Task: Explanation
Input (English): In the history of cryptography, Typex (alternatively, Type X or TypeX) machines were British cipher machines used from 1937. It was an adaptation of the commercial German Enigma with a number of enhancements that greatly increased its security. The cipher machine (and its many revisions) was used until the mid-1950s when other more modern military encryption systems came into use. Question: Who invented the cipher machine of which Typex was an adaptation ?  Answer: Arthur Scherbius
Output (English):  It was an adaptation of the commercial German Enigma with a number of enhancements that greatly increased its security.