US2543495A - Mixing machine - Google Patents

Description

Feb. 27, 1951 2,543,495

G. C. HENRY MIXING MACHINE 2 Sheets-Sheet 1 Filed Dec. 20, 1946 [Ural/tor Granville 0. Henry I? Zlfi a Attorneys Feb. 27, 1951 v G. C. HENRY MIXING MACHINE Filed Dec. 2-0, 1946 2 Sheets-Sheet 2 l 52 ll Q I Q) 1 i i l l 14 I l l 58 I I "60 I 34 i 62 46 I l\\\\ II J -4 \Pt 36 u mun?" n 1! 1171 n n n "I 24 r nn [2 2 J Ill 0 1a Fig. 6

IO fi [mm/for Granville 0. Henry Patented F eb. 27, 1951 UNITED STATES PATENT OFFICE MIXING MACHINE Granville C. Henry, Decatur, Ga.

Application December 20, 1946, Serial No. 717,389

This invention relates to mixing machines especially adapted for use with ground cottonseed, soy beans and the like.

An object of this invention is to provide means for removably mounting a receptacle therein.

Another object of this invention is to provide means for rotating said receptacle.

Another object of this invention is to provide power transmission means operatively connecting said receptacle and said motor.

Another object of this invention is to provide an improved blade or baiile means for conducting the mixing operation.

A further object of this invention is to provide a device of the character described which is free of protrusions in the mixing chamber in order to facilitate complete removal of the specimen therein thereby enhancing the accuracy of quantitative analysis.

Other objects and features of novelty shall be specifically pointed out or will become readily apparent to those skilled in the art, in following the description of the preferred embodiment of the invention illustrated in. the accompanying 25 drawings, wherein:

Figure 1 is a plan view of the preferred embodiment of the instant invention;

a Figure 2 is an elevational side view with parts shown in section of the invention illustrated in Figure 1;

Figure 3 is a fragmentary plan view of the invention shown in Figure l with parts removed for clarity;

Figure 4 is a detail View in elevation showing the bafile or blade used in conjunction with the present invention;

Figure 5 is an elevational view of the blade carrying links forming part of the instant invention;

Figure 6 is an elevational side view of the receptacle forming part of the instant invention, and

Figure 7 is a fragmentary elevational view of the receptacle receiving means forming part of the present invention.

Referring now in detail to the accompanying drawings, illustrating the preferred embodiment of the instant invention, like reference characters are used throughout to indicate similar elements.

For a number of years there has been a definite need of a mixing device in which ground whole cottonseed, ground soy beans, peanuts and other oil cakes could be substantially perfectly mixed. Inasmuch as these ground samples are composed of finely divided particles of varying sizes and 1 Claim. (Cl. 259-88) densities it has been impossible to get adequate mixing by use of conventional stirring or mulling machines. It has been found that by the use of the preferred embodiment of the present invention, satisfactory results are produced. It is necessary that a machine designed for this purpose be completely and easily cleaned by a simple brushing technique since the entire sample must be saved to obtain valid results in quantitative analysis.

A housing I U composed of some suitable material such as iron, steel and the like, is provided with an aperture 12 at one end thereof. A source of power is provided, the preferred source being an electric motor 14 with a conventional circuit breaker l6 secured therein. A shaft l8 having a spur gear 20 thereon, extends through said aperture 12 within the housing [0.

Suitable gears 22, 24 and 26 are entrained to drive a sub-shaft 28 extending through the said housing Hi. A pin 36 is received transversely through said sub-shaft and is adapted to be received in a slot 32 provided at the bottom of a receptacle 34. It is obvious from an inspection of Figures 6' and 7 that the said receptacle 34 is received on the shaft 28 in removable relation therewith. The receptacle 34 is preferably of cylindrical configuration having the corners rounded smoothly. A protuberance 36 is provided on the housing I0 between the receptacle 34- and motor M. A stand 38 having an aperture 40 adjacent one end thereof, is adapted to be received in a suitable aperture in said protuberance 36.

A pin 42, or some equivalent fastening means, is

provided through the said aperture 40 and through the said protuberance 36 in order to hold the said stand in a predetermined fixed position.

A sleeve 44 is received on the said standard 38 and is limited in its downward travel by the abutment with a suitable friction collar 46. It is apparent that other types of collars may be used such as the conventional set screw positioning type. A tubular link 48 is secured to the said sleeve 44 in perpendicular relation thereto. A slot 50 is provided longitudinally of the said link 48 and is adapted to receive a baflle or blade 52 therein.

The said blade 52 comprises a substantially rectangular body .member havingan extension 54 thereon with cross members 56 in perpendicular relation therewith. The said cross members 56 cooperating with the extension 54 comprise a clasp to be removably secured in the said slot 50. A smooth convolution 58 generated along the longitudinal axis of said blade provides the first or uppermost baffle means. The said convolution 58 might be described as half-helical. In the said convolution is a cutout or notch 60 and received under the said notch is a second convolution 62 somewhat similar to the said portion 58. The said convolution 62 is substantially helical in contour and is more sharply bending than the said portion 58.

Operation The operation and principle of mixing involved in this machine is as follows: A sample of soy beans, ground cottonseed, peanuts and the like is placed in the receptacle and is given axial speed so that the said sample is driven to the side of the revolving receptacle by centrifugal force. The peripheral speed of this cup is sufficient to impart to the finely divided particles of said sam ple a velocity great enough to cause the said sample of solids to cease functioning as a collection of solids, and function as a fluid in flow. Now, in order to get a substantially perfect mixing action, it is necessary to redirect this stream of flowing solid particles to a number of streams and in such directions as are necessary to cause continuous co-mingling. This condition is accomplished by the design of the bafiie or blade, which has a bottom convolution bending upward to direct the flow toward the center of the receptacle and in an upward direction. The lower middle section of this blade is cut-away, allowing another of the central streams to proceed along the sameaxis in which it flowed before reaching the said blade. The upper part of the blade or baffie is so curved that the rate of curvature increases as it approaches the top of the mixing cup. This causes the sample at the upper part of the cup or receptacle to be directed back at a much greater angle than those particles at the lower edge of the upper curve. This single curve produces a fanlike series of particles, flowing back to the center of the cup and to the opposite side of the receptacle from the baffle or blade itself.

Since the said baiiie or blade 52 is rotatably journaled on the sleeve 44, it is free to move from the center of the receptacle 34 to the sides thereof. Since the moving particles are impinging against the curvature of this blade, the force 4 necessary to redirect the stream of flowing particles is suflicient to keep the blade against the side of the said receptacle at all times.

There has been described but a single preferred embodiment of the instant invention, however, it is apparent to those skilled in the art, that various changes including omissions and additions may be made herein without departing of the spirit embodied herewith.

Accordingly, limitation is desired only in accordance with the scope of the following claim.

Having thus described this invention what is claimed as new and novel is:

An apparatus for admixing materials including a rotating material supporting container, means disposed in said container for producing a first zone of flowing material towards the axis of rotation of the rotating material supporting container and at an angle to a plane normal to the axis of the rotating supporting container, said means including a baflie having a substantially helical convolution, means in said container for producing a second zone of flowing material concentric with the axis of rotation of the rotating supporting container, means comprising a sub stantially helical convolution of said baflie spaced from said first mentioned convolution and being of a dissimilar radius of curvature with respect to the first mentioned convolution for producing a third zone of flowing material toward the axis of rotation of the rotating supporting container and at an angle to a plane normal to the axis of the rotating supporting container, which angle is greater than the first mentioned angle.

- GRANVILLE C. HENRY.

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

UNITED STATES PATENTS Number Name Date 414,632 Grail Nov. 5, 1889 1,112,213 Hult et al Sept. 29, 1914 1,417,885 Bossert May 30, 1922 1,772,083 Hollenback Aug. 5, 1930 2,091,532 Strong et a1 Aug. 31, 1937 2,092,282 Love Sept. 7, 1937

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