US5821A - Cream-freezer - Google Patents

Description

E. e. SEAMAN Ice Cream Freezer.

N0. 5.821. A Patented-0&3, 1848.

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' quence of the (well-known) manner of UNITED STATES PATENT OFFICE.

E. O. SEAMEN, OF PHILADELPHIA, PENNSYLVANIA.

CREAM-FREEZER.

Specification forming part of Letters Patent No. 5,821, dated October 3, 1848; Reissued November To all whom it may concern Be it known that I, EBER O. S'EAMEN, of the city and county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Apparatus for Freezing Cream; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure 1 is a geometrical projection of the complete apparatus, and Fig. 2 is a vertical section of the same, showing the interior of the can with the improvements claimed.

On a platform a, between two posts I), the tub c is placed. Centrally on the bottom of said tub is fastened a step or gudgeon d, on which a corresponding gudgeon or gudgeonbox 6, fastened to the underside of the cam f, sets. On the bottom :1 of the can f, in its center, there is another step 9, which receives the lower extremity of the vertical shaft 72,. This shaft passes through the lid '5 of the can, and through the center of a bevel cog-wheel j, fastened to the top of said lid. A short distance above the cog-wheel j, there is another similar one is, and the extremity of the shaft, above it, is held in its place by means of a screw Z, which passes vertically through the cross piece at connecting the posts 6, and its conical point entering a corresponding cavity in the upper end of said shaft. Back'of this shaft is a third, but vertical, bevel cog-wheel m, the cogs of which mesh in t ose of both the other wheels. This last-named cog-wheel is fastened to a horizontal shaft 11 which extends backward and rests or worksin metal boxes w. On said shaft is a fly or balance wheel 0, and on its back extremity is a crank and handle 29. The Whole is fixed in an appropriate frame work q, 1", and s.

It will readily be perceived that, in consegearing, the can will revolve in one direction, while the haft lt with its appendages, 7

inside of said can, rotates in an opposite one. i

of each of them is fastened, excepting the lowest one t, which is wider than the rest,

and the tenon or gudgeonof which plays freely in its corresponding perforation in the shaft? The permanent dashers are in shape similar to the blade of a knife,'and they are laced on the shaft in such a manner, that 1f the surface lines were continued gradually around the shaft and thus connected together, a perfect spiral line would be the result. Each upper and lower dasher has at or near its outer extremity a perforation or hole, in which the upper and lower gudgeon of a vertical scraper a plays. These scrapers are also similar to knife or sword-blades, and serve to detach or scrape off the frozen or freezing cream from the surface of the can, the general bulk of the cream forcing their edges close to the can, in consequence of the shaft, with the dashers and scrapers, revolving in an opposite direction to the can. What the scrapers u do for the inner vertical surface of the can, the lowest dasher (or scraper) 6 effects for the bottom surface; the other dashers serve to raise the cream, which, when up to its utmost height, descends again by its own gravity, and thus a continual displacingof the cream is effected, and thereby the process of freezing accelerated.

, What I claim as my invention, and desire to secure by Letters Patent, is

The side scrapers a, the bottom scraper t,

and in combination therewith the dashers t,

the whole being constructed, arranged, and

operating, substantially, in the manner and for the purpose hereinabove described.

E. O. SEAMEN.

Witnesses:

' FRANCIS BENNE, CHAUNGEY BULKLEY.

[FIRST PRINTED 1913.]

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