US2597536A - Liquid mixer - Google Patents

Description

S. SHIELDS LIQUID MIXER May 20, 1952 2 SHEETS-SHEET 1 Filed June 8, 1949 INVENTOR SAMUEL SH|ELDS .BYIZ/% May 20, 1952 Filed June 8, 1949 S. SHIELDS LIQUID MIXER 2 SHEETSSHEET 2 INVENTOR SAMUEL SHIELDS ATTORNEYS Patented May 20, 1952 UNITED STATES PATENT orr cs LIQUID Samuel Shields, Racine, -Wis.

-Application'.lune 8, 1949, Serial No. 97,727

locu (Cl. 259 -75) Myinvention refers to oscillating liquid mixin machines, :and it is particularly applicable .to .zdrinkmixers.

The :primary object :of :myinvention is to pro- ;nide 28 :simple .and 'efiective actuating .-mechanism 'fOr.;Osci11at-ing the :liquid container, whereby :the "usual vibrations developed in machines of this character .are eliminated, resulting in silence of :the :parts, due to the specific structural features --employed. :In other .words, :the machine in its "A still further-object of my invention is'toprovide a motor driven fly wheel having a=true-cir-' :cular #cam channel therein, the circular channel beingslightlyoff center from the fly wheelcenter, whereby :a rocking arm that engages the cam channel will impart oscillation to a master lever carrying the liquid container, it being understood that the container will oscillate back and forth once in each cycle of the fly Wheel.

A further object of my invention is to provide a container having a slip cover, the said container being held in its nested position, relative to the master lever, by a latch, which latch is carried by a. yoke for locking and releasing the said container from the yoke.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the novel construction, combination and arrangement of parts, substantially as hereinafter described, and more particularly defined by the appended claim, it being understood that such changes in the precise embodiment of the herein disclosed invention may be made as come within the scope of the claim.

In the accompanying drawings is illustrated one complete example of the physical embodiment of the present invention constructed according to the best mode so far devised for the practical application of the principles thereof.

In the drawings:

Figure 1 represents a sectional elevation of a machine embodying the features of my invention, the section being indicated by line I-[ of Figure 3.

Figure 2 :is ;a;. 1an.sectional view of the same, the section being indicated :by .line .2--2 QfFJ .g

:Eigure :3 is a longitudinal sectional view :through the machine, thezsection being indicated by line 3-i3 of. Figure, 1.

Figure 4 is a detailediace view of adrivenrfiy wheel and associated parts, the section being indicatedby line 4---r4 .of Figur.e.l2.

Figure 5 across section :01 the same, .thesec- :tion being indicated by line .5-5 of Figure Anand Figure '6 is .a' fragmentary Jiront ;view .of the machine housing, illustrating the time switch :in

dotted lines, :with its main button -.and auxiliary buttonextending ithroug'hsslots of they housing.

:Rreierring :bycharacters to the drawings,..I indicates :abase shaving upwardly extended legs 2 connectedlcy a'rbracee'bar 3.

The bar. :3 has secured :thereto a standard-electricunotor #:carrying a backgear housing :4'.,-.and

extending from which back gear housing. i a :drivesshaftiS that :carries a =V-shaped ;pulley:6.

Secured to the .upper :face .of :the frame strap .fsiis a block :1, which block :has shrunk therein a pair :of aligned :bearings :8, :8 and an ,ofiset :bearing 9, which offset bearing has journaledtherein astud. shaft JI ll. Theshaftilll thas securedzthereto :a fly wheel II, provided :with a peripheral belt groove, for the reception of an endless belt I2, which belt connects the fly wheel and the back gear pulley 6, whereby said fly Wheel is driven.

As indicated in Figures 1, 4 and 5, the inner face of the fly wheel I I is formed, with a circular cam channel I2, the center of which channel is slightly oflset from the center of the fly wheel. The block I has journaled therein a rock shaft I3, one end of which has secured thereto a rocker arm I4, while the opposite end of said rock shaft I3 has secured thereto a segmental sector or toothed arm l5.

Journaled in one of the bearings 8 of the block is a short shaft I6, which short shaft at each end projects beyond the block 1. One end of the short shaft I6 carries a tooth pinion II, which pinion meshes with the teeth of the arm I5, as best shown in Figures 1 and 3 of the drawings.

The opposite end of the short shaft Iii-has secured thereto a master lever I8, and the outer end of said master lever has secured thereto a transversely disposed yoke I9, having vertically disposed arms I9, I9", the yoke intermediate of said arms being provided with parallel saddle straps 20. The master lever yoke I9 has nested therein a cylindrical liquid container 2|, which and slip cover 2|.

usual liquid agitator fork 22, and the cover and bottom of said container is provided with centrally disposed depressed cups 23, 23'. When it is desired to secure the container to the master yoke, it is dropped upon the saddle 20 of the yoke, and the cup 23' of the bottom end of said container engages a pin 24 carried by the yoke arm [9. The cup portion 23' of said container cover is also engaged by a pin 24, which pin is carried by a spring controlled clip 25. The clip 25 is pivoted to the yoke arm l9" and its bottom apertured end is mounted about a stud 25', between which clip bottom end and the yoke arm l9" there is interposed a coil spring, whereby the clip pin 24' is held in its seat with relation to the cup cover 2|.

Hence, to remove or seat the container, it is only necessary to manually manipulate the spring controlled clip 25, whereby the container is removed or it may be firmly seated in the yoke.

Fitted over the entire mechanism is a housing 26, which is seated upon the base I, and the upper end of the housing is provided with a slot 26' therein, through which slot the master lever extends, whereby the same, with its yoke and container are exposed.

The front wall of the housing has secured thereto a standard time switch A, carrying the usual main button a, and an auxiliary button I), which buttons project through slots in their housing wall, whereby they may be conveniently manipulated. An electric current is introduced through the housing 26 by a cable 0, having supply wires d and e, which are suitably connected to the time switch buttons a and b, and said wires are also connected to the motor. For example, should it be desired to oscillate or mix the container fluid for seconds, the time switch would be so set by manipulating the button a, whereby the motor is energized, and through its connections to the actuating mechanism, the container will be oscillated back and forth for 15 seconds, after which period the mechanism of the switch, not shown, will automatically break the electric circuit.

While I have illustrated the anti-vibrating mechanism specifically arranged to operate a 4 fluid mixer, it is understood that said mechanism may be utilized for various different purposes, and it is apparent, while I have shown the device applicable to a drink mixer, the same may be used for mixing any type of fluids, such as oil, paint, or the like.

It should also be noted that the rocker arm H carries an anti-friction roller H, which roller enters the cam channel l2, whereby the master lever is oscillated once back and forth in one revolution of the fly wheel.

I claim:

In a device for mixing liquids, a support, a

4 motor on the support, a horizontally disposed drive shaft rotatably mounted on the support, a fly wheel secured to the drive shaft for rotation therewith having a cam groove eccentric to the axis thereof, means including a pulley belt fitted over the outer periphery of the fly wheel for rotatin the drive shaft from the motor, a horizontally disposed cross shaft rotatably mounted on the support at one side of the drive shaft, a crank arm secured to one end of the cross shaft having means engaging the walls of the cam groove, a toothed vertically extending sector arm secured to the other end of the cross shaft, a horizontally disposed rock shaft carried by the support disposed above the cross shaft, a pinion secured to one end of the rock shaft meshing with the teeth of the sector arm, and a work carrying vertically disposed rock arm secured to the other end of the rock shaft.

SAMUEL SHIELDS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 597,566 Richards Jan. 18, 1898 1,460,191 Altorfer June 26, 1923 1,490,214 Johnson Apr. 15, 1924 1,582,968 Bryant May 4, 1926 1,694,678 Bergh et al Dec. 11, 1928 2,002,323 Kurz May 21, 1935 2,107,718 Sperti Feb. 8, 1938

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