Abstract: An uninterrupted cable directly carries a plurality of dead bolts which are simultaneously moved by the cable toward and away from active locking positions. Movement of the cable on cable support and guiding elements is under control of a handle or power actuator and the system may include a cable slack takeup device, a force multiplier, or a device to increase the length of travel of bolts attached to the cable.

Abstract: A split resilient ring has a pair of converging implement socketing sleeves anchored thereto and adapted to receive various implements whose work-engaging terminals may extend substantially outwardly of one or both corresponding ends of the socketing sleeves. The work-engaging implement terminals can be biased apart or together by the holder for a variety of useful operations. In lieu of the split resilient ring, a wedge fulcrum member may engage converging or diverging implements biased by elastic elements.