US 718319 A
Description (OCR text may contain errors)
PATENTED JAN. 13, 1903.
APPLIUATION FILED APR. 14 1902.
2 SHEETS-SHEET 1.
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J." G.- CUNNINGHAM, CREAM AND BUTTER SEPARATOR.
APPLICATION FILED APR. 14, 1902.
.2 SHBIETSSHEET 2.-
U ITED STATES PATENT Fries.
JOHN G. CUNNINGHAM, OF BELLAVISTA, CALIFORNIA.
CREAM AND BUTTER SEPARATOR.
SPECIFICATION forming part of Letters Patent No. 718,319, dated January 13 1903.
Application filed April 14, 1902. $erial No. 102,815. No model.) I
0 at whom it may concern..-
Be it known that L'JOHN G. CUNNINGHAM, a citizen of the United States, residing at Bellavista, county of Shasta, State of .Cali fornia, have invented an Improvement in Cream and Butter Separators; and I hereby declare the following to be a full, clear, and exact description of the same.
My invention relates to improvements in devices for separating cream from milk and for separating butter from cream of the type employing a rotary dash and in which air is injected into the liquid during the process of agitation.
It consists of the parts and the constructions and combinations of parts hereinafter described and claimed.
Figure 1 is a vertical central section of my device. Fig. 2 is a horizontal section on lines to at, Fig. 1. Fig. 3 is an enlarged sectional View of the shaft-head and means of fitting it to the dasher.
A represents a suitable base mounted upon the legs or standards 2, fitting in sockets 3 on the base. The receptacle 4, in which the liquid to be treated is contained, rests on a resilient packing 5, as rubber, upon the base. The bottom of the receptacle is centrally perforated,and an annular flange orsleeve 6, integral with the receptacle, surrounds the perforation and extends downwardly through and beneath the base or support. A bracket 7 is secured to the under side of the support, and in this bracket is journaled a vertical shaft 8, which extends up through the sleeve into the receptacle, and its upper end is provided with an enlarged head 9. The bracket has a portion 10 fitting snug up into the sleeve. An annular flange 11 on the upper side of the bottom of the receptacle surrounds the shaft. The top of the portion 10 extends nearly flush with the flange 11, and it is bored out to form a stuffing-box in which a suitable packing12 is placed. A bushing 12 screws into the stuffing-box and compresses the packing to form a tight joint, being adj ustable as the packing wears. The head 9 of the shaft bears upon the end of the bracketpiece 10. This offers the sole support for the shaft, which is held tightly to its seat by means of the horizontal fly or balance wheel 13, secured to the-lower end of the shaft below the bracket. The portion 10 has a ledge against which the shoulder 14 of the flange 11 is adapted to bear. The lower end of the sleeve G is threaded, as is likewise the corresponding portion of the bracket, and the parts are drawn together by means of a union 15. This effects a tight joint and causes the receptacle to be secured firmly on the base, making it perfectly rigid and free from vibration.
Power to rotate the shaft 8 is transmitted through the horizontal shaft 16 and bevelgearing 17. Upon the upper end of the shaft 8 is mounted a rotary dasher, which consists of a hollow stem 18,havingflanges 19 near its lower end, in which the radial blades or paddles 20 are secured. The lower end of the stem has a socket 21, in which are the keys 22, fitting vertical slots in the head 9 of the shaft, whereby the parts are locked together and made to revolve in unison.
The receptacle is provided with a cover 23 and opening 24:, through which airis admitted to the open-ended stem and thence passes downwardly into the body of liquid through the perforations 25 between the arms. The flange 11 on the bottom of the receptacle has one or more projections or keys 26, adapted to fitcorresponding keyways in a ring 27,
which slips over the flange and rests on the bottom of the receptacle. Extending radially from this ring are arms 28, on the outer ends of which are supported the vertical perforated brake bars or arresters 29. The object of these bars or baffles is to increase the agitation of the liquid set in motion by means of the rotary dasher. The latter, in addition to the arms 20, has two lateral perforated flanges 30, extending to near the upper end for the purpose of further increasing the agitation, and thereby expediting the separation of the particles.
In order to maintain the liquid in the separator at an equable temperature, I surround it with a water-jacket 31, leaving a space 32 unjacketed 011 one side for a draw-0d cook 33 and gage-glass 34. The jacket may be filled through a funnel portion 35. While I could be made detachable, so that the separator could be used alone, if desired.
The shaft-head 9 is practically of the same diameter as the interior diameter of the sleeve 6, so that the parts can readily be removed at any time for cleansing or for other purposes.
Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-- 1. The combination in a separator, of a containing-receptacle, having a central perforation and an annular flange or sleeve surrounding the same; a stem supported centrally in the receptacle said stem made hollow throughout its length and open at both ends, and provided with perforations near the lower end; a shaft extending in line with the stem and having, at its upper end, an enlarged head said head adapted to fit a corresponding socket in the under side of the stem; a supportingbracket having a tubular portion surrounding the shaft and provided with a stufliug-box, said enlarged head bearing upon the end of the tubular portion of the bracket; means for rotating the shaft; radial arms carried by the stem; a ring fitted to the central sleeve orannular flange on the bottom of the receptacle, and having radial horizontal arms the outer ends of which stand vertically and are provided with perforations.
2. An improved cream and butter separator consisting of. a support or base including a bracket having a tubular portion 10 provided atits upper end with a stuffing-box, and having a shoulder 14:; a receptacle having a central opening in its bottom and having a sleeve 6 and an annular flange adapted to rest upon said shoulder; means detachahly coupling the said sleeve to the bracket; a vertical shaft extending through the tubular portion of the bracket and having, at its upper end, an enlarged head adapted to rest upon the top of the said tubular portion; a vertical hollow stem open at both ends; flanges on the lower part of the stem and radial blades fixed between said flanges, said stem having perforations between said blades; means for rotating the shaft, and vertically-disposed, perforated baffles on the stem and also fixed to the receptacle.
In Witness whereof I have hereunto set my hand.
JOHN G. CUNNINGHAM. Witnesses:
E. M. WATSON, L. W. SAVAGE.