Abstract A device mounted on a crane particularly a floating crane for preventing collision of a load with a seacraft being loaded in rough weather in which one end of a follow-up rope is secured to the seacraft and the rope is reeved around blocks mounted on the boom with the other end being connected to a winch drum for changing the length of the rope to suit the changing distance between the crane and the seacraft. A load supporting rope is reeved around other blocks on the boom and blocks on a crosspiece connected with a mechanism for simultaneously tensioning of both ropes to compensate for changes in distance between the crane and seacraft. Such mechanism includes a two-arm lever mounted in the frame with one arm being connected to the crosspiece and the other arm articulated to a power cylinder-piston unit on the crane serving to turn the lever with a force required to prevent collision of the load with the seacraft.
Inventors
👤 Rostislav Ivanovich Lakiza
👤 Petr Ivanovich Soloviev
👤 Vasily Maximovich Dukov
👤 Grigory Rakhmielevich Baron
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-03 15:34
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
194 words
A device mounted on a crane for preventing collision of a load with a seacraft being loaded in rough weather, comprising a boom for the crane; a winch having a drum positioned on the crane; blocks mounted on the boom, a follow-up rope running around said blocks and having one end secured to the seacraft; the other end of said follow-up rope being connected to the drum of the winch for changing the length of said follow-up rope to suit the distance between said crane and the seacraft; a load supporting rope; a crosspiece provided with blocks mounted thereon and supporting said follow-up and load ropes; a mechanism for simultaneous tensioning of said load and follow-up ropes during changes in the distance between said crane and seacraft, said mechanism including a lever having arms of different length, said lever being pivotally mounted on said crane; a power cylinder-piston unit mounted on said crane; the longer arm of said lever being connected with said crosspiece and means articulating the shorter arm to the power cylinder-piston unit for simultaneous turning of said lever with a force required for preventing collision of the load with said seacraft.
Claim 2
Independent Claim
194 words
A device mounted on a crane for preventing collision of a load with a seacraft being loaded in rough weather, comprising a boom for the crane; a winch having a drum positioned on the crane; blocks mounted on the boom, a follow-up rope running around said blocks and having one end secured to the seacraft; the other end of said follow-up rope being connected to the drum of the winch for changing the length of said follow-up rope to suit the distance between said crane and the seacraft; a load supporting rope; a crosspiece provided with blocks mounted thereon and supporting said follow-up and load ropes; a mechanism for simultaneous tensioning of said load and follow-up ropes during changes in the distance between said crane and seacraft, said mechanism including a lever having arms of different length, said lever being pivotally mounted on said crane; a power cylinder-piston unit mounted on said crane; the longer arm of said lever being connected with said crosspiece and means articulating the shorter arm to the power cylinder-piston unit for simultaneous turning of said lever with a force required for preventing collision of the load with said seacraft.
Claim 3
Dependent Claim
34 words
The device according to claim 1, including a compressed gas accumulator and said power cylinder-piston unit being hydraulic and its cylinder space being in communication with the fluid-filled space of the compressed gas accumulator.