US1755214A - Continuous extractor - Google Patents

Description

April-22, 1930. F. FURBUsH 1,755,214' v CONTINUOUS EXTRACTOR Filed Dec, 14, 1926 3 Sheets-51186K l 11T Diff/PINI April 22, 1930. F. L. FURBUSH 1,755,214

y CONTINUOUS EXTRACTOR Filed Dec. 14, 1926 3 Sheets-Sheet 2 April 22, 1930. F. FuRBUsH l CONTINUOUS EXTRACTOR Filed Dec. 14, 1926 3 Sheets-Shes?I 3 Y Patented pr. 2 2,v

CONTINUOUS EXT3-ACTOR .ppilicatlion iled xllecem'ber E14, 519:26. .Serial -1\T o..:1v54,8 23.

This invention relates to `a device f for tracting inisture from 'comminuted matters f sueh as rubber fibre. and thelikeff fThe 'Principal Objecsflh inventif?? afet fprovide an y'improved means for driving vtheendlessY apron Von vvhiohf the material is carriedthrough the 'squeeze rollsgtof jprovide aniinprovedforrn-of apronwhich will/.pass

around the druins atv thel ends ofthe .device Without'bindingand With lesswear than has A been the ca'seheretoifore; in Combinationvvithy rldilygand to. providean anxi'liarylnean'sf' which v,Will .drivefthe faipron that Work i p'o vely'fatl'anvtiine vvhen j thelinain `dri-v.-` ing ns'loses Control ofthe apron. objects and 'advantagesof thein-y 20 vie. will@ppeariheriafes J encefifs .tobiehadto th ,accompanying Ldi @siinwhichfi riga sa new imL {heier-f4 Y-il-*ie'fs er1@ @Pros .and Lemie;

A vel'iti'on"relates tol a Anlaohi'ne forefrtracftirrg' nioi'stureffrorn Wet conniinted rub- .beror othrffbrousrnaterial. These nia'chines usually have =a'n"e`n`dl `ess apron in' whichY the several liirls -vare" connected together by'hinges Whiehpassover oetanfgul'ar or siniilarf drumsy at the vends: The "swinging ofthe .plates on .their l'hingers as fth'ey pass 'overjthe drums fis ac'kcompanied )by :considerablefrvvear and' in caseof llaclr ofjeXa'ct :registration the hinge parts 1vare-apt tojbebent.' The result is thatr they weer; at thehngesffirst and the lhinges lim-it the nre er 'the Deaf-Chine.'.'*Theednecig 'tienerrneiiqsiepressedaeofffhs masser df :a lrlecoil: nous 'extractor' constructed 1n accordance with' ."thisxinventiong Y lshovvingthe vratchet@drivingfarl l "Where they receive-pressure fromA rods 2'f3 80 yWeights ca'nbe adjusted'by the fusual practice 'of putting on or taking oijthe -vveighting di's'cs. The rods-are guided in the usual Way,

cause 'is to getinto the jointsarldbearV` ingsv of .the machine,y with obviously loadk resulfts. Thisinventionzis vdesigned .to avoi d these dif1iculties largely and one of the prins cipalfeatures is the construction' of thegapron ygreat; 'flexibility'of sprocket chains oiicer-y t'ainfconstruetions; o

securing the above .nienvin suohja manner that the apron itself YWill have no hinges. and Will'depend. uponthe`v a duplex machine, although it' is :to beunder` I stood that Ya machine '-vvitha single .pair of v 65 l same principle. this Vmachine Ighave pro- I vided the rfr anie lOwith-b'earingslfor the studs extracting rollers 'can 'be constructedonthe offa pair fof lower pressurerollers fl'lfspacedV :z a distance apart and withV apair ofslots f0r"'thefstuds yof a vpair Vof uppervrollers These upper rollers bearvviththeirvvhole Weightonthelower rollers. Lever-S15, Whioh;

arfegpivoted `at 165 translnitl pressure through] .bearings 14 to the upper yrollers. The levers ,.75 .mounted by hand nuts v1x8 on vertical rods lfarepr'essed upon bysprings v17 adjustablyu 19. I'These'roiflsfll'awe hooks at thebottoln engaging under end levers wQ1 pivoted at `22, and' 'extending to the center of vthe ymachine` sistsv "off ap-late vvhich \i's providedwi th perforations." l`hese vplates arebeveledontheir, l. Vopposite endsso that When two plates vswing about-'an axis at their. ends the edges WillnotV interfere With eachother as indicated in-Fig;v

4l ""Eah plate i's'covered-Witha brass plate '26 "Whichis turned Vover .atits edges to t the f 'inclined edge'oi 'the ironplate and secured thereto.V This brass plate isdprovide'd 'very'fiindp erorations While-the perfforations y inthe' lneftal plate are coarse'. The plateseon# stiftutilig 'the apron are entirely separate frein eac'hv other'and although they "come into con- Y isan easy drive on the sprocket chains. I-Iowever, in some cases the drive of the apron might be interrupted by various conditions that may result in this industry. For the purpose of keeping the -chains going at such times and automatically restoring them to this friction drive when this is over, I provide an auxiliary drive. On the shaft of one of the rollers ll is placed a sprocket`wheel 29 and on a shaft 30 is placed another sprocket it. wheel and the latter is driven from the former by a sprocket chain 3l. This sprocket wheel on the shaft 30 is larger than the driving sprocket wheel and consequently would drive the apron at less than its normal speed. .f It is connected with the apron by a pawl and ratchet device comprising spring ratchet pawls 33. l Y

lIn the ordinary operation of the device this ratchets over without performing anyV I S function but if vthe apron is not driven by the rolls, the ratchet device will positively operate vthe apron at a lower speed. When the rolls are working normally' again, they take up the apron and'run it at full speed,

l `thus rendering the ratchet device inactive.

and is received in the troughs 35 on both sides VThe liquid extracted from the material by the press rolls drops down below, of course,

in the present case. They extend clear to the ''center so that they will receive all of the liq uid drained out. At the bottom they are provided with depressions 36 which can drain ont at one end by gravity or can be attached to a hose connection andV pumped out. This faffords a means for getting the water or other liquid out of the machine either continuously or intermittently. Y

The studs 30 of one driving drum for the apron are adjustable by screws 39 while the opposite stud is put in stationary position preferably, as only one adjustment is necesi sary. The driving of the apron is performed in the usual way by means of a driving shaft and gears as indicated in Fig. 2.

For the purpose of raising the weights 24 and the bearings 14 so as not to bear a weight on the rollers 13 when the machine isV idle,

the rods 23 are provided with sleeves 40 ca-` these sleeves'is connected by a link 4l to a lever 42 pivoted at 43. This lever has a link f 44 pivotally connected to al hand lever 45 Which itself is pivoted at 46. Thenormal d' v{ratchetarrangement will operate idly under fnormal conditions, but when the apron is not at aspeed as high as that of the largerj sprock' wheel, the latter through its ratchet position is shown at the left in Fig. 2. When it is desired to raise the weights, 1n case the machine is idle, the handle 45 is depressed asV This machine is more durable than the machines nowon the market on account of the removal of the weak point in the apron. The sprocket chains for driving the aprons" are not weakened in any way and do not present the same difficulty in the pivotal connections as the links heretofore' used. The liquid is caught and drained oil' without so much dangerof its reaching and rusting the bearings or chains. g

Althoughy I have illustrated and described only a'single form vof the invention I am aware ofthe fact that modifications can be made' therein by any person skilled in the art without departing from the scope ofthe inventionas expressed in the claims.

Therefore, I doV not wish to be limitedrto all the details of construction herein shown and `described,but what I do claim is :--Vy

'1. In an extracting machine, the combination with-a pair ofv extractingrolls, of an apron-'passing between them, said `apron being-v made upfof plates 'free at their edges fromeach other and sprocket chains on each side connected with the several platestocom'- plete the apron, whereby thepassageof the apron between the rolls will driveit, means for driving one jof the'rolls, and positive means comprising a ratchet device for driv-v ing the apron at a lower speed whenever the press rolls do not drive it ata'speed ygreater Y thansaid lower speed.

2. In `an extractor, the combination with a pair of press rolls, means for. driving the lower roll, and means for pressing the upper roll against the lower roll for the purpose of expressing water from rubber or fibrous vmaplates .for carrying the material, a pair of whereby the adjacent edges of the plates are freefrom each other, a Vdrum at veach end over which the apron passes, said apron being drivenY freely bythe" press rolls,'a sprocket wheel on the shaft of the lower press roll, a larger sprocket wheel on the shaft of one of the drums, a sprocket chain connecting said H Vsprocket Wheels, and a ratchet mechanism bepable of sliding slightly thereon but adaptedV L. i' to engage the weights at the top. Each of;

enthe larger sprocket/wheel and the v :whereby the sprocket wheel and '11o terial, of an endless apron passing between i the press rolls and comprising a series 4of e l :ing said sprocket wheels, and a ratchet mechl anism between the largersprocket wheel andv the drum, whereby.. the sprocket wheel and mechanism, will drive the drum and thereby the apron positively atlower' than normal speed.

3. In an extractor, the `combination with a pair of press rolls, of an endless apron passing between the press rolls, a drum at each end over which the apron passes, said apron being driven freelyby` the press rolls, a

sprocket wheel on the shaft of the lower press roll, a larger sprocketwheelon the shaft of V' one of the drums, a sprocket chain connectratchet 4arrangement wlloperate idly under normal conditions, but when the apronis not driven at a speed as high as that of the vlarger sprocket wheel, the latter, through its ratchet bearings, and-means for Vpositively driving it,

the other press rollV being mounted freely to move up and down rand press on the lower roll, of means for applying Weightsto the upperpress roll to cause it to bear with considerable vpressure on the lower roll, said y3o meansV involving a vertical rod, a weight thereon at the top, asleeve on lthe rod adapted'to be moved up to engage the weight, a link depending from said sleeve, a lever connectedwith the link below the sleeve and pivoted between its Vends, a second link depend- Y,

ing from the opposite end'ofV the lever, and

a hand leverpivoted beyond-the'second link f and connected with-it.v v

5. In an extractor, the combination with a pair .of press rolls, of means for .applying l pressure to the upper press roll to cause it to bear with considerable pressure on ythe lowerl roll, said means involving a vertical rod, a weight thereon, a sleeve on the rod adapted tofbe movedup to engage the weight, a link connected' with said sleeve, a lever connected withzthe linkand pivoted between its ends,

a second link connected with the opposite g. I end ofthe lever, anda hand lever pivoted beyond the secondV link and connected with it, whereby, when theY hand lever is depressed,

. the frst-namedflever will be raised at the end yconnected with the first-'named link Aand will raise said sleeve to release the apparatus of y the weight, said pivots being in such relation to each other that the `twopivotsv at the two Y* ends of the first-named link will be in alignment with the pivot of the rst-named lever, whereby the parts will be retained` in this position when pressure is removed from the hand lever.

i In testimony whereof I have hereunto affixed my signature. l

FRANK FURBUSI-I.

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