Has anyone here not used a revolving door before?

pete6032

Diamond Member
Dec 3, 2010
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Has anyone here not walked through a revolving door before? Are they common where you live?

Old-Revolving-Door.jpg
 

lxskllr

No Lifer
Nov 30, 2004
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Haven't seen one in years. They're more a city thing, or used to be, and I avoid the city as much as possible.
 

mindless1

Diamond Member
Aug 11, 2001
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I'm near a major city where there are several, but none once you get a couple miles out.
 
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clamum

Lifer
Feb 13, 2003
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I've used them a few times but it's not very often at all. I don't remember when and where the last time was but it's probably been at least 5 years ago.
 

IronWing

No Lifer
Jul 20, 2001
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I knew one guy who got killed in one. The door really did hit his butt on the way out.

Seriously, he was an old man coming out of the hospital and the powered revolving door nailed him.
 

Fir

Senior member
Jan 15, 2010
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So where's the guy saying, "Hold my beer"?

That could break a man's arm easy if they were dumb enough to stick in in there!
Those doors have bolts you step on that go into the floor to lock them in place and they usually put a sign up that reads out of order. But if a thunderstorm blows up suddenly, those suckers will spin up fast. Sometimes they shatter or people foolishly make a dash for it and get owned, majorly. Stupid is, stupid does. ;)
 

Red Squirrel

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May 24, 2003
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I do recall a few times as a kid, probably when we were vacationing down south in Toronto area, but memory is pretty far so don't remember for sure. We don't have them anywhere here, and I don't imagine they are very efficient compared to normal open/close door that have a tighter seal all around.

They do look fun though.
 

skull

Platinum Member
Jun 5, 2000
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I do recall a few times as a kid, probably when we were vacationing down south in Toronto area, but memory is pretty far so don't remember for sure. We don't have them anywhere here, and I don't imagine they are very efficient compared to normal open/close door that have a tighter seal all around.

They do look fun though.

The whole point is they are more efficient, big buildings run positive pressure, a normal door lets way more air blast out, where a revolving door is shut again by the time your in, so it only lets in the amount of air thats between the two panes.
 
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Red Squirrel

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May 24, 2003
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The whole point is they are more efficient, big buildings run positive pressure, a normal door lets way more air blast out, where a revolving door is shut again by the time your in, so it only lets in the amount of air thats between the two panes.

That's assuming the seals are 100% airtight though. A seal that continuously has to rub or slide on a surface is very hard to keep intact. Garage doors, sliding doors, etc also suffer from the same problem.
 

skull

Platinum Member
Jun 5, 2000
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That's assuming the seals are 100% airtight though. A seal that continuously has to rub or slide on a surface is very hard to keep intact. Garage doors, sliding doors, etc also suffer from the same problem.

You could say they same thing about a regular doors seals going bad and since you haven't seen one since you were a kid you don't remember they have some serious seals on them.
 

gorcorps

aka Brandon
Jul 18, 2004
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That's assuming the seals are 100% airtight though. A seal that continuously has to rub or slide on a surface is very hard to keep intact. Garage doors, sliding doors, etc also suffer from the same problem.

The seals are designed for constant wear like that. They're not perfect, but they're way better than a traditional door that gets opened entirely every time somebody comes in or out. These are used in high traffic areas that see hundreds or thousands of people come in and out in a day, so the savings that come from not having traditional doors trumps the little leaks you get from a revolving door seal.
 

zinfamous

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Jul 12, 2006
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That's assuming the seals are 100% airtight though. A seal that continuously has to rub or slide on a surface is very hard to keep intact. Garage doors, sliding doors, etc also suffer from the same problem.

If they weren't more efficient, then the design would have been abandoned some time over the last 100 years or so, where they have become more or less a requirement in large buildings.
 

GrumpyMan

Diamond Member
May 14, 2001
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I've noticed, at least here in Houston, buildings are using Star Trek type doors instead, and at malls.
 

Muse

Lifer
Jul 11, 2001
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Some of the greatest movie gags involve revolving doors.

They are a brilliant innovation, preventing cool or hot air escaping an AC controlled interior, also keeping out polluted air.

Hint: If you aren't used to them, keep close to the surface in front of you as you progress through it all the way to egress and you shouldn't have any trouble. And try not to go too darn fast... i.e. don't push too hard, get up to a comfortable speed (not too fast) and go at the same angular velocity as the revolving door and there's no problem.
 
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paperfist

Diamond Member
Nov 30, 2000
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That's assuming the seals are 100% airtight though. A seal that continuously has to rub or slide on a surface is very hard to keep intact. Garage doors, sliding doors, etc also suffer from the same problem.

The new ones have pulsating magnetic fields that don't require oil or re-alignment.

Yeah just don't try to pass through during a wind storm!


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