1958 Gearless Traction Otis Elevator Machine Room tour
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Published 2014-12-24
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All Comments (21)
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I watched a Ward Leonard set running an elevator and thought it was one of the most marvelous things I'd seen. To see that motor running at full speed then slow down to a slow crawl was amazing.
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I had 4 of these, but the newer generation that used 1625 vacuum tubes for the directional circuit control LG, LJ XLG and XLJ and HS....and the diode matrix for the hall call circuits. PI plate selectors with the advancer motors.... The generators and the drive motors were absolute beasts... the controllers...maybe not so much, over 40 year career..hundreds of hours keeping it all running... I miss it. I enjoyed what I did and I think I was pretty dam good at it!
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love watching all of the physical machanics of these machines. Computers are cool but to watch all this stuff work like a giant clock. so smooth
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Type B MG sets and pie plate selectors! I still work on this type of equipment in LA! Still using the 2040 touch tubes in the car and still using the glass vacuum tubes at the top of the controller! Still has the original flyball governors! 👏👏👏👏👏👏
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Very nice and impressive old Gearless DC machinery. 175 volts, 141 amps when I read the type plate correctly - so, about 22 KW or 30 HP of power. Great! I love these old DC drives. Sad that this technology now is obsolete and more and more replaced by three-phase AC engines.
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I used to work on a geared version on this unit in San Antonio. Ironclad units. I rarely had issues with it. They knew how to make things last back in the day, that’s for sure! Thanks for sharing.
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It is built only using relays, but it functionality is very similar to modern elevators, powered by microcontrollers, inverters and other electronic stuff. Great machine!
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I love that machine room
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god I love the sound of relays working. You should make an hour video of that on a very busy day.
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These things really are beautiful to watch.
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My father was an elevator operator very briefly. Otis is the best brand by orders of magnitude. Keep running strong!
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True to a degree about the machines. Though incredibly built, those big gearless eventually need to get rewound.The good news is they do it onsite.Way too heavy to send out. We finally lost one about 80years old. The wire insulation deteriorates. You start getting hot spots on the commutator. They also start losing motor fields. DC drives too are becoming a thing of the past. Magnetek or the 12pulse MCE still work well. These days the AC gearless PM motors are the standard.
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Worked on all of those machines over the years.Replaced field coils and white metal bearings on the gearless machines,comm skims and undercutting on site.Those Generators have exciters on the end which otis later modernised and removed.
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It's funny to hear someone trying to explain what they have little clue about in an utterly confident tone. I've been there many times before, too. Lol Nice video, BTW.
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spent a lot of years with those! Back when Otis was built like a tank!
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Really cool vid, thanks for the tour
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Very nice classics!
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Your videos are great andrew
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THAT SOUND! Lovin' it. Footage is great but little too short - want mooooooore! :)
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This video about the elevator and visit to its machinery room is fun to view.Reposted the link thru You Tube so more whom are interested about this can also view.Reposted YT link to facebook too.Enjoy viewing,this is fun!!!Thank You for telling its story!!!
