US1009304A - Mixing-machine. - Google Patents

Description

J. G. HARDING.

MIXING MACHINE.

AP1LIOATION FILED APBHIQ, 1911v 1,009,304, Patented N0v.21, 1911.

COLUMBIA PLANOGRAPH 60.,WASMINOTON, D. c.

UNITED STATES PATENT OFFICE.

JAMES G. HARDING, OF IOWA CITY, IOWA.

MIXING-MACHINE.

To all whom 'it may concern:

Be it known that I, JAMEs G. HARDING, citizen of the United States, residing at Iowa. City, in the county of Johnson and State of Iowa, have invented certain new and useful Improvements in Mixing-Machines, of which the following is a specification.

It is the object of the present invention to provide an improved machine for mixing plaster, mortar, etc., and for the slaking of lime.

The primary aim of the invention is to provide a novel agitating mechanism for such a mixing machine, the same being so constructed as to thoroughly mix the material and prevent accumulation of the material on the walls of the body of the machine.

Another aim of the invention is to so construct the agitating mechanism that it may be readily removed from the body of the machine and cleaned.

A further aim of the invention is to provide in agitating mechanism of this type, a novel arrangement of fixed agitator blades and movable blades, the latter being carried by a scraper blade forv the bottom of the body of the mixer, and the said scraper blade having at its outer end an upstanding scraper-blade arranged to remove the plastic material from the sides of the body.

Another feature of the invention resides in the provision .of a discharge opening in the bottom of the body which may be opened to permit of the rapid discharge of the contents of the body into a trough, or the like, and a discharge opening in the side of the body through which the contents of the body may be discharged into a bucket.

For a full understanding of the invention reference is to be had to the following description and accompanying drawing, in which Figure 1 is a vertical sectional view through the mixer embodying the present invent-ion. Fig. 2 is a horizontal section on the line 2-2 of Fig. 1.

Corresponding and like parts are referred to in the following description and indicated in all the views of the accompanying drawing by the same reference characters.

In the drawing the body of the machine is indicated by the numeral 1 and is preferably cylindrical and is closed at its lower end by a bottom 2. The bottom 2 is provided, centrally, with a bearing 3 for the lower end Specification of Letters Patent.

Application filed April 19, 1911.

Patented Nov. 21,1911. Serial No. 622,088.

of a shaft 4 which, near its upper end is j ournaled in a bearing 5 having radially extending arms 6. At theirouter ends, these arms 6 are provided with clamps 7 which cooperate with the upper edge of the wall of the body to hold the bearing 5 in proper position. A bevel-gear 8 is fixed upon the shaft 4 near the upper end thereof and mesh ing with this gear is a bevel-pinion 9 carried by a counter-shaft 10 on one of the arms 6. The shaft 10 may be operated by a belt and pulley, as shown in the drawing, or may be driven by hand, depending upon the size of the machine.

Spaced pairs of studs 11 project from the upper edge of one of the arms 6, and this arm supports the fixed blades of the agitating mechanism, each of these blades being in the form of a bar 12 bent at its upper end to a hook form as at 13 and engaged over the said arm 6 and confined between a pair of the studs 11, these studs preventing sliding movement of the blades upon the said arm.

The blades are in this manner held in vertical position and spaced parallel with respect to each other. A scraper blade 14 is secured at its inner end to the shaft 4 at the lower end thereof and this blade is inclined at an angle of about 45 and has its lower edge resting upon the bottom 2 of the body of the machine. A scraper-blade 15 projects up wardly from the blade 14 at the outer end thereof and has one edge resting against the side wall of the body from the bottom thereof to a point near the top. Stirrer blades 16 are secured at their lower ends to the rear side of the scraper-blade 14 and project upwardly in spaced parallel relation and are arranged to pass between the downwardly projecting blades 12, when the said shaft is rotated. Upon rotation of the shaft plastic material within the body will be agitated by the passage of the blades 16 therethrough and the cooperation of these blades with the blades 12, and the scraper-blades 14 and 15 will act effectually to prevent the material from accumulating upon the bottom and sides of the body. It will be observed that the plates 12 terminate at their lower ends immediately above the plane of the scraperblade 14 so that as the material scraped from the bottom of the body flows over the upper edge of the said plate 14, it will be agitated by the said lower ends of the blades 12.

The bottom 2 of the body is formed with a discharge opening 17, the opposite edges of journaled in bearings which converge toward the center of the said bottom and terminate at the bearing 3. These edges are formed with flanges 18 slidably receiving the edge-portions of a closure plate 19 which may be slid into place to close the said opening while material is being mixed, and may be removed to allow the mixed material to flow from the body. When the material is to be discharged from the body through the opening 17 the shaft 4 may be rotated to scrape all of the material from the sides of the body and from the bottom thereof and cause it to flow through said opening. In addition to the opening 17, there is provided a discharge spout 20 in the side of the body immediately above the bottom and this spout may be opened when it is desired to draw off a small quantity of the material.

Having thus described the invention what is claimed as new is 1. In a mixing machine, a body, a shaft journaled in the body, blades depending into the body, a scraper-blade projecting from the shaft, a scraper-blade projecting upwardly from the first mentioned scraperblade, the first and last mentioned scraper blades being arranged to cooperate with the bottom and the wall of the receptacle, respectively, and stirrer blades projecting upwardly from the first mentioned scraperblade and arranged to cooperate with the first mentioned blades when the shaft is rotated.

2. In a mixing machine, a body, a shaft j ournaled in the body, blades depending into the body, a scraper-blade projecting from the shaft and inclined with respect to the bottom of the body and cooperating therewith, and stirrer blades projecting upwardly from the scraper-blade and arranged to cooperate with the first mentioned blades when the shaft is rotated, the said first mentioned blades terminating at their lower ends immediately above the plane of the scraper blade.

3. I11 a mixing machine, a body, a support secured upon the body, a bearing in the support, a shaft j ournaled in the bearing, fixed blades depending from the support into the body, a scraper-blade projecting from the shaft at its lower end and cooperating with the bottom of the body, and stirrer blades projecting upwardly from the scraper-blade and arranged to cooperate with the first mentioned blades when the shaft is rotated, the said first mentioned blades terminating at their lower ends immediately above the plane of the scraper blade.

4. In a mixing machine, a body, a support upon the body including an arm, spaced studs projecting from the arm, a blade comprising a bar having its upper end bent over and detachably engaged with the arm between the studs, a shaft journaled in the support, a member projecting from the shaft at the lower end thereof, and a stirrer blade projecting upwardly from the member and arranged to cooperate with the first mentioned blade when the shaft is rotated.

5. In a mixing machine, a body, a support mounted upon the body and including an arm, spaced pairs of studs projecting from the arm, blades comprising each a bar having a hooked upper end engaging over the arm and between the studs of one of the pairs, a shaft journaled in the support, a member projecting laterally from the shaft at the lower end thereof, and stirrer blades project-ing upwardly from the said member and arranged to cooperate with the first mentioned blades when the shaft is rotated.

In testimony whereof, I affix my signature in presence of two witnesses.

JAMES G. HARDING. [1"... s.]

Witnesses:

J. D. MILLER, LEE D. KOSER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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