Abstract: A safety clasp for necklaces, bracelets and the like is provided with a leaf spring member having its ends canted outwardly so as to enter and engage receiving apertures formed in an outer member. Retaining rings are provided at each end of the separable clasp with the outer member having an outer tubular sleeve with an open and a closed end and with apertures formed intermediate its length. An inner member is slidable and rotatable within the outer member and carries the leaf spring by a spine member with said spring secured at its midlength at the inner end of the spine. Receiving means for the leaf spring is provided in and along the spine and a bias such as a coil spring is secured at the closed end and internal of the outer member to urge the inner member outwardly. A quarter-turn of this inner member is made to bring the ends of the leaf spring from in way of the apertures formed in the outer member.

Abstract: There is provided a safety sleeve and retainer of thin tubing which is of a size to provide a snug fit with the outer diameter of a pivot pin post as used with a watch band or strap. The sleeve is formed with at least a portion made with a tubular configuration and with about one-half made with a split. This split portion is expanded outwardly to form extending leaf portions. The safety sleeve is of rigid plastic or metal with a thin wall. The safety sleeve is adapted to retain the pivot pin post while the expanded leaf portions are a snugly slidable interference fit within a loop end of a strap or band. The safety sleeve is shown in two modes of construction. A preferred sleeve is made to enclose a previously provided spring pivot pin post. In the other embodiment the safety sleeve is secured to the outer portion of the pivot pin post and is used as an assembly.