US555893A

US555893A - andersson

Info

Publication number: US555893A
Authority: US
Publication date: 1896-03-03
Anticipated expiration: 1913-03-03

Description

3 Sheet-Slieet 1.

(No Model.)

G M. ANDERSSON GBNTRIPUG-AL APPARATUS.

No. 555,893. Patented Mar. 3,1896.

[1V V 'EN T OR.

r A TTORNE PS- '1 (No Model.) 3 Sheets-Sheet 2.

G. M. ANDER8SON. GENTRIFUGAL APPARATUS.

No. 555,893. Patented Mar. 3, 1896.

' A TTORNEYZ? (No Model.) 3 Sheets-Sheet a.

G. M; ANDBRSSON. GENTRIFUGAL APPARATUS.

No. 555,893. Patented Mar. 3,1896.

WITNESSES IN VENT 0R lhviTEn STATES PATENT OFFICE.

GUSTAF M. ANDERSSON, OF NEWARK, NEW JERSEY, ASSIGNOR TO HENNING G. TAUB 1, OF SAME PLACE.

APPARATUS.

SPECIFICATION forming part of Letters Patent No. 555,893, dated March 3, 1896.

Application filed September 19, 1892.

To all whom it may concern:

Be it known that I, GUSTAF M. ANDERssoN, a subject of the King of Sweden and Norway, and a resident of Newark, in the county of Essex, State of New Jersey, have invented certain new and useful Improvements in Centrifugal Separating Apparatus, of which the following is a specification, reference being had to the accompanying drawings, forming part hereof. 1

This invention relates generally to centrifugal apparatus for separating substances of different specific gravities, but it is more especially designed for centrifugal cream-sepa rators and centrifugal butter-extractors.

It has for its object to secure a delicate adjustment of a fluid-outlet from the drum or from a chamber of the separatingdrum.

In the accompanying drawings, Figure 1 is a plan view of a centrifugal butter-extractor. Fig. 2 is a vertical section of the same on the line 2 2, Fig. 1. Fig. 3 isa vertical section on the same line, but looking in opposite di rection. Fig. 4 is a horizontal section on the line 4 4, Figs. 2 and 3. Fig. 5 is adetail perspective of the adjustable outlet. Fig. 6 is a detached perspective of the cream-disturber. Fig. 7 is a vertical central section of a centrifugal separator, showing my improvements applied thereto.

The apparatus shown in the drawings is especially adapted for hand-operated buttercxtractors and cream-separators, and to that end the various parts are of simple compact construction and are especially light running, so that there is but slight friction and therefore little waste of power in the operation of the machine.

The drawings do not show the lower parts of the apparatus nor the bearings for the centrifugal drum, as these parts are of ordinary construction and well understood in the art.

The centrifugal drum or bowl is incased byaflxed casingb, provided with a removable cover I). The operating-shaft c is arranged vertically and rotatively mounted in bearings of usual construction, and the separating drum or bowl a is mounted upon the upper end of this operatingshaft o. In the operation of the machine this drum is revolved at Serial No. 446,248. (No model.)

the rate of from six thousand to eight thousand revolutions per minute.

The mixed substances to be separated must be fed into the machine in a substantially fluid condition, and are preferably supplied in a continuous but regulated stream from the vessel e, mounted upon the cover I) and provided with a downwardly-projecting pipe or feed-tube f. This feed-tube extends down into the receiving-chamber or spread-cup g of the separating-drum, provided with radial outlets or tubes g, which extend into the main separating-chamber of the drum.

fis the feed-tube through which milk is supplied to the bowl to from the reservoir 6. 6 5

h is the color-cup for supplying coloring matter for the butter and is adjustably mounted in a screw-threaded bearing in the vessel 6 and has a downwardly-extending tube 7'1. entering the feed-tube f. The lower end of the tube It is conical, as preferably is also the lower end of the feed-tube f, and the tube h is therefore adapted to act as a stopper for the feed-tube f, and by its position in the feed-tube regulates the amount of opening or the size of the passage for the fluid supplied to the separating-drum.

The adjustment of the adjustable sliding plug 7L2 determines the amount of coloring material fed into the extractor, and the adj ustment of the color-cup as a whole determines the amount of milk fed into the extractor.

WVithin the main chamber of the drum radial blades 't' i of ordinary construction are 8 5 provided to compel the fluid to partake of the rotation of the drum. The outlets from the main separating-chamber for the heavier material are tubes j, extending from the outer periphery of the separating-drum to a point go quite near the axis of the separating-drum, and there connected withthe inclined cylindrical openings The outlet for the lighter fluid is an adjustable plug a, rotatively mounted in an opening in the upper Wall of 5 the main separating-chamber of the drum and preferably screw-threaded exteriorly. This outlet-plug is pierced eccentrically, so that when this outlet-plug is turned the ori fice will be moved toward or from the axis of the separating-drum. The orifice is preferably rectangular in cross-section, so that the plug may be turned by inserting a suitable key or wrench in said orifice a.

The outlet-plug a is located at a distance from the axis of the drum corresponding very nearly with the radius of the inner wall of the fluid within the drum during the operation of the drum. The intense centrifugal force resulting from the rapid revolution of the drum causes the separation of the particles of the fluid and a rearrangement of the particles according to their specific gravity, the heavier particles arranging themselves near the periphery of the drum and the lighter particles arranging themselves nearest the axis of the drum. Now the position of the outlet at for the lighter particles determines the density of the lighter fluid that passes out through such outlet a, for the reason that the outlet for the heavier fluids is fixed, and the relative positions of these two outlets determine through the equilibrium of the fluids the density of the fluid which will flow out through the outlet a. As the fluid supplied to the separating-drum is not always of the same consistency, it becomes necessary at vario us times to slightly adjust the outlet a, even when the device is always used upon the same character of material, as well as to initially delicately adjust the outlet. This is well illustrated in cream-separating and butter extraction, Where the milk supplied to the machine is of varying densities and is especially changed by the change of locality, so that each machine has to be adjusted to the character of cream supplied at the locality in which it is used. It is therefore quite desirable to have a fine adjustment, such as is provided by my eccentrically-pierced plug a, in order to adapt the machine to the production of a uniform quality of butter or cream.

In the construction shown in Fig. 7, where my invention is applied to a centrifugal cream-separating device, the drum has but one separating-chamber, and the cream-outlet plug a is arranged at the upper part of the drum, and the cream escapes from this outlet and is thrown outward into a receiving-pan 70. This construction is also adapted for the separation of other substances than cream and milk, and is in fact a centrifugal separating apparatus of general utility. hen, however, my invention is to be applied to butter extraction, additional devices are necessary to separate out the last particles of blue milk, and thus eitectually separate the butter-fat from the blue milk, and one or more additional chambers are provided in which this operation is effected. This construction is shown in Figs. 1 to 6, inclusive. These devices for extractin g butter form no part of my present invention. Any suitable apparatus for extracting butter may be used in their place. They are, however, shown in the drawings, and will be now described so as to clearly show one manner of using my improved eccentricallypierced screw-plug with butter-extracting devices. Two chambers are provided in the upper part of the separating-drum. The lower chamber, Z, receives the cream from the creamoutlet a. Vithin this chamber is arranged the cream-disturber, consisting of the stationary comb or pins m, mounted upon the stud m and arranged to extend within the cham ber so that their ends will enter the inner layer or wall of lighter material within the chamber Z. The stud m is rotatively adjustable and is mounted in the top or cover I) of the casing, and is adjusted by means of the handle an adapted to be clamped in desired position, and is partly hollow, and has a tube or spout m projecting into the upper chamberm, of the separating-drum. This upper chamber, 11, is placed just above the chamber Z and receives the butter from such chamber Z. By means of the tube or spout m water or other lubricating fluid is supplied to this upper chamber, at, and floats the butter particles i11- Ward in position to be removed from the machine by the butter-knife. This butter-knife 0 is adj ustably mounted in the top or cover Z) of the casin g and projects downward into the upper chamber, at, of the drum. The operation of this butter-knife is to cut out or scoop out the butter from the inner layer within the chamber a.

A drip-pan p is mounted in the upper part of the casing to receive any fluid which may perchance flow over the top of the drum. A suitable vessel would also be, provided or formed by the casing for receiving the blue milk from the outlet-orifices j, but such device is not shown, as it is of usual and wellknown construction.

The apparatus shown in the drawings is convertible-that is to say, the same frame and separating-drum is adapted, with a slight change of other parts, to operate both as a butterextractor and as a separator. The change from one form of machine to the other is readily and easily effected.

Figs. 1 to 6 show the apparatus arranged for butter extraction, and Fig. 7 shows the apparatus arranged for simple separation. The removal of the cover I) and attached parts, including the drip-pan p, the vessel (2, tube f, and the separating-combs m and stud, and of the upper revolving piece containing the chambers n and l, and spread-cup g and the outlet-orifice a, removes all the parts of the machine that are peculiar to the butterextracting operation. The removal of these parts having been effected,the cap q is screwed upon the separating-drum and the coverr is placed over the top of the frame I), and thereby the machine is prepared for the operation of separating cream from milk or of separating other mixed substances. A suitable reservoir or vessel 6 forms part of the cover 0', and a suitable receiving-vessel 70 also forms part thereof A feed-tube f extends downward from the bottom of the vessel 6 into a receiving-chamber or spread-cup formed in the cap g. This spread-cup is similar in construction to the spread-cup g of the butterextracting cap, but somewhat modified by reason of the difierent shape of cap. 9 are the tubes extending from such cup into the main chamber of the drum.

An adjustable plug a, provided with an outlet-orifice a, is exactly of the same construction as that heretofore described and mounted Within the top of the cap.

The i'eed-tube, color-cup, and its downwardly-extending tube,tl1e adjustable sliding plug, and the butter-extracting devices shown and described form no part of my presentinvention, but are to be claimed in another application about to be filed by me.

What I claim, and desire to secure by Let ters Patent, is-- 1. In a centrifugal separator, the combination with the separator-drum of an eccentrically pierced rotatable plug fitted in the Walls of a separating-chamber of said drum and so arranged that the rotation of said plug adjusts the distance from the axis of the drum to said eccentric opening, substantially as set forth.

2. In a centrifugal separator, the combination with the separator-drum of the rotatable screw-plug a, having the eccentric orifice a formed therein and fitted in the Walls of a separatingchamber of said drum, substantially as set forth.

GUSTAF M. ANDERSSON.

\Vitnesses:

HENNING G. TAUBE, GrrAs. W. MARSHALL.