Patent ID: 8141389

Claim:
A crucible lift device assembly for removing a crucible from a mold, comprising: a mold for forming a silica glass crucible; a lid member for sealing up the silica glass crucible; a decompressor which decompresses an internal space of the silica glass crucible sealed with the lid member; and a vertically-moving mechanism located above the lid member which lifts the silica glass crucible together with the lid member in a state where the internal space of the silica glass crucible is decompressed, wherein one of the lid member and a connecting plate that is connected to the lid member is provided with an arm that is configured to engage the mold so that the vertically-moving mechanism can lift the mold together with the lid member in a state where the arm is engaged with the mold; and comprising a stand, wherein the vertically-moving mechanism is fixed to a beam provided on an upper end of the stand, and constitutes a portion of a crane device which vertically moves the lid member.