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  2. Weeks 533 - Wikipedia

    en.wikipedia.org/wiki/Weeks_533

    The floating barge-crane, originally named Marine Boss, was built for Murphy Pacific Marine.The barge was assembled by Zidell Explorations from scrapped ship steel in Oregon [2] in 1966 and fitted in San Francisco with a heavy 500-ton revolving crane made by Clyde Iron Works [3] to perform the heavy girder and deck-section lifts for construction of the 1967 San Mateo-Hayward Bridge.

  3. Patented track crane - Wikipedia

    en.wikipedia.org/wiki/Patented_track_crane

    Earl T. Bennington, an electric motor salesman, had installed some of the Louden systems during World War I. Realizing the sales potential of motor propelled systems, he convinced Cleveland Electric Tramrail to enter the industry. [5] Two years later, a line of underhung cranes and monorails were developed and marketed by Cleveland Electric ...

  4. Link-Belt Cranes - Wikipedia

    en.wikipedia.org/wiki/Link-Belt_Cranes

    The 1900s also brought new technologies to Link-Belt cranes and excavators. Continuous-track crawler systems moved Link-Belt products off the railroad chassis, removing the need for temporary tracks. Dragline excavators expanded the power of crane-shovel systems. By 1922, Link-Belt expanded into this crawler-mounted crane-shovel excavator ...

  5. C-57D - Wikipedia

    en.wikipedia.org/wiki/C-57D

    A room with 16 bunk beds, with a pit and crane between it and the central area. A room with 9 "decelerator platforms". The film shows the crew standing on these low, cylindrical platforms, enveloped within an opaque blue glow while the saucer decelerates from hyperdrive, but does not show whether these low platforms must also be used during the ...

  6. PaR Systems - Wikipedia

    en.wikipedia.org/wiki/PaR_Systems

    PAR Systems was awarded the subcontract for the Main Crane System (MCS) for the Chernobyl New Safe Confinement. the system consists of two overhead bridge cranes, which support two 50-ton trolley hoists, and a Mobile Tool Platform (MTP). The MTP is suspended from a third trolley using a wire rope tensile truss with three paired winches, giving ...

  7. Container crane - Wikipedia

    en.wikipedia.org/wiki/Container_crane

    High-profile Cranes in the Port of Bremerhaven. There are two common types of container handling gantry crane: high profile, where the boom is hinged at the waterside of the crane structure and lifted in the air to clear the ships for navigation, and low profile, where the boom is shuttled toward and over the ship to allow the trolley to load and discharge containers.

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  9. Left Coast Lifter - Wikipedia

    en.wikipedia.org/wiki/Left_Coast_Lifter

    Left Coast Lifter is a floating derrick barge or sheerleg which was built to assist in the eastern span replacement of the San Francisco–Oakland Bay Bridge.The barge carries a shear legs crane which is the largest barge crane ever used on the U.S. West Coast.

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