| 摘要 |
The roller (8) is traversed and rotated by a peg with a slot in one end for the sheathed cable (3) which is driven by the motor (15) adjustable in height on the centre section (2B) of a three-section handle (2A-2C).Cleansing liq. is piped (13) from a small tank (1) on the floor to a valve (11) supplying the nozzle (12) which is adjustable (10) on the upper section (2C). The valve is opened when required by a cord (4) tied to a hand lever (5) adjustable (6) on the lower section (2A), to spray the ceiling from a distance of 20 cm.
|
