Abstract: The assembly is used with a support having a flat surface and formed with a bore extending generally parallel to but beneath the surface and with a passage extending from the bore to the surface, with a control element in the bore and pivotal therein about an axis generally parallel to the surface, and with a control rod projecting from the element through the passage beyond the surface. This rod is connected to the element and pivots therewith about the axis through an arc on pivoting of the element in the bore about the axis. The assembly comprises an elastomeric annular cuff having an inner periphery tightly engaging and secured against movement on the rod and an outer periphery engaging and slidable on the surface all around the passage and dimensioned to engage the surface all around the passage in any position of the rod. This cuff is prestressed generally parallel to the rod between its peripheries to press at the outer periphery against the surface.

Abstract: A generally triangular bag has a front edge provided with a separable fastener so that it can be enclosed around a compacted jib, around the jib hanks securing the luff to the jibstay, and around the lower portion of the jibstay. This bag is formed of a pair of triangular side panels having rear edges joined together at a backwardly convex seam, bottom edges joined by an eliptical bottom panel, and front edges each carrying a respective half of the separable fastener. At the upper and lower ends of the front edge the bag has holes permitting the jibstay to pass through the bag parallel to this front edge.