| 摘要 |
An improved apparatus for treating a fire in a multi-floored building where the fire is located on an upper floor vertically displaced from a lower floor from which the fire is treated, and where the upper and lower floors each have a selectively openable environmental access along an external wall of the multi-floored building. The improved apparatus includes a tubular structure having an inlet, an intermediate portion, and an outlet and a bracing system. The bracing system has a frame, a first pivot point, and a second pivot point. The frame provides support against a sturdy surface. The tubular structure is supported on the first pivot point and rotates thereon to elevate or hoist the outlet towards the upper floor environmental access. The tubular structure is further supported on a second pivot point and further rotates thereon to elevate the outlet.
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