Dispensing – Snap-acting outlet element – Axially movable tube – sleeve – or apertured cap
Patent
1974-10-17
1976-03-09
Feldman, Peter
Dispensing
Snap-acting outlet element
Axially movable tube, sleeve, or apertured cap
222410, B01F 720
Patent
active
039427714
ABSTRACT:
An arrangement in a silo for bulk material, comprising a rotating agitator centrally arranged in the silo. The agitator consists of a rotatable disc equipped with at least one rigid paddle which is mounted on the disc for pivoting about an axis which is offset from the central axis of the disc. The swinging of the paddle about the offset pivot axis is effected by actuating means arranged below the disc. When the disc rotates the paddle is resiliently advanced through the material in the silo in a more or less radially extending position depending on the relation between the force imparted to the paddle by the actuating means and the reactive pressure from the contents of the silo. The paddle is pivotally mounted as a lever having two arms which are both exposed to the material in the silo. The paddle generally takes the form of an arc having a radius of curvature substantially corresponding to the distance of the axis of rotation of the disc from the pivot of the paddle, and is provided with studs or hooks along the leading edge as veiwed in the direction of advancement for improved tearing off of the bulk material in the silo.
The actuating means consists of a hydraulic cylinder which is in power transmitting connection with a first rotatable shaft on which the paddle is mounted. A second shaft which rotates the disc has a bore, which either in itself serves as or contains a conduit for pressurized fluid for communication between a stationary source of pressurized fluid and said hydraulic cylinder.
REFERENCES:
patent: 1155712 (1915-10-01), Eirich
patent: 1940138 (1933-12-01), McAdam
patent: 3197084 (1965-07-01), Lely et al.
patent: 3863815 (1975-02-01), Chaffee et al.
Feldman Peter
Linton Ulle C.
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