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Wikipedia about elevator

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An elevator or lift is a transport device used to move goods or people vertically, from one floor to another. Languages other than English may have loanwords based on either elevator (e.g. Japanese) or lift (e.g. Cantonese). Because of wheelchair access laws, elevators are often a legal requirement in new buildings with multiple floors.

Design

Lifts began as simple rope or chain hoists. A lift is essentially a platform that is either pulled or pushed up by a mechanical means. A modern day lift consists of a cab (also called a "cage" or "car") mounted on a platform within an enclosed space called a shaft, or in Commonwealth countries called a "hoistway". In the past, lift drive mechanisms were powered by steam and water hydraulic pistons. In a "traction" lift, cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. The weight of the car is balanced with a counterweight. Sometimes two lifts always move synchronously in opposite directions, and they are each other's counterweight.

The friction between the ropes and the pulley furnishes the traction which gives this type of lift its name.

Hydraulic lift use the principles of hydraulics to pressurize an above ground or in-ground piston to raise and lower the car. Roped Hydraulics use a combination of both ropes and hydraulic power to raise and lower cars. Recent innovations include permanent earth magnet motors, machine room-less rail mounted gearless machines, and microprocessor controls.

Which technology is used in new installations depends on a variety of factors. Hydraulic lifts are cheaper, but installing cylinders greater than a certain length becomes impractical for very high lift hoistways. For buildings of much over seven stories, traction lift must be employed instead. Hydraulic lifts are usually slower than traction lifts.

Lifts are a candidate for mass customization. There are economies to be made from mass production of the components, but each building comes with its own requirements like different number of floors, dimensions of the well and usage patterns.

Elevator Doors

Elevator doors protect building tenants from falling into the shaft. The most common configuration is to have two panels that meet in the middle, and slide open laterally. In a cascading configuration (potentially allowing wider entryways within limited space), the doors run on independent tracks so that while open, they are tucked behind one another, and while closed, they form cascading layers on one side.

Search results for Elevator

Griffin Technology: Elevator

Griffin Technology designs and manufactures solutions, accessories, and cases for iPhone 3G, ... Home " Products " Elevator. Click here to log in or register; ...www.griffintechnology.com/products/elevator

Elevator (aircraft) - Wikipedia, the free encyclopedia

An elevator decreases or increases the downward force created by the rear wing. ... The elevator is the silver surface on the right hand side of the picture, ...en.wikipedia.org/wiki/Elevator_(aircraft)

The History of the Elevator - Elisha Otis

Elisha Otis invented the Improvement in Hoisting Apparatus - Elisha Graves Otis did not actually invent the elevator - he invented the brake used in modern ...inventors.about.com/library/inventors/blelevator.htm

Retro Elevator - Elevator Interiors

Complete New Elevator Cabs. Modernization Package. Custom Entrance Cladding. Metal Fabrication ... are copyright ©2006 Retro Elevator - All rights reserved.The ...retroelevator.com/index.htm

The Space Elevator Reference

Serves as a reference tool for those interested in exchanging ideas on the scientific, engineering, economic, and policy challenges inherent in constructing the solar systems first space elevator.www.spaceelevator.com/

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News about Elevator

City police officers trapped in elevator with suspect

The Tribune-DemocratTwo Johnstown police officers became trapped in the Public Safety Building elevator Wednesday after a man they arrested became violent. Police were escorting Craig Damien Rummell, 26, for processing at about 1 a.m. when he fought with two officers, causing the elevator to malfunction.http://www.tribune-democrat.com/local/local_story_220230009....

Coyote cheerleaders trapped in elevator

Alice Echo-News JournalAlice high school cheerleaders attending a cheerleading camp at the University of Texas in Austin had a scare when they got trapped in an elevator Tuesday evening, sending one of the cheerleaders to the hospital.http://www.aliceechonews.com/articles/2008/08/07/news/doc489...

26 Cheerleaders Get Stuck In UT Elevator

KPRC Local 2 HoustonAUSTIN -- Twenty-six teenage cheerleaders tried to cram themselves into an elevator at the University of Texas to see how many would fit, but then they got stuck and had to be rescued.http://www.click2houston.com/news/17118557/detail.html

Capitol elevator operators floored by layoff order

The Sacramento BeeThe Capitol elevator operators, a beloved and longtime fixture of the state's legislative hub, were among those who went down with Gov. Arnold Schwarzenegger's layoffs last week.http://www.sacbee.com/111/story/1138354.html

26 teen cheerleaders trapped in elevator

UPIAUSTIN, Texas, Aug. 6 (UPI) -- Police at the University of Texas in Austin said emergency responders freed 26 teen cheerleaders crammed into an elevator, causing the doors to jam.http://www.upi.com/Odd_News/2008/08/06/26_teen_cheerleaders_...

News about Elevator

See Barcelona through the eyes of Gaudí

Atlanta Journal ConstitutionThen we went inside and waited for almost an hour to catch an elevator that took us up in one of the towers, where we got another perspective on the intricacies. Gaudí worked on the church for more than 40 years, and it captures the essential nature ... http://www.ajc.com/1/content/travel/otherdestinations/int_st...

Budget travel in Rome

Los Angeles TimesInside, the subterranean Papal Tombs are free, but there's a charge to ascend to Michelangelo's Dome (about $10 by elevator or $7.50 on foot). Admission to the Papal Treasury Museum costs about $9, and a visit to the fabled Vatican Museums (including ... http://www.latimes.com/la-tr-romebudget1-2008jun01,0,5733645...

Homebuyers crave a little 'extra' flexibility

Arlington Heights Daily HeraldLike all Courthouse Square row houses, the Blanchard features four spacious levels accessed by a private in-home elevator. A two-car underground garage and home theater room comprise the lower level, while the main floor features a great room, dining ... http://www.dailyherald.com/story/?id=240995

Red Cedar Elementary on track for August opening

Island Packet OnlineStairs, an elevator, windows and skylights all are in varying stages of progress. Nearly 98 percent of the masonry work has been finished and holes have been cut for roof installation, said Joe Cook, director of facility projects for the Beaufort ... http://www.islandpacket.com/news/local/story/635665.html

Finally! SAFS dedicates recent renovations

Washington Times-HeraldThis included making the building handicapped-accessible with an elevator, a kitchen, bathrooms and shower area and enlarged upstairs hallways, among other things. The senior center had to apply three times before they finally received the grant this ... http://www.washtimesherald.com/local/local_story_284225845.h...

Search results for Elevator

Griffin Technology: Elevator

Griffin Technology designs and manufactures solutions, accessories, and cases for iPhone 3G, iPhone, iPod, Mac/PC, and more.http://www.griffintechnology.com/products/elevator/

Elevator Consulting & Maintenance Review, Inc.

E.C.M.R., Inc. is a registered, licensed, insured, and qualified private elevator inspection and consulting company.http://www.elevatorinspections.com/

Elevator Brewery and Draught Haus

Restaurant and brewpub located in downtown Columbus. Includes menu, activities and photos.http://www.elevatorbrewing.com/

Elevator Repair Service: Home

Elevator Repair Service is a theater group based in New York City. See the schedule of upcoming shows, read what the press has to say, or get on the mailing list.http://www.elevator.org/

ELEVATOR

Offers web, print, product, motion, interactive and hybrid media for large and small clients. New York and Detroit.http://www.elevatoraccess.com/
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Elevator Music

Elevator Music++ Join the discussion on PangeaDay.org ++ Directed by Serdar Ferit (UK) Problems arise when a conservative old man walks into the same lift as a 15-year-old girl who likes to...Flash - Video

Trapped: 40 Hours In An Elevator......

Trapped: 40 Hours In An Elevator....timelapse...true story.CCTV:Nicholas White was a thirty-four-year-old production manager at Business Week. He was working late on a special assignment and wanted a cigarette. He told a colleague that...Video - Video

Elevator Thief Gets Suplexed: Caugh...

Elevator Thief Gets Suplexed: Caught On TapeA thief tries to steal a woman's purse and shes gets payback by doing a suplex on him. The guy didnt die but it broke his neck.Flash - Video

What Would You Do If? - Elevator - ...

What Would You Do If? - Elevator - ( David Spates )David Spates asks the question and shows the answer of what people would do if they walked into an elevator and a guy with a BIG knife and bloody shirt walked in after them. Check...Flash - Video

Love In An Elevator

Love In An ElevatorGet a rise out of gassy girls, Jedi dogs, Baldwin pigs, smashed office workers and a human turtle that really ought to stop at the Shell station.Flash - Video

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elevator.wmv

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elevator.mpg

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elevator.wmv

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2 and 4-lane roll elevator.avi

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Answers for Elevator

atrix1992

What is the reading scale of the elevator problem?

atrix1992for the accelerating at -1 m/s/s, it is traveling upward but slowing down as it goes up, acceleration is change in velocity and doesn't always mean going faster
speeddemon72087

What is the best, and least rude way to close the elevator door?

speeddemon72087Look on the control operating panel and see if there is a keyswitch labeled "independent service". If that keyswitch is on there, you can try to get a hold of the key for that switch (it is a univers...
GIRL F.

What is the magnitude of the elevator's acceleration the second time?

GIRL F.Ff=mu*m*g though in this case g is changing. (equivalent to saying Ff=mu*N but Normal force changes "Equivalence principle") vi^2=2*Ff*Distance Ff*Dist = constant so TotalAcceleration * Dist = ...
Blueglasses

What kind of flooring is good for a residential elevator cab?

BlueglassesBefore installing your flooring for your elevator cab, you must consider how much the material weighs when you install it. Adding a significant amount of weight to the cab can cause problems to the el...
Chev7x

How to determine tension in a cable when an elevator is accelerated upward?

Chev7xT -W= (10000/9.8) x 3 m/s^2 T= 3061.2245 + 10000 T= 13061.224 N

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