DEVICE TO RISE SUNKEN OBJECTS Russian patent published in 2008 - IPC B63C7/02 

FIELD: mechanical engineering.

SUBSTANCE: device to rise sunken objects contains four load-lifting mechanisms mounted on a base vessel with kinematical linkage with driving engines, load-gripping appliance, block-and-tackle system consisting from dual multiple tackles including the deflecting blocks enveloped by steel wire ropes integrated into in a moving and motionless, while the moving holder uniting two dual multiple tackles the accommodates a stabilising appliance. Every load-lifting mechanism is made in the form of a basic and additional multiple-turn friction pulleys, consecutively enveloped by ropes, with helical grooves for coils of ropes to be passed there in. The rope running off the additional pulley features a kinematical linkage with a radial-type ropeline spooler to lay the rope in vertically oriented cylindrical container. Between the additional friction pulley and the said spooler, the rope is arranged so that to consecutively envelope three deflecting blocks, the central of which is provided with a counterbalance moving relative to vertical guides, its free end of a rope being fastened to the container bottom.

EFFECT: reduced time of rising sunken object at tolerable rising rate.

3 cl, 3 dwg