Motion control: Statue of Liberty rescue elevator

Application Update: At the Statue of Liberty, the new fast, efficient rescue elevator features a smooth ride to the top, ensured by a motor drive, to improve safety, emergency access, and evacuation for the crown jewel of U.S. statues and tourist destinations.

03/18/2013


A major renovation to the interior of the Statue of Liberty, equally important in the likely increase in daily visits to the crown, is a sophisticated rescue elevator, manufactured by Tower Elevator Systems Inc. (TESI). The elevator shaft shows compact deSuperstorm Sandy damage to the base has been repaired, and the Statue of Liberty reopened July 4. It was closed since November 2012.


A $30 million Statue of Liberty renovation, for the interior of the copper statue and its concrete and granite pedestal, was completed in October 2012, in the time for the monument’s 126th anniversary. Included were “Life and Safety Upgrades” conducted by the National Park Service (NPS), such as three new elevators, upgraded stairs from the top of the pedestal to the crown, upgrades to the bathrooms and fire suppression systems, and new mechanical and electrical systems for climate control in certain high-traffic areas.

Liberty Island, the home of the Statue of Liberty in the New York Harbor, hosts approximately 3.5 million visitors in a typical year. Open every day except Christmas, the statue is one of the most recognizable icons in the world, and the national park in which it resides is a genuine U.S. “bucket list” tourist destination.

For the first time, people in wheelchairs or with accessibility needs are able to visit one of the observation decks at the top of the pedestal, and general traffic flow and visitor amenities have been improved. A NPS official estimated that the renovations will allow 26,000 more people to visit the interior of the monument annually.

More crown visitors

Of the thousands of people who visit the monument each day, only a small portion venture to the top of the crown. Reservations have been limited to three groups of 10 guests per hour, a total of 240 guests in the eight-hour visiting day. Tickets to the crown are often sold out months in advance, and guests are required to climb 393 steps from the top of the pedestal to the crown.

Statue of Liberty rescue elevator was tested at the TESI plant in Round Rock, Texas, prior to shipping and installation to New York City. The elevator has spring set, electrically released fail-safe motor brakes, which act in normal operation more as parkRenovations include upgrades to the stair rails and protective glass on the spiral staircases, intertwined in a double-helix configuration, that lead guests to and from the crown. This upgrade will likely increase daily access to the crown once the monument is reopened again. (The statue was opened only briefly after the renovations were completed, having been closed again after the island access docks and walkways were damaged by Hurricane Sandy. A reopening date had not been set as of early March.)

Another major renovation to the interior of the statue, equally important in the likely increase in daily visits to the crown, is a sophisticated rescue elevator manufactured by Tower Elevator Systems Inc. (TESI). TESI is an Austin, Texas, manufacturer of special use, custom designed, rack-and-pinion elevators, with installations in mines, steel mills, power plants, airports, and manufacturing facilities.

Rescue and maintenance design

The rescue elevator is used for emergency personnel and maintenance activities, and is the only elevator installed inside the statue, traveling from the top of the pedestal to the crown. It is installed adjacent to the spiral staircases, allowing emergency personnel to reach distressed visitors at four intervals along the route. With a carrying capacity of three people, the rescue elevator provides a much-enhanced safety feature, allowing a visitor to be transported safely to the main elevator for complete egress from the monument without having to navigate the tight and crowded stairs. The TESI elevator replaces an obsolete elevator that had been in place for over 30 years for the same purpose.

“One of the major challenges of the project was the incredibly tight space inside the statue and the nature of working in a historical structure,” said Todd Grovatt, TESI president. “It required a highly innovative and customized design, making sure the system attached to the exact same points as the old elevator, with no modifications to the historically protected interior statue structure. Our rack-and-pinion technology allows the flexibility for an elevator to be placed just about anywhere you can mount the hoistway gear rack. The rescue elevator was custom designed specifically for this application and location. It is the only elevator of its kind in the world.”

See additional photos, application information, and links next page.


<< First < Previous 1 2 Next > Last >>

No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
Each year, a panel of Control Engineering editors and industry expert judges select the System Integrator of the Year Award winners.
Control Engineering Leaders Under 40 identifies and gives recognition to young engineers who...
Learn more about methods used to ensure that the integration between the safety system and the process control...
Adding industrial toughness and reliability to Ethernet eGuide
Technological advances like multiple-in-multiple-out (MIMO) transmitting and receiving
Virtualization advice: 4 ways splitting servers can help manufacturing; Efficient motion controls; Fill the brain drain; Learn from the HART Plant of the Year
Two sides to process safety: Combining human and technical factors in your program; Preparing HMI graphics for migrations; Mechatronics and safety; Engineers' Choice Awards
Detecting security breaches: Forensic invenstigations depend on knowing your networks inside and out; Wireless workers; Opening robotic control; Product exclusive: Robust encoders
The Ask Control Engineering blog covers all aspects of automation, including motors, drives, sensors, motion control, machine control, and embedded systems.
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
News and comments from Control Engineering process industries editor, Peter Welander.
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
This is a blog from the trenches – written by engineers who are implementing and upgrading control systems every day across every industry.
Anthony Baker is a fictitious aggregation of experts from Callisto Integration, providing manufacturing consulting and systems integration.
Integrator Guide

Integrator Guide

Search the online Automation Integrator Guide
 

Create New Listing

Visit the System Integrators page to view past winners of Control Engineering's System Integrator of the Year Award and learn how to enter the competition. You will also find more information on system integrators and Control System Integrators Association.

Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Control Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.