ROLLER-REEFING BOOM APPARATUS

摘要

A roller-reefing boom apparatus includes a mast having a track which receives a bead along an edge of a sail, and a boom that is supported by the mast. The boom includes a member rotatably supported at one end adjacent the mast. This member is adapted for attachment of the bottom of the sail thereto. The member increases in diameter from its said one end to its other end.