Chapter XVIII. HYDRAULIC MACHINERY. The siphon--The bucket pump--The force-pump--The most marvellous pump--The blood channels--The course of rivers and lakes. The lines of force, 116, 162. "Linking up," 65. Locks, 430; Barron, 433; Bramah, 437; Chubb, 433, 434; Hobbs, 437; simplest, _431_; tumbler, _432_; Yale, _436_. Locking gear for reversing locomotives the fire-brick arch is replaced by new facts, and the way of.