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2. Boiler explosion - Wikipedia

   en.wikipedia.org/wiki/Boiler_explosion

   Boiler explosions are of a particular danger in (locomotive-type) fire tube boilers because the top of the firebox (crown sheet) must be covered with some amount of water at all times; or the heat of the fire can weaken the crown sheet or crown stays to the point of failure, even at normal working pressure.

3. Firebox (steam engine) - Wikipedia

   en.wikipedia.org/wiki/Firebox_(steam_engine)

   Normally the top of the boiler (wrapper sheet) over the firebox is radial to match the contour of the boiler; however, due to the problem of placing stays at right angles to both the wrapper sheet and the crown sheet (see above) the Belpaire firebox was developed. In the Belpaire design, the wrapper sheet is roughly parallel with the firebox ...

4. Ceresota Building - Wikipedia

   en.wikipedia.org/wiki/Ceresota_Building

   The walls were repaired and a new mansard roof built. A new interior was built in the shell of the building. The mill and attached boiler house were converted to office space. The Minneapolis Boiler Works Building (west of the Ceresota elevator) was demolished in 1985 and is now a plaza. The east end of the building had been demolished in 1908 ...

5. Glossary of boiler terms - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_boiler_terms

   Crown sheet The upper sheet of the inner firebox on a locomotive boiler. It is the hottest part of the firebox, and sometimes at risk of boiler explosion, should the water level drop and the crown sheet be exposed and thus allowed to overheat. Supported from above by complex stays. Damper

6. Fire-tube boiler - Wikipedia

   en.wikipedia.org/wiki/Fire-tube_boiler

   The fire-tube boiler developed as the third of the four major historical types of boilers: low-pressure tank or "haystack" boilers, flued boilers with one or two large flues, fire-tube boilers with many small tubes, and high-pressure water-tube boilers. Their advantage over flued boilers with a single large flue is that the many small tubes ...

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