Description
Class F01K : STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
Subclass 1/04: Steam accumulators (use of accumulators in steam engine plants F01K 3/00) for storing steam in a liquid, e.g. Ruth type (in alkali to increase steam pressure F22B 1/2)