| 摘要 |
475,777. Tube couplings. UNITED FLEXIBLE METALLIC TUBING CO., Ltd., and BINGLEY, H. W. May 28, 1937, No. 14853. [Class 99 (i)] An end coupling 1, for a flexible metal tube 5 having a rubber lining tube 7, is formed with a serrated or screw-threaded spigot 6, which is forced into the lining tube 7, and is provided with an integral or attached sleeve 4, adapted to surround and be soldered or otherwise secured to the metal tube 5.
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