| 摘要 |
1,237,308. Rollers. MITSUBISHI JUKOGYO K,K. 2 Oct., 1969, No. 48495/69. Heading F2U. An electrically heated roller for treating filamentary material consists of an outer magnetic shell 10 sealed to an inner sleeve 12, the annular space between them being filled with a heat transfer fluid, and a fixed iron core 28 which carries an A.C. coil 30. The core is secured to a support 18 by bolts 36 passing through insulating washers 34, while the shell 10 has a hub portion 20 secured by a nut 24 to the end of an internal trunnion drive shaft 16. |
