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2. Lifting hook - Wikipedia

   en.wikipedia.org/wiki/Lifting_hook

   A lifting hook with a safety latch. A lifting hook is a device for grabbing and lifting loads by means of a device such as a hoist or crane.A lifting hook is usually equipped with a safety latch to prevent the disengagement of the lifting wire rope sling, chain or rope to which the load is attached.

3. Bulk-handling crane - Wikipedia

   en.wikipedia.org/wiki/Bulk-handling_crane

   The closing rope is fed into the grab mechanism through either a bellmouth or an arrangement of small rollers. The weight of the grab is supported by the holding rope(s) and pinned to the upper girder allowing some angular freedom. Holding and closing ropes require separate winding drums in the crane.

4. Rigging (material handling) - Wikipedia

   en.wikipedia.org/wiki/Rigging_(material_handling)

   Rigging is the equipment such as wire rope, turnbuckles, clevis, jacks used with cranes and other lifting equipment [1] in material handling and structure relocation. Rigging systems commonly include shackles , master links and slings , and lifting bags in underwater lifting.

5. Crane (machine) - Wikipedia

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

   Hook: the hook is used to connect the material to the crane, suspended from the hoist rope either at the tip (on luffing jib cranes) or routed through the trolley (on hammerhead cranes). Weights : Large, moveable concrete counterweights are mounted toward the rear of the counterdeck, to compensate for the weight of the goods lifted and keep the ...

6. Grab (tool) - Wikipedia

   en.wikipedia.org/wiki/Grab_(tool)

   Roundnose grab; Clamshell grab; Orange-peel grab in Dutch and German they are called poliep grijpers/ Polypengreifer = "polyp grabs". There are different ways of open/close the grabs: electro-hydraulic / diesel-hydraulic; mechanical by rope(s) (1-rope, 2-ropes, 3-ropes, 4-ropes) Grabs can be used for: dredging; bulk handling (e.g. loading ...

7. Wire rope - Wikipedia

   en.wikipedia.org/wiki/Wire_rope

   In stricter senses, the term wire rope refers to a diameter larger than 9.5 mm (3 ⁄ 8 in), with smaller gauges designated cable or cords. [1] Initially wrought iron wires were used, but today steel is the main material used for wire ropes. Historically, wire rope evolved from wrought iron chains, which had a record of mechanical failure.