Interesting to know that the original OTIS machinery from the early 70's was advanced enough to detect when the tower swayed enough to require reduced travel speed of the elevator. Awesome!
Wonder how this system.llayed part when south tower got hit it swayed feet beyond its capacity in sway. There is a video out there showing the tower away more than its engineered design yawing.
@@tylerdactyl3052 A lot of sway tech being used today in the new "sliver" buildings! Someone I know is involved with the communication systems used in monitoring these installations.
@@lifeisamatrix5960 That would explain why people reported lifts to open even far after the impacts! I think it's in one of these documentaries the French brothers filmed. That a lift opens and people came out. Wonder if they were stuck for so long because of that?
@Gaming York Roko Camaj very much did operate window washing machines from the ROOF level of the towers. He was last known to be on 105 floor of the South Tower on 9/11 and did not escape.
my dad was the foreman for otis on tower b, his knockname was DOC i remember going to the job site when i was a kid,he got me in the trade and i have been a mechanic for 29 years to date,
Mechanic Bill Graff does a great job of explaining some of the technical issues they were experiencing at the time and then my Video camera battery went dead when we were in the pit. Mike Byrnes, I do have some other video's of elevators I will post at a later time
Thank you for providing footage on these elevators, I've always been interested what these elevators were like in the world trade centre before the tragic event in 9/11.
The technology and engineering put into these elevators is super amazing! It truly is amazing how advanced elevators have become over the years, and these are a perfect example when it comes to elevator engineering.
The freight cars 118 floors, the 369 machine with fields removed a man could stand inside, the 17 ft tall 6104 selector had 3600 feet of selector tape made by adams was the best tape,the 5b generators had solid state field control instead of normal 81 control speed switches,Otis had a office with 2 secretaries 7 servicemen 3 repair crews and 2 adjusters full time,the yonkers plant even had its own serviceman, the specs listed here are from memory and could be a little off. great job on sharing the video. also watching the building escalators in the morning commute full of people must have been 10 escalators in a row.. RIP/911
+ElevatorMan5482 ElevExperiencing Productions There is not many people left to work on those old selectors. No office fires and 2 planes dropped those 3 buildings alone like that. Leaving molten steel melted beams and massive beams bent so much with no buckling or tearing!!
a true work of electrical engineering and mechanics. the whole system was based on contactors and relays that were part of the electromechanical memories triggered by push buttons for selecting andadres the cabins together with moving parts that rose and fell in solidarity with the cabin there in the engine room and went unlocking the memories the measure the floors were achieved!
Is that a twin tower machine room or of WTC 3? The sloping column wrapped in SFRM is interesting (5:02). Maybe the hat truss region (floors 108-109, mechanical room). 5:50 - Looks like the main freight car, Car #50, if one notice the enormous number of floor select buttons. Car #50 in WTC 1 & 2 was the only elevator which went all the way up from B6 to 110th floor (shaft), serviced almost every floor (B6-108). I'm counting 118 buttons on that panel.
This is AWESOME!! There seems to be confusion about modernization. Ace Elevator was on scene at the time of the attacks and the project was in process. This was a long project. You have to remember there were 99 elevators in each tower or a total of 198 elevators!! There were almost as many elevators in those two buildings as in all of my home of Duluth, MN. I can think of 163 downtown, 27 at UMD, 9 at CSS, and there are dozens of midrise buildings... Either way, 198 in only 2 bldgs.!!!!
@@tkefan29 There absolutely were 99 cars in each tower. There were sky lobbies on 44 and 78. There were 4 local banks of 6 cars each split into zones in each of the 3 sections and the massive shuttle cars that tied everything together. The local banks were stacked on top of each other... Think of the towers as 3 skyscrapers stacked on top of each other and the shuttle cars like subways connecting the buildings. And those towers weren't only TALL, they were BIG! There was an acre of space on each floor of each tower. 250,000 people were in and out of those buildings every day. Check out the elevator description on the top of this pbs page... www.pbs.org/wgbh/nova/wtc/innovation2.html
@@ArikHarv There absolutely were 99 elevators in EACH tower. They didn't all go to the lobby. Three zones of local cars were stacked on top of each other 3 times and the huge express elevators tied everything together with skylobies on 44 and 78. There were 239 elevators in the whole complex (all 7 buildings).
@ 5:00 most likely the 110th floor machine room for the main Car 50 if you compare it with the blueprints. There is also this massive selector (the rotating thing) which indicates that this elevator serves alot of floor´s. Third "proof" is the railing that also had a ladder down to the 109th floor. This is visible in the same Blueprints sheet aswell (Tower Section C).
Yet no elevators where found in ground zero. They simply vanished. I’m sorry but anybody with at least a middle school education should be able to that it’s impossible for a fire alone to completely annihilate all of these elevators and everything else inside.
You can't even pretend to pass as a smart person. No one wants to hear your dumb conspiracy theories. Make a channel for blondes that go searching for WTC elevator parts.
@@dritemolawzbks8574The absence of large ferrous based components is recorded. NIST report appendix C covers eutectic corrosion briefly The evidence exists and speaks for itself when enough people have died. The lslamic terrorist conspiracy theory is inconsistent with the evidence
Random question but do you have any more pics/video of floors 108-110? Either tower finished or during construction. Or if not could you please tell me what you know about them? Thanks
I just watched a movie called "The Walk." They supposedly had Otis Touch-Sensitive fixtures before they were modded. As for the model itself, I don't know the name for it especially since it is from the 70's.
With all respect your grandfather could have given a lot of information probably to the doubts of 9/11. Life has changed anyway to worse since 9/11 for the whole humanity I think. No recovery in sight. More taxes, things more expensive etc. Wow Dover I came here because of someone called Aaron Dover. What a coincidence.ruclips.net/video/Cx17RJSWCmA/видео.html. But after watching this vid I know a lift was for all floors, so it's just conspiracy theory I guess.
Are you stating that you suspect that the lslamic terrorist conspiracy theory is inconsistent with the evidence, or recommending their services for elevator maintenance 🤔
Me too as well maybe 1980 people keep saying the yr 73 are 75 but people forget the antenna didn't get added on top of the roof of the twin towers until 78
you can see that the vista hotel (which was later renamed the Marriott) was being built. the top two or three stories are covered in a protective sheet. construction started march 1979, and was completed april 1981. id say welll after '75.
Wow just seeing this for the first time that’s some selector I was an Otis engineer for 30 + years from a long line of Otis engineers in the uk never seen anything like that
I believe each tower had 23 shuttle elevators (the big, high-speed ones) and many more local bank elevators to reach the floors that did not have the big elevator lobbies (I do not remember what floors had them).
@@johncantwell8216each tower had 99 elevators (not combined but each). The lower sky lobby was 43-44. The upper sky lobby was 78-79. Those two lobbies were serviced by express elevators and then local elevators took you to your floor from there. Zone 1 was from the main lobby up to 40. Zone 1Locals were boarded in the main lobby. Zone 2 locals ran from 43 to 75 and were boarded on 43 Zone 3 locals ran from 78 to 105 and were boarded on 78. I may be off a floor or two but you get the picture. 106 and 107 were serviced by their own express elevators. There were multiple freight/service elevators. One freight elevator went from the bottom basement floor (b6 I think) all the way to 110 if I remember right. That was the only elevator in each tower that could stop on every floor in the towers.
Where I live in Texas,used to be a lot of Dover & Otis elevators & Yes,since my early teenage years,born in 1972,I've been in several elevator equipment rooms. I've seen mostly some Otis 6850 selectors as well as Otis 6830's & some elevators made by American Elevators as as some Hunter Hayes,Esco & Westinghouse elevators. The Orleans building in Beaumont,TX has three Westinghouse gearless Selectomatic elevators,but with three Otis 77(type,not year) gearless hoist motors. The Otis 77's are smaller than the Otis 339's & like the 339's are also DC. I've also seen some Otis GA type generators as well. There is another building in Beaumont called the Goodhue with three gearless elevators which the last time I was there,was upgraded by Kone,but has three General Electric(yes,GE) gearless elevator hoist motors. Another thing,I've also seen the Dover horizontal selectors,which have a horizontal moving carriage,similar to a Seeburg jukebox.
When was this filmed? He said its very accurate but obsolete but accurate. So they installed obsolete units from the start? Or is this video more recent?
So within 20 years they were already saying they are obsolete? Man, how can they find a solution for that?! Bomb in them in 93? No that didn't work. Think bigger! There we go! And better pull building 7 while we're at it.
The upgrade was scheduled for completion in 2002 I believe. Amazing how no expense whatsoever was spared for these beyond scifi dieselpunk controls in 1973, but the towers had no sprinklers and no concrete encased cores or stairs. Why save money there?
At around 6:30 an SCR drive is mentioned, and at 7:40 the mechanic talks about the MG sets. I wonder if he meant to say the SCR control is used for regulation of the generator field current.
In the first few minutes, the selector of an express lift appears to be shown. You can only see the cake plates for the floor approach at the top and bottom of the selector. What is the relationship between the length of the selector and the actual travel distance of the lift cabin? I have the impression that there is a gear ratio here to make the selector smaller.
4:50 "Look at the camera!" "EH?!" "okay" I'm starting to think that today's old folks don't act this way because they grew old, but just because that's just how they were lol
Для русских переводить лениво, так как слышно плохо, но вот вам краткие технические данные: Capacity (lbs.): 10,000 Г/п ~4,5 тонны Speed (fpm): 1,600 Скорость ~8 м/с Travel in Feet: 1,350 Высота подъёма ~411 м Hoist Motor: 339 HT 52,000 (lbs.) Двигло - безредукторный 339 HT (23,5 тонны) Horsepower: 350 Мощность 350 условных лошадей Generator (Original): 275kW 10,000 (lbs.) Генератор (ибо частотники были не в моде) 275 кВ Roping: 1:1 double wrap кинематическая схема безблочная, но с двойным обхватом КВШ Hoist Ropes: 13/16" Основные канаты 20 мм Comp Ropes: 1-1/2" Компенсирующие - до 25 мм Safety: Duplex wedge clamp (car and counterweight) Безопасность: дуплексные клиновые ловители на кабине и противовесе Cab (Platform) size: 7'3" X 13'3" Площадь кабины 2,2 x 4 м
The controller which powers the MG set is three phase power yes each phase has it's own transformer from the utility company three hot conductors Black, Red, Blue, are the most common. As for the amperage and size of the conductors depends on low long the run is and the HP current draw of the motor under full load/starting load. The amperage draw can vary with a DC traction machine either with an MG set or Transformer DC Drive.
@@TheTheo58 what is the amperage draw of this motor and what is the voltage is motor 3 phase and for up and down a relay reverse 2 legs of the 3 phase and is all the eleavators on a separate transformer. To prevent voltage drop. On every thing in the buildings computer compressor for air conditioning lightning
Am thinking the those elevator Coils , would have to have shown up at ground zero , a bit mangled but not in pieces or even less than that " Pulverised " 🤔
The traction motors are DC powered by an MG set (Motor Generator) most DC traction machines are around 480V DC however this one was probably a higher voltage and an educated guess over 150 amps of current plus/minus. Three Phase motors are AC as are single phase. 3 Phase induction motor would have been used to turn the DC generator which powers the hoist motor.
@@Tigrou7777 thanks what is the voltage and amperage draw what amp breaker would supply the motor in the video and are they powered by a separate transformer so they dont draw off the ones powering lights outlets
@David Berquist I have found the following info for 339HT (it came from a guide from Mersen company, they sell carbon brushes parts for elevators) : 339HT 232HP MOTOR 390V 445A 339HT 275HP MOTOR 455V 445A 339HT 290HP MOTOR 485V 445A
At that time, in the early '70's, similar control hardware was being used in industry for sequencing process control systems to make foods, vitamins, etc. The devices were called drum stepping switches. I was involved in a project in the late '90's to replace such a system with PLC's (programmable controllers). The original system functioned for about 25 years.
I am curious to understand this technology totally archaic today ... ! About this floor selector (this very strange device today), If I understood correctly, it's role is to indicate to the main lift controller, the exact position of the car in the cage, but without using any sensors in this cage, without any more contact with it ? Correct ? It is like a mechanical calculator which give virtually the car position ? Aditionnaly, does it play a role in speed regulation by itself with its own contacts (cruising speed and slowing down when arrived at the floor) or is it managed by the controller ? Thanks.
![FendiDa Rappa - Clock Dat ft. Shamar Marco [Official Music Video]](http://i.ytimg.com/vi/3NBU8KHdxYY/mqdefault.jpg)
Interesting to know that the original OTIS machinery from the early 70's was advanced enough to detect when the tower swayed enough to require reduced travel speed of the elevator. Awesome!
Wonder how this system.llayed part when south tower got hit it swayed feet beyond its capacity in sway. There is a video out there showing the tower away more than its engineered design yawing.
Same sway tech in our CN tower in Toronto as well as same era.
Awwww Otis good make
@@tylerdactyl3052 A lot of sway tech being used today in the new "sliver" buildings! Someone I know is involved with the communication systems used in monitoring these installations.
@@lifeisamatrix5960 That would explain why people reported lifts to open even far after the impacts! I think it's in one of these documentaries the French brothers filmed. That a lift opens and people came out. Wonder if they were stuck for so long because of that?
Everyone was so proud working there at WTC. The window washer. The elevator staff. Bow my head to such great workers
@Gaming York Well then the Guy who operated the Machines gosh 🙄
@Gaming York Roko Camaj very much did operate window washing machines from the ROOF level of the towers. He was last known to be on 105 floor of the South Tower on 9/11 and did not escape.
my dad was the foremen for otis on tower B, i remeber going there as a kid riding on the elev to the top. fast elev,
my dad was the foreman for otis on tower b, his knockname was DOC i remember going to the job site when i was a kid,he got me in the trade and i have been a mechanic for 29 years to date,
39 years boss? Hope life is treating you alright 🤙✌️
This video is a historical document. Gigantic elevator motors!
The weight of dumpster trucks
Mechanic Bill Graff does a great job of explaining some of the technical issues they were experiencing at the time and then my Video camera battery went dead when we were in the pit.
Mike Byrnes,
I do have some other video's of elevators I will post at a later time
Thank you for providing footage on these elevators, I've always been interested what these elevators were like in the world trade centre before the tragic event in 9/11.
Dover elevator was bought by thyssen krupp
Amazing seeing an all analog elevator.
The technology and engineering put into these elevators is super amazing! It truly is amazing how advanced elevators have become over the years, and these are a perfect example when it comes to elevator engineering.
The freight cars 118 floors, the 369 machine with fields removed a man could stand inside, the 17 ft tall 6104 selector had 3600 feet of selector tape made by adams was the best tape,the 5b generators had solid state field control instead of normal 81 control speed switches,Otis had a office with 2 secretaries 7 servicemen 3 repair crews and 2 adjusters full time,the yonkers plant even had its own serviceman, the specs listed here are from memory and could be a little off. great job on sharing the video. also watching the building escalators in the morning commute full of people must have been 10 escalators in a row.. RIP/911
I would say "Nikolai Tesla Tower" for us - military in the twin - towers.
This guy elevators!
What a SHAME this doesn't exist anymore!
Thankfully the new tower has thyssenkrupp!
Elevating Oregon since 2015 The old wtc was better in my opinion
+ElevatorMan5482 ElevExperiencing Productions There is not many people left to work on those old selectors. No office fires and 2 planes dropped those 3 buildings alone like that. Leaving molten steel melted beams and massive beams bent so much with no buckling or tearing!!
+ElevatorMan5482 ElevExperiencing Productions. were the wtc elevators otis
Bossman19 ! Really? did you even watch the video? It clearly gives you the answer! 1:24
a true work of electrical engineering and mechanics. the whole system was based on contactors and relays that were part of the electromechanical memories triggered by push buttons for selecting andadres the cabins together with moving parts that rose and fell in solidarity with the cabin there in the engine room and went unlocking the memories the measure the floors were achieved!
Is that a twin tower machine room or of WTC 3?
The sloping column wrapped in SFRM is interesting (5:02). Maybe the hat truss region (floors 108-109, mechanical room).
5:50 - Looks like the main freight car, Car #50, if one notice the enormous number of floor select buttons. Car #50 in WTC 1 & 2 was the only elevator which went all the way up from B6 to 110th floor (shaft), serviced almost every floor (B6-108).
I'm counting 118 buttons on that panel.
Absolutely EXCELLENT video and love those massive old otis selectors
Although I wish he showed the mg set
“Stand ovadare where I get you in da pitcha...” I miss New York! :)
N dawnt geht hawrt. Then he touches the assembly lol
This is AWESOME!! There seems to be confusion about modernization. Ace Elevator was on scene at the time of the attacks and the project was in process. This was a long project. You have to remember there were 99 elevators in each tower or a total of 198 elevators!! There were almost as many elevators in those two buildings as in all of my home of Duluth, MN. I can think of 163 downtown, 27 at UMD, 9 at CSS, and there are dozens of midrise buildings... Either way, 198 in only 2 bldgs.!!!!
I think they meant 99 total, for all the buildings.
@@MartenFerret That wouldn't be correct though. There were 99 elevators in each tower.
That seems like a lot for a high-rise building but I suppose that's possible.
@@tkefan29 There absolutely were 99 cars in each tower. There were sky lobbies on 44 and 78. There were 4 local banks of 6 cars each split into zones in each of the 3 sections and the massive shuttle cars that tied everything together. The local banks were stacked on top of each other... Think of the towers as 3 skyscrapers stacked on top of each other and the shuttle cars like subways connecting the buildings. And those towers weren't only TALL, they were BIG! There was an acre of space on each floor of each tower. 250,000 people were in and out of those buildings every day. Check out the elevator description on the top of this pbs page... www.pbs.org/wgbh/nova/wtc/innovation2.html
@@ArikHarv There absolutely were 99 elevators in EACH tower. They didn't all go to the lobby. Three zones of local cars were stacked on top of each other 3 times and the huge express elevators tied everything together with skylobies on 44 and 78. There were 239 elevators in the whole complex (all 7 buildings).
@ 5:00 most likely the 110th floor machine room for the main Car 50 if you compare it with the blueprints. There is also this massive selector (the rotating thing) which indicates that this elevator serves alot of floor´s. Third "proof" is the railing that also had a ladder down to the 109th floor. This is visible in the same Blueprints sheet aswell (Tower Section C).
THAT FLOOR SELECTOR IS HUGE - I would also love to see the dispatcher.
6:09 That's seriously a lot of floor buttons. And that selector is huge!
Imagine a world without men
@@eddiew2325 Imagine a world without irrelevant comments
Yet no elevators where found in ground zero. They simply vanished. I’m sorry but anybody with at least a middle school education should be able to that it’s impossible for a fire alone to completely annihilate all of these elevators and everything else inside.
You can't even pretend to pass as a smart person. No one wants to hear your dumb conspiracy theories. Make a channel for blondes that go searching for WTC elevator parts.
@@dritemolawzbks8574The absence of large ferrous based components is recorded.
NIST report appendix C covers eutectic corrosion briefly
The evidence exists and speaks for itself when enough people have died.
The lslamic terrorist conspiracy theory is inconsistent with the evidence
Those elevators must've been very smooth...
Wauw I really like these old otis floor selectors! RIP 9/11
man thats a big selector..respect!
My grandfather helped install those machines. Was hoping to maybe see him in this video but unfortunately not. Thanks for the upload!!!
4th year apprentice here... Holy shit that selector is unlike anything I've ever seen.
It's a shame that Otis didn't get to put the elevators in for
my pops was foremen for otis on tower b back in the day his nick name was DOC. any body remember him first name was donald
Random question but do you have any more pics/video of floors 108-110? Either tower finished or during construction. Or if not could you please tell me what you know about them? Thanks
How big of a job is it to replace the cable and how often does it need to be changed what is motor voltage and amprage rating thanks
I just watched a movie called "The Walk." They supposedly had Otis Touch-Sensitive fixtures before they were modded. As for the model itself, I don't know the name for it especially since it is from the 70's.
Great vid. RIP all those liftys that didnt survive that bullshit
Lifty from Sydney
すごい。
The difference between 140m and 6104ay was the door zone contacts on the extra cam attached to the pie plate.
My grandfather Paul Mortensen worked on this project for Otis. My mom went to the top when she was little. He never lived to see 9/11 though.
With all respect your grandfather could have given a lot of information probably to the doubts of 9/11. Life has changed anyway to worse since 9/11 for the whole humanity I think. No recovery in sight. More taxes, things more expensive etc. Wow Dover I came here because of someone called Aaron Dover. What a coincidence.ruclips.net/video/Cx17RJSWCmA/видео.html. But after watching this vid I know a lift was for all floors, so it's just conspiracy theory I guess.
@@2.3_44XD-- That video you linked has been deleted.
ACE ELEVATOR COMPANY 💥
Are you stating that you suspect that the lslamic terrorist conspiracy theory is inconsistent with the evidence, or recommending their services for elevator maintenance 🤔
they are, Otis pie plates. I would have hated to be doing floor stops in a building that had that many floors.
antzfreshwhip1 I know daz right! 😜
Oh....so manny floors, okay ....
Am I correct this video was shot after 1975? The Otis mechanic is seen with a portable Motorola radio which came out in April 1975
I think it was 1980ish.
Me too as well maybe 1980 people keep saying the yr 73 are 75 but people forget the antenna didn't get added on top of the roof of the twin towers until 78
you can see that the vista hotel (which was later renamed the Marriott) was being built. the top two or three stories are covered in a protective sheet. construction started march 1979, and was completed april 1981. id say welll after '75.
Wow just seeing this for the first time that’s some selector I was an Otis engineer for 30 + years from a long line of Otis engineers in the uk never seen anything like that
26 Ton Machine, one of them! 256 elevators where in the entire complex. I don’t know how much in each tower, but this weight alone is impressive.
I believe each tower had 23 shuttle elevators (the big, high-speed ones) and many more local bank elevators to reach the floors that did not have the big elevator lobbies (I do not remember what floors had them).
Fortunately they didn't hit the ground before disintegration
@@johncantwell8216each tower had 99 elevators (not combined but each). The lower sky lobby was 43-44. The upper sky lobby was 78-79. Those two lobbies were serviced by express elevators and then local elevators took you to your floor from there. Zone 1 was from the main lobby up to 40. Zone 1Locals were boarded in the main lobby. Zone 2 locals ran from 43 to 75 and were boarded on 43 Zone 3 locals ran from 78 to 105 and were boarded on 78. I may be off a floor or two but you get the picture. 106 and 107 were serviced by their own express elevators. There were multiple freight/service elevators. One freight elevator went from the bottom basement floor (b6 I think) all the way to 110 if I remember right. That was the only elevator in each tower that could stop on every floor in the towers.
26 ton is NOT the weight of the machine...it is the lifting capacity, ropes/total mass, I believe this is so
Where I live in Texas,used to be a lot of Dover & Otis elevators & Yes,since my early teenage years,born in 1972,I've been in several elevator equipment rooms. I've seen mostly some Otis 6850 selectors as well as Otis 6830's & some elevators made by American Elevators as as some Hunter Hayes,Esco & Westinghouse elevators.
The Orleans building in Beaumont,TX has three Westinghouse gearless Selectomatic elevators,but with three Otis 77(type,not year) gearless hoist motors. The Otis 77's are smaller than the Otis 339's & like the 339's are also DC. I've also seen some Otis GA type generators as well. There is another building in Beaumont called the Goodhue with three gearless elevators which the last time I was there,was upgraded by Kone,but has three General Electric(yes,GE) gearless elevator hoist motors. Another thing,I've also seen the Dover horizontal selectors,which have a horizontal moving carriage,similar to a Seeburg jukebox.
Seeburg Audiomation!
"Heeeey, I'm workin' here!"
- elevator guy
What is the voltage of the motor and is the lift room on it's own transformer and what is the amperage draw on each motor are they 3 phase
Is gone now :(
911
I think one of those elevator motors are in the 9/11 Museum
Awesome I'd I only knew what I was looking at
I'm the best elevator mechanic in NY and nj and my company is second to none. EMPIRE ELEVATOR FOR LIFE fuck local 1 and local 3 non union all day
+Sean Mccarthy sean you suck and your company blows
Six years later and you're still a boot licking scab.
Like an old Rowe/AMI jukebox but for people. And way bigger. So interesting.
That is not a 6850 selector.
It's a140M
That building well my Mom worked in the South tower always freaked me out Erie feeling
I just drank nine beers and I was still surprised by the license plate on the Buick
When was this filmed? He said its very accurate but obsolete but accurate. So they installed obsolete units from the start? Or is this video more recent?
The buildings were designed in the 1960s and this video is most likely from the mid to late 80s.
So within 20 years they were already saying they are obsolete? Man, how can they find a solution for that?! Bomb in them in 93? No that didn't work. Think bigger! There we go! And better pull building 7 while we're at it.
Those elevators were fast and smooth..got us to the observation deck..until we had to take the escalator to the roof😺
Anybody know if any WTC freight elevator footage exists?
Idk
If the hotel is just being finished, this must be late 1980?
Was this the original selector equipment that was still used up until 9/11. Or had it been upgraded with micrprocessor.
The upgrade was scheduled for completion in 2002 I believe. Amazing how no expense whatsoever was spared for these beyond scifi dieselpunk controls in 1973, but the towers had no sprinklers and no concrete encased cores or stairs.
Why save money there?
Felice Graziano Sprinklers were added after the 1975 North Tower fire.
@@animegamingdude yes your right
It's looking like 1975 this film
12:50 LOL!!!! That’s too funny!
The last couple of minutes were something else.
At around 6:30 an SCR drive is mentioned, and at 7:40 the mechanic talks about the MG sets. I wonder if he meant to say the SCR control is used for regulation of the generator field current.
In the first few minutes, the selector of an express lift appears to be shown. You can only see the cake plates for the floor approach at the top and bottom of the selector.
What is the relationship between the length of the selector and the actual travel distance of the lift cabin? I have the impression that there is a gear ratio here to make the selector smaller.
@MrLiftdude How's the pay as an elevator tech? avg annual income? Pardon my curiosity.
Good
wow some selector that ide have a nervo in front of it
Wish the video cameras of that day had shown better quality pictures!
What year was this video filmed?
Before 9/11/2001
@@elevatortoiletandtransitfa9258Probably
Tecnologia eccellente ed affascinante, i miei ascensori preferiti gearle in cc.! Grandi ingegneri e tecnici lavoratori !
Are there any similar to this still in existence?
There are still plenty of similar ones just none that are this tall.
someone is griping that this didnt use electronic controls? this was 1973!!
4:50
"Look at the camera!"
"EH?!"
"okay"
I'm starting to think that today's old folks don't act this way because they grew old, but just because that's just how they were lol
Для русских переводить лениво, так как слышно плохо, но вот вам краткие технические данные:
Capacity (lbs.): 10,000
Г/п ~4,5 тонны
Speed (fpm): 1,600
Скорость ~8 м/с
Travel in Feet: 1,350
Высота подъёма ~411 м
Hoist Motor: 339 HT 52,000 (lbs.)
Двигло - безредукторный 339 HT (23,5 тонны)
Horsepower: 350
Мощность 350 условных лошадей
Generator (Original): 275kW 10,000 (lbs.)
Генератор (ибо частотники были не в моде) 275 кВ
Roping: 1:1 double wrap
кинематическая схема безблочная, но с двойным обхватом КВШ
Hoist Ropes: 13/16"
Основные канаты 20 мм
Comp Ropes: 1-1/2"
Компенсирующие - до 25 мм
Safety: Duplex wedge clamp (car and counterweight)
Безопасность: дуплексные клиновые ловители на кабине и противовесе
Cab (Platform) size: 7'3" X 13'3"
Площадь кабины 2,2 x 4 м
That large selector device. Is that is use today? Does that determine where is elevator is going?
it's tells what floor the car is at there still in use on old elevators
Those have largely been replaced by computers
@@gunplow I know they automated the old elevators. I wonder who came up with all that.
Chupa Shindler kkkkk
8:16
+Felipe Caveirinha kkkkkkkkk a Otis é foda mesmo de tamanha grandeza, eterno sangue azul é nois kkk
Filmed in the 80s ?
Was this taken in the pit of the shaft?
why is this shot using cctv camera?
Imagine a free fall in one of those elevators. Scary
The free fall from the upper levels, without the elevators, were just as terrifying.
wow when was this filmed and who filmed it
What is the voltage and amprige draw of the motor
Has anyone heard about a Big Bertha valve in WTC?
I have but am curious where the source was dymek?
What is that part at the end about?
My favorite elevators.
Awesome!
how many amp circuit is the motor on are all of them the same are they 480 three phase do they require there own transformer
The controller which powers the MG set is three phase power yes each phase has it's own transformer from the utility company three hot conductors Black, Red, Blue, are the most common. As for the amperage and size of the conductors depends on low long the run is and the HP current draw of the motor under full load/starting load. The amperage draw can vary with a DC traction machine either with an MG set or Transformer DC Drive.
@@TheTheo58 what is the amperage draw of this motor and what is the voltage is motor 3 phase and for up and down a relay reverse 2 legs of the 3 phase and is all the eleavators on a separate transformer. To prevent voltage drop. On every thing in the buildings computer compressor for air conditioning lightning
That was cool looking!
Nice
where were these coils of fallen cable after you-know-what?
practically impossible to demolish literally miles of 1" steel cable.
Where was this noticeable in wreckage?
Am thinking the those elevator Coils , would have to have shown up at ground zero , a bit mangled but not in pieces or even less than that " Pulverised " 🤔
Floor 81? Otis 339 HT?
Is that Frank and Eddie
Did otis install all of the elevators?
Yes
That must of been a pretty cool.
wot for it hit
the new building
oh...!!! Bravo...
I wonder if these elevators stayed the same until the attacks on 9/11?
Unsure how they'd change them.
I heard they were being modernized at the time of the attack.
@@tkefan29 They are rare, but there are photos of some of the recovered elevator motors out there.
There were 2 modernizations I think
Yes the only way to access the core columns was through the elevator shafts perfect time to hook up some charges working with or as "elevator crews"
what is the voltage of the motor and how many amps does it draw are they 3 phase or single phase
The traction motors are DC powered by an MG set (Motor Generator) most DC traction machines are around 480V DC however this one was probably a higher voltage and an educated guess over 150 amps of current plus/minus. Three Phase motors are AC as are single phase. 3 Phase induction motor would have been used to turn the DC generator which powers the hoist motor.
Those are DC powered. The exact model name is Otis 339HT.
@@Tigrou7777 thanks what is the voltage and amperage draw what amp breaker would supply the motor in the video and are they powered by a separate transformer so they dont draw off the ones powering lights outlets
@David Berquist I have found the following info for 339HT (it came from a guide from Mersen company, they sell carbon brushes parts for elevators) :
339HT 232HP MOTOR 390V 445A
339HT 275HP MOTOR 455V 445A
339HT 290HP MOTOR 485V 445A
What is the mains voltage in USA?
Elevators!
are all the motors on the top
Yes, as is standard for high-rise traction lifts like this
all topdrive direct traction
Why did ACE elevator win the contract to modernize over Otis?
That's when dumb cheep pricks bought the building.
because ace were the front company for a demolition team
geofrancis2001 exactly
Bet you're sorry you asked THAT question aren't ya!
To cut cost going a cheaper route
Really, you couldn't make an electronic based floor selector and had to reliey on that huge monstrosity?
This is from the early-70s.
Pretty cool engineering and impressive for the time if you think about it.
At that time, in the early '70's, similar control hardware was being used in industry for sequencing process control systems to make foods, vitamins, etc. The devices were called drum stepping switches. I was involved in a project in the late '90's to replace such a system with PLC's (programmable controllers). The original system functioned for about 25 years.
When did you filmed this?
It looks like 1974/75 just after twins completion , work on tweaking things & Installations of many kinds
@@ScotsPipe late 1980/early 1981, the Vista hotel (3 WTC) is nearing completion at the start of the video, it opened in 1981.
@@kitt321 agreed
The antenna on the roof didn't get added until 78 so its not 1973 are 75
I am curious to understand this technology totally archaic today ... !
About this floor selector (this very strange device today), If I understood correctly, it's role is to indicate to the main lift controller, the exact position of the car in the cage, but without using any sensors in this cage, without any more contact with it ? Correct ? It is like a mechanical calculator which give virtually the car position ?
Aditionnaly, does it play a role in speed regulation by itself with its own contacts (cruising speed and slowing down when arrived at the floor) or is it managed by the controller ? Thanks.
Rubbish camera
It's not the most professional video & it's from the early-80s.