Lock having longitudinal tumblers

A lock assembly for controlling a bolt comprising a lock and a key, said lock comprising a plurality of elongate generally rectangular spaced parallel plates slideably mounted for movement inwardly in a longitudinal direction, said plates including a longitudinal end surface positioned to be engaged for inward movement with insertion of said key in said lock and a side surface portion disposed parallel to said longitudinal direction, said side surface portions of said plates being disposed in coplanar alignment, notches formed in said side surfaces of said plates at one of several predetermined positions therealong, the notches of said plates being adapted to be shifted into alignment responsive to insertion of said key in said lack a feeler member biased against said side surfaces, said feeler member being adapted to enter into said notches when the same are aligned and to be coupled with said plates in said entered position, said feeler member being shiftably mounted in said longitudinal direction, bolt control means coupled to said feeler member and said bolt for shfiting said bolt inwardly to an opening position in said longitudinal direction responsive to movement of said feeler member inwardly in said longitudinal direction, and means for returning said bolt control means, said bolt, said plates, and said feeler member to the locked position thereof responsive to removal of said key.