Abstract: Methods and devices for loading, deploying, and receiving concertina-wire barriers along paths with varying travel or paths located at a distance to the access track of a transport vehicle. The first method includes loading a concertina-wire coil arrangement directly into carry tines and adjusting the tine tilt during deployment to reflect the changing gradient. An anchored portion of the wire stretches each coil longitudinally into its operative configuration and position as the transport vehicle advances. A second method involves a generally analogous process in order to deploy the barrier at distance from the access route. Retrieval for both methods is accomplished by inserting the carry tines in the space circumscribed by the deployed coils so that as the transport vehicle advances the coil arrangement is removed from its deployment location and pressed together onto the tines thereby being disposed for the next deployment.

Abstract: Methods and devices for loading, deploying, and receiving concertina-wire barriers along paths with varying travel or paths located at a distance to the access track of a transport vehicle. The first method includes loading a concertina-wire coil arrangement directly into carry tines and adjusting the tine tilt during deployment to reflect the changing gradient. An anchored portion of the wire stretches each coil longitudinally into its operative configuration and position as the transport vehicle advances. A second method involves a generally analogous process in order to deploy the barrier at distance from the access route. Retrieval for both methods is accomplished by inserting the carry tines in the space circumscribed by the deployed coils so that as the transport vehicle advances the coil arrangement is removed from its deployment location and pressed together onto the tines thereby being disposed for the next deployment.

Abstract: A barrier including a number of coils, and an inter-coil connector connecting two of the coils. Each of the coils is axially extensible, the coils are in substantially mutually parallel alignment, and each of the coils is in substantial direct contact with another one of the coils.

Abstract: A barrier including a number of coils, and an inter-coil connector connecting two of the coils. Each of the coils is axially extensible, the coils are in substantially mutually parallel alignment, and each of the coils is in substantial direct contact with another one of the coils.