Obsession (1949 film) a body by dissolving it in acid. This had similarities to the John George Haigh case. Accordingly, the British Board of Film Censors refused to grant the film a certificate for a time and its release was held up. "Variety" wrote that the film is slow paced at first but becomes suspenseful. "The New York Times" called it "a first-rate study in suspense and abnormal psychology". Kendal Patterson of the "Los Angeles Times" described it as an early predecessor of "Fatal Attraction". Obsession (1949 film) Obsession, released in the US as The Hidden Room, is a 1949 British crime film
Flash boiler with monotube boiler and there is even use of the term "semi-flash boiler". However, the flash boiler is generally attributed to Léon Serpollet who used a flash boiler in the Gardner-Serpollet steam-powered car from 1896. Serpollet's boiler was a low-water-content type with thick-walled tubes to provide a store of heat. Serpollet patented a steam generator in 1888, US Patent 379,421, but this is an early version which differs from the one illustrated above. Flash boilers are lighter and less bulky than other types, and take less time to raise steam from a cold start. On the other hand they are