Aviation aux Etats-Unis : amélioration technologique et sécurité, 1930-1939. - 24 photos - Photo n° 228642
Photo n°
228642
:
WATCH YOUR CREDIT LINE: FROM: WIDE WORLD PHOTOS: WASHINGTON BUREAU. - DC-681854-AIR MAIL PICK-UP DEVICE DEMONSTRATED. WASH., D.C.---The Adams air mail pick-up and delivery device by which airplanes are enabled in full flight to collect and deliver loads from aloft while in full flight, through automatic traps, in a single simultaneous operation, was demonstrated before officials of the Department of Commerce and the Post Office Department at Hoover Field, Wash., recently. Dr. Lytle S. Adams of Seattle, Wash., the inventor, is shown here explaining the operation of the trap which catches the mail to be delivered, to the various officials who witnessed the demonstration. - L to R, Dr. Adams, Clarence M. Young, Assistant Secretary of Commerce, for Aeronautics and Mr. Warren Irving Glover, Assistant Post-Master General. 3/6/30.[Actualit] [Wide World Photos]
