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Show AIR USED TC RING UP FARE8. Aviators are not the only persons who can take a fall out of the air. Mr. McAdoo of Hudson turineJ fame, is going them one better. Ht is making the air work for him. A young inventor gave him the idea and he is following it tip by having a compressed air device which registers regis-ters the number of passengers using the "tubes" installed in the Hoboken terminal. In the contrivance which Mr. McAdoo Mc-Adoo is using, a constant flow of compressed air is directed toward a disk equipped with an electric registering reg-istering apparatus. A person passing pass-ing through the current , of air interrupts inter-rupts the pressure against the disk and this "rings up" the fare. The device promises to prove practical . |