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2. Lewis (lifting appliance) - Wikipedia

   en.wikipedia.org/wiki/Lewis_(lifting_appliance)

   The lewis is liable to slip out of the seating if some of the weight of the stone is subtracted from the appliance, such as when the stone bumps on the scaffolding on its way up to its final location. For this reason, a safety sling should always be used together with the lewis until the stone is reasonably close to its final position.

3. Climbing formwork - Wikipedia

   en.wikipedia.org/wiki/Climbing_formwork

   Crane-Climbing formwork: The working platform and the formwork are a unit. Climbing formwork (crane-climbing): in this type of climbing formwork, the formwork around the structure is displaced upwards with the help of one or more cranes [4] once the hardening of the concrete has proceeded far enough.

4. 161 Maiden Lane - Wikipedia

   en.wikipedia.org/wiki/161_Maiden_Lane

   161 Maiden Lane (also known as One Seaport, 1 Seaport, or Seaport Residences) is an incomplete 670 ft (205 m) tall residential skyscraper on Maiden Lane in the Financial District of Manhattan, New York City, United States.

5. Scaffolding - Wikipedia

   en.wikipedia.org/wiki/Scaffolding

   Scaffolding for rehabilitation in Madrid, Spain [1] Scaffolding for renovation on the Virgin Mary statue, Santiago de Chile, Chile.. Scaffolding, also called scaffold or staging, [2] is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other human-made structures.

6. Contractor behind WTC scaffold collapse cited in previous ...

   www.aol.com/news/2014-11-13-contractor-behind...

   A 2008 incident involving a scaffold collapse 47 floors over Manhattan, which occurred only months after Tractel repaired the faulty equipment, resulted in the death of one of two window washers ...

7. Movable scaffolding system - Wikipedia

   en.wikipedia.org/wiki/Movable_scaffolding_system

   A movable scaffolding system (MSS) is a special-purpose self-launching form used in bridge construction, specifically prestressed concrete bridges with segments or spans that are cast in place. The movable scaffolding system is used to support a form while the concrete is cured; once the segment is complete, the scaffold and forms are moved to ...