| 摘要 |
973,719. Expansion joints. C. A. PARSONS & CO. Ltd. March 28, 1963 [May 21, 1962], No. 19525/62. Heading F2G. [Also in Divisions F1 and F4] A flexible bellows 8 of square cross-section connects sections of a steam turbine exhaust duct. Bolts, rods or links 9 are fitted to opposing flanges of the bellows 8 to provide means of retraction and to transmit stresses during running of the turbine. |
