Plant watering spray has coaxial inner and outer control tubes which rotate about central shaft and are held in place by end cap gap between end of inner tube and cap varying in size when tubes are rotated

摘要

The plant watering spray has coaxial inner (60) and an outer (50) control tubes which can rotate about a central shaft (30) and are held in place by an end cap (31). When the tubes are rotated the gap between the end of the inner tube and the cap varies in size.