Puretic power block Puretic power block The Puretic power block is a special kind of mechanised winch used to haul nets on fishing vessels. The power block is a large powered aluminium pulley with a hard rubber-coated sheave. While many men were needed for the back-breaking work of hauling a purse seine manually, the same work could be done by fewer men with a power block. The Puretic power block revolutionized the technology of hauling fishing nets, particularly purse seine nets. According to the Food and Agriculture Organization of the United Nations (FAO), "no single invention has contributed more to the success of
Rope-a-dope take punishment in the belly". Kalinsky told him: "Do what you do in a training session: Act like a dope on the ropes." Ali then replied: "So, you want me to be a rope-a-dope?" According to Angelo Dundee, Kalinsky told Ali: "Why don't you try something like that? Sort of a dope on the ropes, letting Foreman swing away but, like in the picture, hit nothing but air." The publicist John Condon popularized the phrase "rope-a-dope". The maneuver is most commonly associated with the match between Muhammad Ali and George Foreman, known as The Rumble in the Jungle. Foreman was