| 摘要 |
879,827. Pipe joints. MANNESMANN A.G. July 29, 1960, No. 26558/60. Class 99(1). Two elbow-like coupling members 1, 2, are supported by ball-bearings 6, 7, on a common rigid shaft 4 and are rotatably connected together at their rims 1b, 2b, which are sealed by packing 13, the members having inner hubs 1c, 2c, which abut and are sealed by packing 14. The bearings 6, 7, are secured in position, and the coupling members held together, by screw-threaded rings 8, 10 and spacers 5. The outer ends of the bores in the hubs 1c, 2c, are closed by caps 3. |
