Lined clamp for hoses and control lines

Apparatus comprising

• a tubular riser positioned in a body of water,
• a mounting assembly positioned on the tubular riser,
• a clamp assembly positioned on the mounting assembly,
• a control line positioned in the clamp assembly parallel to the riser,
• wherein
• the clamp assembly comprises an upper clamp half and a lower clamp half;
• each clamp half hingedly connected along a hinge edge of each clamp half to the other clamp half and latchably connected along a latch edge of each clamp half to the other clamp half by latch structure carried by each clamp half, wherein the latch structure carried by the upper clamp half comprises a pair of parallel ears protruding transversely away from the latch edge of the upper clamp half and defining a pair of aligned boreholes, a pivot pin having a transverse borehole carried by the aligned boreholes through the ears, a bolt carried in the transverse borehole through the pivot pin, and a toggle bar having a threaded transverse borehole therethrough threadably mounted on the bolt, and wherein the latch structure carried by the lower clamp half comprises a pair of parallel ears protruding transversely from the latch edge of the lower clamp half and defining a pair of saddles facing away from the upper clamp half and contoured for close receipt of the toggle bar,
• the toggle bar and the pivot pin each having a longitudinal axis which is parallel to the longitudinal axis of the riser.

A method for running control lines alongside a riser tube as the riser tube is lowered into a body of water, said method comprising

• fastening a mounting assembly to the riser tube with U bolts, said mounting assembly carrying a clamp assembly,
• said clamp assembly comprising an upper clamp half and a lower clamp half, hingedly connected along a hinge edge of each clamp half, the upper clamp half being movable from a clamp open position to a clamp closed position,
• said upper clamp half carrying a latch structure along a latch edge opposite from the hinge edge comprising a pair of parallel ears protruding transversely away from the latch edge of the upper clamp half and defining a pair of aligned boreholes, a pivot pin having a transverse borehole carried by the aligned boreholes through the ears, a bolt carried in the transverse borehole through the pivot pin, and a toggle bar having a threaded transverse borehole therethrough threadably mounted on the bolt, and latch structure carried by the lower clamp half along a latch edge opposite from the hinge edge comprising a pair of parallel ears protruding transversely from the latch edge of the lower clamp half and defining a pair of saddles facing away from the upper clamp half and contoured for close receipt of the toggle bar,
• wherein the bolt is movable from a disengagement position to an engagement position, and the toggle is movable from an unlatched position to a latched position,
• positioning a control line in the clamp assembly when the clamp assembly is in the clamp open position, the bolt is in a disengagement position, and the toggle is in an unlatched position,
• moving the upper clamp half into the clamp closed position,
• moving the bolt into the engagement position,
• moving the toggle into the latched position, and
• lowering the riser.