Mixer, preferably for the mixing of concrete

Details Mixer, preferably for the mixing of concrete Mixer, preferably for the mixing of concrete

1978-02-17

1979-08-21

Hornsby, Harvey C.

Agitating

Mortar mixer type

Movable stirrer

285235, 366 67, 366169, 366309, B01F 718, B28C 516

Patent

active

041651855

ABSTRACT:
A mixer for mxing concrete and comprising an annular mixing tub. A rotor is situated at the center of the mixing tub above the same. The rotor is rotatable by means of driving means and carrying agitating means including a number of agitators. They extend down in the mixing space of the mixing tub and are provided with means for feeding of liquid to the mixture. The rotor has the shape of a preferably circular case with its outer border extending substantially to the inner border of the annular mixing tub and including an inner space. The periphery of the case carries a number of tubular arms each extending substantially in a radial direction and carrying said agitators with said inner space in the center of the case in connection with conduit means for the supply of liquid and by means of said respective tubular arms to the liquid feeding means of the agitators.
The rotor includes between the arms and the agitators a pivoting means comprising a resilient rubber element, normally holding the agitators in a normal working position, but allows the agitators to pivot when encountering high resistance.

REFERENCES:
patent: 1791880 (1931-02-01), Tuck
patent: 1811719 (1931-06-01), Johnson
patent: 2717147 (1955-09-01), Fejmert et al.
patent: 2784989 (1957-03-01), Krupp
patent: 3020029 (1932-02-01), Fejmert
patent: 3168296 (1965-02-01), Cowley
patent: 3456926 (1969-07-01), Hummelshoj

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