DIVING HELMETS WORN AS SWIMMERS LEARN STROKES (Sep, 1934)
DIVING HELMETS WORN AS SWIMMERS LEARN STROKES
Diving helmets are worn by pupils taking swimming lessons from a San Francisco, Calif., instructor who employs a radical new method of instruction. Wearing these helmets, the beginners frequently remain under water for long periods during which they study the swimming movements of the instructor and later attempt to imitate them. The helmets are made from thin metal containers and cost little. The bottom is removed and the sides hollowed out to fit over the shoulders. The helmet is held in place by straps that pass under the arms of the wearer. Good vision is insured by a large rectangular window in the front of the helmet and air is supplied by a hose that leads to an air-pump at the surface.