US2229238A - Mixing machine - Google Patents

Description

Jan. 2l, 194i. 5 J. CASH l 2,229,238

MIXING MACHINE Filed March 6, 1940 2 Sheets-Sheet l ormeyV Jan. 21, B J CASH MIXING MACHINE Filed March 6,` 1940 2 Shets-Sheet 2 r//ff/ Patented Jan. 21, 1941 UNITED STATES rATENT OFFICE 1 Claim.

The present invention relates to new and useful improvements in mixing machines particularly for mixing chemicals with Water for water plants although it will be understood, of course,

that the apparatus may be used for any other purpose for which it may be found adapted and desirable.

The primary object of the invention is to provide, in a mixing machine of the aforementioned character having an oscillating movement, a novel construction and arrangement whereby a comparatively simple crank and pitman drive may be satisfactorily used as the actuating means. Y

Another very important object of the invention is to provide a mixing machine of the character described embodying a novel combination and arrangement of agitators `or paddles for thoroughly and expeditiously mixing the chemicals and water.

Other objects of the invention are to provide a chemical and water mixing machine which will be comparatively simple in construction, durable,

compact and which may lbe manufactured andoperated at low cost.

All of the foregoing and still furthe-r objects and advantages of the invention will become apparent from a study of the following specica- K tion, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure l` is a vertical sectional View through a mixing machine constructed in accordance with the present invention.

Figure 2 is a vertical sectional View, taken substantially on the line 2--2 of Fig. l.

Figure 3 is a View in horizontal section through a corner portion of the invention, taken substantially on the line 3 3 of Fig. 1.

Referring now to the drawings in detail, it will be seen that the reference numeral I designates a concrete besin of suitable capacity. Mounted on suitable supports 2 in the basin I is a pair of parallel beams 3. Mounted on the beams 3 are bearings 4. The reference numeral 5 designates a horizontal shaft having its end portions journaled in the bearings 4.

rThe reference numeral 6 designates generally v in Fig. 1 of the drawings.

depending portions. Extending across the upper portions of the arms 8 and secured thereto and to the disks 1 are bars 9.

The agitato-r 6 further includes bars I0 extending between the end portions of the bars 9. 5 Secured at spaced points on the bars I0 are normally horizontal paddles Il. Mounted on the lower end portions of the arms 8 are bars I2. Secured at spaced points o-n the bars I2 are normally inclined paddles I3. Braces I con- 10 neet the lower portions of the arms 8 while braces I5 extend between one end portion of the bars 9 and the lower portions of a pair of the arms 8. Mounted o-n the upper portion I6 of the basin I is a suitable electric motor Il. Mounted on l5 the shaft of the motor I'I is a crank I8. A pitman I9 operatively connects the electric motor I'I to one end portion of one of the bars 9. A slot 2B in the basin I accommodates the pitman I9. 20

It is thought that the operation of the machine will be readily apparent from a consideration of the foregoing. Briey, as the electric motor I I drives the crank I8 the pitman I9 oscillates the agitator 6 in the basin I, the paddles 25 II and I3 moving back and forth. The agitator Ii, being mounted eccentrically on the shaft 5, normally rests by gravity in what lmay be considered the neutral position illustrated in Fig. 1 of the drawings. The construction and arrange- 30 ment is such that when the crank I8 is on either dead center the oscillating agitator 6 is at the limit of one of its strokes or movements. Thus, the tendency of the eccentrically mounted agitator 6 to return by gravity to its normal position 35 which materially assists the crank and pitman drive past dead center. The basin I is usually filled to approximately the level indicated at 2I The crossed elements 8 constitute what maybe considered X frames 40 forming a part of the agitator 6.

It is believed that the many advantages of a mixing machine constructed in accordance with the present invention will be readily understood and although a preferred embodiment of the ap- 45 pfaratus is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed. 60

What is claimed is: Y

A chemical mixing machine comprising a container, an agitator mounted for oscillation within said container, said agitator comprising an axle rotatably supported in said container, a pair of 10 tally on the upper portions of the crossed bars and projecting therebeyond, bars mounted to connect the end portions of the second named braces, paddles mounted on the last named loars in a horizontal plane in spaced relation to each other, power means located externally of the container, and means including a link connecting the power means to an end portion of one of the second named braces.

BARTLEY J. CASH.

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