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Knight's Mechanical Encyclopedia (ed. Knight), R. (search)
rd. y′, Greave's pot-sleeper. z′, Reynold's continuous bearing. a′, Stephenson's chair and rail. b′, Adams's rail. c′, Button's rail, with steel top. d′, Brooks's steel-capped rail. e′, Lewis's rail. f′, Hanmer and Grim's steel-topped rail. g′, Hagan's rail h′, Chamber's rail, on elastic webs. i′, Robinson's double rail. j′, Pierce's rail. k′, Peckham's rail. l′, Perkins's rail. m′, Shephard's steel-top rail. n′, Day and Mercer's rail. o′, Dwight's rail. p′, Zahn's rail. q′, Johnston's rail. r′, Stephens and Jenkins's rail. s′, Sanborn's tubular rail. t′, Sanborn's rail. u′, Angle's L-rail on continuous sleeper. v′, Dean and Coleman's street-car rail. w′, rail and sleeper, for the East Indies. The sleeper is bent from a plate of wroughtiron to resist the attacks of insects which destroy wooden sleepers. Parkin's vitrified sleeper, patented in England in 1835, cons