Johnson boiler - WikipediaThe Johnson boiler is a water-tube boiler used for ship propulsion. The Johnson design was developed by the British engineer J. Johnson in the late 1920s. A patent was granted in 1931, and one of these boilers was installed in the RMS Empress of Britain.List of boiler types, by manufacturer - WikipediaJohnson boiler: one of the first "modern" classes of high-pressure marine oil-fired water-tube boilers. They have a single steam drum above a single water drum. Their small-diameter water-tubes curve outwards on each side to form a cylindrical furnace. As there is no grate or ashpan beneath, firing must be by oil.Talk:Johnson boiler - WikipediaTalk:Johnson boiler. Jump to navigation Jump to search. WikiProject Ships (Rated C-class) This article is within the scope of WikiProject Ships, a project to improve all Ship-related articles. If you would like to help improve this and other articles, please join the project, or contribute to the

O-type boiler - WikipediaO-type boilers first appeared as marine boilers, such as the Johnson boiler, once the switch from coal firing to oil firing began. The large radiant heating area available allows a combustion rate, for a given furnace volume, of around twice that for a contemporary boiler, such as the Yarrow.Boiler (power generation) - WikipediaA boiler or steam generator is a device used to create steam by applying heat energy to water.Although the definitions are somewhat flexible, it can be said that older steam generators were commonly termed boilers and worked at low to medium pressure (7–2,000 kPa or 1–290 psi) but, at pressures above this, it is more usual to speak of a steam generator.Pot boiler - WikipediaA pot boiler is a heated stone used to heat water. In Archaeology. In an archaeological / anthropological context, the term refers to a stone used to move heat from a fire to a vessel to raise the temperature of water in the vessel, including for cooking. The stone is heated in a fire or in embers. When hot enough, the stone is transferred into

Boiler - WikipediaBoilers can be classified into the following configurations: Pot boiler or Haycock boiler/Haystack boiler: A primitive "kettle" where a fire heats a partially filled water container from below. 18th century Haycock boilers generally produced and stored large volumes of very low-pressure steam, often hardly above that of the atmosphere.These could burn wood or most often, coal.Midland Railway Johnson 0-6-0 - WikipediaFrom Wikipedia, the free encyclopedia The Midland Railway Johnson 0-6-0 were a class of locomotives serving Britain &39;s Midland Railway system in the late 19th and early 20th centuries.WikipediaWikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.