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Rumford Roaster
The Rumford roaster is an early cast iron oven, invented by Benjamin Thompson, Sir Benjamin Thompson, Count Rumford,https://streetsofsalem.com/2013/02/01/rumford-roasters/ around 1800. It was part of his development of the kitchen range, which gave more control of the cooking and saved fuel. He published his research in 1805. The Rumford roaster is a cylinder of cast-iron set into a brick wall. It is heated by a separate firebox below, and the ashes fall into a lower box. Coal or charcoal is burned to get the oven and bricks up to temperature, then the bricks continue to heat the oven after the fuel is burnt. Rumford's invention distributed heat evenly around the food. A system of moisture-venting tubes and blowpipes improved browning. A similar design, the Reip "Bake Oven and Roaster", was patented by Henry Reip in 1825. The Rumford roaster was often built next to a Rumford fireplace, in the wall of a kitchen. The Rumford roaster was ultimately made obsolete by improvements in ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cast Iron
Cast iron is a class of iron–carbon alloys with a carbon content of more than 2% and silicon content around 1–3%. Its usefulness derives from its relatively low melting temperature. The alloying elements determine the form in which its carbon appears: Cast iron#White cast iron, white cast iron has its carbon combined into an iron carbide named cementite, which is very hard, but brittle, as it allows cracks to pass straight through; Grey iron, grey cast iron has graphite flakes which deflect a passing crack and initiate countless new cracks as the material breaks, and Ductile iron, ductile cast iron has spherical graphite "nodules" which stop the crack from further progressing. Carbon (C), ranging from 1.8 to 4 wt%, and silicon (Si), 1–3 wt%, are the main alloying elements of cast iron. Iron alloys with lower carbon content are known as steel. Cast iron tends to be brittle, except for malleable iron, malleable cast irons. With its relatively low melting point, g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
