US1511641A - Ice-cream freezer - Google Patents

Description

LNM

@cv 9 M.E.SULUVAN ICE CREAM FREEZER Eiled Oct. 31. 1923 fw mi illlllllll guy",

rannte bla. ia. iena.

'MYRTLE 1E. SULLIVAN, 0F FORT STOCKTOFI', 'FEMS .10E-CREAM nl 1:1

application nledl october 31, 1929. Serial 11o. 671,9a9.

. v To all whom it may concern:

\Be it'known that ll, MYRTLE Fl. SULLIVAN, a citizen of the United States, residing at Fort Stockton, in the county of Pecos and State of Texas, have invented'certain new and useful Improvements in lcs-Cream Freezers, of which the following is a specification.

lldy invention relates to improvements in ice cream freezers and themain object of the invention is to provide a freezer which cools and freezes the cream hard, not only on its outer surface, but also and simultaneously in the center. Usually the cream remains soft in the center, while freezing hard on the outside. if v Another object of the invention iste construct the freezer so that two or more kinds of did'erently Havored vice creams may be produced at the same time.

Other objects and advantages of the invention will be understood from the following description.

. lln the accompanying drawing one embodiment of my invention has been illustrated, and; l

Figure 1 Irepresents a vertical axial section of the freezer; and

Figure 2, a horizontal section along line 2-l-2 of Figure 1. v

The exterior vessel or container 10 is preferably constructed with double walls 11 and 12 and double bottoms 13 and 1l s aced from each other and with heat ins atin material 15, such as asbestos lining, inserte between both the walls and the bottoms. -lln this manner a cold retaining vessel is provided, which is closed at its top by a tight htting cover 16 preventing warm air to enter the vessel. At 17 is shown a suitable handle for the cover and upon the inner bottom are secured spacing members or lugs 18 intended to raise the can 19 from the bottom 141, so that the freezing material may be packed all around the can.

Both the vessel 10 and the inner can 19 are preferably cylindricaland whilethe forrner is made of galvanized sheet metal, the inner can 19 may be made of black tin. The bottom 20 of the can 19 is provided with a central opening 21 from which rises a tubular column 22 secured to the bottom and extending above the upper end of the can, as

the side Walls of the can 19' by Ameans of two or more wings 23 dividing the interior into two or more compartments, these wings extending from the bottom 20 to the top of the can, as seen in Figure 1.

The can is closed at its top by means of a lid 2t with an annular ange 25. extending part Way down along the side of the can and clasps 26 are furnished on thecan 'to hold the Iid 524 in position thereon. This lid has a central sleeve 27 of an interior diameter suitable to engage around the upper end of the 'tubular column 22 and its top edge 28 is turned over to engage overthe top edge of the tubular column 22 in order to prevent all communication betweenthe compartments in the can and the exterior of the vessel 10.

The can 19 may be provided with radially projecting arms or handles'29 which are of a size to contact loosely with the interior wall 12 of the vessel 10 in order to position thecan 19 centrally therein.

When 'using this freezer, thecan 19 is rst filled with cream which may be of different flavoring in the two compartments shown in the drawing.- The lid is thereupon secured by means of the clasps 26 on top of -the can 19, and the latter inserted in the vessel 10. The freezing mixture such as salt and snow or crushed ice is then tightly packed closely around the can 19, the tubular column filled therewith and freezing mixture also packed over the lid 241 and around its sleeve 27. Finally the cover 16 is placed in position with its cylindrical flange 30 engaging the top end of the vessel 10 to exclude all warm air from the outside.

llt is evident that the freezing of the cream *will now take place simultaneousl from the inside through its contact with -t e tubular `column 22 containing freezing mixture, as

well as from the outside of the can through the freezing mixture surroundin .it-on all sides. The provisionof thetub ar column 22 will insure the radial freezinV in outward direction so that vthe center of the cream,

vet

which usually `remains soft will now be asI hard as the exterior .layer thereof.

1n order' tov increase the rapidity of freezing, the container or outer vessel 1() may .be mounted in a suitable crate to be revolved Afor spacing the can from the walls land bot-f tom of said vessel, and a lcentral tubular column secured in the bottom of said can and open at both ends, establishing communicationbetween the V,upper and lower strata of the outer vessel.

2. An, ice cream freezer comprising an outer vessel having a suitable closure, a can adapted to be inserted in said vessel, means for spacing the can from the walls and bottom of said vessel, a central tubular column secured on the bottom of said can and open at both ends establishing communication between the upper and lower strata of the outer vessel, a lid for said can adapted' to close its open end, a sleeve on the lid engaging around said column, and partitions 3. An ice cream freezer comprising an outer vessel having a suitable closure and spaced double walls filled with heat insulating material, a can adapted to be inserted in sald vessel, means for spacing'the can from the walls and bottom of said vessel, a central tubular column secured on the bottom of said can and open at both ends establishing communication between the upper and lower strata of the outer vessel, a lid for said can adapted to close its open end, a sleeve on the lid engagin around said column, and partitions exten ing between said column and the cylindrical side of the can dividing the same into a plurality of compartments, said means including radially extending handles on the can and feet below its bottom.

In testimony whereof I aiix my signature.

MYR'JJLE E. SULLIVAN. [1.. 5.]

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