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US5749722A
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Single charge continuous rotary retort furnace with an accessible door
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US4273493A
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Rotary furnace volumetric feeder with sealed chute
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US3878947A
|
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Volumetric feeder for rotary furnaces
|
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US3836324A
|
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Continuous rotary heat treating furnace
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US3204682A
|
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Oxy-gas blowpipe
|
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US2827864A
|
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Self-seating furnace cover
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US2726854A
|
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Shuffle-furnace bumper
|
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US2809663A
|
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Blowpipe assembly
|
|
US2671654A
|
|
Movable hearth muffle furnace
|
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US2671655A
|
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Shuffle muffle heat treating furnace
|
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US2311375A
|
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Flow indicator
|
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GB470701A
|
|
Improvements in and relating to a process and apparatus for case hardening articles of iron, steel, or alloys thereof
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US1844604A
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Heat reclaiming apparatus
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US1908357A
|
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Gas controlled valve operated by suction
|
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US1853863A
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Gas control valve operated by air pressure
|
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US1742607A
|
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Gas burner
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US733274A
|
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Gas-furnace.
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US762654A
|
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Method of annealing and tempering forms of metal.
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US716277A
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Gas-furnace.
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CA787323A
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Spiral loading chute for rotary furnaces
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