Show PROVED AMONG POSSIBILITIES IES WASHINGTON June Jimmie 30 For 30 For th the first time timo in America a a n heavier than air type of flying machine which depends on aerial screws serca's for it its lifting nJ power has successfully lifted itself itsel with an nn operator A machine machin built bui by J. J Newton Williams of Derby Conn Vonn and mi Berliner of this cit city lifted ted Mr Williams from the ground round on three ee occasions The Williams with the tho op ep- ep orator crater wei weighs hl about pounds and ha haa has hasa a lifting surface of only eighty square squar re feet This surface consists of two pairs pair pais of propellers revolving horizontally i in il opposite directions at tho the end of a vertical vcr ver- shaft shaf |