US1850303A - Abbiokob to the liquid cabbonic cob - Google Patents

Description

March 22, 1932. F. HUNT 1,850,303

ACCELERATOR FOR REFRIGERATION UNITS OF SODA FOUNTAINS Filed March 21, 1929' s Sheets-Sheet 1 I Jwumtoc G Frank/1h Hunt -March 22, 1932. v HUNT 1,850,303

ACCELERATOR FOR REFRIGERATION UNITS OF SODA FOUNTAINS Filed March 21, 1929 s Sheets-Sheet 2 gwucntoi mm Hm,

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March 22, 1932. F. HUNT 1,850,303

ACCELERATOR FOR REFRIGERATION UNITS OF SODA FOUNTAINS Filed March 21, 1929 s sneets sheet 3 gwvmtoz Frank/1'12 H 106,

Patented Mar. 1932 unrra'o STATES LIPATENTF OFFICE I rnAnnm nuivr', or omcAeo, rumors, Assxeuoa r rm; mourn cAaBomrc 'conronArIox, or enrcAeo, rumors, A conronA'rron or DELAWARE co'um'ron 1.0a ammeaaAsrIon Ums or so'nA rouNrAms Application ma larch arises. serial No. 34am.

In soda fountains of the mechanically refrigerated type'a' refrigerating element, commonly known as a 000 er or boiler is placed 'in a water-tight compartment together with l two coilsof pipe, one .of which isconnected to in .a compartment submerges the boiler and.

v a su ply of carbonated water and the other of w ich is connected to a supply of uncarbonated water, the arrangement being such that a liquid such as water or brine contained the twoccoils.

Thewater tight compartment is arranged within a casing which is insulated from the external air except as to its upper end, and

this end is covered by, a removable cover 'which, in some instances, is perforated at several oints for the reception of containers which orm covers for-the perforations and receptacles for material to be kept 0001', said i 29 containers projecting into the upper end of the compartment generally above the normal liqilld level therein.

11 such an, arrangement the thermic circulation of the liquid is somewhat sluggish and there is a tendency towards accumulation of ice upon the boiler, which accumulation decreases the refrigerating efi'e'ct of the boiler.

The object of my present invention is to provide sim le but eflicient means for mechan'ically stimulating the circulation of the liquid around the boiler and cooling coils in "such'manner as to decrease the tendency to ice accumulation and thereby maintain, to a greater degree, the cooling efiiciency of the b01161. relative to the coils, the construction and arrangement of the mechanical circulation stimulator being such as to prevent, as far as is conveniently"commercially racticable, the delivery to the refrigerate compartment of heat which is unavoidably dev vloped by the continuous o eration of the ing also such stimulator, the arrangement that it will not detract, from the aesthetic venient operation.

value of the fountains, or interfere with con- The accompanying drawings illustrate my invention.

Fig. 1 is a vertical section of that portion lator is carried, said construction, as well as that shown in Fig. 3, being of :such character assto be ap licable tosoda fountains already in use, w erein normal thermic circulation of the li uid within the receptacle. has been depende upon and,

Fig. 5 is an elevation of the terminal block shown in Fig. 1.

In the drawings 10 indicates the main body of a soda fountain with heat insulated walls of colnmon character, the top ofsaid main body being covered by a metal cover 11 which, together with'the heat-insulated top, is perforated at 12 above the receptacle 13 within which is mounted the boiler'14, the coil 15 for carbonated water, and the boiler 16 for uncarbonated water.

is a perspective View of another,

In the form shown in Figs. 1 and2 the re-- ceptacle 13, at one side, is provided with a chimney-like lateral extension 17 which extends downwardly from the top of the receptacle to apoint well below the normal liquid 'level which is to belmaintained in the re-- ceptacle, and at its lower end is y as indicated at 18. Above the open upper end of the chimney 17 the heat-insulated top of the main body 10-is perforated at 20 to-receive a cylindrical shell 21 of .heat-iiisulatingand electrical insulating material." The upper end of this shell 21 is provided with an outwardlyprojecting flange 22 adapted to rest upon the cover plate 11, which is suitably perforated for the reception of the shell, and at its lower end is providedwith an inwardly projecting flange 23. v I

Mounted 'n the top of the main body,

alongside shell 20 is a terminal blockv25, of

electrical insulating material provided with I a pair of upwardly presented terminal clips' 26 and 27.

Sleeved within shell 20 is a small electric motor 30 the axial length of which is considerably lessthan the axiallength of'shell 20 and which, at its outer end, 'is provided with a metallic cap or cover 31 having an.

outwardly projected circumferential flange 32 adapted to rest upon flange22 of shell 20. The motor Alnit 3031 is held in place by metal screws 33 passing throughflanges 32 and 22 and top plate 11 into nuts 34. in contact with the under surface of cover 11 so that the body of the motor is grounded on the top plate 11. l

Motor 30 is provided with terminals 35- arcompartment 13 and, in the form shown in- Fig; 2, will support the propeller at about i the level of the upper end of the'incline 18.

In the form shown in Fig. 4 shell 21 is supported in a metal c over 40 adapted to close perforation 12, being so arranged that propeller 38 will lie within the liquid in the compartment 13 at such point that the pro peller may freely rotate without contacting with the boiler or either one of the water coils. The axial length of shell 21 is such 'as ,to be less than the distance between the cover and the normal liquid level in compartment 13. v A

In the form shown for the perforation 12 isperforated at a plu= rality of points 51, some of'which are clbsed by. receptacles 52 each providedwith a cover 53, and one of which is closed by a cover 54,

l by which the motor unit iscarried, as clearly shown in' Fig. 3. I 'In theforms shown in Figs. 3 and 4 an is provided for the reception of a portable plug 56 of ordinary form,

In each of'the forms shown the arrangement is such that-a forced' down-flow of liq-.

uid' incompartment 13ri1ay be set up alonga line somewhat removed from the boiler tubes, thus producing a f orced upward movement of the liquid adjacentjtheboi'ler tubes and a, consequent forced circulation of the liquid around the water, coils in such mannerthat the tendency of iceaccumulation upon the boiler tubes is retarded, thereby maintainin a higher cooling efliciency of the boiler relati e to, the water coils. 'Because of in Fig. 3the cover 50 and it may be given a pleasing-contour, without sharpprojections, so that it will'not interferewith the operations of the soda'disr .vpenser.

Iclaim as m invention: I 1. In a soda ountain, the combination with the main heat-insulated body. having a perkeptbright, so

forated metal cover plate and a perforated top, a li uid-container arranged in said body below said rforations and a boiler of a mechanical re rigerator and watercoils in said container, of a propeller arranged in said container below the normal liquid level thereof, and a small electric motor having a vertical shaft carrying said pro eller, the body of said motor being grounde cover plate.

shaft projected below said normal liquidlevel, and a propeller carried by the lower end of s'aidshaft.

3. In a soda fountain, the combination with the main heat insulated body havingv a perforated metal cover plate and a perforated top, 'a liquid container arranged in said body below said perforations, and a boiler of ap mechanical nefrigerator and water coils in electrlcal connector 55, leading to the motor,

said container, of a shell of heat-insulating material projected downwardly .t'oward the normal liquid-level in the container, a small electric motor vertically removably mounted i said s'helland having a vertical shaft proje'cted below said normal liquid-level, the body of said'motor being grounded on the metal cover plate, and a propeller carried by .the lower end of said-shaft. I

4". As an article of manufacture, a cover for the opening of a soda fountain which affordsaccess to the mechanically refrigerated liquid-containing compartmentthereof, which cover carries a downwardly projectupon the metal.

2. In a soda fduntain, the combination with 9 I the metallic connection between the motork. g Shell, and a Small electric m tor m unted body and the extended metal cover plate of in said shell, said motor having the main body. of tha fountain, the heat .unshaft provlded at its lower end with a propela" vertical submergejthe propeller in the liquid in the t 1 compartment.

5; Inasoda fountain, the combination with the main heat-insulated body having a perforated to a liquid container arranged in the body elow said perforation an having a chimney-like extension at one side, saidextension being provided with an inclined tension, and a. propeller carried by said shaft below the normal liquid level in said container.

In witness whereof I have hereunto setmy hand at Chicago, Illinois, this 7th day of ,March, A. D. one thousand nine hundred and twenty-nine. r FRANKLIN HUNT.

bottom wall, and a boiler of a mechanical refrigerator and water coils in said container, of a small electric motor arrangedin vertical alinement with the u perend of said chimney-like extension and aving a vertical shaft extending downwardly into said extension, and a propeller-carried by said shaft below the normal liquid-level in said container and positioned to direct a stream against said inclined wall. t o

6. In a soda fountain, the combination with a the main heat-insulatedbody having a per forated metal cover'plate and a perforated top, a liquid container arranged in the body below said perforations and having a chimney like extension at one side, said extension being rovided with-aninclined bottom wall,

and a oiler of a mechanical refrigerator and water coils in said container, of a small electric motor arranged in vertical alinement with the u gar end of said chimney-like extension an aving a vertical shaft extending downwardly into said extension, and a pro-' I peller carried by said shaft below the normal liquid-level in said container and ositioned 3 to direct a stream against said inc 'nedwall. 7. In a soda fountain, the combination with the main heat-insulated body having-a perforated top, a liquid container'arran ed in the body below said perforation. and aving a chinmey-like extension at one side, said extension being provided with aninclined bottom wal'l, .and a boiler ofamechanical refrigerator and water coils in said container, of a small electric motor arranged 'in vertical alinement with the upper end of said chimney-like extension, a heat insulating shell shieldin the motor from said top, 'a vertical sha driven b said motor and extending-downwardly m said extension, and a propeller carried by said shaft below the normal liquid level in said container.

8. In a soda fountain, the combination with the main heat-insulated body havinga perforated .metal cover plate and a perforated top, a liquid container arranged in the body below said perforations and having a, chimney like extension at one'side, said extension being-provided with an inclined bottom wall, and a boiler of a mechanical refrigerator and o watercoils in said'container,'of a small 'elec-. tric motor arranged in verticalalinementwith I the upper end of said chiin'ne -]ike extension, a heat insulating shell shie ding the motor from said top,-a vertical shaftdriven by said; motor and extending downwardly in said ex -j

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