US1260840A - Concrete-mixer. - Google Patents

Description

H. n. WEGE. CONCRETE MIXER.

APPLICATION FILED AUG-I5, l9l6.

Patented Mar. 26, 1918.

2 SHEETS-SHEET I INVENTOR A TTOBNE V8 HENRY DWEGE /6 WITNESSES 257M H. D. WEGE.

CONCRETE MIXER.

APPLICATION FILED nus-l5. l9l6.

1 ,260,84;O. Patented Mar. 26,1918.

WITNESSES J INVENTOR, 3 Q

Q]. W- 6 %MA\ ATTORNEYS HENR n. ween, or 3. mm, WISCONSIN.

CONCRETE-MIXER.

- Specification of Letters Patent.

Patented Mar. 26, 1918.

Application filed August 15, 1916. Serial No. 115,033.

To all whom it may concern:

Be it known that I, HENRY D. West), a citizen of the United States, and a resident of Barre, in the county of La Crosse and State of Wisconsin, have invented a certain new and useful Improvement in Concrete- Mixers, of which the following is a specification.

My invention is an improvement in concrete mixers, and has for its object to provide a device of the character specified, wherein a rotatable casing is provided having at one end a discharge opening, and a mixing vane on the inner face of the said end, so arranged that when the caslng is rotated in one direction, the vane will prevent the material passing out of the discharge opening, while when the casing is turned in the other direction, the vane will cause the material to discharge from the discharge opening, and wherein the mixing is brought about solely by the rotation of the casing and the action of the said vane.

In the drawings:

Figure 1' is a front View of the improved mixer;

Figs. 2 and 4 are sections on the lines 22 and 44 respectively of Fig. 3, each view looking in the direction of the arrows adjacent o the lines;

Fig. 3 is a section on the line 33 of Fig. 2, looking in the direction of the arrows adjacent to the line.

The present embodiment of the invention comprises a casing 1 of semicircular cross section, the said casing bein cylindrical and having its axis inclined with respect to the planes of its ends, as shown. This casing is supported by wheels 2 mounted on axles 3 which are journaled in bearings 4 having upward extensions 5 to which are connected channel bars 6, the said bars being arranged with their channels inward. An arc-shaped guide member 7 is secured to the channel bars near the axle, the said guide being channel-shaped and the casing is supported by the guide. This guide is approximately semicircular, and at each end a cross head 8 is provided. An annular guide rib 9 is secured to the casing 1 at approximately the center thereof, the plane of the said rib being parallel with the planes of the ends of the casin and this rib supports a gear ring 10, t e said ring in the present instance beingintegral with the rib. Each of the cross heads 8 is a species of substantially casing open at its inner side, and a wheel 11 is journaled in each casing. These wheels 11 engage the opposite faces of the guide rib 9, and other wheels 12 are journaled in extensions 13 at the under side of the casing, the said wheels also engaging opposite sides of the guide rib. The Wheels 11 and 12 prevent longitudinal movement of the casing with respect to the guide 7 and a plurality of pairs of wheels 14 is provided for supporting the casing for rotation.

Each pair of wheels 14 is secured to a shaft 15 which is journaled in an extension 16 of the guide, and the members of each pair engage the guide rib 9 on opposite sides of the gear ring 10. The members of each pair of wheels are spaced to receive the teeth of the gear ring 10 between the same, and the pairs are arranged on opposite sides of the center of the guide and on axes parallel with the axis of the guide rib and gear ring. The gear ring is engaged by a pinion 17 secured to a driving shaft 18, the said shaft being journaled in bearings in the extension 19. This shaft 18 is driven in any suitable manner, and it will be obvious that when the shaft is rotated the casing will be rotated, riding on the wheels 14 and guided by the wheels 11 and 12.

The material is fed into the casing at the high end thereof, by means of a chute 20.

and the casing whose lower end is closed by a head 21 integral with the casing, has a discharge opening 22. A funnel-shaped nipple 23 is secured to the head of the casing at the discharge opening and around the same, and the mixing and discharge vane 24 is secured to the said head on the inner face thereof, the said vane extending from the periphery of the casing tothe discharge opening. This vane as shown more particularly in Fig. 2, is arched radially of the casing, and at its upper end the vane has a curved conical or tapering extension 25 whose large end encircles the opening and is secured to the head of the casing about the said opening. The vane has a continuous curve from one end to the other, the convex surface of the extension being continuous with the convex surface of the body of the vane.

In operation, material is fed into the easing through the chute 20. The casing is rotated in the direction of the convex face of the vane. As the casing rotates the material will engage the convex f ce of the vane,

'posite direction it will empty,

' drum or casing off the said convex face, and falling into the lowest part of the casing as the vane moves upwardly. Once during each revolution of the casmg the vane will pass throughthe material in the casing, thoroughly mixing the same, and without any of the said material escaping from the discharge opening because of the fact that thezjextension of the vane protects and shields the .opening.

When the material has been thoroughly mixed thecasing is reversed, moving now in such manner that the concave face of the vane first meets the material. The material will now be carried up by the vane and discharged through the discharge 0 ening. Each time the vane moves through t e material a portion thereof will be lifted and as the outer or peripheral end of the vane attains a point higher than the inner end, the material will be discharged into the extension 25 and out through the discharge opening into a suitable receptacle. The vane is thus not only a mixing vane but is as well a discharge vane. The arrangement is such that when the mixing drum or casing moves in one direction, the material is mixed and held in the mixer, whilewhen the said drum or casing is turned in the opthe contents being discharged through the discharge opening. The entire interior of the drum is free and unobstructed so that none of the material will adhere to the inside of the drum. The inclined arrangement of the drum insures that all of the material will move toward the front or lower end of the and the funnel" shaped dise convex radial vane insures slipping charger with t perfect mixing of the ingredients, prevents r adherence of the material to the drum, and discharges the contents of the drum cleanly and ra idly. This drum is of a capacity to hold w atever quantity of material is found most expedient to handle, and in use it will never be necessary to stop for the pur ose of cleanin out the drum. g

It will e noted that the vane is secured to the lowerend of the drum and extends approximately radially, from the said openmg to near the periphery of the drum adjacent the lower end, and the vane has a cone shaped extension, continuous with the vane, and partially encircling the discharge opening, the vane being curved longitudinally to deflect the material when the drum is rotated in one direction and to carry the material to the discharge opening when the drum is rotated in the opposite direction.

I claim:-

A concrete mixer comprising a drum, means for mounting the drum to rotate in an inclined position, said drum having in its lower ,end a discharge opening, and a vane secured to the lower end of said drum and extending nearly radially from the said opening to near the periphery of the drum adjacent said lower end, said vane having a cone shaped extension partially encircling the discharge opening, the vane being curved longitudinally to deflect the material when the drum is rotated in one direction and t 'carry the material to the discharge openmg when the drum is rotated in the opposite dlrection, the vane and the extension being continuous.

. HENRY D. WEGE.

Witnesses:

WM. S. BuRRoUoHs, MARIE PEIKERT.

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