US1762225A - Screen drum for green-pea-vine hullers - Google Patents

Description

June 10,1930. -F. HAMACHEK 762,2

' SCREEN DRUM FOR GREEN PEA VINE HULLERS Filed-"Jan. 18, 1924 Z-Sheets-Sheet 1 FI (15- (1e WITNESSES z/m/t/ M-EW Z June 10, 1930. E F, HAMACHEK 1,762,225

SCREEN DRUM FOR GREEN PEA VINE HULLERS Filed Jan. 18, 1924 2 Sheets-Sheet 2 FIQ.Z l5

FIG. 4:

WITNESSES fiEg MNENTOR' ATTORNEY Patented June 1 1 930 MACHINE COMPALTXLOF KEwAUnEE, Wisconsin, neon-renames; ertwiseonsm sem pm r93 f Application filed a ar na' This invention'relates'" togreen pea -'Vine hullers and has for its ObjGCtftjO provide-a screen drum, which, in its co-operation with the rotating beaters'jwithin it, -serves .to re ducethe tangled'lnasses of Vines to a greater extentthan' has heenpossible-withscreen p p p r Fig.41salongitudinalsect onal V lew itt one drums as ordinarilyconstructed;" p

Another object of the nvention is to pro .Ivide the screen drum w ith lifting ribs in-' clined with respect to their ciireetionoi' 10- tation, whereby the material will he dropped from themearlier in the cycle of operation or at a lower point i-n 'the drum, where. liberated peas will fall upon the screen surface of the drum and so be given an opportunity to pass out of the drum without injury by the heaters.

Another ohject -ofthe invention is to, ad

Vance the tiiningof the discharge of, material from the lifting ribs in this manner so as to facilitate the action of theheaters in] disentan-glin'g thehunches of; vines,- whereby the pods inthe interior of the hunches'are made I "moreireadily accessible to thejopening action of the heaters.

* Another object s-f the invention is to prolong'the duration of the disentangling "action of the heatersh-y the slower discharge of the vines from the liftingr'ihsfl 'Another, object offthe invention is to per open angle between the screens andthe ing ribs and so avoid the: al' gular pockets of dirt. 1'

Withthe ttested other 'tbjees in. iew;

' the inventionjjconsistsin the screen druni for g een pea viners "herein claimed and "all.-

V the sameparts in 'djifierent views,

e u a n s.

,eferring )to the accompanying; drawings in which like charactersof reference indicate Fig.;1- is a transi erse sectlonal vieweofi a portion 0f.-a green j pea Wi ner showing: the screen drum constructed in accordance with end of the screen drum, i and j travel-ofloose'peasdischarged from lifting path of thehe aters,'the'hlows ofwhieh againstp I the pods cause the podsEtoo-pen and liberate feet detail-s .ofacons'tri ction of the screen the peas. Theloose peas-pass oil-t of the d rii'nfi; giving it strength and accessibility. 1 Another object ofthei nventien isto' inake a more sanitary machine providing a'inore p arranged inga-radial plane'-whether-theyweife of solid hoard constructien orof morefor'less I open construction but in the present inVen-y 7 ring it t reach a discharge angle at aglowei'f I v portionof the dIlhfIJ-ThiS llOt only servesto 1 r -preduce ,thefstream offaihngloose as he 'e sgig msmmse I this assess; ma the re1ation 6f heaters Oneof the lifting ribs;

' 25" is a diagram "showing the path of I.

rib and the path of travel of vines struck by I the heaters. i v I V In these drawings, 10 indicates the machine f frame,1 in which is journaled the shaft ll ca'r rying the heaters 12 as usual. Surrounding- V v e '5 the heaters 1s a screen drumniountedjonsupporting rollers and driven as usual' in the same directionasthe. heaters h ut rat a slower speed. The drum I consists of end rings "13,

which 'are c'onnected togetherhy regularly spaced]:lifting V-rihs 14;: which form supports. for rectangularscreen frames 15. covered with screen material; The vines in hunches as har- Vested from the (field :irefed to the drumthrough an opening 16in the casingat the end ofthe druman'd falling onto a screen hetween the lifting rihsjyare carried upwardly on the'--li f ting' ribs and discharged in the drlnn throngh the sereensujrf ees thereef and a fall upon aseparatmg'apromnot shown; Heretofore llftlng rlhs have been ujsua ly tion the lifting surface of the lifting rib lf is inclined withfrespect to a radial plane, cans yc nd-the reach of the heaters sov that theywill not-"he struck hyfthe-heeters anti-bruised, hilt I it gives" an earlier; start to the action of the heaters in reducing the'hiin'ches oii'vines 'hy" -the1r engagement w1ththe-outerportions of" thehunches and consequently the action of rediicing the blunche's'isf inere thoroughland i The lifting rib 14 is preferably made with its rear surface inclined also but in the opposite direction so as to produce a symmetrical form and a convenient construction is shown in detail in Fig. 3, wherein an inner board 17 is clamped to a series of triangular metal frames 18 by a bolt 19 having a nut 20 threaded thereon and the inclined opposite faces of the lifting rib are formed by boards 21 bolted .members 23, which bridge across the lifting rib and engage both of the screen frames fitting thereon. These clamping members are mounted on the bolts 19 and are held in their clamping engagement by means of nuts 24:

threaded on the bolts, but as they are of a U-shap'e, as shown in Fig. 2, they are capable of being partly turned so as to release either screen frame without releasing the other, ac-

cording to whether they are given a partial turn to the right or. to the left.- If given a full quarter turn they release both frames. At the receiving end of the screen drum where the heaters arelonger each lifting rib is provided with a blow-deflecting guard 25 as covered in my Patent 1,405,914, dated February-7,1922.

In operation the bunches of vines as harvested'are-fed to. the machine through the feed opening 16 in the end wall of the housing, where they are caught by the end heaters and the lifting ribs and are more or less strung out to effect a preliminary separation or reduction that will give better access to the peas; Thereafter the vines, still bunched to some extent, are lifted by the inclined front walls of the lifting ribs and are fed gradual- 'ly' into the path of the heaters, which furtherreduces the size of the bunchesand er;- poses the pods to the blows ofthe heaters to open them. and liberate the peas. Vines sliding off of thelifting ribs and struck by the heaters will be thrown upwardly against the inclined rear walls. of the preceding lifting ribs and will fallback to be again struck by the heaters so that they may be struck repeatedly before theysucceed in passing over the'beater drum, thus increasing the effective-' ness of the vine-bunch-reducing and the podopening operations.

The inclined front walls of the lifting ribs cause the loose peas to roll off at a lower ele-. vation than with the ordinary radial lif ing ribs, so that the stream of falling peas is beyond the reach ofthe beaters and the peas fall on the screen surface of the next screen frame, as ndicated ln the dlagram Fig. 5.

7 Thus the loose peas are protected to a large eXtentfrom the, bruising action of the beatersboth by the avoidance of their being dropped in the path of the heaters and by their dropping on the screen surface sothat wall of the lifting rib causes the vines carried thereon to start to slide off at a much lower point than when radial ribs are used and consequently the vines project into the path of the heaters Where the beaters are traveling upwardly with the result that the vines are given a repeatedgentle jostling or juggling action, shaking the peas therefrom and increasing the opportunity for the beaters to strike and open the pods. Further-' more, the vines slide off of the inclined lifting rib gradually so that successive portions are exposed to the blows of the heaters and consequently the untangling of bunches of vines is further promoted and this reduction of the tangled bunches of vines is of extreme importance in a machine of this character for the efficiency of the operation depends upon it. Such peas as pass through a'viner unopened are usually those protected from the action of the beatersby surrounding mass of vines. Contrasted with this the operation of the common radial lifting rib is such that it carries the vines to a position above the beater drum before they begin to slide off and then meet with the heaters where they travel in more nearly a horizontal direction so that the bunch as a whole is thrown lat erally across the drum without materially reducing-it and without subjecting the peas to the repeatedaction of the beaters.

In actual practice it is found that the inclination of the lifting surface with respect to the axial plane and the retarded release of vines resulting therefrom causes the vines to be stretched across the gap between the lifting surface and the heaters where the loose peas have an opportunity to drop through and be discharged and affords an opportunity for a greater numberof pod-opening blows to be struck by the heaters.

The direction of travel of the vines resulting from theblow ofthe heaters and the censurface of the lifting rib instead of against a radial plane and consequently they receive a glancing blow instead of a bruising blow.

The inclined rear surface of the lifting rib prevents the formation of a pocket in which the vines might be held by centrifugal force and retarded in their dropping action.

T he lower position for the first dropping of the vines by the inclinationof the lifting rib causing the blow received by the vines when hit by the heaters to take place earlier in the cycle of operation results in "loose parts being thrown against theinclined rear surface of the preceding lifting rib and then falling in a position to be struck again by a beater and again thrown against a lifting rib before reaching a point beyond the range of the beater and inQthis manner effecting as struck increases the efficiency of the pear hulhng operation. v I

The gradual discharge of vines from the inclined lifting ribs increases-the number of engagements of the, heaters with the vines.

and tends to drag the vines out-and disen tangle them from the bunches in Which they are fed to the machine so thatthese bunches are progressively broken down or reduced and, while; there IS a tendency to rebunch'at.

the bottom of the machine, the succeeding action of separating such bunches becomes easier to perform and less trouble is caused from bunching as the vines progress the machine. 7

The lifting ribs through of this invention are of simple construction but add great strength and rigidity to the drum and facilitate cleaning, While thesiniple clamping mechanism for securing the screen frames in place permits of quick access to the interior of, the

drum and enables one screen frame to be re-iv moved without disturbing the others. Y

The lifting rib With inclined front face in accordance with this invention, not onlyv iiialres the machine more sanitary, for the reasons hereinbefore mentioned, but'for the further rea'sonithat the angle formed be-' tween the llfhlllgflb and thescreens is more open than with the ordinary straight lift iiig rib and so avoids the formation of angu-{i lar pockets between the ribsand the screen in which dirt may accumulate. The open angle furthermore facilitates the cleaning. operation. r

. It will b byrinc lining the front face only of the lifting rib and,- While such constructions are covered b the claims mentionin onl thej J7 a h a front or liftin faces of'the ribs the con-- struction as shownls-preferred.

Throughout this oasethei mentlon of the inclination of the front 'faceof the lifting QW'hat I claim as new rib serving to causethe loose pea'sto fall before they are positionediabove thebeaters" has reference to the fact that the; stream of neasas shown in Fig. 5 isb eyond the path 1 1 i of travel of the heaters,

Throughout the specification and claims of this case the term green pea vinehullers is used with its broader meaning to include machines used'for hulling limabeans and other suitable crops as the invention is not 1: 85.111 a green pea vine huller,

beatersrotatable therein, lifting ribs extend 'ing along theinner Walls; of the d-rum coma rising triangular frames, boards secured) to the converging'inner edges ofthe frames, clampingmembers secured to the outer-edges confined to the use with greenpeas; 'j e V anddesire tov secure by Letters Patent 1s: 7 r

1. In agreenpea vinehulle r, a screen'drum, heaters rotatable there n, and lifting ribs 1 within the drum with their lifting-surfaces apparent that some ojf the'bene fits ofthe present lnventionr nay be obta nedinclined rearwardly from their massa e in order that loose peas may roll oifthere-V from befo're'reaching a position above the heaters. 2:111 a green pea vine huller, a screen drum,

heaters rotatable therein, and means for sub fleeting vines repeatedly to "the blows of the heaters comprising lifting ribs along the in .ner Walls of thedrum With their lifting faces deflectedrearwardly from the surfac'eof'the drain, a I Y In a green pea vine huller, a screen drum,-

heaters rotatable therein,- and means for sub-- jecti ng vinesrepeatedly to theblows of the heaters in each cycle (if-operation comprising lifting ribs along the inner Wallsofthe drum having their front faces inclined rearwardly.

and their rear faces inclined-forwardly.

4. Ina green pea vine huller, a screen-drum,

heaters rotatable therein, and means for subjecting vines repeatedlytoithe blows of the heaters to-open the'pods Without undue bruis ing' of peas consisting of lifting ribs extending along the inner walls of the drum with; v a

their frontfaees inclined rearwardly from their outer edges to d scharge loose peas beers where the heaters inove' upwardly.

"fore v they are positioned above the heaters and to expose vines to the action of the b eat-' for" subjecting vines're'peatedly to the blows ofthebeaters to open thepodsivithout undue bruising of'peas consisting of. liftingribsfexv tending along the inner wallsofthehdrum With their front faces inclined rearwardlyto discharge loose 'peasbefore they are positioned. above the heaters and to expose vines. to the actionfiof the beaters Where-the beat-1 er-s inove upwardly, said lifting a-ribs" having forvvardlylinclined rear faces against which the vines may be thrown by the beaters torev to the pathof thebeaters.

ceive-a glancing.blow defiecting :thein back i 1410; drum, beaters rotatable thereim and lifting rirbs extending along the inner alls :of- "the! Y 7 drum comprising boards arranged at an'angle to each other to form. surfaces lnclinediwlth "respect to an axial plan'e'from one end of the d m-to theotherh l 7.:In a green pea vine huller, a screen drum, heaters rotatabletherein,uandglifting ribs extending along the inner wallswof t'he' drum comprising boards arranged at-an angle to each other, inner boards connec 7 9' their inner edges, screen; frames fitting a1 their outer edges, and clamping .means i securing the screenframes in place.

a screen drum,

of the frames, and screen frames fitting against-the outeredges of the boards and held in place by means of the clamping members.

9. In a green pea vine huller, a screen drum,

. beaters rotatable therein, lifting ribs along the inner Walls of the drum comprising triangular frames, pairs of boards secured to the convergmg lnner edges of the triangular frames, inner boards fitting against the inner 11. In a lifting edges of the, pairs of boards, screen frames 1 fitting against the outer edges of the pairs of boards, bolts connecting the inner boards With the frames, clamping members pivotally mounted on said bolts, clamping nuts threaded on the bolts for securing the clamping members against the screen frames.

10. In a green pea vine huller, a screen drnm, beaters rotatable therein, lifting ribs extending along the inner Walls ofthe screen drum, screen frames fitting against the edges ofthe lifting ribs, and pivotally mounted clamping members on the lifting ribs having eccentrically positioned pivotal points Whereby a partial turn thereof in either direction Will release one screen frame Without releasing the other.

'ib for screen drums of green pea vinehullers, a frame member having oppositely inclined edges, a pair of boards secured to said edges, an inner board connecting the edges of said boards, a bolt passing through the inner board and the frame, a

nut threaded on the bolt for clamping the partstogetlier,screen frames fitting against the outer edges of the pair of boards, shoulders on the frames forming abutments for the screen frames, a clampmg member pivotally mounted'on the bolt and engaging the edges of the screen frames, and a nut thread- 7 ed on the belt for securing the clamping member in place, a

12. In a green pea vine huller, a screen drum, beaters rotatable therein, and inwardly extending lifting ribs Within the drum With their lifting faces inclined rearwardly With respect to a radial plane.

in a green pea vine huller, a screen drum, beaters rotatable therein, lifting ribs extending along the inner Walls of the screen drum, screen frames fitting against theedges of the lifting ribs, and pivotally mounted clamping members on the lifting ribs, said clamping members being of a U-shape Whereby a partial swinging movement thereof in yea ' to re.

either direction will release one screen frame W thout releasing the. other. In testimony whereof, I affix my signa- FRANK HAMACHEK.

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