US1185532A - Pasteurizing apparatus. - Google Patents

Description

L. S. PFOUTSx PASTEURJZING APPARATUS.

APPLICATION FILED OCT. 15, 9]3- 1,185,532, latvnfud May 30, 1916.

2 SHEETS-*SHEET I.

L. s. PFOUTS. PASTEURIZING APPARATUS.

APPLICATION FILED OCT. l5. I913- 1,185,532.

Patented May 30, 1916.

UNITED STATES PATENT OFFICE.

LEROY S. PFOUTS, OF CANTON. OHIO, ASSIGNOR TO THE MILLER PASTEURIZING MACHINE COMPANY, OF CANTON, OHIO, A CORPORATION OF NEW JERSEY.

PASTEURIZING APPARATUS.

To all whom it may come r Be it known that I. LEROY S. PFoUTs, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in and Relating to Pasteurizing Apparatus, of which the following is a specification.

This invention relates to pasteurizing apparatus, and particularly to apparatus adapted to treat liquid, such as milk.

I have illustrated my invention in con nection with a liquid treating apparatus such as shown and described in my application filed January 25', 1909, Serial No. 474128. It Will be understood. however,

that my improvements in liquid distribut ingand holding mechanism for pasteurizing apparatus may be used in connection with. a. liquid treating apparatus of any suitable or preferred construction and while the embodiment of the invention illustrated herein has been conformed to cooperate with the general construction of apparatus shown in my said application, it may be adapted to suit any articular construction of apparatus in co nection with which it may be us'ed.

-This application is a division of my a, plication Serial No. 740,940, filed January 9th, 1913, patented October 31, 1913, 1,076,604.

Referring to the drawings. which show one embodiment of the invention: Figure 1 is a side elevation of my apparatus open atively connected withthe liquid treating apparatus described in my aforesaid application. Serial. Number 474,128. Fig. 2 is a side elevation. partly in section. of the liquid distributing and holding mechanism. Fig. 3 a horizontal section through the valve mechanism. Fig.4 is a perspective view of one of the valve members. Fig. 5 is a perspective view of the other valve member. Fig. 6 is a bottom plan .iew of the valve mechanism.

In the drawings. A indicates a heater for the liquid. B a preliniinary cooler, and C a final cooler, each of which is shown merely for the purpose of illustration.

D indicates as a whole a liquid distributing and holding apparatus. preferably int erposed between the new. A. and preliminary cooler 13. Tlictheatr-r 1. holding Specification of Letters Patent.

Patented M ay 30, 1916.

apparatus I), and coolers B, C, are preferably arranged in stepped relationship to each other in order that the liquid'niay flow by gravity from one to the other and finally be discharged by the discharge pipe, indi rated at 0, carried by the final cooler (l, into any suitable receptacle. Preferably the floor 1 for the apparatus 1) is elevated, as shown at l". to provide for the proper flow of the liquid therefrom to the preliminary cooler li.

The heater A comprises an inner rotary vessel (/3 connected with a driven shaft a and adapted to hold a heating niediui'n; an interinel'liate vessel a. surrouiuling the ves sel a; and forming therewith a liquid film space (/9; and an outer vessel of, surrounding the inner and intermediate vessels It, a and adapted to form with the outer walls of the latter vessel. a chamber to receive a suitable heating medium.

The shaft I1 is geared to a driving shaft (i. which mounted in hearings in a pod estal the shaft of may be driven by a suitable motor. such as indicated at a.

Each of the coolers ii and comprises an inner ivitary vessel if. coniuzcted with a driven shaft. '7: an intermediate vessel and an outer \csscl 'lhese essels are constructed and arrun .l relatively to each other to form a liquid. film snare. and a spare or chamber on opposite sides of the film space {or a suitable cooling medium.

The shai'ts b. of the cl' olers B. (l. are connet-tell to and driven by a (l: 5112 sha" o wl ch is mounted in bearings provided therefor in the base. indicated at (i on which the preliminary and linal c olers. B,

U. are mounted. The shaft may be driven tron: any suitable source of power, such as a motor The heater A, and coolers B and C, are

constructed. generally, and operate similarlv to corresponding parts shown and described in the patent issued to John C. Miller on the 4th day of February, 1908, and numbered 879.2525; and as the particular construction of each thereof forms no part of the present inventioi'i. further description of these parts will be omitted. as they are fully shown and described in the aforesaid patent. to which reference may be made.

Of the distributing and holding appara tus D, 2 indicates a base of any suitable conpplicatioa filed October 15,

struction. but preferably formed from metal and having feet 2. 2 indicates'a sup port. preferably bolted to the undersideof the base 2 and provided with anaaxially ar ranged cnd thrust beariifg or socket 2 for the lower end of a v tical supporting rod extends upwardly a suitable The roc a distance and carries at its upper end a valve member 4, of a valve 'inechanism l which will belater described. The member 1 is provided with a socket l which receives the upper end of the rod 3 and permits angular adjustment of the member 4 thereon.

2 indicates an annular wall surrounding the rod 3. This wall is mounted on the base 2 and is preferably formed integral therewith. It serves as the shaft or axle for a rotary member if, the hub :3 of which rotatably tits annular wall or shaft 2. At

the point of connection between the wall 2.

and base 2, a bearing shoulder 2 is provided, and interposed between said shoulder and the adjacent or lower end of the hub 5 are anti-friction bearings of a. well known type on which the rotary member 5 rotatably supported.

The rotary member 5 preferably comprises a carrier having a plurality of arms 5", which preferalflvy extend radially, a series of brackets 5, one of which is carried by each radial arm 5, and an annular table or support 5 supported concentrically of the axis of the rotary member 5 by the upper or free ends of the brackets 5.

The carrier 5' and hub 5 may be formed integrally. The upper sides or faces of the are substantially flat and serve as ibases to which the brackets 5 are bolted, in a well known manner. The arms 5" may be provided with front and side walls 5*, which strengthen them from end to end. T he arms 5 are uniformly spaced from. each other around the axis of the rotary member 5 and thus provides supports for the table 5 around its entire circumference.

5 indicates members depending from the arms 5*. to the lower flanged ends of which is secured a worm gear 7. by screws or bolts 7 in a well known manner.

'7 indicates a bracket, carried by the base 2 and provided with bearings for one end of a driving shaft 7*.

7 indicates a worm or screw secured to the shaft 7 and meshing with the worm gear 7 to continuously drive the latter.

7 indicates an auxiliary support, preferably adapted to be fixed to the floor 1.. This support is provided with suitable hearings to receive and support the opposite end of the shaft 7".

7 indicates a motor, of any suitable type, which. through suitable gearing indicated as a whole at 7, transmits motion to the shaft 7".

As will be clearly understood from the drawings the gearing 7" and the worm 7 and the. worm screw '7 serve reduction gearing, whereby the speed at the rotary member 5. as compared with that of the motor T' is relziti'vcly slow.

The bratkets 5 age preferably arranged to incline or extend outwardly so as to provide supports for a table 5 of relatively large size. their free ends being horizontal in order to support the table in a. horizmntal plane.

The table or annular support 5 preferably comprises a series of are sectimis 5" arranged end to end and each flanged along its opposite side edges to strengthen it. The sections of the table 5 preferably bolted to the brackets 5 in a well known manner.

5 indicates a. plurality of openings formed in the table 5 adapted to receive a series of independent or separate holrl'ingvessels 8. The openings 5' are preferably uniformly spaced from each other and disposed mid way between the brackets The valve mechanism 4.- includes -a valve seat element 10 which coiiperates with the valve. member 4*- to control the flow of the liquid to and from the vessels 8. The valve member 4 preferably comprises a circular plate 4 provided with a depending rim or wall 4*. which may be of conical shape. At one side and between the plate and rim l, the walls of the valve member 4: are thickened and formed with two ducts 4-, 4. The duct 4" serves as the conduit for the liquid as it flows to the vessels 8, its inner end opening upwardly and centrally of the valve member 4 and its opposite or outer end leading through the rim 4*. The duct 1 conducts the liquid through the valve memlmr when a. vessel 8 emptying, its receiving end or port leading through the rim if, and preferably adjacent to the port of the duct 4, and its opposite or discharge port opening downwardly as shown in the drawings. The val e seat element 10 preferably compris series of openings. 10 crwrcsponding in number to the number of holders or vessels 8 and each adapted to register successively with the ports of the ducts i Q, in the mem-- her 4* as said ring member rotates thereon. The inner wall of the ring member is shaped to snugly fit the outer conical Wall of the member 4 to prevent leakage of the liquid.

10 indicates a series of pipe sections, preferably formed integral with the ring member and extending radially therefrom, there .he-- ing a pipe section for each opening 10 The function of the pipe sections will be later described. A

The vessels 8 may each comprise inner and outer walls to form a space between them. This space may be filled with cork, as shown at 8, or some other non-conductor of heat to provide a suitable insulating jacket. Each of said vessels is preferably s a ring member formed with provided with a detachable cover 8", and a.

duct S in its bottom, a suitable pipe section 8 being provided for said duct and adapted for conveying the liquid to and from the vessel as will be later described.

8 indicates a flanged ring secured to the outer wall of each vessel 8. As will be understood from the drawings. when a vessel 8 is inserted in an opening 5. the flange of the ring 8" will engage with the upper surface of the table 5 and serve to maintain the vessel 8 thereon. T his construction serves to support the vessels in upright position and to permit their rcn'ioval at will for cleaning or other purposes.

9 indicates a receiving chamber preferably arranged substantially axially of the holders 8 and slightly elevated relative thereto to permit the variable flow of the liquid by gravity to the holders. The chamber 9 is rovidcd with a suitable cover tl'irougli which extends the discharge end of a pipe of", which conducts the liquid in a. substantially continuous and uniform manner from the liquid trough ordischarge duct of the heater A to the chamber 9 of the distribut ing and holding apparatus D. The chamber 9 is preferably formed in two parts, an outer member 9. and an inner member 9", between which is provided a suitable insulating jackeb 9. The jacket 9 serves to maintain the liquid in its heated condition. The chamber 9 is provided with an outlet pipe section 9". which is dctachably connected to the upper end (if-a conduit 9*, by a coupling 9 duit 9 is detachably connected in a well known manner to a coupling 9 which in turn is screw threaded in the inner end or opening of the duct -l. The pipe or conduit 9 and its connections With the chamber 9 and valve member 4 may serve in part as suitable means for rigidly supporting the chamber 9 upon the base 2 and at a suitable height to etiect the flow of the liquid through the apparatus.

11 indicates a depending discharge pipe connected with the discharge end of the duct 49. At its lower end, the discharge pipe 11 is connected with a. delivery pipe 6 which conducts the liquid to a receiver 12. the flow of liquid through the pipes 6 and 11 from the holders being variable. A cut ofl cock or valve 6* may be provided for the pipe 6.

'12 indicates a discharge pipe leading from the receiver 12 and arranged to convey the liquid in asubstantially continuous and uniform manner to the receiving tank If for the preliminary cooler B. A valve 1:2" may be provided for controlling the flow of liquid from the receiver 12- to the tank 7;.

The receiver 12 is preferablv mounted on a standard 12". It may be dispensed with if desired, inwl ich event the liquid will be The lower end of the conconducted directly to the tank I). The tank I) permits the liquid, after treatment in the holding apparatus 1). to be inspected.

10 indicates a. pipe, leading from the, outer end of each pipe section 10 to the adjacent vessel As shown in the drawings. the outer end of the pipe 10 leads to and is connected with the pipe section 8 of the vessel by a T-nlember 10 and coupling 10, The opposite or inner end of the pipe l0 is connected to the outer end of the pipe section it)" by a coupling 10 in a W611 known manner.

The pipes 10 and their unions with the vessels 8 and pipe sections 10 serve as rigid connections between the. valve seat member 10 and vessels 8, whereby the revolving movement of the latter is transmitted to the valve element 10 in order that the latter will move with the vessels, as a unit.

From the. foregoing description it will be understood that the ring member 10 and walls of the member 4* constitute a valve mechanism which controls the flow of th liquid through the pipes 10, to and from the vessels 8 as each opening 10" successively registers with the openings of the ports 4*,4.

During the time that the valve port 10 for an adjacent vessel 8 registers with the duct 4". as the vessel revolves, liquid will flow therethrough from the chamber 9 to the vessel to fill the same, the speed of the rotary member 5 and the size of the valve openings 4" being proportioned so that during the registry thereof sufficient liquid will flow through the valve to substantially till the vessel.

The liquid is held in the 8 during its revolving movement until its valve opening, 10* registers with the port of the discharge duct 4, whereupon the liquid will flow by gravity from the vessel through the valve opening 10 and duct 4 to the discharge pipe 11. As the ducts 4". 4. and the valve ports thereof are of substantially the same size, and the rotary member 5 rotates uniformly, it will be understood that substantially the same'quantity of liquid will flow out of each vessel as flowed into it in the same time interval.

The valve port for the duct 4, is preferably arranged in the rim 4: immediately behind the valve port for the duct 4', so that the filling operation for each vessel will follow immediately after it has been emptied. This arrangement also provides for the operation of filling and emptying adjacent vessels simultaneously.

As the vessels 8 are arranged in a circular series and revolve around the valve member 4*. provision is made for bringing a vessel into filling position immediately after the preceding vessel has been filled and moved out of that position in order that. the filling operation may be progressive,

lllHEWlSQ by i 'irovidinglj a disrhargo duct with which i'hc valvc ioris for tho vvsels rrgis l si rssively provision is made i'ore-nipt p ingz the vessels in a giii'osjrcssivc manner. While the oil'ort of this construction and oprration to produce a more or less varialilo and intermittent ilov: of tho liquid through tho apparatus. zho appa 'tus may lug so proportioned to the apparatus to whirl] it: (l ll\'( as to give completely sat- -1l :1 t(,=l results in connection lhcrcwitl'i.

j di a iipo or conduit leading fr m the pipe: at and connected at its outer cud to a delivery pipeo. A valvc proton aiily of tho three-way typo may hc inter post-d atv tho ('OHHUCtlOI] of the pipe 13 with the pipe to control ihr How of the liquid ,to oithor l'llllml hiifiljlillull and holding apparatus or direct to the cooler ll, or to cutoff tho llow of tin) liquid entirely. pipes and W may he used to conduct the liquid from tho liralcr A to tho coolcr ll. vhun it is unnvci my to treat the liquid in llH' dislrilmting' and h lding apparatus 1). 'llw pipes l1 and ll?- inay ho formed in sectious and rouuc tud togr-thcr liy couplings iii in a null known manner.

It will he undcm that in the system f pasiourizinn' liquid to which my invi u. tiou, i gmrticularly an) alilnaizil in which tho liquid inn} ainoo. at a iiasirurimng icing ralurr for a 1.=rcdrirrniincd poi-huh it is dosii'ahlo to quickly and uniformly hrat iho liquid to t l'ilitlilt'PhilllQLl tcnnimatin-c niainlain Ha,- liuid at Llmi lcin 'inratun,- l r a urtain definite lcnglh oi tinic in order Io do n1 rcmli-r innocuous any mins or l, -;i 'l(2'itl lllllllllllfll. in tho liquid and finally to cool the: liquid t a noiuzal and limit it 7*,

- rhzill iv. xvii out in ll illlkl tho iival r owl; may dcl more or in; i

lhcso rcsults arc all acrom ilisliml in the apparatus herein (ltsilillkii and iilustrairih as ill lic more tally uiulcrstood from tho following dcscs'il'iial operations: l lH liquid ih-livcrod to a sccoivinc tank inning; a (llS-l'liiilfik pipe: IL. which operalr-s as a snpyly moans and rom which it flows by avity to the heater A In passing lhro I ll hralor the liquid is sud richly and uni lorinly ra rd to tin) (icsirvtl toinporalurc and is (ll hargcd from tho hratcr liy moans oi'lln': npo (1." which conicvs tho liquid in a r ntiuuous and uniform manner to tlw riaw rhainhcr 5% As tho carricr iiand was E carried thrrchy rcvolvo. the vain: o i rnings 10" in th s. ring valve 10 rrg'islcr succossivol v with the duct l of thc valvcincniber 4 and per- The wit a yredctrrniincd quantity of thc liq uid to flow variably by grzivit to each of the vessels. each valve port registering with thr- (lurt for a given period of time, in the rotary movement of the carrier, sufiicient, at lrast, to substantially till the adjacent vessel. liiliciviso, the valve openings 10 of tho valve ring 10 register successively with tho discharge duct 4 and permit the automatic dischargev of the vessels succcssivcly.

Tho valve duct 4. of the valve mechanism l may b0 arrangcd at anv predetermined point angular-1y of tho axis of the carrier relative to the port 4, so that the distance of travcl of the vesscls from the position for filling in imposition for emptying may he oi proper length in order that the poriod for holding; the liquid may be fixed according to any particular circumstances desired. From this constructimi and operation it will he soon that the vessels will be automatically l'illml and emptied at predetermined points, and that the liquid in each vessel. Will be held therein for a p'rcdctermined period, tho oxtrnt of which depends upon the length and time oi travel. from the place of filling Ir, tho place of discharge. It will be obvinus that tho speed of thc carrier can be rrraso ilw period lictwccn the filling and i-undy'ing of the vcsscls.

The tank J. being (llSl'lOSHl lietvv'ecn tho licalor f\ and the distributing, and holding ai paralus D, prrmits the material to flow in a, variable manucr to each of the tanks 8, suci'rssi cly. without affecting its continuous and uniform flo from the heater A through tho pine al It will he understood that as the port 4' movcs into and out of registry wilh cach opening it): tho flow of the material at first very slow and gradually in creases until the portl and opcning 10 are in romplotc registry; then tho flow of mate rial gradually decreases until it is entirely out of? by the continued rotation of the valve seat member 10; as a resultof this operation tho material is caused to flow in a variable manne from the tank 9 d uring the filling of rach vcssol 8., first rting' from zero and increasi11g until a maximum flow is reached and than decreasing: hack to zero. Thus the ta ii 9 scrvcs as a means in pcnnit the change of Fir-w of the material from the heater A to distributing and holding apparatus D, so that: the flow of the material through and from the haiatcr may Toe oontinuous and uniform. l iili'ouiisc the tank 12 (or the receptacle b when the tank 12 is dispensed with) serves as a means to permit the material, which flows in a variable manner from the distributing and holding apparatus D through Llic pipe 6, to flow to and'through the cmlers B, (I, in a substantially continw ous and uniform manner.

It will thus be seen that I have provided means on opposite sides of the distributing and holding apparatus D which first permit the flow of material to change from one of a substantially continuous and uniform character to one of a variable character and, after passing through such apparatus, then to permit the flow of material to change back to one of a substantially continuous and uniform character.

I am aware of the fact that it has been heretofore proposed to provide apparatus for treating or pasteurizing milk, cream or other liquids in which the milk was heated to a paste'urizing tl-flllptllltulfi while flowing continuously, was then maintained at the pasteurizing temperature for a sullicient period of time to destroy or render innlicuous the bacteria without cooking the albumen in theniilk, and without the discontinuing of the flow of the milk while being heated, and then cooling the milk, as for e ample as disclosed in Letters Patent of the United States No. 684,319, to Frederick G. Short, and I do not lay any claim broadly to a. process of treating milk or other liquids and to apparatus such as set forth and dis closed in the said Short patent. Qn the coin Mary, I have sought to provide improved apparatus for the treating of mill; or other liquids by first heating it to a pasteurizing tlllpclfltlll'6,tll0ll holding it at that temper ature for a, predetermined time, and then cooling it.

It; will be noted that all walls of the conduits and receptacles in the holding niechanism. with which any liquid to be treated may come into contact, are readily accessible for the PUYPOSU of cleaning; merely by disassei'nl'iling adjacent part or conduits. he impm'tamc of this in the sanitary handling of milk, for example. is well known. Fillther, it will be noted that the mustruction of the valve mechanism is such that liquid from the source of supply always flows in one direction through the valve inlet duct to the vessel ducts, successively, and also always flows in one direction through the valve discharge duct from the vessel ducts. successively- This enables me to establish a dellnite and permanent relation between the source of supply and the inlet duct through the valve mechanisn'l and a definite and permanent relation between the outlet duct through the valve mechanism and the discharge way.

To those skilled in the art of making apparatus of the class described, manvalte ra tions in construction and widely (littering; embodiments and applications of my invention will suggest themselves, withoutdeparting from the spirit and scope threol. My disclosures and tlie description h "em are purely lllllStl'lltlVfi"dIl(l are not intended to me in any sense limiting.

What I claim 1. In a system of the class described for paste u-iaing milk and other liquids, the combination with a liquid heater and a liquid cooler, of a plurality of holding receptacles, means for conducting heated liquid from said heater to the lower ends of said receptacles to fill to the extent desired each of said receptacles, one after the other from its lower end, so that all the liquid held by each said receptacle will always enter it from the lower end thereof, and means for conducting said heated liquid from each said receptacle, after it has been held therein a predetermined time, to said cooler.

2. In a system of the class described for pasteurizing milk and other liquids, the combination with means for heating the liquid to be pasteurized as it flows in an attenuated stream, and a liquid coolhr, of a plurality of holding receptacles, mans for conducting heated liquid from said heating means to the lower ends of said receptacles to fill to the extent desired each of said receptacles, one after the other from its lower end, that all the liquid held byjieach said receptacle always enters it from the lower end thereof, and means for conducting said heated. liquid from each said receptacle, after it has been held therein a predetermined time, to said cooler.

In a system of the class described for pasteurizing milk and other liquids, the combination with a liquid heater and means for cooling said previously heated liquid as it flows in an attenuated stream, of a. plurality of holding receptacles, means for conducting heated liquid from said heater to the, lower ends of said receptacles to fill to the extent desired each of said receptacles, one after the other from its lower end, S0 that all the liquid held by each said receptacle always enters it from the lower end thereof, and means for conducting said heated liquid from each said receptacle, after it has been held therein a predetermined time, to said cooling means.

1. 111 a system of the class described for pasteurizing milk and other liquids, the" combination with means for heating the liquid to be pasteurized as it flows in an attenuated stream and means for cooling said previously heat-ed liquid as it flows in an attenuated stream, of a plurality of holding receptacles, means for conducting heute liquid from said heating means to the lower ends of said receptacles to fill to the extent desired each of said receptacles, one after the other from'its lower end, so that all the liquid held by each said receptacle always enters it from the lower end thereof, and means for conducting said heated liquid from each said receptacle, after it has been held-therein a predetermined time, to Said cooling means.

In a sysiom of tho ('lZlSb descrihi-d for pusteurizing mill: and other liquids, the combination with u liquid lloulrr and 1L liquid cooler, of u pluruliiy of holding 1'0.

5 centuries, a ooi'nhinell filing nnd emptying (lint lor emu said EPlgQjlllUllB communicating at one and w*' said irrcj'fiuole no its lower end, and hav ng al ils other end in combined inlet and discharge port, liquid conducting 11mins enlri'lding from said hontor and including an inlrl; duct having a discharge, portarrungcd to register with said (ioinhinod inlet and discharge porlsv of said xi'l'inihinegl filling and emptying ducts, one. 16 nl'lor the other, whorehy the heated liquid always flows; in one direction only through said inlet. duo: im l than into the lower end of our-h ol' dlll holding receptacles to fill it. to the (extent dosh-ed, a discharge duct having an inlet port arranged to register with said cifnuhilml inlot and discharge ports of said ronihined filling and emptying (lusts, one ul'ler the other, a prodelei'inined period after each said holding romptnolo has been filled to the extent desir ill. with heated liquid as aforesaid, and through whirh dis charge duct the liquid from ouch said holding receptacle always. flows in one (lira-Lion only, and means for conducting the liquid discharged from said discharge duct to said cooler.

6. In l1 systei'n of the class (lOSCIllJBd for pl'istourizing milk and other liquids, the combination with a liquid header and 2L liquid coolor, of :1 plurality of holding roooptacles, a COIIllOlIlPCl filling and empiying duct for each said rnoeptzlolh communiriiting one end with said rocr-ptarlo at its lower and and having at; its othrr and :1 combined 40 inlet and discharge port, liquid. conducting "ms; extending from said lieutoruncl in-- him; inlet, duct having a 'llisohargo 'orl sir lingz ul to register with said coninod is and dischurge. porls of said ronil emptying duels, one :i'l'lior i lll s heated liquid always no only through said in 3. lo aha lower and of each 'luwlus to fill it to the exirl h ving an in- 'l with said oomorts of said comiluijzts, one after l d after each 1 101" Lrlt ll hril filled to the vd x .ilh luzilol l quid as. aforesaid, and ihrough which illfilflllll'gl (lllltthe liquid from each said holding: l' rvyllieh 3 ways flows in one (lirrotion only, moans lot conducting tho liquid discharged i'rmn mid discharge duct to said cooler, and means for ell'ect-ing communication holwoon said. dis charge portof Said inlet duri and said inlet port of said (lischurgo dill-t, i'onpoctive ly, and said combined ports of said izoinhinod inlet and emptying duels, (mo after rho other.

7. In a system of the chm; ilrszrrilgll for pasteurizing liquid tho CUllllJlfllLlUll with means for heating tho liquid to he pnslcurized as it flows in an altoiiiiuled slirciin'l and means for pooling suicl PHUO! V luwilrd liquid as it flows in un utl'vnimtod dream, of a plurality of holding rrceplnolos :i uonibilled filling and on'iptying duct, for each said roreptuolo communicating at our: end with Sill 'l receptacle it li'S lower mill, iillll having at its other 0nd :1 romoinoil inlul and discharge port liquid commuting menu? ox-- tending from said heating 11mins dllil in eluding an inlet; duct ha ing a (lisrhzirgu port arranged to rogistvr with said romliined inlet and dirohurg'o ports of Rllll, comhinod filling; and filliptyllllf din-ls. on iil'lor llw olhor, \Yllf'lllly he hozitrd liquid always llows in one direction only through said inlet duct and then into lho lowm' mid of each of said hrlilding receptacles to fill it to the extent desired, :1. discharge duct hiiving an inlet port arrnnu'vd to 1'r,;1'i tlr r with said comhineil inlol; and discharge. ports of said ooin iinod filling; and ornplying durti one :iftor lho other, :1 prrllolorminril purioil lifter ouch said holding i'rro it'nch: has horn filled to the extent di siroil with iezilml liquid as aforesaid, and Lln-ouyh "h m: :lisw chin-go duct the liquid from rzwh mid hold-- ing rrovpturlo :ilwufvs ll-nw in onv (lirsrlion only, means for (IUllllllllliQ the liquid die;- ohnrgxed from Quid (lisrhnrgv dinlo said cooling moans; and menus for rile-r lug LOlll munimition hctwoon rid dia -(hi; port of M ll inlet duct and mini. inlol port, of zuill (liscl'lzirgo dust, rrs; -l\1 ii i l (our liined ports of V mniliinrll, lllli i, and

ompliyin luois, one alter the H'l JR ln ti. molly whore-oi l {llllX m f'gnuliiriin tho presrnov of loo wih'n lll lllirli" lhlill l'r \Vitnoasses:

\ViLLIA M, H. Mnilmz,

F. ll". BREED,

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