US1230328A - Automatic sugar-washer and water-measurer for the same. - Google Patents

Description

4 SHEETS-SHEET I.

1. SAILER. AUTOMATIC SUGAR WASHER lAND WATER MEASURER FOR THE SAME.

APPLICATION FILiD MAYE. |915. 1,230,328. Patented June 19, 1917.

, @I II Ic Y I IIIIIIQ, i y dw A I x 41 c w f I I 1min.. Y 5/ Y I n I I y 1. SAILER. AUTUMATIC SUGAR WASHER IAND WATER 4MEASURER FOR THE SAME.

APPLICATION FILIU MAY 5.1915.

' Patented June 19, 1917 `1. SAILER.

AUTOMATIC SUGAR `WASHER AND WATER MEASURER FOR THE SAME.

APPLICATTON HLED MAY 5.1915.

Patented J une 19, 1917.

4 SHEETS-SHEET 3.

1. SMLER. AUTOMATIC SUGAR WASHER AND WATER MEASURER FUR THE- SAME.

APPLICATIONV FILED MAY'5. ISIS.

Pai-@med J luie 19, 1917.

I E mulini.,

lwplr trade nameof masse-culte or fellmass,

In this art a batch thrown `ofi' y from the charge of sugar byv y California,

vcentrifugal force,

` automatically reciprocated up UNITED STATESV JOSEPH SAILER, 0F OXNARD, CALIFORNIA.

AUTOMATIC susan-WASHER Nn Application led lay 5,

To all whom it may concern.:

Be it known that I. Josera SAILER, a citizen of the United States, residing at Oxnard in the 'county of Ventura," State of 4have invented a" new and use- -Washer and Water- Vful Automatic Sugar of which the follow- Measurer -or the Same, ingA isa specification.

The invention relates to the sugar refiningart and particularly to the purging 'and washing'` of the sugar crystals, in which process of this art the pure sugar crystals are separated from the surroundlng mother liquor ina mixture of the two. This mixture of pure sugarcrystals and the impure mother liquor is'commonly known bythe of fellmass isplaced in therotating perforated basket of al centrifugal separator, the batch of fellm'ass being held against the inner side of the basket by they molasses or thel -un-` .crystallized portion ofv the syrup being centrifugal actionf the bath is sprayed suitable liquid, for the oli the molassespor mother liquor fromthe The inner surface of with water, or other charge of sugar, the basket being rotated during the spraying.

l The principal'objectof my invention is to provide an automatic sugar washer; which will introduce the water -evenly over the inner side 'of the rotating charge of sugar by the use of a film nozzle, the film nozzle being and down inside said basket to evenly water over the' batch of sugar. 4Affurther vobject of the invention is to provide means for holding said film no z'zle when not' in' use in such -a position that itis entirely above of the invention is 4and free 4from the basket. A further object to provide means `,which can.A be automatically set to measure etheamount of water passed to the .batch o massl and to automatically shut oit the .der

supply as soon as this predetermined amount has been passed.

Referring to the drawings which* are for illustrative 'purposes only: l

Figure l is anelevationjpartly in section` of my invention appliedl toa. Vstandard form of centrifugal sugarlseparator.

l `ig. 2 is a sectional elevation ofthe sugar washer proper. I 4 Fig. 3 is a sectional elevation on the. plane Specification of Letters Patent.

purpose of washing distribute the.

Patented June 19, 1917..

1915. serial No. 26,111..

@Las of rig. 2, looking in the direction of the arrows. y Fig. 4 is a partial section on the plane4 mof Fig. 3, looking in thedirection of the arrows. A

Fig. '5 is a section on the plane :eL-w" of Fig; 2,

arrows.

Fig. 6 is a section on the plane :vf-w.' of

Fig. 2, looking in .the `direction 4of the' arrows.

Fig '7 is a section on the plane J-' of Fig. 2, looking in the direction Hof `the arrows..

Fig.4 8 is a plan viewof water lneasurer, and

Fig. 9 is a section Fig. 8, looking in arrows.

Fig. 10 is a. diagrammatlc Vview lof the.

the 'automatic` on the planewL-fof' the direction of the' looking inr Ythe direction Vof the washer mechanism'in what is hereinafter.

called position one.

Fig; 11 1s a view of same in position two. i

Fig. 12 is a view of same in-V position three.-

Fig. 13 is a view of same in position four'.4

y Fig.- 14 a' view of same in position live.

Fig. 16 is a view of same in position seven. In Fig.V 1, a centrifugalsugar separator 11 Iisshown provided with a ,fellmass cht'e'or goose neck 12 having a 'gate 13,"f e1l1`nass being taken through the chute-12 and the. gate 13 intothe interior of the'v separator. rator is provided with'e i basket, 15 which is ri 'd tral shaft 16, the, from any suitable-source, -not shown, by a belt 17 passingover a'pulley 18.,""A5 batch .lper-forated rotating' the rotating baslnzst` 15 by ,centrifugal orce thrown off by centrifugal force ast-,he basket being so shaped astothrowthe watpr in a solidfilm against the; batch "uf suga water 'at 'high 4velot'vity'ageinstithe dem The sepa- Fig. 15 1s a view of Vsame in position six.

from va bin r14 and delivered .l

'95 of fe1lmass'19 isheld against the interior thel syrup adhering 'thereto' b emg 'I y A washer 20and a water measurer 21 are secured' to thel -.eentrif\1galA4 separator as h :ma he iilni'nozzle' 23 con` sists of a threaded.'bodyfbr()1 terminating in a dei'lectingplate 31, this? deecting, plate 110.` A constricted 82-thr0ws-thezplate 31, this water beinlg fed into the open-l ing 32 through a centra 'mpening 34 formed in a body 30. A plug33 closes the outer end of the opening 32.

A lower water pipe 35 is threaded in the' opening 34 and projects upwardly through the center of the Washer inside an upper water pipe 36. AA stuilin box 37 secured. on the pipe 36 serves to ma e a tight joint between the water pipes 35 and 36. The stuffing box 37 consists of a body member 38 rigidly secured onvthe end of the upper water pipe 36, a series of packing members 39 surrounding the lower water pipe 35 and a follower 40- threaded in the body member 38 and shaped so as to compress the packing 39 about the lower water pipe 35, the pipe 36, the stuffing box 37, 'and the pipe 35 formf. ing a continuous water ,channel through these leathers being `separated by a washer 46 and being clamped in place by a nut 47 and alock nut 48, these nuts being thread- ,ed on the vbody 42.

Threaded on the lower end ofthe main 'cylinder22 is a foot Valve casting 49 and threaded in theiootwalve casting 49 1s a l main' piston pipe packing-body 50 havlng a cavity formed'therein in which is placed a series of packing members 51, these packing members being compressed by a follower 52 "actuated by a main piston follower nut 53,

the parts 50, 51, -52 and 53 forming a stuif- .fing box V54', the purpose of which is to make a tight vjoint between the main piston pipe 41 and the end of the cylinder 22. Formed on the Jtop' of the main piston packing body 50 is --aVring seat 55 which serves as a bumper for the lock nut 43 to limit the downward movement thereof incase of need. t

,/flhreaded on the upper end o f themaln cylinder-22 is a head 56, this head being l preferably of cast metal and having a cylln- 'der bore l57 in lwhich is placed a'sleeve 58,

. this sleeve being retained rigidly in place by a washer 59 clamped between the end of -the cylinder 22 and a shoulder formedon the head 56, and anupper cap 60 which closes the. upper end of they bore 57. The 'upper' water pipe 36 is threaded in the cap 60 and communicates ythrough an. opening 61' with the interior pf a. washer Water sup- 'p137 pipe 62 which is secured. in a coupling GBthreaded on thecap 60. Slldmg freely inside the sleeve 58V is a. main valve 70, this 107 slidesA freely therein and main valve being carried on a main valve pipe 1 which slides freely on the upper water pipe 36 inside the main piston body 42. Rigidly clamped on the main valve pipe 71 is arst cup leather 72, a second cup leather 73, and a third cup leather 74, these cup leathers being separated/by a first spacer 7 5 and a second spacer 76, the cup leathers bemg clamped between a collar-.77 brazed or otherwise secured on the main valve pipe 7l vand a nut 78 which is secured by a check'nut 79, the nuts 78 and 7 9 being threaded on the extreme upper end of the main yvalve pipe 71. Secured on the main valve pipe 1 is an upper stop 80 and a lower stop 81, the upper stop being bra'zed or otherwise secured on `the mam valvepipe 71, and the lowerstop 81 consisting of a nut 82 and acheck nut 83 threaded on the pipe 71. The 4nuts 82 and 83 slide freely inside the main piston pipe 41, the .stops '80 and' 81 serving to actuate- 4the main valve 70 when engaged by the,

main piston 42.

An exhaust cavity 84, an auxiliary rvalve inlet cavity 85, and a pressure cavity 86 are cut in the outer surface of the sleeve 58, the exhaust cavity 84 communicating with the outside air through a series of exhaust openings 87 and all of the -cavities 84, 85 and.

86 coinmunicati g with the interiorA of the sleeve 58 through'a series of openings`88, 89 and 90. An inlet opening 91 communicates with the extreme bottom of the cylinder 22 adjacent to the ring 55', this opening being controlled by a needle valve 92 consistin 0f a screw 93 Aand a check nut 94.. A stuino box 95 is formed in the foot v alve casting packing 96, being compressed by a `follower 97 whichsurroundsa foot valve supply pipe 98, this foot valve supply pipe V98 extending upwardly. and being threaded in the head 56 '1n open 4communication with an opening 99 formed therein.

In the head 56 is theauxiliary valve 25 .and thelug cock 24. The auxiliary valve '25 is p aced ina bore 100 formed in the head 56 and closed at'either end by threaded caps 101- and 102 having openings p' i 103 -formed ltherein lwhich maybe engaged by a Spanner wrench. A sleeve 10.4 is rigsmall bore 106. An auxiliary7 valve body.

leathers 108 and small cup leathers 109 firmly clamped thereinthe large cup -leathers 108 fitting tightly in the bore 105 yand the small cup leather 109 tting vtightly in s `large cup ylao the bore 106. An opening 110 connects the I left/hand end of the large bore 105 to the cavity 89, and the cavity 90 is `connected by means of' anV opening 111 with the in- .terior of the bores 105 and-'106 at their -juncture. l An 4exhaust opening. 112, in th-j cap 101 connects the extreme en d of thebore idly clamped between the caps 101 and 102,

'this sleeve having a large'bore 105 and a- .WIOGMWit-hv the outer air. i The plug cock consists of a tapered plug 113 which is turned by a handle 114i. An air supply pipe 115"isseeured in the head 56 over the top of theauxiliary valve 25, the air from the pipell passing through an opening 11G `formed on the outer surface'o'f the sleeve i the interior oi' the pipe 9S so that air pressure is always sliipplied through the pipe 98 to the .bottom of the" main cylinder' 22.

Thenthe'talnired plug 113 in the operative condition, the opening 11G is 1n open "communication tl'lrough an opening 118 with the interior of the bores 105 and 1013 near .their juncture thereof, and thisopening 118 is always in open con'lmunication with the opening 111 so` that air Linder pressure is supplied tothe cavity 9U Whenever the han- `uslceve 104, the cavity123 'communicating y"opeiliugs 120`swith ,i'ninncating with the "dle .114 is in the operative position. When f the" handle-:114` is thrown to the,inoperativel position, the cavityr 118 is connected through an exhaust port 121 comouter air. A series of small openings .122" vcocomunicate with a through .f1.vl1ole124: with port 12:7 in the upper portieri ofthe cylinder 22 near the top thm-cof. An. air pipe r130 is tapped into the side ot' the head 5G Icommunicating through an opening 1511 with the cavity 90 which is supplied with Vair whenever the Washer is `air finden pressure `during this time.

y in place by gon" thebody 161.

pipe therefore containing The opera ting, the

which are connected into outer heads 152 and 1551 of thowater mcasurer 21.

`The outer head 152 is secured on the end of the main cylinder 154 by a nut 155. `An

-adj usting holt 156' is threaded through the (center oi'vthe. head 152 and a measuring` scale 157 is secured to the head, a ring 158 y'onthe bolt 156 cooperating with a scale 159 to `indicz'tte the exact position of the bolt y 15G and thereafter the position of a main piston 160 which slides freelyin the cylinder 154. The main piston 160 consists of a .nain piston body 161, cup leathers 162 and 1611 separated h v awasher 164. andyclamped a nut 165. and a bolt 166 secured The head 153 is secured ou an `inner head casting 167, this inner head casting haring a bore 168 in which an auxiliary piston 1G!) is free to slide. This piston consists of cup leathers 170 and 171 secured on the body' 172 by means of a bolt 173 and' a. lock nut 174, a spacing washer 17 .ri serving to separate them. A projection '178 'fs centrally formed on the end of the body 172. rl`he"borc 168 'is closed by a washer having a central opening 181 an opening 183 formed therein, the space between the. washer 180 and 182 forming a valve rhambeii' 184 inwhich a ralve-185 is pla-ced, the valve consisting oli rubber washers '1% and 1.87 secured on a body 188. A `rompi-essieu` spring 18) is placedbetwcen the body IHS and the washer 182 `orthc purpose of normally holding the` washer 186 againstrthe washer 180, thereby closing the .drole 181. fluted stem 190 formed on thc body 185 projects into the hole 181 for the purpose ot' guiding the valve 185, and a ll uted stem 191` projects into theihole `183 for the saine purpose. Tater from a (tank or other source of vsupply is `conducted through a pipc`192 into the valve chamber-184, this water passing freely through the opening 183 into the interior of the cylinder 154 when the parts are in the position shown in Fig. 9. A. water outlet pipe `193communi.- eates with the interior. of the bore 168 below the washer 180, this pipe 193 eommunicab ing `with the pipe which supplies water jto the interior of -t le washer, this water passing downwardly through the Washer to .the `film nozzle 23.'i

pen communication is'provided between `the 'valvecharnber 181` and the interior of the cylinder lrithrough openings 195 and 196. The opening 195 is controlled by a body`198, the needle valve 197 having a stein 199 passing through packing 200 which is compressed by a follower 201 which is also threaded in the needle valve body 198.

The method of ,operation is as follows:

When the various apparatus is not in op# eration, the handle 114v and the plug 24 are turned to the inoperative position, the foot valve supply pipe 9S beingin open communication with the pipe 115 through the groovey in the tapered plug 113 and 'through the opening 116. t the same time the open ing 118 is vin open communicationwith the outer air through the opening 120 in thetapered plug 113 and through vthe exhaust port 121. Air pressure is therefore exerted against the bottom of the main piston 42. The main piston 42 is therefore held in the extreme upper end of the cylinder, the end of the piston contacting with the upper stop 80 and holding the main valve 70 to its ex' treme upper position, this position of the various parts being hereinaftercalled position 1 and shown diagrammatically in Fig. 10. In this position the exhaust openings 88 are closed by the piston leather 74, the openings 89 and 90 communicating with the interior` of the sleeve 58 which is in open communication with the interior yof the main cylinder 22. The openings 90 `a re in open communication with theiouterneedle' valve 19,7" threaded in a needle valve no tendency for the parts to move, the main piston 42 being at the extreme t'op of the r cylinder 22, the main valve 7 0 being at the extreme top of the sleeve 58, and the auxiliary valve body 107 being in the 4 position shown in Fi 3. With the parts in this position the 1m nozzle 23 is in the ositi'on shown at A in Fig. 1, being entire y above the basket and out of the way.

Since the pipes 150 and 151 are iii open communication through the pipe 130 with the cavity 90 which is in open communication with die"u ver air, there is no air pressure in the ef Jine ends of the water measurer and Ythe valve 185 is seated against the 'washer 180, thereby shutting of communication between the pipes 192-and 193. No water therefore flows through the pipes .193 and consequently no water is supplied to the opening 61 in the top of the washer. Water.

is, however, free to low through the openings 195 and 196 into the interior of the cylinder 154 of the water measurer. This water ressure forces vthe main I:piston body 161 into the position shown in ig. 9, the amount of water taken in to the cylinder 154 being re lated by adjusting the bolt 156.

' hen it is desired to put the machine into operation the plug :cock 24 is thrown into the operative position. This connects the opening 118 with the opening 116, therefore admitting air pressure from the pipe 115 into the space between the cup leathers 108 and 109, pressure being maintained in this 4space during theentire time the washer is in operation. At the same time the openings 120 are thrown out of en agement with the port 121. Pressure is still maintained, however, inthe pipe 98 so that the upward pressure on the main piston 42 is constant.

Owing to the large` diameter of the mainpiston pipe 41 the efective area on the bottom' of the piston is very considerably less than the area on the top so that whenever an equal air pressure is placed on both the top and bottom ofthe main piston 42 this piston is forced downwardly. Whenever the plug cock is thrown into the operative .position the air underspressure from the space between the cup leathers 108 and 109 -flows through the opening 111 into the pressure cavity 86 and from thence through the open'- ings 90 into the interior of the sleeve 58 and into the interior of the main cylinder 22.v The air pressure acting on the top of the main piston 42 tends to force the main piston downwardly, at the same time the air pressure entering the opening through the openings 89` and the cavity 85 is transmitted connects the openings 122 with the air presbeing 'and the constant air sure between the cup leathers 108 and 109, and this a-ir preure flows downwardly through the openings 123 and 124 to -the port 125. The parts at this time are inwhat will hereinafter be called position 2, 7. as shown in Fig. 11, the auxiliary valve being at its extreme right hand position, themain valve being at its extreme upper tion; and the main piston just starting downwardly. As the main pistonstarts down- 7i, wardly it uncovers the port 125 thereby opening an additional channel to` the top of the cylinder 22, the parts at this time being in what may be called position 3, as shown in Fig. 12. The main piston 42 continues to auf move even after the cup leathers 74 over the openings 90, thereby shutting of the air which has been iiowing through these openings into the cylinder, as air is still opening 124 and the ports 122. As the main piston 42 nears the end of its stroke the auxiliary valve 70 is actuated by the main piston body striking the stop 81, the auxil iary valve body being carried down into the "tol position shownin Fi 2 and the iilm nozzle being in the positionv C as shown in Fig..1. The parts are thenin the fourth position, -as shown in Fi 13, the main piston beingl at the extreme ower limit of the stroke, the 96 auxiliary valve being still at its extreme right hand position, and the main valve being at its extreme bottom position. With the parts in this position, as shown in Fig. 2, the ports 90 are completely isolated by the cup leathers 73 and '74, the portsl 88 and 89 being inl open communication through the space between the cup leathers 72 and; 3. The air underpressure is therefore free to, escape from the extreme left hand eiid of the'v 105 auxiliary valve cylinder, this airescaping throu h the exhaust ports 87 into the outer air. e 'air pressure between the cup leathers 108 and.109 always tends'toforce the'valve 107 to the left hand position since the cu leathers 108 are 4larger in diameter than t e cup leathers 109. 'The auxilio. valve therefore moves to its original or le handy position, the parts then assuming position 5, as shown in Fig. 14. In this position 115 the port 125 is connectedto the outer air through the openings 124, 123, the ports 122, and the exhaust port 112. Pressure is therefore relieved from above the mainpiston 42 ressur'e beneath this piston starts it upw y. The main piston does not, however, to the extreme top 1of the cylinder du'e to e fact that the stop is so placed that it .is struck and the main valve is moved upwardly until the cup leather 73 passes over the-openings 89,.there supplied through the port 125, theel ico 'wardly. The main piston 42 moves downwardly until it strikes the stop 81 pullingv the auxiliary valve into position 4*, alr pressure then working to throw the parte into the potqutomatically shut ofi' the flow of water ail) sition 5, Vand the cycle being repeated through positions 6 and 7 tti-the original -position 4.

It is thus seemthat the main piston reciprocatcs up and down actuating the main yvalve 70 which in turn opens and closes ports 'to actuate the auxiliary' valve 107, this auxiliary valve in turn controlling the movement of the main piston. This continues until the plug cock 24 is thrown into the inoperative position. This connects the various parts as Ahas been previously explained, the main piston being iorced up to its extreme upper position and the parts occupying position 1. It will thus be seen that the' film nozzle 2? is reciprocated u and down from the position shown at B inFig. l'to the position C,

When the-plug Vcock 24 is operated the. film nozzle 23 is lifted tothe position A and remains' there` until Ythe machine is again put ixio ration. Y

, e function of the water n'n-asurer '21 is tothe charge of'fellmass as soon as a certain predetermined amount of water has-passed through the measurer.

The water-.measureroperates in the following manner: The various parts being in the position shown in'Fig. 9, the plug cock 24 is thrown into the operating position and the washer .20 start-s to reciprocate throwing the water in a thin film over the charge of fellmass in the centrifugal separator as it moves up and down. As soon as the plug cock 24 is thrown into the operating posit-ion air pressure is supplied to the water measurer through thepipe 130 and througl'i the pipes 150 and 151. A constant .water pressure is maintained in the pipe 192, air

4150 and 151, the pressure per square inch ofthe air supplied through the pipes 150 and .151Hbeing eonsiderablyin excess ofthe pressure per square inch ofthe Water supplied .4 through the pipe 192. As soon as the air is 'in Fig. 9, the projection 178 strikin,f r against the end of the fluted stem 190 and forcing the gvalve 185 upward into such a position that asf the rubber Washerj187 strikes against the 4pressure heilig supplied through the pipes ythe main cylinder 154 below the main piston water pressurc'tluauxiliary piston 169 is held in this position. water flowing through thc pipe 192 into the valve chamber 184 and through the flutes in the luted stcni 190 and the opening 181 to the pipe 193. this pipe being;r connected to the coupling 63 so that the water fiows downwardly through the openf ing 61 into the interior of' the washer and through the pipe B5 Vto the film nozzle 23. At the saine time that the air pressure acts on the auxiliary piston 169 through the pipe 151 it acts on the main piston 160 through the pipe 150, this main piston being `forced downwardlyv by the action of the air pressure thereon. As the auxiliary piston 169 acts almost instantly the opening 183 is' practically instantly closed so that the waterl in 160 is almost immediately trapped. this water escaping from the main cylinder 154 through the openings 195 and 196.' The rate of flow through these openings is controlled by the needle valve 197, this needle valve being set so that the How of water is very much restricted and so that the main piston 160 moves relatively slowly. During the movement of the mainpiston the auxiliary piston 169 holds the valve 185 in its raised position, water flowing through the pipe 192 to the pipe 193and from the pipe 19? to the washer as previously explained. As the main piston 1GO continues to I nove downwardly it strikes against the end ot the fluted stem 191 pushing the valve 185 downwardly and forcing the rubber washer 18T from its seat so that water is free to flow through the. opening 1,83 around the l'uted stem 191. As themainpiston continues its movement it forces the washer 1,86 against the washer 180 thereby Vclosing the opening 181 so that' the How of water between the pipes 192 and 193 is entirely shut-oil' and water ceases to flow through the film nozzle 23. The. washer will continue to reciprocate without water being supplied until the. plug cock 24 is thrown to the inoperative position. thus throwing the film nozzle 28 into position A free from the'centrifugal separator. At the same time the air supply in the pipes 15() and 151 is released and the water pressure acting against the main piston 160 and owing through the opening 183 forces the main piston 160 into its upper position as shown in Fig. 9. The parts of the measurer and the washer are then in their in` operative or initial position and the cycle may be repeated.

The time requiredpfor the main piston 160 to close the. valve 185 and shutoff the How of water between the pipes192 and 193 may be regulated by means 'of tlie`screw-156', this screw regulating the amount of water taken 'into the niain cylinder 154 and therefore regulating the time required to expel this water. The time for the main piston 160 to close the valve 185 may also be regulated by means of the needle valve 197, this needle valve regulating the rate of flow of the water through the openings 195 and l196 and thereby controlling the time required for the piston 160 to complete'its motion.

tel-mediate position near the top of thev basket. f 4 Y l 2. 'A n automatic suganwasher ,comprising a lm nozzle, means for feeding a washing fluid through said nozzl'e against the charge of sugar, means for holding said nozzle in its extremeV upper position so that it is entil-ely out of the basket, means for reciprocating said nozzle back and forth from its lower-positioninside said basket to an intermediate position near the top of the basket, and means for automatically shutting off the How of washing fluid to said nozzle when a lcertain predetermined. amount of such fluid' has passed through saidnozzle.

3. 'An automatm sugar washer for use 1n a centrifugal separator vcomprising a main cylinder, a mainl piston sliding in said cylinder, a nozzle carried by said main piston, means .for supplyingr Water to said nozzle, Avalve means for applying pressure to said main piston to raiseor lower same, and means by which the movement'of said main piston automatically actuatesiaidf valvel means. y

4. An automatic sugar washer for use in a centrifugal separator comprising a main Cylinder, a main piston sliding in said cylinder, a nozzle carried by said main piston, meansI for supplying Water to said nozzle, valve means for applying pressure to said main piston to raise or lower same, an

auxiliary piston, means by which said auxillary piston aetuates said valve means,

and means by which said main piston autr.

matically controls the pressure on said auxiliary piston.l

5. An automatic sugar Washer for use with a centrifugal separator lcomprising a vertiea-l pipe so placed as to proJect inside a charge of sugar carried in said separator, a' nozzle secured to said pipe in such a position that it may throw a Washing fluid against said charge of sugar, means for supplying a Washing fluid to said pipe, auto- A matie mean-s forraising and lowering saidA pipevertically, .and means by which sald pipe actuates said automatic means.

In testimony whereof, I have ivhereunto. t my hand at Oxnard, California, this 24th day of April, 1915.

JOSEPH sA1LER.

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