| 摘要 |
Brush intended in particular for cleaning the insides of tubular flues in a hearth boiler, characterised in that it includes means for fixing a scraping blade 1 to a manoeuvring rod 4, and in that this blade 1 is a flat-spring blade curved over into a loop in the general direction of the axis of the said rod 4, so that the scraping effect is obtained by its diametrically opposed edges 8 when this blade 1 is pivoted, once inserted into the flue 2 to be cleaned, along the axis of the manoeuvring rod 4. <IMAGE>
|
