Joy Ripper References Joy Ripper mining machinery Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: coal mining/ Development of continuous miningThe Joy Ripper (1948) was the first continuous miner applicable to the room-and-pillar method. Read MoreThe Joy Ripper (1948) was the first continuous miner applicable to the room-and-pillar method. Read More