion of the working edges of the blades being such that a draw cut will'be afforded, and 11u being such that the material will be forced toward the center of the chute, therebyto avoid a clogging at the sides of the chute.

6. Ina device of theclass described, a support, a concave on the support and having inwardly projecting burrs, a rotorjournaled onthe support and'supplied lwith circum ferentially extended blades coactingwith the burrs, the working'edges of adjacentblades 'being inclined in opposite directions circum- *12u ferentially of the rotor, the said edges being provided with teeth, andtheedges of the Vteeth being sharpened, and a chute discharging on the rotor, the aforesaid construction of the working edges of the blades affording 126 a draw cut and preventing a-clogging of the material at the sides of the chute. l

7. In a device of the class described, Aa

support, `a concave carriedy by the support, a

rotor journaled on the support, a chute dis- '1an 1,666,014 j v i 3,

charging upon, the rotor and the concave, the ytion of the blades at theirv edges'beingfskch i' concave being "provided with projecting anthat a draw cut Will be afforded,l and, at'the? 10j' nular burrs having openings which Hare out- Sametime, lthe material Will be 'carried toe` Y v. Wardly, the blades vcooperatil'ig with the in- ,Ward the center lof Jthe chute, thereby tol v- I ner ends of the burrs', the edges of adjacenty av01d a clogging at the sides of the chute.` i

blades. being oppositely'inolned, and being y In testimony that I claim'the foregoing as i I provided with teeth,` the said edgesol the myown, I have hereto axedmy si ature.` K blades being sharpened, and the eonetruc-l Y, l JOHN HENRY KERSH ERf

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