Pneumatic load transportation system

A system comprising receiving and dispatching stations interconnected by a pipeline having a guide fixed to the inner side wall thereof, and by containers moving along this pipeline, each container having a leading seal mounted at the forward end side thereof in the direction of movement of the containers, a trailing seal mounted at the rear end side thereof in the direction of movement of the containers, the leading seal closing the lower half of the space between the container and the pipeline and the trailing seal closing the upper half of this space, and stiff longitudinally extending lateral seals supported by said guides in the pipelines and serving as bearing supports for sliding of the container.