| 摘要 |
Apparatus for raising, rotating and turning a heavy part, especially the lid (5) of a vacuum kettle (14) of a crystal pulling device comprises an extending bolt (26) held by a solid part (15) of the device and horizontally extending lips (34,34') arranged on housing (24) surrounding one of the bolts (26). In the housing (35) a threaded pin (37) extending parallel to a housing part (*28) is applied with a hand lever (21) which interacts with the screw (38), which is held on the housing (24). The housing part (28) surrounds a pin (27), which is connected to the apparatus part or lid (5). |
