RARE duplex 'Express Lift' machines - how it works with animations

As a building electrician in a large complex, I used to watch the relay panel of our 1950's Otis controller. By watching and listening I was able to determine the purpose of the majority of them. Most of the other lifts were modernized and did not have the open racks. Great video!

I was an elevator mechanic for 40 years. You explained this really well!

Since I found this channel my wife said I've become obsessed with lifts! She said it's odd on so many levels 🤦❗ Great work keep it up.

I simply love the level of details, examinations and descriptions in these videos. I often nerd things in to low level details myself, but I would never have the stamina to produce the content you do. Thank you SO MUCH, it's awesome!

The attention to detail in the edits alone just got a thumbs up. Moving annotations to match a live shot, such as at 2:38 is something which takes a lot of tweaking, sometimes frame-by-frame.

Designing and building complex electromechanical system like this is a lost art.

Quite amazing how they figured out how to make this complex system work with just some relays, inductors and motors.

I live in the US and have been in hundreds of buildings and high-rises and mechanical rooms nationwide as an inspector and I have to say my favorite period of building is 1967-1973. There is just something about era, they all look and smell the same (those that are left) and it was an era of brute engineering force with focus being on function rather than form (as it should be). Those long basement corridors are always grungy from the buzz of transformers and motors and fluorescent lighting with magnetic ballasts, the whole basement would resonate at 60Hz and you could feel it. I love those buildings. So many of them were "overbuilt". Once you got into the later '70s, energy efficiency mandates really changed everything about how large buildings were designed and the building guts didn't feel so "raw" anymore.

These animations synced with the real sounds and real videos made me subscribed

Awesome very detailed video with the operation of this interesting lift system. The sounds of the contactors and motors are awesome. The editing of your video must have taken a massive amount of time as you mentioned. Keep up the excellent quality video's . Thanks.

Wow, no wonder automatic elevators were such a major innovation, and human operators were needed before them!

Nice to see an old lift that looks to be well maintained.

Engineering in system like this is impressive, and then i realize, that almost every wear part failure is designed to not cause major problems - this is ridiculous how clever people where in charge of projects like this.

I have always appreciated the work you put into your elevator machine room videos. Thank you so much for uploading them to everyone in You Tube land.

Your attention to detail is excellent, Mr Matt. The time you take to create the videos, then the animations explaining it all is very appreciated.

Beautiful relay logic cabinet. Thank you for sharing this!

The relay logic on these old systems is incredible. I can hardly imagine what it must have looked like in a true high-rise, with more floors than you could count on your fingers and toes. Thanks for the in depth tour of the guts of an old elevator!

Fantastic. It's clear to see how you are learning new editing and graphics techniques as the channel expands. But I'm glad the music hasn't changed - it's perfect.

its insane how such a simple machine is turned into such a complex logic system

I love a classic express. Definitely my favorite. SUPER rare to find any lift with original logic these days, I'm glad to see the logic of this lift in detail. Thank you for this video!