Cast iron is produced by heating iron with a high carbon content until it liquefies, and then casting the iron into moulds of compressed sand.
Cast iron was invented in China in the 5th century BC and poured into moulds to make ploughshares and pots as well as weapons and pagodas. Although steel had been invented, was in use, and was more desirable, cast iron was cheaper and thus was more commonly used for warfare in ancient China.
In the west, cast iron did not become available until the 15th century, and its earliest uses included cannon and shot, and
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later, cast iron cannons, which, while heavier than the existing bronze cannons, were much cheaper to manufacture and enabled more to be produced..
Cast iron pots were made at many English blast furnaces from about the 17th century. In 1707, Abraham Darby patented a method of making pots and kettles thinner and thus cheaper than his rivals could. This meant that his Coalbrookdale furnaces became dominant as suppliers of pots, an activity in which they were joined in the 1720s and 1730s by a small number of other coke-fired blast furnaces.
The ability to manufacture lighter items led to the popularity of cast iron for furniture and garden decoration during the 19th century, of which the Coalbrookdale company was the leading exponent.
Wrought iron became very popular again in the 1920s during the Art Deco period, and its uses included chairs, firescreens, decorative lamps and legs for tables.
Wrought iron differs from cast iron in that articles made from it cannot be mass produced. Each piece must be individually made (wrought) using a hammer on an anvil and a blacksmith's forge.
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Kerosene lamps from the 19th century represent a significant development in lighting technology and played a crucial role in illuminating homes, businesses, and streets during that era. Kerosene is also known as liquid paraffin.
Prior to the introduction of kerosene lamps, lighting options were limited to candles, oil lamps, or gas lamps. Candles were the most common source of light, but they were expensive, produced limited illumination, and posed a significant fire hazard. Oil lamps, fueled by various vegetable oils, were an improvement over candles, but they were still prone to smoke, odor, and the risk of fire. The arrival
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of kerosene lamps in the mid-19th century marked a turning point in lighting technology.
Kerosene, a flammable hydrocarbon liquid derived from petroleum, became a popular fuel for lamps due to its clean-burning properties and relatively low cost. Kerosene lamps were more efficient and produced a brighter, steadier light compared to previous oil lamps. The introduction of kerosene lamps also coincided with advancements in lamp design, with manufacturers producing a wide range of styles and sizes to suit different needs and preferences.
The design of 19th-century kerosene lamps varied, but they typically consisted of a reservoir for holding the kerosene, a burner, and a chimney to direct the light and protect the flame. The reservoir could be made of glass, metal, or ceramic, and it often featured ornate decorations or patterns to enhance the lamp's aesthetic appeal. The burner incorporated a wick that drew kerosene from the reservoir and allowed it to burn, while the chimney helped to stabilize the flame and reduce the risk of accidents.
The introduction of kerosene lamps had a transformative effect on society. They brought illumination to areas that were previously in darkness, making it easier and safer to perform tasks, study, and socialize after sunset. The availability of affordable and reliable lighting had a profound impact on productivity, allowing people to extend their working hours and engage in various activities during the evenings.
Kerosene lamps were widely used in both urban and rural areas throughout the 19th century. They were particularly beneficial in areas without access to gas lighting or electricity, and they remained popular even after the introduction of electric lighting in the late 19th century. Kerosene lamps were commonly found in homes, businesses, and public spaces, including streets and outdoor areas.
However, the use of kerosene lamps was not without its drawbacks. The lamps required regular maintenance, including cleaning the wicks, replenishing the fuel, and ensuring proper ventilation to prevent the accumulation of fumes. Accidents, such as lamp explosions or fires, were also a risk if the lamps were mishandled or not properly maintained.
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