US247804A - Centeifugal oeeamer - Google Patents

Description

G. 'DE LAVAL. -CENTRIPUGAL GREAMER.

Patented Oct. 4,1881.

vUNITED STATES PATENT FFICE.

GUSTAF DE LAVAL, -OF STOCKHOLM, SWEDEN.

CENTRIFUGAL CREAM ER.

SPECIFICATION forming part' of Letters Patent No. 247,804, dated October 4, 1S81.

Application tiled July 31, 1879. Patented in England November 4, 1878, in France March 5 and June 30, 1879, in Belgium June 27,

l 1879, and in Italy J une 30, 1879.

To all whom t may concern Be it known that I, GUs'rAF Dn LAVAL, of

`the :city of Stockholm, Kingdom of Sweden,

rlhe apparatus is especially useful in crea-mingv milk.

The invention consists, essentially, in the combination, with a hollow chamber rotating upona vertical axis, of a pipe concentric with said axis for the admission of a compound iiuid, and two or more nozzles, also concentric with said axis,for the delivery of the separated iiuids.

It also consists in various details ot' construction and combinations of parts, hereinafter described.

1n the accompanying drawings, Figure l represents a vertical section of the apparatus, and Fig. 2 a perspective view thereofl on a smaller scale.

Similar letters of reference designate correspending parts irl-both figures.

B designates a stand, preferably made of cast-iron, supporting a hollow chamber, A, preferably cast in one piece therewith.

D is a strong chamber formed of one piece of steel,iron, or othermetal, and in form nearly elliptical in vertical section. It is arranged upon the upper end of a shaft, which projects into chamber A, and which rotates rapidly. This rotating chamber D has two tubular projections or nozzles, l and u, from its center upward, one within the other, which respectively serve as passages for the separated uids, and both concentric with the axis of the chamber D. These tubular projections have suitable flan ges to allow them to be bolted firmly upon the upper end of the chamber D, as

' shown.

the nozzle Z and the vessel H that flowing from the nozzle n. The two vessels G and H are concentric with the nozzles Zv and fn, and are open at the center to permit said nozzles to project through them.

3/ y are two spouts arranged to convey from the vessels G and H the separated fluids to convenient receptacles. g

q is a small tube leading downward through tube n into the radial channels s s 'at the bottom of the chamber D, and through which the tluid to be separated is tlrst poured.

c' is the shaft, through which motion is given to chamber D. It is provided with a flexible bearing, r, kept in position by means of the elastic ring o, made of lrubber or other suitable material, and glandp, which allows a slight vibratory action of the upper end of said shaft.

c representsa short vertical shaft, mounted in the base of frame A, upon which the shaft t' rests, and which is connected thereto by means of a friction-plate, z, 'of cork, wood, or other suitable material. This vertical shaft c is provided with a suitable driving-pulley, a, whereby power may be communicated to the apparatus by means of a belt, d.

E is a cover, which incloses tightly the chamber A.

X is a bent tube leading from the inner periphery of the chamber D to the tubular projection or nozzle l.

s s represent two or more radial pipes, fastened iu the bottom part of chamber D, which lead the entering iluid toward the periphery of the chamber D to a point at which the separation begins, the fluids of greater specific gravitycontinuin g toward the periphery, while the lighter fluid portions ow toward the center under the influence of centrfu gal action,to be described farther on.

Theoperation of this apparatus is as follows: Rapid rotary motion being given to the chamber D, unskimmed milk or other compound fluid passes from a pipe, f, through pipe q, into the chamberD in a slow but continuous stream, the ow being regulated bya cock or valve in the supply-pipe f. By means of the rapid rotary motion, the compound iiuid, continually flowing :into the chamber D through the pipe q, is caused to separate into its constituents by the centrifugal action imparted to the iluids ot' ditlerentgravities, thereby causing the heavier to tend toward the ou ter circumference of ch amber D, while the lighter is forced to remain nearer the center. As the chamber becomes lled with the separated fluids the heavier fluid portions commence to overflow through the curved pipe X and nozzle l into vessel G, while the cream from the milk, or the lighter portion of other compound duid, willoverilow from the inner nozzle, n, into vessel H. At the end ot' the operation, when all ofthe mill; or other compound fluid to be separated at one time has been poured into the apparatus, in order to complete the separation of the con' tents remainingin vessel D, the rotation of the same is stopped for a moment. The rotation is then renewed, and some ot' the heavier portion of the already-separated fluid is poured through pipe g again. This causes the remaining cream or other light fluid to rise through the inner tube, n, and to bc thrown into vessel El until the last remaining portion has become separated and the operation completed.

As the supply of milk or other compound fluid is continuons, it will be understood that incipient and progressive separations ot' the supply into accretions ot' cream and skimmed millr or any other simple uids are atall times taking place within the chamber.

Bymeans of this` apparatus I am enabled to separate any fluids ot' dill'erent specilic gravities continually. One stream ot` compound iluid enters by means of pipe q, while the separated fluids flow from the two spouts y y, respectively.

This apparatus is simple, cheap, and valuable for many operations in the arts, and is especially adapted to the separation of cream from milk, either fresh or old. It maybe operated by hand or otherwise.

Vsfhatl claim as myinvention, and desire to secure by Letters Patent, is-

1. The combination, with a hollow chamber rotating upon a vertical axis, otl a pipe concentric with said axis for the admission ot a compound fluid, and two or more nozzles, also concentric with said axis, for the delivery of the separated fluids, substantiallyT as speoied.

2. Thecombination, with a hollow chamber rotating upon its vertical axis, of a pipe concentric with said axis for the admission ot1 a compound lluid, two or more nozzles, also concentric with said axis, for the delivery of the separated fluids, and a curved pipe extending from the outermost ot' said nozzles down and outwardly within said chamber, nearly to the periphery thereof, substantially as specified.

3. A. closed centrifugal chamber provided with a double set ot' concentric and central vertical dscharge tubes or nozzles, in combina tion with a stationary receiver consisting ot' the central annular compartments, G H, through the hollow center of which the double tubes or nozzles project, substantially as specilied.

4. The combination of the rotary chamber I), inletpipe or passage q, radial passages s, extending therefrom, nozzles la, and curved pipe x, substantially as specified.

GUS'PAF DE LAVAL.

Witnesses:

Osoan LAMM, J r., GUs'rAF ULFF.

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