US1402885A - Churn - Google Patents

Description

E. A. PERRETEN.

-CHURN.

APPLICATION FILED OCT. 14, 1920.

Patented Jan. 19, 1922.

3 SHEETS-SHEET 2.

Fell

CHUBN.

Specification of Letters Patent.

Patented Jan. 10, 1922.

Application filed October 14, 1920. Serial No. 416,806.

To all whom it may concern:

Be it known that I, Ennns'r A. PnRnn'rnN, a citizen of the United States, residing at Carrollton, in the county of Carroll and State of Missouri, have invented certain new and useful Improvements in Churns, of which the following is a specification.

This invention relates to improvements in churns especially adapted for churning butter and for mixingthe batter of cakes, hot cakes, muffins and the like.

An important object of this invention is to provide a churn having novel means for agitating the contents so that the same are caused to partake of an inward vertical movement within the receptacle as well as a rotary motion so that the material is thoroughly and efficiently mixed.

A further object of the invention is to provide a device of the class described comprising a sieve arranged above the bowl and provided with novel means whereby the material such as flour may be gradually supplied to the churn while the latter is in oporation.

A further object of the invention is to provide a churn having means whereby the driving connection between the agitator of the churn and the agitator of the sieve may be broken so as to render the sieve inoperative.

A further object of the vide a churn of the class described which may be applied to bowls of a variety of sizes.

A further object of the invention is to provide a device of the class described which is durable, desirable in use and cheap to manufacture.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this application and in which like numerals are employed to designate like parts through the same:

Figure 1 is a perspective of the improved churn, parts thereof being broken away;

Figure 2 is a central vertical longitudinal sectional view through the same;

Figure 3 is a fragmentary plan view of the churn, parts being broken away;

Figure 4 is a horizontal sectional view taken in a plane with the upper side of the bowl;

Figure 5 is a sectional view through the invention is to pro-.

bowl, the view illustrating the formation of the deflecting members of the bowl;

Figure 6 is a detail elevation illustrating the means for connecting the agitator to the shaft of the same;

Figure 7 is a fragmentary bottom plan view of the agitator and shaft of the same;

Figure 8 is a detail view of the adjustable handle embodied in the invention;

Figure 9 is a detail view illustrating the means for breaking the driving connection between the sieve and the agitator of the churn;

Figure 10 is a detail sectional view taken on line 10l0 of Figure 9.

i In the drawings wherein for the purpose of illustration is shown a preferred embodiment of the invention, the numeral 15 generally designates a frame which is adapted to be detachably applied to a bowl indicated by the numeral 16. The frame 15 comprises a sleeve 18 having the lower end provided with radially extending arms 20, the terminal portions of which are detachably connected to an annular flange 22 formed on the upper end of the receptacle. The frame 15 is further provided with a radially disposed arm 24 having its terminal portion engaged with the flange 22. As illustrated in Figures 1 and 2, a pair of standards 28 are mounted upon the arm 24 and are provided with bearing openings through which a shaft 30 carrying a crank arm 31 is extended. The crank arm 31 has an outer section 33 adjustably connected thereto by means of a pin 34. When it is desired to lengthen the crank arm 31 it is merely necessary to extend the hinged section 33 to the position illustrated in Figure 2. A bevel gear 38 is mounted upon the shaft 30 between one of the standards 28 and the sleeve 18 and meshes with a pinion 40 mounted upon an agitator shaft 42.

In carrying out the invention, the usual splash system for the material is eliminated and is replaced by an agitator 43 having a pair of wings 44 curved opposite their direction of travel and gradually straightening toward their ends. The wings 44 are adapted for movement in a clockwise direction for imparting a similar movement to the material within the bowl 16. The longitudinally curved wings 44 are curved in a direction opposite the direction of rotation of the agitator so that the material will be thoroughly agitated and caused to partake of 56 to the squared head 54 vided with an agitator 66 movement in a circular path. The movement thus imparted to the material is accompanied by a degree of centrifugal force which directs the material outwardly into contact with the side walls of the bowl.

[is the material is moved outwardly it comes in contact with a pair of oppositely disposed deflectors 46 formed on the side walls of the bowl. The deflectors 46 may be attached to the bowl or may be formed in tegral with the same and are, as illustrated in Figure 5, inclined in the direction of motion of the material. Also the deflectors 46 have their lower ends inclined inwardly, as indicated at 47, and their sides inclined in-- wardly so as to direct the material up ardly as well as inwardly. Therefore as the material moving in a circular path contacts with the deflectors, the same is moved upwardly and inwardly and permitted to fall downwardly to the center of the bowl upon reaching the limit of its upward movement. This movement imparted to the material causes the same to be thoroughly mixed with aminimum expenditure of'timc and effort. The lower portion of the agitator shaft is bifurcated'to form a pair of arms 49 which are connected to the agitator 43 by means of rivets 50 or other suitable fastening devices.

As illustrated in Figure 2, the upperportion of the shaft 42 is formed with a squared head 54 slidable vertically within the squared bore 58 of a sleeve coupling 56. The sleeve coupling 56 is slidable vertically within a cylindrical opening 57 in the sleeve 18 and is adapted to be released from driving connection with the shaft 42 by means of a longitudinally movable releasing device or rod 58. With particular reference to Figure 9, it will be observed that the rod 58 is slidable beneath an annular flange 59 formed on the upper end of the sleeve coup ling 56 and has one end portion offset as indicated at 60 so that as the releasing device is drawn rearwardly the terminal portion 61 of the same will be engaged with the flange 59 to elevate the sleeve coupling 56. When it is desired to reconnectthe sleeve coupling 7 of the agitator shaft, the releasing device 58 may be moved forwardly to permit the coupling to drop.

The rear end portion of the releasing device 58 is slidable through a bracket 63 and is formed with a handle 64.

Arsecond agitator shaft 65 is provided with a squared head 66' slidable within the opening 53 so that as the coupling 56 is rotated the shaft 65 will also be rotated. The upper portion of the shaft 65 is proadapted for stirring-the contents of a sieve or receptacle 67. The bottom of the receptacle 67 is in the form of a screen or foraminous body 68 so that as the agitator 66 is rotated the matebatters, the agitator 66 rial, such as flour within the receptacle 67, will be permitted to pass from the receptacle into the bowl 16. The receptacle 67 is adapted for use when mixing the batter for cakes, pan cakes and the like, and when it is desired to churn butter the receptacle 67 and the agitator 66 are, of course, not used. In the latter case the coupling 56 is elevated so as to break the driving connection between the agitator shafts 42 and 65. However, the agitator shaft 42 remains geared to the drive shaft 30 so that as the handle is rotated the agitator 48 will also be rotated.

it will be noted with reference to Figures 1 and 2 that the receptacle 67 is supported by a spider 70 mounted upon and secured to a U-shaped support 71, which latter is mounted upon the upper end of the stationmy sleeve 18. One of the arms of the spider 70 is provided with a depending bracket 72 having an opening receiving the rod 58. In order that the shaft 65 will not be permitted to move upwardly when the coupling 56 is elevated, the same is provided with a retaining pin 73 which engages the adjacent portion of the U-shaped yoke 71.

From the foregoing description, it will be apparent that as the agitator 43 rotates the contents of the bowl will be given a circular motion and will be caused to contact with the deflectors 46, whereupon the material will be elevated and directed inwardly. The upward and inward move bowl will cause the material to drop to the center of the bowl to the agitator.

In using the device for mixing various may by dropping the coupling 56 into engagement with the head 54 be operatively connected with'the drive shaft 30 so that the contents of the receptacle 67 may besupplied gradually to the bowl. 1

It is to be understood that the form of the invention herewith shown and described is to be taken as a preferred example of the and that such minor changes in arrangement and construction of parts may be be engaged again by made as will remain within the spirit of the invention and the scope of the appended claims. 7

Having thus described the invention, what is claimed as new is:

l. The combination of a bowl, a frame removably engaged upon and supported by the edge of the bowl, operating mechanism carried by said frame and including a vertically disposed shaft extending into the bowl, an agitator carried by said shaft to work over the bottom of the bowl and comprising reversely curved oppositely disposed blades having tangentially arranged straight terminals, and deflectors on the wall of the bowl at diametrically opposite points theremosses of, said deflectors extending from the bottom of the bowl to near the top thereof and having their edges presented to the agitator blades inclined upwardly and rearwardly in the direction of movement of the blades.

2. The combination of a bowl, an agitator within the bowl at the bottom thereof comprising reversely curved oppositely extending blades having straight tangential terminals, means for rotating said agitator, and deflectors on the wall of the bowl at diametrically opposite points thereof, said deflectors extending from the bottom of the bowl to near the top thereof and having their edges presented to the agitator inclined upwardly and rearwardly in the direction of movement of the agitator.

3. The combination of a bowl, an agitator within the bowl at the bottom thereof and comprising a rotary shaft, and agitator blades curved laterally in opposite directions from the said shaft and then extended along straight lines tangential to their curved portions, the straight portions of the blades occupying approximately parallel planes, and deflectors on the wall of the bowl at diametrically opposite points thereof and extending from the bottom of the bowl to near the top thereof and having their edges which are presented to the agitator'inclined upwardly and rearwardly in the direction of movement of the agitator.

In testimon whereof I affix my signature.

ERNE TA. PERRETEN. [L.S.]

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