enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. List of historical harbour cranes - Wikipedia

   en.wikipedia.org/wiki/List_of_historical_harbour...

   Built in 1751, it replaced another crane from 1647. A historic monument since 1935, it was damaged in a fire in 1978 but restored. Wood, iron cladding Alter Kranen: Würzburg: Germany Main: 1767–1773 by Franz Neumann, two booms, each with chain and hook Stone Zollkran: Trier: Germany Mosel: 1774, in service until 1900, two booms, one to ...

3. Hoist (device) - Wikipedia

   en.wikipedia.org/wiki/Hoist_(device)

   Hoist atop an elevator. A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.

4. Crane (machine) - Wikipedia

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

   Manual crane from the late 19th century used for unloading small loads from ships at the Port of Barcelona, Spain A crane is a machine used to move materials both vertically and horizontally, utilizing a system of a boom , hoist , wire ropes or chains , and sheaves for lifting and relocating heavy objects within the swing of its boom.

5. Rigging (material handling) - Wikipedia

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

   Chain – Series of connected links which are typically made of metal; Chain hoist – Device used for lifting or lowering a load; Chain stopper; Come-along – Lever operated, portable ratchet winch; Crane (machine) – Type of machine; Crawler (rigging) Hook – Tool used to grab onto, connect, or attach to something

6. Differential pulley - Wikipedia

   en.wikipedia.org/wiki/Differential_pulley

   He claimed that many engineering firms conceded on the difficulty of efficiently disengaging the chain from the teeth as the pulleys turned, but his firm developed a "pitch" chain which solved the issue. Marketed as "Weston Differential Pulley Blocks with Patent Chain Guides", the pulley had good sales, namely, 3000 sets in 9 months.

7. Rigger (industry) - Wikipedia

   en.wikipedia.org/wiki/Rigger_(industry)

   Riggers attach loads of equipment to cranes or structures using shackles, cables, chains, clamps or straps, employing pulleys, winches, lifts or chain hoists (aka chain motors). Quick load calculations are necessary for each load and engineering principles are always in play.