US1145600A - Emulsifier. - Google Patents

Description

M. LEITCH &"B. R. WRIGHT.

EMULSIFIER.

APPLICATION FILED mu I9. 1914.

Uatented July 6, 1915 nc m uc 3mm; lzrrs i am MM UNITED STATES PATENT OFFICE.

MEREDITH LEITOH AND BERT R. WRIGHT. 0F POUGHKEEPSIE, NEW YORK, ASSIGNORS TO THE DE LAVAL SBPARATOB COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW J EBSEY.

To all whom it may concern:

Be it known that we, Ml-znnurrn Lnrrcn and Burr R. Winona, both citizens of the United StfltflS,uD(l residing at loughkoepsie, county of Dutchess, State of New York, have invented certain new and useful lmrorements in llmulsifiers; and we do herey declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to improvements in the formation of a more or less permanent mixture, commonly called an emulsion, of two materials, one of which is of a fatty nature and the other of a watery nature.

Moreparticularly, it relates to the formation of such an emulsion by discharging a rough mixture of the two materials, by centrifugal force, between revolving plates ar ranged in close proximity to each other and of relatively small diameter, thereby requiring a minimum amount of driving power to operate them eflrotivcly, although of large capacity appropriate to a wide variety of commercial uses.

In the accompan ing drawiugs,---Figure 1 represents, part1; in elevation and part y in section an emulsifier constructed in cordance with our invention, the portion shown in section being taken upon a plane indicated by the line l--1 of Fig. 3; big. 2 is a similar view, the part shown in section being along a plane indicated by the line 22 of Fig. 3; Fig. 3 represents a section,

- viewed from below, taken on a ll llllu ndicated by the line 33 of Fig. 1. and, consequentlv, shows the underside of one of the elements making up the emulsifier Similar letters of reference indicate simi lar parts throughout the several views.

Referring to the drawing, A indicates a shaft which may be supported and revolved in any approved'manner. This shaft carries a bottom plate I) having an annular de pression or distributing chamber r. The upper portion of the shaft is borrd out to form a central receiving chamber (1 for the materials to be emulsified; and, leading Specification of Letters Patent.

EM ULSIFIER.

Paton ted July 6, 1915.

Applicatlon filed larch 18, IBIL Serial Ho. 825,778.

ing rlnunbrr (5 are a plurality of plates f,

each having upon its upper face an annular groove 0 corresponding to the annular groove r: of the bottom plate I), and having in its lower side a, number of slots or grooves r; which to: m eontirmations of the tangential passages win the wall of the central chamber.

The slots or grooves g, in the lower face of curb of the plates f serve as feeding passages res wetively tn the annular depressinns: or istributing chambers r: in the upper hlCr of the several proximate elements. A lrrv engag ng in corrcspomhng key- \vr v-. Hi the shaft and in the several eleirents lo be assembled causes the slots 9 to regal-tor accurately with the tangential passages in the wall of the central chamher.

The up plate 2' rests upon the uppermost phi r fol the srrlrs of emulsifying elements and has in its under-face slots correspomlin v to those in the under-faces of the Severn plates f. A nut j engaging a thread on the wiper end of the shaft, when screwed down against the plate i, holds the assembled cleriients together. I

In each of the plates f. and in the top plate i are a number of vertical grooves la, snared at suitable distances apart about the outer periphery of the wall of the central hznnher. 'lheso vertical grooves la communicate with an annular grrove around the shaft at l. and serve as air vents from the several srrllons to the said annular groove and them-n from the annular groove 1 through corresponding \"crtical grooves m in the nut ln cross section, the slots or grooves 1 preferably deepen from without inwardly; and the annular depressions or distributing rlunuhers w lh-nprn from within outwardly. This arrangement is found to facilitate rogularitv and uniformity of feed and dis charge of the. materials to be emulsified.

The operation of the device is as follows: The material to be emulsified, which is preferahly first roughly mixed, is fed into the central chamber (1 in any approved manner. It is immediately thrown out against the wall of the chamber and discharged through the passages e. The tangential arrangement of these passages facilitates the entrance of the liquid and its feed into the slots or grooves {1. These slots or grooves y feed the material into the. annular surface depressions or distributing chambers c, where. because of the high speed of rotation of the device a centrifugal force is set up. The outer wall 11 of the annular surface groove (1 in each element is slightly lower than the central portion of the element, thereby leaving a very narrow orifice between the top of the wall a and the bottom of the element above.this intervening space. in many instances, heing as small as one-thousamlth of an inch in hei ht. The pressure caused by the centrifugal force, acting upon the material in the depressions or distributing chambers c, forces the material through the very narrow discharge oriiiecs. and mixes the particles so thoroughly as to Form the desired emulsion. During the operation. any air that is entrained with the material and which wouhl otherwise tend to interfere with the proper feed thereof is carried otl b" the venting grooves.

The large capacity of the emulsilier is due in part to the presence of the air vents referred to, the tangential feed of the material from the central receiving ClllllhllN, the con formation of the slots or grooves forming a continuation of the tangential slots c, the out 'ard slope of the annular surface deprcssions or distril uting chamhcrs c. and the employment of a series or plurality of the emulsifier elements superposed one upon the other; and, at the same time. while having the desired high capacity for elllcient commercial uses. the emulsifier operates, with safety. at high speeds. and with a minimum expenditure of power, lit-cause ot its relatively small diameter.

\Vhat we claim is:

l. .\n cnmlsitier, provided with a central receiving chamher and ha ring discharge passages leading: from said chainhcr and tangent to the inner wall thereof. and one or more outlying emulsifying elements supplied from said tangential passages.

"2. .\n emulsifier. provided with a. central receiving,chamber and having discharge passages leading: from said chamher and tangent to the inner wall thereof, and one or more outl \in; emulsifying elements supplied from said tangential passages through the intcrnualiacy of grooves forming con tinuations of said pas ages.

Cl. An emulsifier. provided with a central receiving chamber and having discharge passages leading from said chamber and tangent to the inner wall thereof, and one or more outlying emulsifying elements supplied from said tangential passages through the intermediaey of grooves forming contiuuat-ions of said passages, said grooves de creasing in height from within out ardly.

4. An emulsifier provided with a central receiving chamber and having discharge passages leading from said chamhcr and communicating with outlying emulsifying elements made up of superposed plates the lower plate havin an annular face groove. increasing in dcpti from within outwardly, and iamnnunirating with the dis-churn pas sages of the central (lltllllltfll hy g- .ioves in the upper plate decreasing in height from within outwardly.

."i. .\n cluulsilicr. provided with a central receiving chamber and having discharge passagcs lending therefrom, one or more, outlying emulsifying eleuu-nts supplied from said passages. and a rent from said passages for the escape of air entrained with the material fed.

n. .\u emulsifier, provided with a rotatory central receiving chamhcr. and a plurality of emulsifying elements muunuuicating with said cllamhe and superposed one upon the other.

T. in emulsifier. pro. dcd with a ccntral receiving 'hauiheix nul a plurality of emulsifying elements rounuuuicating with said chamber liy tangential passages and superposed one upon the other. and air vents leading upwardly from the exterior of the central rhanihcr.

H. .\u cmulsilirr. provided with a central receiving chamhcr having passages leading tlnu'cli'olil. and a plur: lity ol' cuudsilh'ing t'lltllllt. couuuuuicutiig hy said passages with said chuluhcr and superposed our upon th othcl'. one mem er of each of said elcnu'nls living provided with an annular surtacc depressi n and an outlying discharg lip and the other uu-iuher of each of said rlcuu'nts lining provided with iced fll'nuvcs forming contiuuatious of the passages from the central chanihcr.

i .\u clulllsilicr with a rotatory central receiving chainher. having pas ages leading therefrom, and an outlying series ol cuullsilying clcun-nts filllltl'llllhtll one upon the other. means for loruliug the elements in iii-determined arrangement. and a securing not for locking them rcmovidlly in place.

it). .\u cunllsiiicr. provided with a central receivingrhauilu'r ha vin; tangent discharge passages and u duralitv ol' ruiulsil'ying clc uicnis communicating with said rhamlvcr and superposed one upon the otln-r, one iucmhcr of each of said clemcuts hciir; pIo vidcd with an annular surface depression and an uullyin; dischargc lip. and tho other incmhcr of each of said elements ln-ing pro llC vided with ferd grooves forming continuations of the tangent discharge passages from the central chamber.

11. An emulsifier, provided with a central receiving chamber having tangent discharge passages and a plurality of emulsifying elements communicating with said chamber and superposed one upon the other, one

member of each of said elements being provided with an annular surface depression and an outlying discharge lip, the other member of each of said elements being pro vided with feed grooves forming continuations of the tangent discharge passages from the central chamber and air vents leading u wardly from the exterior of the central member.

12. An emulsifier, provided with a central receiving chamber and a plurality of emulsifying elements communicating with said chamber and super osed one upon the other, and air vents lea in upwardly from the exterior of the centre chamber.

13. An emulsifier, provided with a rotatory central receiving chamber and a plurality of emulsifying elements, each of said elements having a distributing chamber and constitutin continuations of discharge pas- 1 sages whic lead from the receiving cham- 15. An emulsifier, having a. rotatory central receiving c'hambeiyand' a plurality of emulsifying elements each having an annular discharge orifice and a distributing chamber, an feed passages leading from the receiving chamber to the distributing chamber, sair feed passages being provided with air vents.

In testimony whereof we aflix our signatures, in presence of two witnesses.

MEREDITH LEITCH. BERT R. WRIGHT. Witnesses:

SELDEN H. HALL, CHARLES L. POWELL.

It is hereby certified that in Letters Patent No. 1,145,600, granted July 6, 1915,

upon the application of Meredith Leiteh and Bert R. Wright, of Poughkeepsio, New York, for an improvement in Emulsifiers, an error appears in the printed specification requiring correction as follows: Page 1, lines 60 end'fil, strike out the word groove and insert the Words deprus'ions or distributing chambers; and that the said Letters Patent-should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 31st day of August, A. D., 1915.

J. T. NEWTON,

Acting Commissioner of Patents.

[SEAL]

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