Vault cartridge mechanical, data and power coupling system

Abstract From the Canadian patent

An electromechanical vault cartridge receptacle has an opening for inserting a vault cartridge the cartridge, passing between a pair of laterally biased rollers which continuously engage asymmetrically contoured sided surfaces of the cartridge. A front surface edge of the cartridge bears upon and causes the backwards motion of a movable frame, the motion of which causes top and bottom surfaces of the cartridge to be securely engaged between an opposed pair of horizontally planar cartridge bearing members. The bearing members comprise conductive plate means which are brought into registration with corresponding plate means beneath top and bottom surfaces of the cartridge for defining signal …