. American engineer and railroad journal . Flo, XI. THE THORNYCROFT MOILER, 1887. Engineering -Jlitj 83, 1887. Thornycroft modified Rowans 1865 design by using twocylinders at the bottom instead of one (tig. 27), placed thegrates between them and put several extra bends in the tubes /. Fig. as. .THE THUKNYCROFT, , Daring Tup,. to increase the amount of tube surface between the points offastening, delivering the up-current above the water-line. Heretained the down-take tube, outside the furnace. His 1894, the Daring type of boiler (fig. 28), reverts morenearly to Rowans original units.

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering