US368150A - Ice-cream freezer - Google Patents

Description

(No Model.)

A. HOOPER.

IUE CREAM PREBZER. No. 368,150. Patented Aug. 9

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. UNITED STATES PATENT OEEICEO AMSEY HOOPER, OF ATHENS, OHIO.

ICE-CREAM FREEZER.

SPECIFICATION forming part of Letters Patent No. 368,150, dated August 9, 1887.

Serial No. 231,496. (No modeLl To all whom it may concern:

Be it known that l, AMsEY Hoornn, a cilizen of the United States, and a resident of Athens, in the county of Athens and State of Ohio, have invented certain new and useful Improvements in Ice-Cream Freezers; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which* Figure l is a perspective view of my improved ice-cream freezer. Fig. 2 is a vertical sectional view of the saine; and Fig. 3 is a perspective detail view, with portions broken away, of the coupling for the beater-shaft.

Similar numerals of reference indicate corresponding parts in all the figures.

My invention has relation to icecream freezers; and it consists in the improved construction and combination of parts of a freezer, in which the tub or receptacle for the ice and the beater are revolved in the same direction and the can in the opposite direction, as hereinafter more fully described and claimed.

In the accompanying drawings, the numeral 1 indicates an upright frame, the top piece, 2, of which is formed with two upright brackets, 3, having horizontal bearings 4 at their upper ends, and a shaft, 5, isjonrnaled in these bearings and is provided at one end with a crank, 6, or other means for revolving it, and at the otherend with a fly-wheel, 7, which, however, may be dispensed with when rotary motion is conveyed to the shaft from a motor having a steady rotary motion.

The top piece of the frame is formed with a vertical bearing, 8, in which a sleeve, 9, is j ou rnaled,havingashoulder, l0,bearing against the lower end of the bearing, and a bevel-pinion, 11, is secured to the sleeve above the bearing. The sleeve 9 has another sleeve, 12, journaled within it, and the latter has a bevelpinion,13, secured toits upper end and revolving in a recess, 14, in the lower pinion, and a third and still smaller pinion, 15, lo cated in the recess 16 in the center of the middle pinion, is secured to a shaft, 17, journaled in the inner sleeve, the three piuions having their beveled cogged Vfaces forming one conical plane and the inner sleeve projecting below the end of the outer sleeve, and the lower end of the shaft projecting below the end of the inner sleeve.

Oorrespondingl y shaped and sized bevelpinions 1S, 19, and 20 are secured to the shaft, the largest piuion,18,engaging the largest pinion upon the outer sleeve at one side, whereupon the second pinion, 19, meshes with the second pinion upon the inner sleeve, and is secured to the shaft facing the other pinions, the smallest pinion meshing with the pinion upon the vertical shaft. In this manner it will be seen that the outer sleeve and the ver tical shaft will be revolved at the same speed and in the same direction, while the inner sleeve will be revolved in the opposite direction, but with the same speed.

An arched frame, 21, is Aformed with a sleeve, 22, at its middle, which sleeve is secured by means of a set-screw, 23, to the lower end of the outer sleeve, and the ends of this frame are bent to form perforated ears 24, which fit upon pins 25 in notches 26 in the edge of the tulo 27, containing the ice. This tub is formed with a hollow conical cap, 2S, in the center of its bottom, with which it fits upon a conical step, 29, projecting from the bottoni piece, 30, of the machineframc, the said step being concentric with the sleeves and shaft in the top piece of the frame, so that when the outer sleeve is revolved the tub may he revolved by it.

r1`he can 31, containing the cream, has a hollow conical bearing, 32, in its bottom, with which it is pivoted upon a central step, 33, upon the upper side ofthe bottom ofthe tub, and this can is provided at its open top with a removable lid or cover, 34, and with a lid or cover, 35, fitting upon the inner lid,and formed with two seats or sockets, 36, at diametricallyopposite sides of the edge, both lids or covers having central perforations for the passage of the beater-shaft.

An arched frame, 37, is formed with a lsleeve, 38, at its center, with which it fits upon the lower end of the inner sleeve, having a set-screw, 39, for securing it, the ends of this frame being bent inward, as shown at 40, and fitting in the seats or sockets upon the upper or outer cover of the can.

The lower end of the vertical shaft is halved,

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as shown at 41, and a sleeve, 42, ts withl its ing a set-screw, 447, bearing against the f'lat side of the same, the sleeve thus connecting the vertical shaft and the beater-shaft causing them to revolve together. v

It will thus be seen that when the horizontal shaft is revolved the ice-tub will be revolved in the saine direction as t-he beater-shaft, and the can containing the cream will be revolved in the opposite direction, the cream being thus stirred and beaten while thc'can is brought in very rapid contact with the 'revolving ice mass, causinga rapid cooling and a consequent rapid freezing of the cream, the rapid freezing of the cream causing the latter to be light and palatable on account of its being frozen while beaten up, the yield of frozen cream being thus comparatively large to the amount of solid cream employed in its manufacture. l

When itis desired to take the machine apart for the purpose of filling or cleaning it, the sleeves of the arched framesv are loosened by their'set-screws upon the sleeves of the pinions, and the small sleeve upon the shaft and beater-shaft is loosened and slid up upon the shaft, when the frames may be raised and secured in this position upon the sleeves and the tub and can removed and cleaned or filled.

Having thus described myinventioml claim and desire to secure by Letters Patent of the United States- 1. In an ice-cream freezer, the combination of a frame having a vertical bearing in its top, a shaft, and an inner and an outer sleevejournaled within said bearing, a beveled pinion upon the upper end of each of said sleeves and said shaft, a horizontal shaft journaledV upon the ltop of said frame, beveled pinions upon said horizontal shaft engaging, respectively, with the pinions upon the sleeves and vertical shaft, an ice-tub secured to the lower end of the outer sleeve, a can secured to the lower end of the inner sleeve, and a beater secured to the lower end of the vertical shaft, said tub, can, and beater being pivoted upon central steps at their bottoms, one within the other, substantially as shown, and for the purpose set forth.

2. In an ice-cream freezer, the combination of an icetub having diametrically-opposite notches in its edges provided with pins, an arched frame having its outwardly-bent ends secured by perforations upon the pins in the notches and having a sleeve at its middle, an

outer sleeve, acan pivoted at its bottom upon a central step in the tub and having a removable inner cover and a removable outer cover formed with diametrically-opposite sockets or seats,` an arched frame having its inwardlybent ends fitting in the sockets and having a sleeve at its middle, an inner sleeve, and a dasher or beater having its upper end halved and having a sleeve fitting with its cylindrical bore upon the halved ends of the shafts, having a lug bearing against the flat side of one shaft end, and a set-screw bearing against the other shaft end, and me'ans,substantially as described, for rotating said sleeves and shaft, as and for the purpose shown and set fort-h.

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

AMsEY HoorER.

Witnesses:

J. M. Wool), JOHN GRAHAM.

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