US337634A - Ice-cream freezer - Google Patents

Description

(No Model.)

W. J. TATE.

ICE CREAM FREEZER. No. 337,634. Patented Mar. 9', 1886.

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mm STATES PATENT 0mm.

WILLIAM J. TATE, OF PHILADELPHIA, PENNSYLVANIA.

ICE-CREAM FREEZER.

SPECIFICATION forming part of Letters Patent No. 337,634, dated March 9, 1886.

Application filed April 30, 1885. Serial No.163,9l3. (No 1110361.)

To all whom it may concern:

Be it known that I, WILLIAM J. TATE, a citizen of the United States, and a resident of Philadelphia, Pennsylvania have invented certain lmprovements in Ice-Cream Freezers, of which the following is a specification.

My invention relates to certain improve ments in the well-known Seaman ice-cream freezer, in which the can is rotated .in one direction and the internal dasher with its scrapers in the opposite direction, the objects of my improvements being to render themachine more etficient in action and to permit repairs with greater facility than usual.

' one side of which are standards B B, having at the upper ends bearings for the driving; shaft D, which has the usual fly-wheel, E, and operating-crank F; or, if the machine is to be operated by power, the shaft may have at the outer end fast and loose pulleys for the reception of a belt. The inner end of the shaft D carries a bevel-wheel, a, which gears into two bevel-wheels, b and d, the wheel b being secured to the lid G of the can J, and the wheel it being keyed or otherwise secured to the shaft or spindlef of the dasher K, this spindle passing through a central opening in the lid G of the can, and having its upper bearing in a bar, g, secured by a set-screw to the end of a projecting arm, h, on the upper end of one of the standards B. The can J turns upon a stud in the bottom of the tub A, and the dasher- Web K has at the lower end a stud adapted to a bearing in the bottom of the can, arms j j projecting from the dasher-web, and serving to support and limit the movement of scrap ingblades is It. All of these parts are substantially similar in their arrangement and operation to the Seaman freezer; but the present machine differs from said freezer in several respects, which I will now proceed to describe. The shaft D is threaded at the inner end, and the wheel a is screwed onto this threaded end of the shaft and up to a shoulder formed by discontinuance of the thread, so thatsuch accurate fitting is not required as when a key and key-seat are used, and the wheel can be readily taken off and a new one applied by a person having no special mechanical skill. The lid G of the can has a central internally threaded boss, at, and the hub of the bevelwheel I) is extended below the Wheel, and is threaded externally for adaptation to said internally-threaded boss m, so that in case of injury to the wheel it can be removed and a new one substituted without. discarding the entire lid, as is the case where the wheel forms part of the lid. Moreover, the bearing for the spindle fis in the hub of the bevel-wheel, so that when the wheel is discarded and a new one substituted an unworn snug-fitting bearing for the spindle is provided. The upper end of the hub of the wheel is beveled, as shown, so as to prevent the accumulation thereupon of salt-water, oil, or other impurity which might find its way down around the dasher-spindlefaud intothe can. The dasherspindle fisthreaded at the lower end and adapted to a threaded opening in the upper end of the dasher-web K, so that the spindle can be removed when worn and a new one substituted therefor without discarding the entire dasher. 0n lifting the bar 9 the upper end of the dasher-spindle fis free from the control of the same, and the tub, with its can, dasher -spindle, and bevelwheels, can be moved away from the standards B. When this is done, access can be had to the interior of the can, the wheel d being first lifted from the upper end of the spindlej', and the lid G, with its wheel b, then removed.

In order to provide a convenient place of deposit for the wheel (1 when the latter is removed from the flasher-spindle, there is on the top of the arm h a stud, 12, adapted for the re ception and support of said wheel.

The dasher-web K has at the lower end a scraper, p, for cleaning the bottom of the can, the outer end of this scraper having an opening for the reception of a pin at the lower end of the scraper k, and the inner end having a projecting stem, 8, which is adapted to a transverse opening in the lower portion of the central web of the dasher and in a boss, t,

projecting therefrom, this boss insuring a much longer bearing for the stem 8 than when the latter has its bearing only in the dasherweb, and thereby preventing the rapid wear of said stem. The scraper khas at the upper and lower ends pivot-pins 10, which are adapted to openings at the ends of the upper and lower arms, j, of the dasher. These arms are rigidly connected to the central web of the dasher; but as they are made of malleable iron they can be readily bent for adaptation to the pins to, a. movable or detachable bearing for either of said pins being thereby rendered unnecessary.

I claim as my invention- 1. The combination of the lid G of the can,

having an internally-threaded boss, m, with the wheel b, having an externally-threaded hub adapted to said boss, and having a central opening forming the bearing forthe dasher spindle where the latter passes through the lid, all substantially as specified.

2. The combination of the dashe'r spindle, the can, and a spindle-bearing, having a beveled upper end to prevent accumulation of impurities thereon. as set forth.

3. The combination of the dasher-Web K, having a threaded opening in the upper end, the can having aiid, G, and the dasher-spindle f, screwed into the threadedopening of the daslicr \\-eb and projecting through a central opening in thelid, as set forth.

4. The combination of the lower scraper, p, having a projecting stem, 3; with the dasherweb having a projecting boss, t, forming a bearing for said stem, as specified.

In testimony whereofI have signed my name to this specification in the presence oftwo subscribing witnesses.

M- J- TATE.

Witnesses:

HENRY Bossn z'r, HARRY SMITH.

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