DE6920054U - RUBBER. - Google Patents

Description

PATENT LAWYERS DR.-ING. BY KREISLER DR.-ING. SCHONWALD DR.-ING. TH. MEYER DR. FUES DlPL.-CHEM. ALEK VON KREISLER DIPL.-CHEM ₀ CAROLA KELLER DR.-ING. KLOPSCH COLOGNE 1, DEICHMANNHAUS

No, May 16, 1969

Applicant; Laminated Plastic Products Limited

Hope House, Priory Street '■ Vare, Kerffo rdshire / England

Title: Agitator

The fire deals with agitators and represents an improvement or modification of the agitator shown and described in the German utility model No. 1.971 * 046.

In industry, large containers are used, often made of steel enamelled with glass, and in which an agitator is installed is rotatably arranged. At the upper end of the container lids are attached, which have loading openings through which the RTnrwerk is introduced into an open container. The one from the agitator The coated diameter is therefore limited by the size of the feed opening. The German utility model 1.971.04b describes a dismountable agitator that can be used within of the container can be assembled so as to achieve a larger coated diameter. The agitator according to this German utility model is rotatable and is an extension with a plane running at right angles to the axis of rotation

rectangular cross-section, which is stepped outwards; Furthermore, an impeller is provided with a hat that with a central recess is provided, the cross section of which is larger than that of the extension, but this corresponding shape has, the recess with the steps of the port set opposite Shoulders: L-shaped wedges are also provided, which are between the port set and the recess the hub with one leg of the wedge resting on a step of the port set and supporting the shoulders of the hub.

The present innovation provides a different construction which comprises a shaft on which a cylinder body is coaxially mounted, the outside having semicircular grooves with axes parallel to the axis of the shaft, the grooves on the circumference of the cylinder body and open at one end and at the other The end are closed; Furthermore, an impeller is provided with a recess into which the cylinder body fits, this recess having semicircular grooves opposite the grooves in the Z _d linder body, which are open at the end that is at the closed end of the grooves in the cylinder body, and which are at the other end are closed; Finally, cylindrical wedges are provided which fit into the grooves of the recess and of the cylinder body.

Further objects, features and advantages of the invention emerge from the claims and from the following description one of the explanatory and not the delimitation of the concept of innovation serving exemplary embodiment, whereby the enclosed

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referring to the following drawings. In the drawings shows:

Pig. 1 shows a vertical section through part of an agitator according to the invention,

Pig. 2 looks down on FIGS. 1 and

Pig. 3 in an exploded view, the agitator in disassembled State.

In the illustrated embodiment, the disassembled Agitator has a core or shaft 1 which is in the vertical position in use. For simplification the illustration, it is assumed in the following description that the shaft is in this vertical position is located. The lower end of the shaft 1 is wedged in a cylinder body 2, the axis of which coincides with the shaft axis. The cylinder body 2 has two or more diametrically opposite outer, vertical grooves 3 with semicircular Cross-section, the center lines of which have a slightly smaller distance than the diameter of the cylinder body and parallel to the center line of the cylinder body, these grooves extending from the top of the cylinder body extending downward about seven eighths of the length thereof. These grooves are therefore on the top and on the circumference of the cylinder body open while they are closed at the bottom of the cylinder body.

692005422.10.70

-A-

The cylinder body 2 detachably carries an agitator head or an impeller 4. This impeller 4 has a central surface which can have any desired profile and carries impeller blades such as flat blades. The liabe 5 has a central recess 7 with a circular cross-section, the diameter of which is slightly larger than aer of the cylinder body 2, so that the hub can be moved freely in the vertical direction on the cylinder body. The recess 7 in the hub 5 has two or more diametrically opposite inner grooves 8 with a semicircular cross-section, the center line spacing being the same as that of the grooves on the cylinder body and these grooves extending upwards from the lower end of the hub over about seven eighths of the height thereof . These grooves are therefore open at the bottom of the hub while they are closed at the top of the hub. One can in these grooves \ hub made to coincide with the grooves 3 in the cylinder body.

Two cylindrical wedges 9 »both of the same diameter and

same length as the semicircular grooves in the cylinder body

per and in the hub, fit into the semicircular

• inserted into the grooves of the cylinder body. The hub will then

pushed over the cylindrical body so that their two grooves 8 to push fit on diejeni _t "i parts of the cylindrical wedges 9, oie from the cylinder body protrude. The wedges are held vertically of the cylinder body by the non-grooved eighth of the height and hold itself turn the hub perpendicular through the non-grooved part of its recess.

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I <I I I

The impeller can therefore be assembled and easily dismantled and without the aid of screws or other fastening means be replaced by another impeller with the same hub but with blades of a different shape or size.

The core or the shaft 1 is expediently made of steel, which is preferably provided with a jacket made of layered plastic is, while the impeller blades, the hub and the wedges can expediently be made of layered plastic

nen.

At will, the core or the shaft 1 can be made with a number of cylindrical bodies of various sizes and / or shapes provided, which are designed to - not necessarily simultaneously accommodate the hub of different wheels. This enables the properties of the agitator to be completely changed in a very simple manner.

Claims (6)

I · I I I · · · t • · I I · · ■ »111 till t ♦ 4 I III * · t f • · iii i •» til Il It claims for protection 1. Agitator with a shaft, characterized by a cylindrical body fastened coaxially on the shaft (1) (2), the outside semicircular grooves (3) with axes running parallel to the axis of the shaft, the Grooves (5) on the circumference of the cylinder body (2) and open at one end and closed at the other end, by an impeller (4) with a recess (7) into which the cylinder body fits, by means of semicircular grooves opposite the grooves in the cylinder body Grooves (8) in the recess (7) which are open at the end that is at the closed end of the grooves in the cylinder body and which are closed at the other end, and by cylindrical wedges (9) which are inserted into the grooves of the recess (7) of the cylinder body (2). 2. Agitator according to claim 1, characterized in that the recess (7) of the impeller (4) the Central bore of an impeller hub (5) is. 3. Agitator according to claim 1 or 2, u characterized in that the grooves (3) in the cylinder body (2) above open and closed at the bottom and accordingly the grooves (8) in the recess (7) are closed at the top and open at the bottom. 4. Agitator after one of the previous ones Claims, characterized by several, interchangeable wheels (4) with the same recess (7) or hub (5) and 692005422.io.7d * »It» »· III» · ti - 7 - differently designed impeller blades. 5. Agitator according to one of the preceding claims, characterized in that the center lines of the Grooves (3) in the cylinder body (2) have a smaller distance from one another than the diameter of the cylinder body (2). 6. Agitator according to one of the preceding claims, characterized in that the shaft (1) made of steel with a jacket made of layered plastic and the impeller (4) and the cylindrical wedges (9) consist of layered plastic.