Abstract: The linear-to-rotary actuator includes an elongated drive member constrained to linear movement, and a rotary member constrained to rotary movement. The elongated drive member has a coupling end and an engaging member that projects from the coupling end. The rotary member has a track defining an Archimedean spiral. The track is adapted to receive the engaging member. The engaging member is constrained to slide in the track such that linear movement of the elongated member effects rotation of the rotary member. The track may be a slot, a groove, or other guide. Alternatively, instead of a track defined directly in the rotary member, the actuator may include a linking member (such as a disk or rectangular bracket) attached to the rotary member, the linking member having a track defining an Archimedean spiral defined therein, the engaging member being slidable in the track to convert linear motion into rotary motion.

Abstract: The linear-to-rotary actuator includes an elongated drive member constrained to linear movement, and a rotary member constrained to rotary movement. The elongated drive member has a coupling end and an engaging member that projects from the coupling end. The rotary member has a track defining an Archimedean spiral. The track is adapted to receive the engaging member. The engaging member is constrained to slide in the track such that linear movement of the elongated member effects rotation of the rotary member. The track may be a slot, a groove, or other guide. Alternatively, instead of a track defined directly in the rotary member, the actuator may include a linking member (such as a disk or rectangular bracket) attached to the rotary member, the linking member having a track defining an Archimedean spiral defined therein, the engaging member being slidable in the track to convert linear motion into rotary motion.

Abstract: The radially reciprocating lock includes an elongate, hollow cylindrical housing having a locking mechanism disposed therein. The locking mechanism includes an axially extending lock shaft and at least one crank disk attached to the shaft. A recess is formed in at least one end of the lock shaft for insertion of a key or tool to rotate the lock shaft and the crank disk. At least one endcap is provided to securely cover an exposed end of the housing. The endcap includes a center hole for passage of the lock shaft end. At least one locking member is operatively connected to the crank disk to radially reciprocate between an extended, locked position and a retracted, unlocked position through respective slots on the housing. A crank linkage mechanism and a cam mechanism are provided to reciprocate the at least one locking member.