Machine for cleaning vertical or inclined surfaces

Details Machine for cleaning vertical or inclined surfaces Machine for cleaning vertical or inclined surfaces

A - Human Necessities

47

L

15/74

A47L 11/38 (2006.01) A47L 11/292 (2006.01) B08B 1/00 (2006.01)

Patent

CA 1155613

ABSTRACT OF THE DISCLOSURE A machine for cleaning e.g. the reactor cavity walls in a nuclear power plant by means of at least one rotatable roller brush. For cleaning machines suspended by a wire it is difficult to achieve a sufficient bearing pressure against the wall to be cleaned. Especially in deep cavities the bearing pressure decreas- es the farther the cleaning machine reaches into the cavity. In accordance with the invention a roller brush is used comprising a plurality of soft grinding sheaves which are axially compressible and decompressible for changing the density of the roller brush and counterweight means are provided with means for increasing or decreasing its weight and thus changing the weight distribution of the machine for changing the bearing pressure of the machine against the wall.

361091

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