Patent Application, Filed 2 Apr 90,
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
The disclosure describes a sheave that has the advantage of being able to be quickly coupled to a cable, and quickly decoupled from the cable. A further advantage is that the shaft of the pulley on which the cable rides is journaled at each end in side members that interlock when the sheave is in its closed position to support the shaft both from above the pulley, and from below. Other advantages include that the interlock is an arcuate T-shaped extension in the rotatable side member and a corresponding arcuate T-slot groove with which it engages in the stationary side member. The rotatable side member is affixed to the shaft of the pulley and is operable to rotate about the shaft from its closed and interlocked position to its open and disengaged position whereat the pulley is exposed such that the cable, cord or the like may be coupled or decoupled to the pulley. In the open position the side members only are connected by way of the pulleys shaft, whereas in the closed and load bearing position the side members additionally are supported to one another by the T-slot interlock that is both above and below the pulley. A slip ring lock is included to retain the side members in their interlocked position. Patent applications.
- Machinery and Tools