| 摘要 |
A conductor for fluids, usually under pressure, composed of rigid conduit sections which are rotatively connected to one another to enable the distance between an inlet end and an outlet end of the conduit to vary and to permit one end to be attached to and movable with a reciprocally moving action. A counterweight means is provided to partially support the weight of certain of the conduit sections when said sections move from substantially upright toward horizontal positions. A safety interlock prevents the swingably movable conduit sections from swinging away from upright positions while said end of the conduit is in approximately an intermediate position, in substantially the same vertical plane as said swingably movable conduit sections, to counteract any excess force which might tend to force the swingably movable sections out of upright positions.
|
