US428148A

US428148A - Ice-cream freezer

Info

Publication number: US428148A
Authority: US
Publication date: 1890-05-20
Anticipated expiration: 1907-05-20

Description

(No Model.) 2 sheets-sheet 1.

E. H. SHAW.l

1GB CREAM FREEZBR.

No. 428,148.- Patented May 20, 1890.

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2 Sheetsf-Sheet 2.

E. H. SHAW. y IUE CREAM. FREEZER.

Patented May 20, 1890..

UNITED STATES PATENT OFFICE.

ELNER H. SHAV, OF CLAY CENTRE, KANSAS.

ICE-CREAM FREEZER.

SPECIFICATION forming part of Letters Patent No. 428,148, dated May 20, 1890.

Application filed December 19, 1889. Serial No. 334,265. (No model.) i

.To a/ZZ whom it may concern:

Be it known that I, ELNER H. SHAW, a citizen of the United States, residing at Clay Centre, in the county of Clay and State of Kansas, have invented a new and useful lee- Cream Freezer, of which the following` is a specification.

This invention has-relation to ice-cream freezers; and among the objects in view are to produce a cheap and simple freezer designed to rapidly freeze the cream, and this with a reduced amount of refrigerative agent,

' thereby effecting a saving in the cost of the same and the time and labor usually expended in operating the freezer.

lVith these general objects in lview the invention consists in certain features of construction, hereinafter specified, and particularly pointed out in the claims.

Referring to the drawings, Figure l is a perspective of a freezer constructed in accordance with my invention. Fig. 2 is a similar view, the cover thrown back. Fig. 3 is a vertical longitudinal central section; Fig. 4, a perspective of the rotary freezing-cylinder;

Fig. 5, a similar view of the stationary freez-V ing-chamber; Fig. G, a perspective of the delivery-blade.

Like numerals of reference indicate like parts in all the figures of the drawings.

l represents a chest of suitable dimensions, which is supported by suitable legs 2, and to one edge of the chest there is hinged the cover 3, the free edge of which is provided with hooks 4 for engaging the eyes 5, inserted in the chest in line with the hooks, whereby said cover may be temporarily locked in a closed position. The opposite longitudinal sides of the chest 1 are each provided with an open bearing 6.

7 represents the rotary freezing-cylinder, and the same is provided with opposite conical ends 8, from which projects stub-shafts 9, taking into the bearings G, one of said shafts being bent to form a crank-handle lO, whereby the cylinder lnay be revolved. The central periphery of the cylinder is provided with an inwardly-disposed annular channel ll, and at one side of the same there is provided an opening 12, covered by a screw-cap 13, by which the refrigeratve agent, preferably crushed ice, is introduced within the cylinder.

14 represents a stationary oblong ice-chamber inserted between the opposite walls of the reduced channel and the ends walls of the chest, that wall of the chamber adjacent to the channel being concaved or semi-cylindrical and adapted to embrace the cylinder for about one-half its circumference, and form between the same and the channel a narrow space. The upper end of the stationary chamber is provided with an opening l5, at the opposite sides of which are ways 1G, into which is slid a removable cover 17.

A recess 1S is formed in oneof the'end walls of the chest and opposite to the stationary refrigerative-chamber 14, and mounted within the recess is a scraper or delivery blade 19, the rear end of which protrudes from the opening out of the chest and the front end of which extends into the chest and against the reduced channel of the refrigerative cylinder. The blade is of a width agreeing with the channel and has its lower edge snugly pressed thercinto by means of a coiled spring 20, which connects the rear 'extremity of the blade with the end walls of the chest.

2l represents a cross-bar mounted between the opposite side walls of the chest and resting upon the blade, and serving to maintain the same in proper relation wit-h the rotary cylinder.

2 represents a cream-feeding can, from the bottom of which there depends a conical spout 23,'which takes into an opening 24.` of corresponding shape formed in the hinged cover 3 and directly over the channel of the cylinder. The upper end ofthe feeder is provided with a removable cover 25, in which is formed an opening 2G, and through the opening and depending into and closing the conical spout is a rod 27, provided at its lower end with a conical valve plug or head 28.

The operation of' my invention is as follows: The rotary cylinder and the stationary ice-chamber are both filled with the refrigen ative agent and the cream-feeder mounted in position upon the hinged cover. The rotary cylinder is now rotated to the right by means of the cranlchandle and the rod 27 raised to permit the cream to 'Ilow from this feeder upon the channel formed in the revolving cylinder, which cream is carried in a thin sheet around and between the semi-cylindrical face or side IOO walls of the stationary refrigerator-tank and to the delivery-blade l0, which scrapes the cream from the surface of the channel, and the same falls through an opening 30, formed in the bottom of the chest. By this construetion it is apparent that the cream will be thoroughly frozen in a very short space of time and with a minimum amount of refrigerative agent.. .By reason of the conical ends 0l the rotary freezing-cylinder the freezing medium or agent is all thrown to the center of the cylinder and surrounds the reduced channel, whereby the tull eiteet of the same is transmitted to the thin layers of cream as they pass around the cylinder.

The stationary refrigerati11g-chamber may be removed for cleaning purposes, dsc., by revolving the same partially to the lett and elevating. The rotary cylinder may also be removed for similar purposes by iirst remov ing the stationary chamber and then lifting the cylinder from its bearings.

It is apparent that by a freezer thus constructed either large or small quantities of cream maybe frozen at a time and the device is adapted for both retail and wholesale.

llaving thus described my invention, what I claim isl. In an ice-cream freezer, a receptacle, a rotatable freezing-cylinder mounted therein and provided with a channel, a scraping-blade terminating in the channel, and a stationary freezing-chamber embracing the cylinder, all combined and operating substantially as specified.

In an ice-cream freezer, a rotating refri ge1ativereceptaele of cylindrical shape and having opposite conical ends, and an intermediate cream-receiving channel, in combination with a freezing-chamber embracing the channel portion of the cylinder, substantially as specified.

23. The combination, with a receptacle, a rotating refrigerativeeylinder provided with a peripheral channel mounted in the same, of a refrigerating-chamber mounted on one side of and embracing the channel portion of the cylinder, and a cream-feeding can mounted above the cylinder and having a spout adapted to deliver cream within the channel of the same and directly infront of the chamber, substantially as specified.

l. In an ice-cream freezer, the combination, with a receptacle and a rotatable freezingcylinder having the peripheral channel, of a stationary freezing-chamber mounted in the receptacle at one side ol' the cylinder and having a semieircular concaved side wall loosely embracing the cylinder and combining therewith to form an intermediate channel, substantially as specified.

5. The combination, with the chest l, havin g an opening' in its bottom, and the hinged cover having the opening 24, of the freezingcylinderremovably mounted in the chest and provided with au operating-crank, and provided with a central peripheral channel, a scraper-blade terminating in the channel, a stationary ice-chamber located at the opposite end ot the chest and of a width corrcspondin g with the channel and having its side Wall concaved to embrace the channel and located a slight distance from the same, and the cream-receptacle mounted on the hinged cover and having a spout inserted through an opening in the same and arranged over the channel, and a valve-plug mounted in the spout., substantially as specified.

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

ELNER ll. SHAW'. lVitnesses:

M. S. ToNsEv,

LArNmvoi-rrI-Iv.