A wheeled carrier for transporting elongate articles having a wheeled axle, a dynamic clamp for the article including spring biasing to return the clamp to a relaxed position when the article is removed therefrom, and a suspension extending between the clamp and the axle to absorb shocks transmitted...http://www.google.sh/patents/US4695067?utm_source=gb-gplus-sharePatent US4695067 - Wheeled article carrier
