Abstract: A drive system suitable for a bicycle and capable of providing various drive ratios comprising first and second pairs of conical members, each pair including primary and secondary conical members, both of which are rotatable about a first or second transverse axis. The conical members each comprise a series of evenly spaced sectors with the sectors of the primary conical member being slidable between the sectors of the secondary conical member in each pair. There is a first shaft for rotating the first pair of conical members. The primary conical member of the first pair is slidably mounted on the first shaft. The secondary conical member of the first pair is fixedly mounted on the first shaft . The conical members of the second pair are mounted on a second shaft. The secondary conical member of the second pair is mounted for axial sliding movement relative to the primary conical member. A continuous V-shaped drive belt extends about both pairs of conical members.

Abstract: An exchangeable anchor assembly comprising a free end adapted to be connected to a line, with two parallel crown plates disposed at opposite ends of the stem and sandwiching the stem therebetween. Carried between the crown plates are a pair of stop-limit elements to limit the extent of angular rotation of the stem between the stop-limit elements relative to the crown plates. A cross bar is provided for supporting the crown plates in a fixed position thereto and for carrying two or more combined fluke units having a sleeve connection. A stabilizer unit is provided which includes a pair of angularly displaced wing elements connected with each crown plate. Lock straps are provided to hold the entire unit on the cross bar and to permit relative movement of the stem about the cross bar with such movement limited by the stop-limit elements connected between the crown plates.