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An Automatic Oil Muffle Furnace, circa 1910. Petroleum is contained in tank A, and is kept under pressure by pumping at intervals with the wooden handle, so that when the valve B is opened, the oil is vaporized by passing through a heating coil at the furnace entrance, and when ignited burns fiercely as a gas flame.
A 'muffle' is the incineration chamber where the body is put. In order to improve the speed at which bodies burned, the muffles were internally joined, resulting in the ashes of individual bodies being mixed. This was illegal, but all subsequent multi-muffle ovens built for the concentration camps were designed in the same way.
This is usually carried out in a 'muffle' furnace, containing a refractory muffle (usually nitride-bonded silicon carbide) heated externally by silicon carbide heating elements. A flow of air through the muffle assists oxidation of the lead, and carries the fumes for safe collection outside the furnace unit.
Furnace "A" is a type c.d. "muffle" furnace. [7] There are very few examples of this type in Europe, and archaeology scholars maintain an absolute reserve on them. [ 8 ] The structure of the "praefurnium" and part of the rectangular corridor (60 centimetres wide and 2.7 metres deep), which served to introduce firewood into the combustion ...
A metallurgical furnace, often simply referred to as a furnace when the context is known, is an industrial furnace used to heat, melt, or otherwise process metals. Furnaces have been a central piece of equipment throughout the history of metallurgy ; processing metals with heat is even its own engineering specialty known as pyrometallurgy .
Furnace (central heating): a furnace, or a heater or boiler, used to generate heat for buildings; Boiler, used to heat water; also called a furnace in American English when used for heating and hot water in a building; Jetstream furnace or Tempest boiler, a design of wood-fired water heater
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