steam chest, and below the bore an exhaust-steam BY BN08 BROWN. chest. Cylindrical rocking valves in the steam chests A firm at San Francisco has recently manu- are seated in transverse bores of the cylinder in the factured two of the largest traction engines thick portions of the wall. The valves… … oped portions of Siberia traversed by the railway. VALVE-GEAB FOB ENGINES. THE ESCALANTE EIBEB-CLEANING MACHINE. The new traction engines are not only the largest yet madeon the coast, but they seats. Two diagonal steam-ducts intersect each valve combine certain improvements which insure greater…
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