Pneumatic tube conveyor operated by linear motor for sending messages over remote ranges, has rotary current magnets let into tube assembly's walls and capsule moving in tube assembly opposed to magnetic field

摘要

Rotary current magnets (2) are let into a tube assembly's walls. A capsule (3) moves in the tube assembly (1) opposed to a magnetic field of travelling waves created in the rotary current magnets. Electrically conductive hollow cylinders (4) lock onto ball joints (5) at both ends of the capsule. Together with the hollow cylinders the rotary current magnets form an asynchronous linear motor. The message sent in a cylinder is sealed. Each capsule has an address code (7).