. Official proceedings . n & Co., Ltd. of Darling-ton, England, two years ago for Fords Museum. A very completeand exhaustive study was made by the firm, and the replica issupposed to be the most accurate copy of the Rocket. Stephensons locomotive had the smooth wheels, direct con- 82 nection of the engine to the pins in the wheels, and the exhaustfrom the cyHnders turned into the smokebox—features which wereknown and used before, but there was one essential detail inthe engine which was new, and that was the multi-tubular boilerwith a stayed, square firebox, surrounded by water walls, theboil
. Official proceedings . n & Co., Ltd. of Darling-ton, England, two years ago for Fords Museum. A very completeand exhaustive study was made by the firm, and the replica issupposed to be the most accurate copy of the Rocket. Stephensons locomotive had the smooth wheels, direct con- 82 nection of the engine to the pins in the wheels, and the exhaustfrom the cyHnders turned into the smokebox—features which wereknown and used before, but there was one essential detail inthe engine which was new, and that was the multi-tubular boilerwith a stayed, square firebox, surrounded by water walls, theboiler which served as a pattern for all locomotive boilers forover a century, and which bears Stephensons name. This boilerwas the heart of the locomotive and the secret of the successof the Rocket. It enabled it to run at a speed of 29^/2 milesan hour without load, and at 20 miles with a car containing 36passengers. When the tender was detached, the engine attained aterrific speed for those davs, of 33 miles an Fig. 3—Stephensons Rocket of 1829. The multi-tubular boiler itself is not considered to beStephensons invention. Xathan Read patented a multi-tubularboiler in the United States long before Stephenson. Seguin inFrance, the builder of the first railroad from Etienne to Lyons,had a locomotive with a multi-tubular boiler of his own just be-fore the Rainhill Trials. He bought two locomotives fromStephenson, rebuilt them—it is positively known that he rebuiltat least one of the two—which got a multi-tubular boiler with aseparate brick firebox. It is even stated that Stephensons col-laborator. Booth, Secretary of the Company, was sent by Stephen-son to France to look at Seguins boiler, which was reputed tobe very efificient. Upon his return he and Stephenson built theboiler for the Rocket. Booths share in the design must have 83 been considerable since tbe ju(l,i;es of tbe Rainbill l^ials (bvidedthe £500 prize between Stephenson and The great contribution
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