US1256577A - Cream-separator. - Google Patents

Description

O. A. KRENKE.-

CREAM SEPARATOR.

APPLICATION FILED JUNE 15. 1916.

Patented Feb. 19, 1918.

OTTO A; KRENKE, 0]? PORT HURON,

MICHIGAN, ASSIGNOR TO ANKER-HOLTH MANUFAC TUBING 00., OF PORT HURON, MICHIGAN, A CORPORATION MICHIGAN.

. CREAM-SEPARATOB.

Application filed June 15, 1916.

To all whom it may concern:

Be it known that I, OTTO A. KRENKE, a citizen of the United States, residing at Port Huron, county of St. Clair, State of Michigan, have invented a certain new and useful Improvement in Cream-Separators, and declare the followin to be a full, clear, and exact descriptiono the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying draw-,

ings, which form a part of this specification.

This invention relates to an automatically controlled feed for the milk of a cream separator. It comprises a governor arranged to allow the milk to enter the cream separator when a predetermined speed of the revoluble element of the cream separator has been reached, and also to shut off the feed of milk when the speed of the revoluble element falls below the predetermined speed or ralaterially exceeds the predetermined s ee It is necessary for the proper operation of a cream separator which works upon the centrifugal force principle that the machine be operated at the speed which it was designed for, for it will be obviousthat the increase or decrease of the speed above or below a given point changes the centrifugal force and makes the operation of the machine and its separating functions wholly unreliable. This has long been known and it has been overcome by the use of devices which indicate the speed of the revolving element and which are consulted by the operator before and whilethe milk is fed into the separator. Of course any machine depending upon human operation is subject to the frailty and the uncertainties of human vigilance. It is the object of my invention to do away entirely with the human element and to make the machine entirely automatic. To this end I have devised the'mechanism hereinafter to be described.

In the drawings,- I

Figure 1 is a side elevation of the cream separator with the control apparatus and a portion of the receptacle, some of the parts being sectioned for clearness of illustration.

Fig. 2 is a detail of the driving connections.

Fig. 3 is a detail of the connection be- I tween the cut off valve and the governor.

Specification of Letters Patent.

Patented Feb. is, rare.

Serial No. 103,709.

Fig. 4 is a detail of the pivot that I use to make the walking beam detachable.

The cream separator is designated a. Its details of construction and its mode of operation need not be detailed. Suffice it to say that it is the ordinary separator operated upon the centrifugal principle. -The large driving gear is designated 6 and to this is connected the driven pinion '0 carried upon a shaft which has on its opposite end a beveled driving pinion d which meshes with the beveled driven pinion e. This is on the lower end of a vertical shaft journaled 111a yoke. f and below the top of the yoke the shaft is provided with a sleeve 9 which is'fast thereto. Near the lower end of the yoke the shaft is provided with a slip sleeve It. To each of these sleeves is pivoted a pair of links 2' and the upper links have on their ends the weighted ballsj forming the well known centrifugal governor. The spiral spring It tends to space the two sleeves apart and resist the tendency to throw out caused by rapid rotation of the balls. The u per part of the shaft is screw-threaded an the adjusting nut and lock nut Z are located on this threaded portion so that the pressure of the spring may be adjusted to regulate the spring pressure and determine the speed of the revoluble element necessary to overcome the spring pressure and throw the balls out.

The slip sleeve h is provided with a half spherical terminal which provides an upwardly directed circular face upon which runs the end of a lever m which is held to this face by the small spiral spring at. This lever m is provided at its outward end with a vertical extension 17 which is screw-threaded at its end to receive the two nuts 0 which adjustably connect it with the walking beam 9. This walking beam 9 is pivoted on an upright 1' by the pivot s. The outer end of the walking beam is bifurcated and straddles the pivot pin 25 carried on the end of the valve stem 20. v

The milk is contained in the receptacle '2), which is provided with an outflow pipe to whose end is shaped to provide a tapered valve chamber :0 adapted to receive a turn-plug valve 3 which has a chambered center and when turned as shown in Fig. 1 communicates with the outflow passage-way w and discharges through the opening in the bottom of the valve.

It will be obvious that thisturn-plug valve may be used to entirely out the flow off by turning the-side opening around to the position of non-registry with the out-flow passage to. ,This may be done by the hand as the top of the valve is provided with a Wing z for this purpose. Be-

7 low the turn-plug valve the valve chamber :1: extends some distance to form a puppet valve chamber 1 in which the puppet valve 2 functions. When this puppet valve is raised to the limit of its upward movement it closes the opening in the bottom of the turn-plug. valve. When it is dropped it seats upon the valve seat about the final outflow opening in the valve chamber -00. It will, therefore, be understood that ordinarily the valve 2seats upon the rimof the outflow opening in the valve chamber at and consequently prevents the flow of the m1lk into the cream separator a. Now, when a predetermined speed has been reached 1n the rotation of the revoluble element in the cream separator a, the balls j of the governor overcome the pressure whlch has been given the spring 70 by ad]ustmg th e nuts l, and the balls throw out, thereby raising the slip sleeve k, the contact end of the lever m,

pulling down the opposite end of the lever,

and consequently the left hand end of the walking beam 9, thereby raising the valve stem 2? and the puppet valve 2 from its seat to such a position as is shown in Fig. 1. In

this position the milk may freely flow into- When the predeterthe cream separator. mined speed is materially exceeded, the balls continue to throw out and the puppet valve continues to rise untilit reaches the opening in the bottom of the turn-plug valve and-seats thereupon and completely closes oil the flow of the milk. In this position the valve remains until the proper spe'ed'of the revoluble element has again been i reached.

It will be noticed that the walking beam is arranged so that it may be easily removedfrom the devices attached to the milk receptacle so as to allow the milk receptacle to be removed. The walking beam is pivoted upon a handle-provided pivot s which is detailed in Fig. 4 and shown in Fig.3. The pivot is provided with two flat sides so that when the handle is'turned parallel with the walking beam, the walking beam may be slipped over the flat sides of the handle-provided pivot, the latter passing through the aperture 3 in the side of that portion of the walking beam which engages around the pivot opening. This allows the bifurcated end of the walking beam to be drawn away from the pivot If so that the milk receptacle together with the devices it carries can be removed from the cream' separator and the governor apparatus. It is also noted that the walking beam is provided with a hooked portion-4 on its lower separator has been attained and which preeludes the flow-of'the liquid when excessive speed of the liquid separator is attained.

2. In a liquid-feeding governor of the character described, the combination of a centrifugal liquid separator, a feed line leading thereto, an inlet valve for controlling the 1 feed line, and means governing said valve for allowing the flow only when a predetermined speed has been reached by the revoluble element of the centrifugal separator, and

' said means further closing off the flow when.

said predetermined speed has been materially increased or decreased.

3. In a governor-controlled valve, an outflow pipe provided on its end with a terminal open at top and bottom forming a valve chamber, a turn-plug valve having a chambered center open at its lower end and communicating with the exterior through one side, said turn-plug valve being adapted to allow the discharge of fluid therethrough when the side opening in the same registers with the passage-way in the outflow pipe, a puppet valve located in the space between the lower end of the turn-plug valve and the valve chamber andgoverning the opening at the bottom of the turn-plug valve and the opening at the bottom of the valve chamber,

anda governor for automatically operating said puppet valve when a revoluble element attains certain specified speeds.

4. In a governor-controlled valve, an outflow pipe, a valve and valve stem for controlling the flow through the outflow pipe, and apparatus for automatically operating said valve in accordance with the speed of a revoluble element, said apparatus including a walking beam supported upon an upright by a handle-provided pivot having flat sides which allows escape through the cut awayportion of that portion of the walking beam which surrounds the pivot as a wall, and the end of the walking beam being provided with a bifurcated end which allows .the' same to be withdrawnfroma pivoton the valve stem straddles.

5. In a governor-controlled valve, an outwhich the bifurcated end .flow pipe, a valve and valve stem controlling the outflow pipe, and apparatus for controlling the operation of the valve in accordance with the speed of a revoluble element and ineluding a walking beam supported upon an upright by a handle-provided pivot having flat sides which allows the escape of the walking beam through a recess in the portion of the walking beam which surrounds the pivot as a wall and the walking beam being provided with a bifurcated end which straddles a pivot pin on the end of the valve stem, and the said walking beam further being provided with a hooked portion whose opening faces the opening through which the pivot pin of the upright may escape and which allows the walking beam to be temporarily rested within the hooked portion of. the said handle-provided pivot.

6,. In a liquid-feeding governor of the character described, the combination of a centrifugal liquid separator, a feed line lea ding thereinto and provided with a pair of valve seats, a single puppet valve and governor apparatus for causing the puppet valve to seat on one of the valve seats until a predetermined speed is' reached and upon the attainment of excessive speed to seat upon the other valve seat, thereby to maintain a proper speed of the liquid separator.

In testimony whereof, I sign this specification.

OTTO A. KRENKE.

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