US388925A - Ice-cream freezer - Google Patents

Description

(No Model.)

C. SPORNHAUER.

1GB CREAM FRBEZER.

No. 388,925. Patented Sept. 4, 1888.

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llnirnn Sintes Armer Ori-ica CHARLES SPORNHAUEB, OF COLD VATER, OHIO.

ICE-CREAM FREEZER.

SPECIFICATION forming part or" Letters Patent No. 388,925, dated. September e, 1888.

application filed August 3, 1387.

To @ZZ whom it 11i/tty concern:

Be it known that I, CHARLES SronNiLiUne, a citizen of the United States, residing at Cold Watcr, in the county of Mercer and State of Ohio, have invented a new and useful Improvement in Ice-Cream Freezers, of which the following is a specification.

My invention relates to improvements in ice-cream freezers; and it consists in certain novel features, hereinafter described, and specifically pointed out in the claim.

In the annexed drawings, Figure 'l isa perspective view of my improved device, and Fig. 2 is a central vertical section of the same.

Referring to the drawings by letter, A designates the outer receptacle or tub, having a socket in the center of the bottom, and B B are standards secured to the sides of the receptacle and projecting up above the upper edge thereof, and provided on their upper ends with the vertical projections b, havinglatches or buttons b pivoted on the ends.

G designates the inner body or vessel, having a 'conical bottoni with the apex down, and the said apex rests in the socket in the bottom of the outer receptacle, and thereby forms a journal or pivot for the inner vessel.

C designates the cover of the inner vessel, having a central vertical opening, c, asshown.

P designates a cross-head,which consists of a single bar having notches in its ends to receive the projections L ofthe standards. This cross-head is rested on the upper ends of the standardswith the projections b fitting inthe notches in its ends, and thebuttons b' are then turned over the ends of the cross-head to secure it in place, as clearly shown in Fig. l.

The lid or cover C is provided on its upper side around the edge with the gear-teeth K. A central opening, c, is formed in the lid, as before stated, and a sleeve, K', is attached to the upper side of the lid and communicates with the said opening.

A bearing is formed in the upper portion of one of the standards, and in said bearing is mounted a shaft, L, having a gear-wheel, L, ou the inner end to mesh with the gearwheel K.

Z designates a rigid collar formed on the shaft L, which bears against the outer side ot the standard, and an adjustable collar, Z', is

Serial No. 246,053. (No model.)

secu red on the other end of the shaft to press against the innerside of thestandard when the shaft is in place, to prevent all longitudinal play of the latter.

M designates a crank-arm secured on the outer end of the shaft L.

N designates a vertical shaft journaled at the upper end in the sleeve l', projecting slightly above the upper end of the latter and having a squared or angular upper end.

O represents the dasl1er,which is secured to the lower end of the rod or shaft N, and it comprises the radial arms O, to theouter ends of which, on one side of the vertical shaft, is secured the blade Oi, which extends down below the lower arm and is turned in and secured at the end to the lower end of the said shaft N. The dashcr is formed with a twist,sc as to give it the action of a screw, which draws the material at the bottom ofthe body upwardly, so as to prevent any settlement of sugar or other heavy ingredients. The radial arms are twisted and inclined both lengthwise and laterally, and the lower inturned portion, O3, of the blade O'l is so disposed as to cut very close to the body and agitate those ingredients which have a tendency to settle to the bottom of a vessel. The center of the bar or crosshead is provided with a vertical opening, p, through which passes thcsleevc K', the upper squared end of the shaft N projecting above the upper side of the cross-head.

llt represents a swinging latch pivoted tothe upper side of the cross-head, and having a square aperture or notch in the free end to lit the squared end of the shaft. The latter cannot turn,and consequently when the body is turned by rotating the gear wheel L it will turn around the dasher, which is stationary.

The object of constructing the device so that the rotation of the dasher may be allowed or prevented at will is as follows: It is a wellknown fact that in making ice-cream, it' the beating ofthe cream is very violent at lrst,be- 'fore it has been thoroughly cooled by the ice, butter is very apt to be formed,which is found in lumps in the ice-cream. To prevent thisI so arrange the machine that at tirst,before the cream is cooled, the dasher will turn with the body of the freezer and almost as fast as the latter, the only hindcrance being friction, and

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thus the cream is not agitated much and no butter is formed. When the cream has become cooled, (Which will soon happen if the body is turned with ice in the outer receptacle,) the latch R is engaged with the upper end of the shaft N, and as the motion of the dasher is stopped the agitation of the cream Willbe very violent and all the ingredients ofthe ice-cream will be thoroughly mingled.

It will be observed that, the bottom of the inner vessel being conical, alarger space than has heretofore been provided is left at the lower corners of the outer vessel for the packing of ice. This feature of my device overeomesa serious objection to the freezers heretofore provided,for it Was found that when the ice was packed around the sides of the inner vessel the cream was not frozen as rapidly as when the ice was packed under the bottom of the said vessel; but in the constructions heretofore devised it was found impractieable to pack ice under the bottom of the inner vessel, for the reasonthat the space was so small that the ice Would form a solid mas'saround the journal and prevent the rotation of the vessel.y I not only provide an increased surface for the action ofthe ice, but as: the apex of the conical bottom forms thejournal itisimpossible for the icevto freeze around it so as to `prervent the rotation of the vessel.

Furthermore, my freezer is especially adapte edffor use on occasions such as summer picnics;

85e., when the temperature is very high and it is necessary to rotate the vessel while the cream is being served in order to prevent the melting of the same. It will be observed that the cross-head is some distance above the top of the vessel, and that the central sleeve, rising vertically from the lid of the vessel,ipasses through the crosshead. In order,then,to raise the lidso as to permit the cream to beserved, but at the same time have it in position to be quickly slipped back on the vessel, it is only necessary to shift the driving-shaft longitudi-i nally in its bearing and then raise the lid, the central vertical sleeve serving as a guide to hold the lid directly over the top of the vessel. y The lid may be held in its raised position by any convenient means, and when the desired quantity of cream has been removed from the vessel the lid is dropped onto ythe same, the driving-shaft shifted into its former position, and the vessel can then be rotated, as will be readily understood. This feature of my invention is very advantageous, as I thereby overcome and prevent the melting ofthe cream, which ordinarily arises when the vessel containing the same is frequently opened to permit removal of the cream.

Having thus described my invention, I claim- The improved ice cream freezer herein described and shown, consisting of an outer vessel, A, having a dat bottom provided with a=eentral socket in its upper face, the inner` vessel, C, having an inverted conical bottom Withits apex resti ngin the socket in the bottom of the vessel A, the standards B B, secured to the sides of the outer vessel, A, and extend ing up above the same, the cross-head secured upon the Lipper ends ofthe standards, the lid C for the inner vessel, having a series of cogteeth, K, on its upper side, the sleeveK on thelid, projecting upwardinto the cross-head and movable through the same, the dasher within the'inner vessel, having its shaft N projecting upward through the sleeve K and above the cross-head, a latch on the cross-head adapted to engagethe projecting end of the shaft N, the shaftA Ljournaledinone of the standards and longitudinally movable in its bearing, and a pinion on the inner end ofthe said shaft engaging the teeth K on the lid, as set forth.

In testimony that I claim the foregoing as my own I have hereto affixed'my signature in presence of two witnesses.

CHARLES SPO RNHAUER.

Vitnesses:

J osIE Finck, LAURA J Asrnas.

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