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Chimney Felling
{{Short description, Process of demolishing a chimney Chimney felling is the practice of demolishing or "felling" a chimney stack. Modern health and safety rules now largely prohibit the practice in industrialized areas; the current technique is to pack explosives around the base of the chimney. It is, however, popular within China's old industrial centers. The UK's Fred Dibnah, a steeplejack A steeplejack is a craftsman who scales buildings, chimneys, and church steeples to carry out repairs or maintenance. Steeplejacks erect ladders on church spires, industrial chimneys, cooling towers, bell towers, clock towers, or any other hi ..., became a celebrity for his technique of chimney felling. He would remove bricks from the base of the chimney and shore up the structure with wooden supports. When he had judged that enough of the chimney had been removed so as to not be able to support its own weight, he would set fire to the supports. He would then stand clear as the chimney ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chimney
A chimney is an architectural ventilation structure made of masonry, clay or metal that isolates hot toxic exhaust gases or smoke produced by a boiler, stove, furnace, incinerator, or fireplace from human living areas. Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the combustion in what is known as the stack, or chimney effect. The space inside a chimney is called the ''flue''. Chimneys are adjacent to large industrial refineries, fossil fuel combustion facilities or part of buildings, steam locomotives and ships. In the United States, the term ''smokestack industry'' refers to the environmental impacts of burning fossil fuels by industrial society, including the electric industry during its earliest history. The term ''smokestack'' (colloquially, ''stack'') is also used when referring to locomotive chimneys or ship chimneys, and the term ''funnel'' can also be used. The height of a chim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Explosive
An explosive (or explosive material) is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure. An explosive charge is a measured quantity of explosive material, which may either be composed solely of one ingredient or be a mixture containing at least two substances. The potential energy stored in an explosive material may, for example, be * chemical energy, such as nitroglycerin or grain dust * pressurized gas, such as a gas cylinder, aerosol can, or BLEVE * nuclear energy, such as in the fissile isotopes uranium-235 and plutonium-239 Explosive materials may be categorized by the speed at which they expand. Materials that detonate (the front of the chemical reaction moves faster through the material than the speed of sound) are said to be "high explosives" and materials that deflagrate are said to be "low explosives". Explosives may al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fred Dibnah
Frederick Travis Dibnah, (29 April 1938 – 6 November 2004) was an English steeplejack and television personality, with a keen interest in mechanical engineering, who described himself as a "backstreet mechanic". When Dibnah was born, Britain relied heavily upon coal to fuel its industry. As a child, he was fascinated by the steam engines which powered the many textile mills in Bolton, but he paid particular attention to chimneys and the men who worked on them. He began his working life as a joiner, before becoming a steeplejack. From age 22, he served for two years in the Army Catering Corps of the British Army, undertaking his National Service. Once demobilised, he returned to steeplejacking but met with limited success until he was asked to repair Bolton's parish church. The resulting publicity provided a boost to his business, ensuring he was almost never out of work. In 1978, while making repairs to Bolton Town Hall, Dibnah was filmed by a regional BB ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steeplejack
A steeplejack is a craftsman who scales buildings, chimneys, and church steeples to carry out repairs or maintenance. Steeplejacks erect ladders on church spires, industrial chimneys, cooling towers, bell towers, clock towers, or any other high structure. In the UK, steeplejacks now use a belay rope fall-arrest system (similar to the method used by rock climbers) attached to the ladders as they are erected to eliminate solo climbing and greatly reduce the risk of falls from height. Once ladders have been erected, the next stage is usually to suspend a bosun's chair (a strong wooden plank on which the steeplejack can sit, pull themselves upwards or lower themselves downwards, or sit in a stationary position), but abseiling (UK) or rappelling (US) equipment is replacing the bosun's chair on many operations because of its lighter weight. Once this has been done it is possible to use this access to begin building scaffolding to carry out any repairs which may be required. This ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
