Show invention of new lifeboat two inventors who live in shirlin St stirling irlin g scotland have indented a lifeboat which Is intended to become automatically mati cally inflated when it is immersed in water A spring Is employed which is kept in a state ot of tension or compression by means ot of a strip or roll of paper the tensile strength of 0 which as long as it is dry is dent clent to main ain aln tho the spring in a state of compression but which when it becomes wet by immersion in water immediately loses its strength to such an extent that it Is ruptured by the energy stored in the spring the release of the spring causes the produce tion of a volume of gas from matea rials sufficient in quantity to inflate the boat |