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1,124,151. Electric resistance furnaces. C. I. HAYES Inc. 6 April, 1966 [15 July, 1965], No. 15257/66. Heading H5H. An electric furnace 10 comprises a housing 12 into which project a plurality of terminals 72 each having a pair of co-operating curved bars between which a flexible non-metallic resist...

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1. Verfasser: W. WESTEREN,HERBERT
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Zusammenfassung:1,124,151. Electric resistance furnaces. C. I. HAYES Inc. 6 April, 1966 [15 July, 1965], No. 15257/66. Heading H5H. An electric furnace 10 comprises a housing 12 into which project a plurality of terminals 72 each having a pair of co-operating curved bars between which a flexible non-metallic resistance heater 80 is secured and suspended therefrom, a conductor assembly fixed to the lower ends of the heaters and means 114 for supporting a workpiece in a heating zone defined by the heaters. The bars are arranged in a circle so that the suspended heaters form a cylindrical heating zone. The heaters are of woven graphite material and are mounted in a cylindrical vacuum furnace having a removable top 16 and water cooled walls and ends. The heating zone is enclosed in a cylinder composed of layers of graphite felt insulating material 108.