PORTABLE LIFT TO SAVE FIRE-TRAPPED VICTIMS (Dec, 1930)
PORTABLE LIFT TO SAVE FIRE-TRAPPED VICTIMS
Ladders as means of escape from a burning building may be replaced by a portable elevator invented by M.E. Hayman, a member of the Portland, Ore., fire department. In case of a fire, the elevator is rushed to the scene and by hand or motor power it is raised in front of the desired window. A means of escape is thus provided free of the trembling uncertainty with which a novice trusts himself to a swaying and vibrating ladder.
Firemen can use it, also, to carry them to a point of vantage from which to attack the flames. Obviously, the apparatus could be used by painters or carpenters in place of scaffolding. A large size portable elevator can be raised, according to its inventor, to a height of 200 feet.
The elevator collapses by means of side-pieces, with groove and tongue that fit, which slide into each other and are operated by cables that wind or unwind around a series of drums permanently located in the base. The smaller sizes can be operated by a hand crank on the base, but those designed for use by the fire department will be mounted on a truck and raised and lowered by a motor geared to the crank. Simplicity of design and freedom from unnecessary parts keep the weight of the elevator so low that, even with the largest size, its transportation from place to place is easily accomplished.