| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent the mutual rotation of a pair of pipes constituting a joint applicable to a water pipe bridge. SOLUTION: In a socket 12, formed in the end of one pipe 11 joined to the other, spigot 14 formed in the end of the other pipe 13 is inserted. The outer face of the spigot 14 is thrusted along the periphery of the axial center of the socket 12 the end of a bolt 26 rotatable integrally with the socket 12.
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