Title: Induction crucible furnace

Abstract: An induction crucible furnace having a crucible surrounded by an induction coil member that is prestressed in axial direction by ring members disposed at opposite ends of the coil member and connected together by a plurality of tie rods extending parallel to the axis of the coil member and distributed uniformly about the periphery of the crucible one of the ring members being fixed to a base frame of the furnace, includes spacer means disposed between the ring members and the coil member and having inner and outer diameters matching those of at least one of the members.

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Inventors: Hegewaldt, Fritz (Herdecke, DT)
Gillhaus, Horst (Dortmund-Loh, DT)
Erdman, Otto (Dortmund, DT)

Application Number: 460184
Filing Date: 1974-04-11
Publication_date: 1976-03-16
Assignee: Brown, Boveri & Cie Aktiengesellschaft (Mannheim, DT)
Primary Class(es): 373/153
Other Classes:
US Patent Ref:

2852587	Sep, 1958	Junker	13/27.
2997512	Aug, 1961	Tama	13/27.
3303259	Feb, 1967	Junker	13/27.
3350494	Oct, 1967	Kunitsky et al.	13/27.

Other Refs:
Primary Examiner: Envall, Jr., R. N.
Assistant Examiner:
Attorney: Lerner; Herbert L.