Show water curtain for fire fighters fighter an ingenious but simple device lay protecting firemen bremen from flames ana smoke when they are fighting a lire sit ait clohse quarters has been invented just behind the aperture in hi the ot of the fire hose there Is a small emall ring like opening when the th water at high pressure la in sent through taci hose some of 0 it in addition to the main stream that passes from the now no ale is to Is forced out at right angles to the nozzle through the ring like OPO opening the result Is I 1 that a circular stream of water Is formed in front of the maln who Is holding tho the hose nozzle and this keeps away flame beat and scle |