| 摘要 |
<p>The coupling devices for connecting pressure conduits are known. They are technically expensive and require a special sleeve. The object of the present invention is to make possible the connection of a socket (1) which may fit with any conventional sleeve. To this effect, there is provided a discharge chamber (15) in the socket which is displaceable downwardly manually by appropriate means (5, 7), so that the stop valve (2, 3) in the sockets may be discharged of the pressure prevailing in the conduit.</p> |
