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  2. Level luffing crane - Wikipedia

    en.wikipedia.org/wiki/Level_luffing_crane

    A level-luffing crane is a crane mechanism where the hook remains at the same level while luffing: moving the jib up and down, so as to move the hook inwards and outwards relative to the base. [ 1 ] Usually the description is only applied to those with a luffing jib that have some additional mechanism applied to keep the hook level when luffing.

  3. Crane (machine) - Wikipedia

    en.wikipedia.org/wiki/Crane_(machine)

    The "hammerhead", or giant cantilever, crane is a fixed-jib crane consisting of a steel-braced tower on which revolves a large, horizontal, double cantilever; the forward part of this cantilever or jib carries the lifting trolley, the jib is extended backwards in order to form a support for the machinery and counterbalancing weight. In addition ...

  4. Jib (crane) - Wikipedia

    en.wikipedia.org/wiki/Jib_(crane)

    This specific example uses a level luffing mechanism to maintain the load at approximately the same vertical height as the jib moves through its range of travel. A jib or jib arm is the horizontal or near-horizontal beam used in many types of crane to support the load clear of the main support. [1] [2] An archaic spelling is gib. [3]

  5. Bremerton's Hammerhead Crane [Video] - AOL

    www.aol.com/news/bremertons-hammerhead-crane...

    An important and iconic part of Bremerton's history, the hammerhead crane is now slated for demolition. Josh Farley explains its importance. Bremerton's Hammerhead Crane [Video]

  6. Block-setting crane - Wikipedia

    en.wikipedia.org/wiki/Block-setting_crane

    Small Titan or hammerhead crane. The ultimate development of the dedicated block-setting crane was the hammerhead or 'giant cantilever' Titan crane. These had a deep double truss as a cantilever beam atop a large diameter roller bearing, on a carriage similar to that of the Hercules. The upper edges of the two trusses formed a set of rails for ...

  7. Navy researching properties around shipyard to lease for ...

    www.aol.com/navy-researching-properties-around...

    The Hammerhead crane at the PSNS & IMF in Bremerton in April. The shipyard is planning for a major renovation and modernization known as SIOP, which will span years, and recently put out a request ...

  8. Luff - Wikipedia

    en.wikipedia.org/wiki/Luff

    Level luffing crane, a type of crane where the jib, rather than being fixed, can be raised and lowered; Luffing, when a sailing sheet is eased so far past trim that airflow over the surface is disrupted; The leading edge of a sail

  9. Category:Cranes by type - Wikipedia

    en.wikipedia.org/wiki/Category:Cranes_by_type

    Lattice boom crawler crane; Level luffing crane; P. Patented track crane; R. Ring crane; X. XGC88000 crawler crane