US1086302A - Milk-cooler. - Google Patents

Description

E. R. MGGLURE.

MILK COOLER.

APPLIGATION FILED AUG.19, 191,2.

Patented Feb. 3, 1914.

l HHIII Ilillb-IHHUHIIEI i i i l Specication of Letters Patent.

Patented Feb. 3,1914.

Application filed August 19, 1912. Serial No. 715,740.

To all whom it may concern Be it known that l, Encan R. llfcCLUaE, 'a citizen of the United States, residing at Los Angeles,` in the county of Los Angeles and State of California, have invented a new and useful Improvement in Milk Coolers, of which the following is a specification.

This invention relates particularly to devices for preparing milk for domestic use, and its principal object is to provide a cooler to combine the features of cooling and also adapted to have its function changed to a sterilizer.

It is also an o. ject to provide a cooler that may be cooled either by the use of ice or fluid cooling solutions.

It is also an object to provide the cooling tubes of such a cooler provided with spreaders which will compel the iiuid to Contact with the cooling surface in a film.

Itis a further object to provide means for readily cleansing the tubes from a point outside the cooling compartment.

In the drawings accompanying this speciiication Figure 1 is an elevation in section showing the ice chamber and the cooling chamber, a portion of the outer side walls being shown in elevation. Fig. 2 is au end view of the apparatus, a portion of the end Wall being broken away in three places to clearly show the tubes and hopper in which the tubes empty. Fig. 3 is a plan view, partly in section, to clearly Ashow the housing around thev hoppers. Fig. 4 is a detail perspective of a portion of one of the cooling tubes showing the method of securing a spreader inside the tube.

More specifically in the drawings like numerals indicate the same parts in the different views, 5 designating the side walls of the compartments, and G the end walls, preferably built of metal with a heat non-conductive lining, or of wood as shown in the drawing. The top of the casing 7 is provided with a hinged door 8 which provides an opening into the ice chamber 9, this being separated from the main cooling chamber 10 by the perforated licor 11 shown as built of heavy Wire fabric.

Chamber 10 is below chamber 9 being provided with a removable bottom 12, with the short Walls 13 provided with flanges 14C which engage with similar anges 15 on the side and. end walls above described, being securely held by the bolts 1S or other fastenings. This receptacle bottom contains within it the' agitator 17 shown as a rspiral screw mounted on the shaft 18, journaled in UMTED STATESPATENT. carica the short walls 13, thle outer end of the shaft being provided with a pulley 19 to be'driven by any suitable source of power when desired. This receptacle bottom also supports the steam pipe 20 provided with perforations which admit steam to the chamber "1() when desired, the valve 21 controllingF the source of supply from some suitable boiler. r

A drain cock 22 is also tapped into the bottoni 12 to provide means Afor withdrawing`- Huids accumulated or introduced linto the chamber 10. The overflow pipe 23 is also provided, extending from the top of the chamber and leading out through the bottom 12, the valve 24 controlling this overllow pipe, the Valve being located referably just below the bottom 12.

Auxi iary housings or closures are formed on the end walls lby a continuation of the side walls 5 and closed by the tops 25 and the bottoms 26 and the" M doors 27, one of these housings being dupliy cated on each end wall to provide inclosuresv for thefhoppers 28.

Extending into the top 25 of the housing i 1 on oneside is a pipe 29 leading from the reservoir 30 to convey iiuid to the hopper immediately under the pipe and affording communication to the lower end of the tube 31. This tube as clearly shown, is in clincd so that the fluid will entirely cover its entrance orifice before it makes its exit at its other.ed,' these ends being mounted in the end walls 6 of the main casing. From this exit orifice in the tube, the fluid drops to the first ho per thereunder communicating with the tube 32, this tube also extending across the chamber 10 and inclined in the reverse direction where it empties outside the end Wall 6 of the chamber into the next hopper 28. A series of these tubes form a circuitous passage, and a plurality of them are shown mounted in thc same relative verf I which adjoins the ammonia supply pipe 33 controlled by the valve 34. The hoppers 28 are preferably formed of sheet metal as shown, each hopper having at its most dependent portion van aperture formed therein adapted to be closed by the plugs 35, these plugs 35 being normally in position to close the orifice andwithdrawn when it is'desired td clean theA structure. lrVithin the tubes 31 arid 32 are preferably mounted the spreadl l (l ers 36 in concentric relation with the inner periphery of the tube, b the s accrs 37 these spreaders being pre erably ormed oii tubingr with the closed ends 38. The lowermost of the cooling tubes 32 is provided with an exit trough 40 leadin the milk to any suitable container outs e the casing and the housing. In the operation of this device when it is desired to cool a fluid, as milk ice may be introduced into the chamber an the supply) in reservoir 30 is allowed to How throu li y a suitable controlling means not siown until a desired temperature is reached at the exit 40. If ice is not at hand, a brine solution of common salt and water may be introduced in the chamber 10 and the brine kept in solution by means of the agitator 17. Ammonia coils 33 are also provided so that this cooling medium may be allowed to enter the coils and produce the coolinv etl'ect whenever needed. When it is desired to use the device as a sterilizer, water is introduced in the chamber 10, live steam injected therein through the pipe 20 resulting in a pasteurization of the milk, or the steam alone may be used if desired. When it is desired to clean the device, the doors 2T may be removed and the water directly in'ected into the upper ends of the cooling tu es, the plugs 35 are removed which permits the water to drop into the hopper next below and be readil carried away. The s readers 36 may be uilt removable so that tiiey can be readily withdrawn when it is desired to clean the structure. The parts supported by the bottom 12 are also easily removed by dctachiug the bolts 1G. Suitable clips 42 are provided to hold the doors 27 securely in iosition.

What Iclaim is:

1. A milk cooler, com rising a receptacle adapted to contain a coo ing medium, a plurality of inclined tubes supported therein and extending across the same and hoppcrs mounted external to the receptacle, forming communication between said tubes, the lower portions of the tubes extendino' to the lower portion of said ho pers, anV the tops of said hoppers extcndinof above the level ot' the oppositely disposed-ends of the tubes to that communicating with said lower portion of the hop Jers.

2. A mil t cooler, comprising a casing havingl an upper and a lower compartment, coin municatlng with one another, a series of incllned tubes mounted in the walls of said lower compartment and extending across the lower compartment reversely inclined to the flow of the liquid therein, hoppcrs terminaT reservoirs in connection with said inclined pi es provided with apertures, and removab e means for spreading the liquid circulating in said tube.

In witness that I claim the foregoing l have hereunto subscribed my name this 12th day of August, 1912.

EDGAR R. MCCLURE.

Witnesses:

EDMUND A. STRAUSE, M. BA'rrnY.

Uopin o! this potent may be obtlined for ve cents each, by addressing the Commissioner of Patente,

Washington, D. 0."

Images