| 摘要 |
713,415. Stuffing-boxes. OWEN, A. Dec. 9, 1952, No. 31167/52. Class 122(5) [Also in Groups XXXIII and XXXIV] A .piston 6 secured to a rotary shaft 1. and disposed within a cylinder 9 to which fluid under pressure is supplied, is sealed by packing rings 15 which are compressed between glands 14 and 16. A further seal 19, which may be lined with babbit, is secured in a self-aligning manner by means of bolts 21 and springs 22. |
