a privileged claim on a vessel for some service rendered to it to facilitate its use in navigation, or an injury caused by it in navigable waters, to be carried into effect by legal process in the admiralty court ... Such a lien is a proprietary interest or right of property in the vessel itself, and not a cause of action or demand for personal judgment against the owner, seaduse alusel tekkiv pant laevale seadusega sätestatud nõuete tagamiseks