Box Elder News Journal | 1913-01-02 | Page 6 | Protection during Fogs

protection during fogs two brothers named hodgkinson have invented an all apparatus which acting as ears for a ship will afford a protection now lacking in time 0 of fog og tests in the mersey at liverpool appear to substantiate the tha claims tor for this invention that it 11 will definitely determine the direction of sounds the invention consists ot of a drum nine feet long lone by five feet in diameter set up aloft so as to miss sounds hounds on deck but to receive other found bound waves on a receiver divided into units for each direction an electrical appliance connected with a lamp lami shows by a small light the direction whence the sound may be coming