FLOATING SHIP-REPAIRING DOCK Russian patent published in 1995 - IPC

FIELD: ship-repairing. SUBSTANCE: floating ship-repairing dock has pontoon 1 with ballast compartments and side walls 2 and 3 mounted on pontoon 1. Arranged inside dock over its transverse section are multi-section (in height) inflatable sealing tires 4 and 5 for sealing up the hull under repair in dock. Tire 4 is held stationary at extremity 6 of the dock and tire is mounted for lengthwise motion. Side wall 3 is mounted for motion across pontoon 1. Mounted on its upper surface are mechanisms 11 and 12 for changing the length of sealing tires 4 and 5. Mechanism 11 is held stationary at extremity 6 of the dock and is designed for changing the length of stationary sealing tire 4. Mechanism 12 is secured on movable platform and is designed for changing the length of movable tire 5. EFFECT: enhanced reliability. 4 cl, 6 dwg