| 摘要 |
A suction type inlet head, adapted for coupling to a fire hose or the like, is lowered into a tank, such as a portable tank known as a "dump-and-go" tank used in fighting fires in rural areas. The suction or inlet head is heavy enough to gravitate to and remain in stable position upon the bottom of the tank, and to this end has a flat weighted base plate which lies directly upon the bottom of the tank. The base plate supports, in a position slightly elevated above the tank bottom, an inlet nozzle retaining plate, having a wide transverse slot for receiving a transversely extending suction cylinder eccentrically, pivotally mounted upon the base. The suction cylinder merges into a hollow connecting portion on which there is provided a hose coupling for connecting the fire hose in communication with the cylinder. The hose coupling can thus be pivotally swung to selected positions of angularity in respect to the tank bottom, to correspondingly adjust the hose position in respect to the direction in which the hose extends from the tank bottom. Thumb screws extending through slots in the retainer plate and threaded into openings of the base may be turned home in selected positions to which the retaining plate is slidably adjusted, thus to cause the retaining plate to lock the suction cylinder in selected positions of rotatable adjustment.
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