| 摘要 |
<p>The static, sector-type water sprinkler produces a variable-sector water-distribution pattern and includes an outlet opening (6) having an effective length around the circumference of its housing (2) which may be manually varied for preselecting the sector angle of the water distribution around the sprinkler. The outlet opening (6) is defined by a slot of fixed length extending around the circumference of the housing (2), and its effective length is varied by a blocking member (8) which is manually movable with respect to the slot to preselect the portion thereof to be unblocked, and thereby the sector angle of the water to be distributed around the sprinkler. <IMAGE></p> |
