US2446614A

US2446614A - Freezing apparatus

Info

Publication number: US2446614A
Authority: US
Publication date: 1948-08-10
Anticipated expiration: 1965-08-10

Description

1943' A. R. SHERICK 2,446,614

FREEZING APPARATUS 2 Sheets-Sheet 1 Filed Jan. 15, 1945 g t ww j/a Ma/ff; INV mm a @1 V 7 TOP/V5 Y Aug. 10, 1948. K 2,446,614

FREEZING APPARATUS Filed Jan. 13, 1945 2 Sheets-Sheet 2 Patented Aug. 10, 1948 UNITED STATES PATENT OFFICE FREEZING APPARATUS Adrian R. Sherick, New York, N. Y., assignor, by mesne assignments, to Master Industries, Inc., New York, N. Y., a corporation of New York Application January 13, 1945, Serial No. 572,600

Claims.- 1

This invention relates to freezing apparatus.

An object of this invention is a small, compact, inexpensive apparatus by the use of which frozen confections may be easily and quickly prepared.

Other objects, novel features and advantages of this invention will become apparent from the following specification and accompanying drawings, wherein:

Fig. 1 is a side elevation of an apparatus embodying the invention;

Fig. 2 is a section on the line 2-2 of Fi 1;

Fig. 3 is a. section on the line 3-3 of Fig. 2;

Fig. 4 is a detail perspective view;

Fig. 5 is a similar view of a modification of structural detail; and

Fig. 6 is a fragmentary section similar to Fig. 3 of this modification.

A casing consisting of a lower part or body It and an upper part or cover H rotatably supports within it a drum l2. The body Ill has its bottom formed in the shape of a relatively shallow tray sloping gently downward from both ends to the lowest point I3 which is somewhat nearer the rear end than the front end. The casing is supported by relatively short legs M with the casing bottom spaced slightly above the level of the feet l5 of the legs 14. The cover II is detachably hinged at its rear end to the body ID by any suitable means (not shown). The edge of the cover II is offset at It to form a shoulder for abutment with the upper edge of the bottom to to provide support for the cover I I. Pivoted catches ll are mounted on the cover I l for co-operation with eyelets 48 in the bottom to prevent accidental movement of the cover ll relative to the body It. The front wall of the cover H is equipped with a removable lid l9 while the rear wall of the cover H is provided with a removable lid 20. Preferably, these lids are pivotally connected at their upper ends to the cover in such manner that after having been rotated through an angle of approximately 90 they may be detached from the cover. Connections of this type are well known and are not herein described in detail.

One circular face of the drum I2 is provided with an axial trunnion 2| extending through an aperture in one wall of the housing, this aperture being formed by semicircular opposed notches provided in the edges of the body 10 and cover H. A head 22 at the end of the trunnion and a collar 23 on the trunnion spaced slightly from the head 22 serve to prevent axial movement of the drum l2. In the opposite circular face of the drum i2 is provided a circular aperture 24 in alinement with which is arranged a tubular memher 25 having a flange 25!; welded to the drum face. The tubular member 25 has a cylindrical neck 25 which extends through an opening in the side wall of the casing formed by two opposed semi-cylindrical recesses in the edges of the body It and cover I I.

Just beyond the outer surface of the casing, the tubular member is provided with a threaded portion 21 of enlarged diameter forming a shoulder engaging the outer surface of the casing. The threaded portion is provided with a curved flange 28, a portion of which is extended to form an arm 29 to the outer end of which is attached a handle 30 and an annular bead 28a projects from the surface of the flange 28. A threaded stopper 3| fits into the threaded portion 21 and has a collar 32 between which and the flange 28 there is arranged a gasket 33. The handle 30 provides means for effecting rotation of the drum 12.

The part In is formed at its upper edge with two portions 34 providing a. pair of slots 34a facing the drum i2 and spaced forwardly from the periphery thereof. A shaft 35 is arranged in the slots and is held therein by notches 36 formed in the bottom edge of the cover ll. Collars 35a on the shaft 35 prevent axial movement thereof. By this arrangement, the shaft 35 is supported for rotary movement but is held against lateral movement. A scraper blade 31 is fixed to the shaft 35 and is provided with end flanges 38. One or both ends of the shaft 35 are extended to form arms 39 extending radially from the shaft and formed at their outer ends into loops 40. Preferably, the arms 39 are of suitably tempered metal to render them somewhat resilient. The outer wall of the bottom I0 is provided with a notched bar 4| for co-operation with each arm 39 to retain it in a desired position. Clockwise rotation of the shaft 35 engages the upper edge of the blade 31 with the periphery of th drum l2 while counterclockwise rotation of the arm 39 disengages the blade edge from the drum. The blade edge may be engaged with the drum surface under different degrees of tension by proper location of the arm or arms 39 in the notches.

The receptacle 42 is removably arranged in the front end of the body it and studs 43 are provided to retain the receptacle in position. The receptacle 42 is arranged under the bottom or rear edge of the scraper 31 which is Of general trough-shape with one end open. As shown in Figs, 5 and 6, the receptacle 42 may be formed integrall with the scraper 31.

In the operation of the device above described, suitable refrigerant such, for example, as cracked ice and salt is introduced into the drum i2 and the stopper 1 is screwed into the threaded portion 21 to compress the gasket 33 between the collar 32 and the flange 28 with the bead 28a projecting into the gasket to form a tight seal. The drum is then placed in the body In and the scraper 31 either with or without the receptacle 42 is located in position with the shaft 35 in the slots 34a after which the cover H is attached to the body it. Next, the receptacle 42 is introduced through the opening in the cover front wall unless it was introduced with the scraper 31. Last, the mixture to be frozen is introduced through the opening in the cover on the back wail and both lids l9 and 20 closed. The shaft 35 is initially in such adjustment that the scraper blade does not engage the drum i2 and the latter is rotated either clockwise or counterclockwise as the operator prefers for a time suflicient to chill the mixture to congealing temperature. The arms 39 are then operated to engage the scraper edge with the drum surfac after which the drum is rotated counterclockwise. The congealed material adhering to the drum surface is removed therefrom by the scraper 31 and deposited in the receptacle 42. After the operation is completed, the receptacle is removed from the casing and its contents transferred to a suitable container. In the event that the receptacle is separate from the scraper blade, it can be removed through the cover front opening by lifting the lid l9. If the receptacle 42 is an integral part of the scraper blade 31,-- then the front end of the cover H must be lifted and. the shaft 35 removed from the slots 34a in order to take out the receptacle.

1.- A device of the character described comprising' a drum, a shaft parallel to the drum axis and spaced from the drum periphery, a scraper fixed to said shaft and having an edge facing" said drum periphery, resilient means for maintaining the scraper with its edge contacting the drum periphery, and means for engaging and retaining said resilient means in a desired position.

2. A device of the character described comprisa. casing, a drum rotatabiy supportedtherein, a shaft parallel to said drum axis and spaced from said drum periphery, a scraper fixed to: said shaft and having an edge facing said drum periphery, resilient means exterior of said casing for maintaining the scraper in contact with said drum periphery and notched means for engaging and retaining said resilient means in a desired position.

3. A device of the character described comprising a casing, a drum rotatably supported therein, a shaft parallel to said drum axis and spaced from said drum periphery, a scraper fixed to said shaft and having an edge facing said drum periphery, a resilient arm extending radially from said shaft, and a notch for receiving the end of said arm to maintain said scraper with its edge in contact with said drum periphery.

4. A device of the character described comprising a two-part casing, a drum rotatably mounted in said casing, a portion of one casing part being formed to provide a pair of slots facing said drum, a shaft received in said slots, said other casing part being formed to provide a notch receiving said shaft to fix said shaft against lateral movement while permitting rotation thereof.

5. A device of the character described comprising a two-part casing, a drum rotatably mounted in said casing, a portion of one casing part bein formed to provide a pair of slots facing said drum, a shaft received in said slots, said other casin part being formed to provide a notch receiving said shaft to fix said shaft against lateral movcment while permitting rotation thereof, a resilient arm extending. radially from said shaft, and a notch for receiving said arm to maintain the scraper in contact with said drum periphery,

ADRIAN R. SHERICKl REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,073,176 Quinn Mar. 9, 193? 2,214,312 Stovall Sept 10,1940

FOREIGN PATENTS Number Country Date 29%,649 Italy .l Mar. 31, 1932