US1168452A - Centrifugal cream-separator. - Google Patents

Description

3 SHEETSSHEET I C. O. ANDERSON.

HTRIFUGAL CREAM SEPARATOR.

AFPUCA'HON HLED SEPT. 28, \S'H.

am r min C. 0. ANDERSON.

CENTR!FUGAL CREAM SEPARATORL APPLICATION FILED SEPT. 28, 1914.

1,153,452. Patented Jan. 18, 1916.

3 SHEETS- SHEET 2-.

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APPUCA Jan. 18, 1916 3 SHEETS--SHEI 3.

Patented wxw mwbjkww Unites sra'rns CARL OSCAR ANDERSON, OF-LANCASTER, PENNSYLVANIA, ASSIGNOR TO THE CHAMPION BLOWER & FORGE PORATION OF PENNSYLVANIA.

90., or LANCASTER, ZPENNSYLVANIA, A con- CENTRIFUGAL CREAM-SEPARATOB.

Specification of Letters Patent.

Patented Jan. 18,

Application filed September 28, 1914. Serial No. 863,881.

To a Iii/mm ifm'u col/awn:

Be it known that I. CARL Oscar: AJIDEIP son, a citizen of the United States. residing at Lancaster, in the county of Lancaster and State of Pennsylvania. have invented certain new and useful Improvements in Centrifugal Cream-Separators; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form part of this specification.

This invention relates to centrifugal cream separators of that type in which a series of superposed conoidal separating disks are employed at the center of which series the whole milk is introduced, and having means for dividing and separately discharging the skim milk and cream.

The object of the present invention is to increase the eiiiciency of such separators; to simplify their construction and render them more durable and easier to clean and to regulate.

These objects are attained by the novel.

and improved construction of parts whereby the whole milk will be distributed in such manner that substantially the same amount of whole milk will be passed to and through each space between the separating platR or disks, at a substantially uniform rate of flow or velocity so that the maximum separating efficiency will be realized in each space.

The invention will be explained in detail with reference to the accompanying drawings which illustrate a practical embodiment thereof, and will enable others skilled in the art to manufacture and use the same; and

the. claims summarize the novel features of the invention for which protection is desired.

In the drawings :F igure 1 is a vertical sectional viewthroxigh a complete centrifugal separator embodying the invention. Fig. 2 is a transverse section taken on line 2-2 of Fig. 1, looking downward. Fig. 3 is a, view of the distributing sleeve shown in F ig. 1, detached. Fig. at is a side viewof one of the disks on said distributing sleeve. i Fig. 5 is a transverse section online Fig. 3. Fig. (5 is an enlarged transverse section on line 66, Fig. 1, looking downward. Fig. 7 is a top plan view of iiig. 1 with the cover or outer casing removed. Fig. 8 is an e nplurality of points, coinciding with thesl lai'g'ecl diagrammatic iew illustratingfthe action of the milk in a' distributing channel. Fig. 9 is a sectional View like F i'g. 1, illustrating a slight 'modification of the se parator. Fig. 10 is a transverse seetionjon line ].Ol0, Fig. 9, lookingdownward. fig.

11 is a view .of the distributing sleeve shown in Fig. 9, detached. f

The separator bowl resembles iordinary centrifugal separator in appearance; and is composed of a conical b aseflfluild cylindroconicaltop or casing2.. .The latter end of the casingsets withinia flange of the base, and the joint between these parts may be closed'by a packingring 2,;hSUSUhl. The base 1 has an axially disposed YlifiCiil tubular standard 1" rising .from fthe apx thereof. and extending centrally 'throug tubular neck 2" of the casing; and, the e g and base are detachably united by mean'sYiif a nut 1screwed on the upperend of the tubular standard 1* as-usual. .Thebase 1 also has a centfal dependingjtubula r V 1 which is inaXia-l alineinent with the tab. lar standard 1 and is socketed for t gageme'nt of a vertical shaft or not shown) upon which thebovvl is sup in the usual and by which it can be rotated manner. y a The tubular standard 1} has ailaxial 1" in its upper part for the reception o'frthe whole milk, and it is. provided ivithaiakzr tures, preferably radial slots', 1near the hottom of the bore for the exit .ofuthe vvhole milk, which may besuppliedto the bore. 1? bvsuitable feedi being wellknown. J

Reniovably fitted upon the tubular (stands. ard l within the casing 2 is a distribiiting member or .sleeve ,3 which is provided at.

1 in the tubular standard,1", ,with ra disposed vertical hollow project o winch ng means, not shown, such are closed at topa-nd bottom but pp' n tt the inner side forni ing :hannels 3" to receive hereafter refer to thesechannelsiitnasdis tributing channels, or simply channels-f superposed disks grand escape from said distributing sleeve except 'throiighfthe perforations 3. On thelower end of the distributing sleeve is a-fiange 3" by which it is supported upon a shoulder 1 adjacent the baseof the tubular standard may be provided with notches ,3f to -permit the ascent or escape of 1". The flange 3 'aiiy'mikisor cream which 'might work-its way to the center of the bowl beneath said flange. I

Within the separating bowl and exterior to' thedistributing sleeve are a series of cono idal separating disks 4. These disks preferably have 'cyhndric openings at top,

or center, slightly larger in diameter than the distributing sleeve 3, and arenotched" 25' as at"4"'to fit-over the projections 3 which extend radially beyond the inner wall or edge of theseparating disks. The disks 4 "are'ne'sted closely one over the other in the ,usualimaiiner, and theirouter or lower edges callyfilling the entire interior spaceof the bowl as usual. The disks may be rovided *witl-i prcjections. or 'lugs 4 by w ich the are slightly separated to foriri separating -forming in shape tothe-disks.

'ti' l hedis'ks at are alsopreferably provided witl rflsmallopenings, ,4} for; the passage of milkysuch openings being located at a point radially beyond and in rear. of the perforatior"1s"3' in the distributing sleeve, see Fig.

with the bowl means of a pin or lug-1" engaging the notQhB in the'flange 3" of' 't'he" distributingslee've as shown. If it. is-*desired that the several separating disks al ways have the same circular relation when assembled *one of the. projections- 3' may be ed with a ;,vertical rib, 3?.which may" in v the plate as ine' engaged by notches 4 'ttcil in Figs. 2 and. 4. ,1

above e of separating disks 4, uitl irithe ono l part 22 of the casing; aifdiglich""d ivid tr disk is provided on its 7 w h radlally disposed ribs 5,

up ti surface terminate near to the innerwall of the cylin- 'dridportion or the casing '2, leaving a skim milk passage between the disk'edges and the- -"casing'or bowl ;v the series of disks practias that above described, but

2, with regard to" the.directionof -rotation' 'sembled, the whole milk is fed rmed thereon ,orattached wardly into the neck 2 of the casing and its exterior wall fits closely within and against said neck. The neck 5 is slightly larger in teriorly than the distributing sleeve 3 and tubular standard 1 so as to allow the cream to asdendtherethrough. The neck 5 is provlded with an inwardly projecting lug 59 adapt'ed'to engage a notch 3 in the upper end of the distributing sleeve 3, soas to locate the-distributing disk properly relatively to the separating disks and to cause it to rotate with the bowl. The neck'2 of the casing is provided-with an interior annular channel 2" into which: the skimmed milk is admittedfrom above the divider '5 5", the depth ofwh-ich may be regulated by an adjustable screw 6 in the usual manner. In the neck'il above the channel 2" is a second annular channel 2 with, which the interior of thetubular neck 5 of the dividing of the bowl; and to also which projects up-- through an annular passage 5 as usual having at one side a vertical slot disk communicates and through which the.

cream passes into the. channel 2. channel 2 openings 2 into a. suitable not 'shown, such being well understood.

The distributing sleeve shown in Figs. 9 and 10 is the same in general construction of the distributing sleeve are approximately semi-cylindric in cross section instead of rectangular. The projections 3 forming the milk distributing channels are approximately cylindric, rather than rectangular, in

From the cream escapesthrough radial} receiver, not"? shown; and from channel 2' the milk passes? through openings 2 into a separate receiver, spaces between themconthe projections cross section; and the milk distributing perforations 3" are inclined. The disks 4 shown in F ig. 10 are similar in form to'the disks in Fig. 3, but without openings it. The parts in Figs. lt'o'll corresponding with those in Figs. 1 to 8 and already described, are sixnii larlylettered, and 1t is unnecessary to dc scribe same in detail herein.

Operationz'The parts being properly -as as usual into the upper end ofthe channel 1 in any preferred or suitable manner. The milk descends in the channel 1 and passes radially outward through the slots 1"; and said slots being narrow their walls impart an initial rotary motion to the milk; the whole milk issuing from the slots enters the distributing channels 3 and assaid slots are widened outwardly. thefwhole milk hasless linear veloc-l travel along the rear ity at the outer edges of the slots 1 than at the inner edges thereof, and as the channels 3 are much wider and deeper than the slits, the milk entering such channels 3 tends to move toward and against the rear wall 3 thereof, with regard to the direction of rotation of the bowl, (see Fig. 8) and will wall 3 of the channel and be uniformly distributed over the surface of such wall and throughout the length of the channel-before it reaches the perfora tions-3.

Referring to Fig. 8 it will be seen that the channels 3 extend beyond the cream line or zone whose outer edge is coincident with the inner edge 4. of the disks 4, the line of the cream wall or zone being indicated by the dotted line a1-a2, and the whole milk is in troduced to the separating disks at a point radially beyond the cream line or zone. As stated the wholemilk will hold against and be distributedover the entire surface of the walls 3 of the channels by the centrifugal action and will eventually pass out through the perforations 3 beyond the cream zone into the thin conoidal spaces between the separating disks 4, being thus practicallyuniformly and evenly distributed through .the entire length of each channel 3 before it reaches the perforations 3", and the pres sure and supply of the milk will be practically uniform at each perforation 3, throughout the entire length of the distributing channel; which insures an equal supply of milk to the several spaces between the sepa- ."ratingdisks, and preventssome of the disks The milk passes up 'vider 5 to the outlets 2;

obtaining milk under greater lateral pressure than some of the other disks, such as would, and does, occur in ordinary centrifugal separators wherein the whole milk has direct flow from. the supply to the distributing channels, and as would occur if the milk was admitted bodily into the channels 3 instead of through restricted. slots 1 Sli'ould there be any slight over-supply of milk to any separating space, or a difference in the rate of Fvelocity of ,the currents be-- tween the disks at any point, such differences will be equalized by the presence of the passages 4* through which milk can pass from one space to another until the supply and rate of movement is equalized, the passages 4 in the whole series of disks preferably being in vertical alinement.

As the bowl rotates the milk is separated, the cream passing toward the centerand the skim milk'towardthe periphery of the disks.

and above the diwhile the cream passes up along the outer wall of the distributing sleeve and between the projections of the separating into chanso spacedapart that each one will deliver a jet of milk into the space between two-ad; jacent separating disks.

The degree of separation, and proportion of skim milk and cream obtained, is regulated by adjusting the screw 6 to increase or diminish the extent of the outlet for the milk.

What I claim is:

1. The combination, in a cream separator, of a bowl provided with a centrally disposed feed-tube having discharge openings therein, a distributing sleeve surrounding said tube having radially extending hollow projections forming vertically disposed channels; said projections having perforations in their outer walls and discharge openings and said sleeve fitting closely against said tube between said projections, together with separating. devices surrounding said sleeve between which the milk is discharged through said perforations.

2. In combination, a bowl provided with a centrally disposed feed-tube having vertically disposed slotstherein, a distributing sleeve surrounding said tubehaving spaced integral radially extending hollow projecopen sides facing said tions forming vertically disposed channels ections with open sides facing said dis-- charge openings and perforations in their outer walls; said outer walls being located beyond the cream zone, and a series Yof slightly separated conical plates surrounding said sleeve between which the whole milkis discharged through the perforations in said projections.

4. In a cream separator, the combination with a casing having a centrally disposed feed-tube with discharge openingstherein, a distributing sleeve surrounding said tube having radially extending hollow projections with open sides facing said discharge openings and perforations in their outermost walls; said walls being located beyond the cream Zone, conical separating disks surrounding said sleeve having notches therein to receive said projections, and-,a Qconical divider-plate arranged between the outermost disk and the casing and havinga tubular neck surrounding but slightly separated from the feed-tube and fitting closely within the neck of he casing; the latter having an issuing 'open sides facing said slots; the parts of the interior annular channel with a milk exit in communication with the space between the casing and the divider-plate, and the neck of thedivider-plate being open at itsupper end and in communication with a cream exit in the neck of the bowl.

5. The combination, in a cream separator, I' of a casing having-a tubular neck, a feed tube within said casing, a distributing de-' vice around said tube havingvertically disposed channels into which the feed tube discharges "said channels having discharge apertures therein, a series of conical separating disks arranged to receive therebetween'the milk iss g from the apertures in said distributing dgvice, and a conical d1- vider-plate arranged between the uppermost disk and the casing and having radially disy 6. In a cream separator, a casing having posed ribs on its upper. surface converging toward its neck, said neck of" the divider- -plate surrounding but slightly separated from the feed-tube and fitting closely within and against the tubular neck of the casing, together with means for causing said parts to rotate with the feed-tube.

a centrally disposed feed-tube,-in combination with: a distributing device surrounding said tube and having radially extending hollow projections with outer perforated I :walls, and a seriesof separating disks sup- ,7 ported upon and revoluble with said distributing device; said disks having milk passages-therethrough located at a point radially beyond'and in rear ofthe perforations in the distributing device with respect to the direction of rotation of the disks.

7. In a cream separator, a bowl or casing I having. a tubular neck withcan interior anwithin the "neck of the bowl, to provide a cream passage leading to the uppermost annular channel; said diskneck fitting closely againstthe interior of the IitBC-lQOf the bowl 'and said;uppermost zchannel being-in communication with said cream'passage and having a cream exit, mid-said lower channel being in communication with he spacebetween said d-i'sk and casing and having a skimmed milk exit, and means for holding said parts together. 8. The combination with a feed-tube having spaced lateral,discharge openings, a dis 'ti'iliiitingi.sleo\,'c-surrounding and fitting closely againsts'aidtube between said openings and having coincident therewithspaced radially extending hollow projections form in vertically disposed channels with open si es facing said openings and also having outer perforated walls; the channels being a closed at bothends.

. 9. In combinat on with a feed-tube having a series of discharge openings therein spaced apart around the tube between said openings, a distributing sleeve fitting closely 7 against said tube and having a corresponding series of radially projecting'portions with'perforated outer walls-forming vertically disposed trough-like channels into which the whole milk is discharged intermediate their ends; said ends' being closed and said channelshaving open sides facing said openings; said sleeve having a tubular neck closely. fitting. saidvtube above said channels. f

10, Incombination with a feed-tube having a series of discharge openings thereinspaced apart around the tube, a distributing sleeve embracing said tube and having a corresponding series of radially projecting portions with perforated outer wallsforining vertically disposed trough-like-ehannels with closed ends and open sides facing said open ings; said sleeve having a-tubular neck 'fitting closely around the tube above said channels and the portions thereof between said channels fitting closely against the tube.

11. In combinatioma feed-tube having a" I series of vertically disposed slots therein spaced apart around the-tube, 'a series"of slightly separated disks surrounding the' tube, and a distributing sleeve claspi-ng said tube and having spaced radially projecting portions forniing vertically disposed distributing channels with open sides facing said slots and having outer perforated walls adapted to direct the milk through the perforations therein into the spaces between said disks; said channels extending above and below the slots and having their ends closed.

12. A cream separator comprising a feedtube having discharge openings therein and a conical portion flaring o 'wardly at its lower end.- a cylindro-coni l. casing sup-- ported on saidfiai'ing porti oii and having a tubular neck surrounding but slightly separated from the upper end. of the tube, separating disks supported on said tube. and means for distributing the milk exuding through the openings in said .tube into the spaces between S&1i(l dlSl S, together with a divider-plate between the uppermost disk and the casing having a tubular neck fitted around but slightly separatedd roni said feed-tube to provide a cream pa'ssage-and closely fitting within the neck of the casing with ;its upper end open and radially disposed ribs thereon converging towaiafwits neckg" there being a space between the neck of the divider-plate and the neck of the casing leading to a. skimmed milk outlet in the casing neck, and an annular space between the tube and the neck of the divider-plate communicating with a cream outlet in the neck of the casing:

13. The combination in a cream separator with a feed-tube having spaced lateral discharge openings, of a distributing sleeve surrounding and fitting closely against said tube between said openings and havingcoincident therewith spaced radially extending hollow projections forming vertically disposed channels with closed ends and open" I sides facing said openings and also having outer perforated walls,

said sleeve between which the milk is dis-' charged through said perforations beyond the cream wall In testimony that I claim the foregoing 20 as my own, I affix my signature in presence of two witnesses.

CARL OSCAR ANDERSON. \Vitnesses H. C. BoNnAM,

ARTHUR M. SMITH.

and superposed 15 slightly separated conical disks surrounding

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