I know this elevator well, I was also able to see it in real life and I made a short about the machine room. It is a very particular system but it works really well and this elevator (goods lift) is once again proof of the high quality of what Schlieren used to manufacture.
You've seen this one too? Cool! Yes, I've learnt alot about Schlieren and the equipment they used to manufacturer, all bought out by Schindler later on.
You clearly produce the best and most detailed videos when it comes to explaining such details to a large audience, chapeau! The old Schlieren drive system with separate levelling motor is one of the most fascinating feats of lift engineering from the old days and you portrayed it perfectly, showing the special stopping sequence and also just capturing the beauty of this machinery. With the lift you filmed being 10 years older than the one I had a look at, it's interesting to see the differences in the controller over time. Different relays and especially the timers are really fascinating.
05:20 Good demonstration of very nicely set up dashpot / dampers closure control motor contactors . 12:05 surprised to see a Selenium rectifier still waiting to smoke the place out. 15:16 please confirm the function of the mechanism and tie rod. As usual an excellent graphical demonstration, your efforts are much appreciated by us engineers and historians.
Thanks for your comments and I'm really glad that all my editing is welcomed by so many people. 15:16 - the cable on the left is the cab gear - aka, emergency brake. Normal function of a lift governor in the machine room above - If the lift goes too fast, firstly, the power is cut off and it should stop. If it keeps moving and goes even faster, then the last resort is the governor pulls this cable and the under-car brakes grab the guide rails, bringing a falling lift to a stop. The switch you are looking at activates when the under-car brakes are applied. If brake were to apply, then the switch ensures the power is turned off to the lift and motor.
@@mrmattandmrchay Thank you for your detailed explanation. Editing, I can see a lot of planning has gone into the filming, adding the circuit path graphic is unusual as it is a pain in the arse to do but greatly appreciated. Best.
VERY interesting and beautiful lift!!!! I had to replay the motor room portions several times to be able to see all the actions that the motors and clutches did. VERY interesting and unique! What an incredibly well built lift! I love the open car design with only the corners enclosed.... strange and interesting! Thank you for your hard work with all the camera angles and syncing them together. Makes it interesting to watch as usual!
Looking at the thumbnail I already though.. Hey, that looks like something we germans would habe build in the olden days.. and fair enough, seeing that everything is labeled in German I was quite delighted to recognize our way of engineering things back in the day :)
Yep, everything is in German. Did you see the sign at 12:49 - "Schweizerische, WAGONS und AUFZUGEFABRIK A.G. SCHLIEREN - ZURCIH (SCHWEIZ)". I've not looked it up, but gives you some more info.
Love it when there's another MrMattandMrChay clip! Been subscribing for a number of years and the motto "Quality not Quantity" is so true! And I really loved this clip. Amazing how almost everything could be done mechanically before electronics. Somehow I think that we don't really need all that "new" fancy stuff. The more of the old school stuff that gets tossed out, it another piece of engineering, mechanics and art that is lost.
Thank you very much for your kind comments. The detail that I put into these videos is what, I believe, makes my channel unique, and I love it! Yes, it's like, everything you can think of could be done mechanically back before computers, stuff that I love filming!
What a different lift, at the start it looked like some demonstration piece, with the motor room and top floor sitting as it was, then there's that odd little window above the door. Three sides with no doors/walls, does make one really be careful where you stand. And the controller, quite compact compared to others you've visited. Who needs computer/PLC control. All the mechanics looked very clean and well looked after, hopefully it will live many more years.
That is one special lift. Crossways chassis and unusual doors on three sides. The combination of American style doors but without inner doors makes it quite unique. It runs pretty smooth as well.
Yes, it's very special and rare. But I do have another lift, the same design as this one coming soon! And the contactors are even bigger than these ones!
What a MACHINE, the full thing. From lift shaft to motor room and controls, electromechanical all the way. If you have the drawing and half a brain these can be step followed all thru the process right in front of you. That lift will run for as long there are people skilled enough to fix it otherwise it will have to be upgraded because the maintenance company don’t have the skilled personnel to fix it after all the old timers have retired. Modern technology is good too but it doesn’t have the appeal of the old stuff. Brilliant video as ever. Cheers. All the best.
I think you've said it all haha! I also have photos of all the schematics from this lift. Perhaps I'll add them to my next video of a lift like this one, as I have another one of these lifts to upload soon (different building, same design).
A fascinating lift - doors on three sides! No inner doors are a challenge to non certified users. Defietely one of these lifts made before invention of predetermined breaking points. The artistic decorated walls in the upper floor with it's small, wooden window and ladder are marvellous.
Perfect timing. Seven hour holiday drive to Devon first thing tomorrow, so I'll save this until we get there, it'll be something to look forward to with a post-motorway beer. Just know it's going to be good because the detail in these vids is stunning. Thanks for posting Matt.
Yep, even those mechanical timers - could probably replace them with a very simple electronic timer, but the old mechanical ones are still going so why replace them! :)
@@mrmattandmrchay Exactly, and the relays and contactors on this particular elevator look like the kind that if you are having some electrical problems, you just kill power to the elevator and spend some time sanding or cleaning each point.
A very interesting video, showing all the ways things are connected together. I like the electro mechanical design of this lift. Thanks for your work in putting this video together.
Wasn't there another such system that Otis used to do? There was this massive wheel mechanism which used to go around for the slow motor. Very old, from the same era - 1950s. It had a unique name, but can't remember what it was called. Like "super twister" or something lol! Not that, but something like it.
"Auxillary Micro" remember a couple of those in London years ago, brake used to come on into slow speed and the whole brake unit used to spin while the small motor drive main gear. Mad to watch, wish I had a video of it!
Great video, very well made. Amazing that it's still running - imagine trying to service that clutch, or get a replacement for one of those limit switches in the shaft if it failed!
Very neat, also cool to see the more modern control mechanisms that were obviously added over the years. Looks like additional electronics from the 70s/80s and again from the 00s/10s or even more modern. A big mix of everything!
A dandy and unique elevator a clutch system for controlling speed! Has a similar design I saw in another video with the chain drive, and two motors. There is lot more precision engineering with the stop controls in the hoist way on the elevator cab chain linkage to the floor selector. With how far the compensating shaves are places on the cab, a defector sheave is not required on the counterweight side. Plus the two sheaves on the weight. The elevator has been well cared for during the last six decades, still going. It was built to last.
Well, I have another one of these lifts to upload at some point - same design, different location. And the contactors on it are actually much larger than these ones :)
Beautiful machine and obviously well looked after! I noticed at 11:34 the middle slip ring on the main motor is very pitted looking - the other two phases look clean and shiny. Better get the maintenance man to look at that sometime in the next 20 years!
Fascinating. I spent a fair amount of time installing CCTV & Audio in lifts but always found it a bit of a black art. As an electronics engineer for 50 year this and old relay traffic light systems just didn’t make sense.
I'd love to see some old relay traffic light systems! I'll have to do a search, probably all mechanical timers, relays and interlocks (to prevent two lights being green at once). Used to install CCTV in lifts myself, most interesting installation was City Tower in Basinghall street, London, back in the early 2000s.
Now that's interesting, because that's what I thought. HOWEVER...!! The answer is here: th-cam.com/video/87tuIBi2tCE/w-d-xo.htmlsi=yp22x1Hlb7HwFVjp&t=475
I love adding things like this, the finishing touches and 'attention to detail'. Did you know, I exported this video 9 times before I was happy with it!! Everytime, nah, I need more detail here, etc!! I told myself, I have to stop being so critical with my videos then I'll upload more often, but then, wait a minute, perhaps this is what people enjoy! I don't think I can edit it any other way.
@@mrmattandmrchay 9 times? Uff... I'd just be happy watching the preview to be happy with it. Maybe with 1 remake... Wow... I don't need more often. I just need the quality and the sutff you have been giving us. Thank you!
@@mrmattandmrchay Sigh... TH-cam deleted my answer. I'll see if I can recover it. Edit: Nope. It's lost. It was just commenting about how I don't do 9 times and how I don't have patience for that many times and I the the preview of the editor
Main motor looks like slip-ring induction, with set of resistors connecting to slip rings for soft start. Resistors are near corresponding contactors, they turn on step by step. Not quite sure was there a way to use same resistors for slow speed. As I understand it, it would work under load but have almost no effect if lift is going other direction (ie without motor it would actually overspeed going under its own weight or empty lift going up because counter-weight is much heavier). I believe effective speed control using slip-ring motor was achieved in old school hoisting cranes, but it probably required an operator to turn rheostat. For automatic use this 2-motor configuration is probably easier... Good old screw-in fuses, haven't seen them for a while! Also copper oxide rectifier (or is it selenium, still confuse them!) 9:12 - this lift managed to find the Answer to Life, Universe and Everything while doing its job.
Slip ring motor - yes indeed! I researched this a while ago and very interesting to find out about them and how they work. Very interesting comment, enjoyed reading it and thank you.
Wow! Some lifts are a work of art in engineering and rightly deserve to be preserved. We know that one day none of this technology will be around but what a shame to just throw away something proven to work under harsh conditions for modern electronic rubbish designed to fail in time. I would rather trust my life with hard coded logic like this than some easily glitchable electronic controller.
This was probably state of the art back in 1952 and it's lasted all this time. The issue is always, do modern day engineers know how to fix this stuff when it goes wrong! Thanks for the comment
Yes, exactly! And back in the 1950s, most of that stuff would have probably had to have been made specially in a workshop (not 'off the shelf' as everything is now)
These lifts also were not installed for too long as they were not long later made obsolete by using transformers and secondary low voltage rectifiers depending on if the lift was AC or DC. This approach was later further developed on in the 1970s with transistor logic which allowed for the earliest iterations of intelligent levelling which was done with up to seven different levelling speeds that the lift would rapidly move through.
Very interesting comment and thank you. Makes you wonder, if they knew the technology was coming, then would they still have created such an elaborate design. But guess they didn't know.
Very cool lift, a lot of attention to details and very well put together, no wonder its still in service. I wonder about the reliability of a such a mechanical system vs a double winding double speed motor (no idea how its referred in English).
Thanks VEc70R, yes I know what you mean about the double winding. Lots of things that can go wrong, also it would take an engineer that knows about how the lift works, to be able to repair it! Thanks for the comment.
The level of operational detail is superb! Very nice work! How are you able to determine the sequence of operation for obscure lifts? Do you have access to documentation/schematics ?
Yes, I actually photographed the schematics from this lift (when I walk up the stairs, you can see them on the floor outside of the motor room door). I have filmed another lift exactly like this one (same design, different location) so I'll show them when I edit this video. Thank you for your nice comment.
I could see an internal combustion engine being specified as a backup in a circumstance where continued availability of the lift is essential but the electric power is sketchy. Ski lifts are designed that way.
At first I thought this was in the US or Canada because freight elevators with doors that open vertically from the center are common here. However the inside door on one of those is typically a steel mesh that opens upwards.
very nice - I once had the pleasure of 'rebuilding' such an engine room (sounds better than demolishing -_-) Back then you could still replace every single contact in the contactors - extremely durable - but also super dangerous, there was simply no contact protection back then - you had to know what you were doing :) Not like today, where you write on the Iphone that you shouldn't eat it ...
Yes, you have to be very careful what you touch here. Anything metal, easier to assume it's live and don't touch it! For a lift engineer fault finding, must be difficult, especially without drawings (no computerised fault log to diagnose faults).
That's an interesting lift! I remember having seen a video of the motor room of the lift of this type with this clutch before quite a while ago here on TH-cam, but unfortunately I don't remember where. And of course your video is much more detailed and especially shows the whole lift, not only the motor room. This lift is however quite scary indeed, with no inner doors on three sides! I think only in a place like this which is not open to the public a lift like this can survive so long without being modernized or replaced for safety reasons. What's confusing is that while it seems this lift is in an English speaking country (probably the UK as that's where you are located), everything on this lift is in German, even the "operating instructions" and the labeling of the buttons (which seemingly had to be customary made for this lift anyway). It's also a bit confusing for me that there seem to be more buttons than positions on the floor selector. Are these for different doors on the same floor?
@@mrmattandmrchay Well, again, the lifts in the country I live used AC motors and the clutch system as far as the 80s. I guess more modern solutions didn't pass well through the iron curtain.
Marrryat and Scott were using a similar drive in the 1930s they called it Levelectric. Royal Masonic hospital in London had several. All controller by Dewhurst controller
Cool, sounds like another unique and fascinating machine. Express do something similar, actually come to think of it, so did otis (a massive wheel mechanism that rotates - wish I could remember what it was called).
There were some diagrams with this lift, I didn't upload them here. But I do have another video of a lift just like this one (same lift design, different building) coming up. I'll try and include the diagrams in that one.
Yep absolutely, and I suppose if anything broke, it's fairly simple to either repair or replace some of this stuff (someone in his workshop could knock something up!)
Ah, I thought I filmed everything, but not sure that I saw the speed limiter. Although we had an unlimited amount of time to film, this was in an office and the lift was LOUD when travelling!! Everyone there was very kind, but we didn't want to out-stay our welcome! So we kind of had to limit how long we were there for.
OH H*LL TO THE NO.. No cab walls! This thing is like the elevators that sometimes come up in my dreams. Except in my dreams the elevators open and its just black inside and I know if I try to step in the elevator, I am going to fall down the shaft. I haven't had a dream about elevators in awhile now.
It's a freight elevator, why would it need to be modernized? Most of the mechanical room could last quite a bit longer than throwing in a microcontroller and calling it a day. Granted, the motors are probably not all that efficient but, again, this thing is meant to move freight, not people. I guess if it was dire, yes, the freight elevator can move people. That idea of using two motors and a clutch like that seen on a garden tractor is pretty cool though.
with all the old cloth wrapped wire it could be one hungry mouse away from an electrical nightmare. Not from the bite marks but from having to move neighboring wire to gain access to the damage and the insulation starts flaking off
72 years of operation and still counting... that's pure German engineering quality right there! It's interesting though that they did not bother to supply the labels in English!
It‘s made in Zürich, Switzerland… If it was a German Elevator though, it would likely had utilized many of the same electromechanical components as *SIEMENS* was the largest manufacturer for those capacitors, relais, switches, contactors, rectifiers, fuses and more!
Schieren and Schindler seem to label all their relays in a different way to what I'm used to. Yes, and indeed 72 years and still going! It seems that people actually WANT to keep this machinery running - here in the UK, stuff like this would have been replaced a LONG time ago!
I wouldnt mind riding this but for the owners privacy I wont ask for the location and besides where Im from it would be way too expensive to travel out of country
Don't make a habit of begging for likes and subs, yet here we are. Tell me, why even bother putting it in the beginning? I haven't even had the chance to see anything, besides when everyone keeps asking and asking and asking don't you get to the point where you just start hating it with passion?
If you spent 3 months editing a video then maybe you would consider doing the same. This is the SECOND TIME IN 15 YEARS (throughout my 600 videos) where I've verbally mentioned about subbing, hence "I don't make a habit of it". In the end, it's my choice what I put into the video, and believe me, I put a lot of effort into them which I think justifies asking people to CONSIDER liking and subbing. Also - I only added it at the start (after the intro so you've already had a taster) because its the best time as nothing is happening whilst going up the stairs. If I did it later then people would complain that I've put it a busy point in the video :)
@@mrmattandmrchay the only thing I'd consider is using more sponsor block and marking those annoying segments to be skipped and/or muted, this is how much I loathe it.
Without ads and the bits you loathe, there's nothing in it for me. I believe what you are refering to are all the components that go into monetisation and me trying to further my channel? Without it, I wouldn't post ANY videos - the little money I get, justifies all my time in creating the videos. If you hate them so much, then pay for the 'ad free' subscription. Otherwise, me mentioning 'if you wouldn't mind subscribing for just 10 seconds in the video', well, it's there for a reason and I won't be removing it. It's my channel, and I think I deserve it.
@@mrmattandmrchay well, put more then, put a reminder every few minutes, use dumbass titles, especially ones ending in a question, oh and don't forget useless arrows in the thumbnail pointing to obvious things, that'll propel the channel to the stratosphere, become a true slave to the algorithm.
The motor room reveal was mouth watering! What a clean installation and attention to detail!
Love the wire lacing and routing.
haha! Yes, it's a lovely lift and thanks for your kind comments as always
Wire lacing and routing, I leaned that at a telco, now kind of a lost art.
I know this elevator well, I was also able to see it in real life and I made a short about the machine room.
It is a very particular system but it works really well and this elevator (goods lift) is once again proof of the high quality of what Schlieren used to manufacture.
You've seen this one too? Cool! Yes, I've learnt alot about Schlieren and the equipment they used to manufacturer, all bought out by Schindler later on.
A very well maintained lift indeed. Everything is so tidy. Thanks for this comprehensive video.
You clearly produce the best and most detailed videos when it comes to explaining such details to a large audience, chapeau!
The old Schlieren drive system with separate levelling motor is one of the most fascinating feats of lift engineering from the old days and you portrayed it perfectly, showing the special stopping sequence and also just capturing the beauty of this machinery.
With the lift you filmed being 10 years older than the one I had a look at, it's interesting to see the differences in the controller over time. Different relays and especially the timers are really fascinating.
05:20 Good demonstration of very nicely set up dashpot / dampers closure control motor contactors . 12:05 surprised to see a Selenium rectifier still waiting to smoke the place out. 15:16 please confirm the function of the mechanism and tie rod. As usual an excellent graphical demonstration, your efforts are much appreciated by us engineers and historians.
Thanks for your comments and I'm really glad that all my editing is welcomed by so many people. 15:16 - the cable on the left is the cab gear - aka, emergency brake. Normal function of a lift governor in the machine room above - If the lift goes too fast, firstly, the power is cut off and it should stop. If it keeps moving and goes even faster, then the last resort is the governor pulls this cable and the under-car brakes grab the guide rails, bringing a falling lift to a stop. The switch you are looking at activates when the under-car brakes are applied. If brake were to apply, then the switch ensures the power is turned off to the lift and motor.
@@mrmattandmrchay Thank you for your detailed explanation. Editing, I can see a lot of planning has gone into the filming, adding the circuit path graphic is unusual as it is a pain in the arse to do but greatly appreciated. Best.
VERY interesting and beautiful lift!!!!
I had to replay the motor room portions several times to be able to see all the actions that the motors and clutches did. VERY interesting and unique!
What an incredibly well built lift! I love the open car design with only the corners enclosed.... strange and interesting!
Thank you for your hard work with all the camera angles and syncing them together. Makes it interesting to watch as usual!
Thank you very much as usual for your kind comments pomonabill.
CASEY WAKE UP MRMATTANDMRCHAY UPLOADED 🎉🗣️🗣️🗣️🗣️🔥💯
haha, thank you!
Looking at the thumbnail I already though.. Hey, that looks like something we germans would habe build in the olden days.. and fair enough, seeing that everything is labeled in German I was quite delighted to recognize our way of engineering things back in the day :)
Yep, everything is in German. Did you see the sign at 12:49 - "Schweizerische, WAGONS und AUFZUGEFABRIK A.G. SCHLIEREN - ZURCIH (SCHWEIZ)". I've not looked it up, but gives you some more info.
3:39 "Trash only no garbage" What? 🤣
No organic material that rots and stinks.
Trash is like paper, cans, bottles ETC. Garbage is like foodstuff that decomposes.
Love it when there's another MrMattandMrChay clip! Been subscribing for a number of years and the motto "Quality not Quantity" is so true! And I really loved this clip. Amazing how almost everything could be done mechanically before electronics. Somehow I think that we don't really need all that "new" fancy stuff. The more of the old school stuff that gets tossed out, it another piece of engineering, mechanics and art that is lost.
Thank you very much for your kind comments. The detail that I put into these videos is what, I believe, makes my channel unique, and I love it! Yes, it's like, everything you can think of could be done mechanically back before computers, stuff that I love filming!
What an incredibly unique lift. You (two?) never fail to put out an interesting video.
Thank you very much! They may take a while to edit, but worth it in the end.
Now, that's what I call a precise, well thought out construction, which is easy to understand. 12:50 - oh, it's Swiss, that's why :)
Wonder how much time this lift too to commission back in 1952, tweaking, etc. Would love to have been there!
What a different lift, at the start it looked like some demonstration piece, with the motor room and top floor sitting as it was, then there's that odd little window above the door.
Three sides with no doors/walls, does make one really be careful where you stand.
And the controller, quite compact compared to others you've visited. Who needs computer/PLC control.
All the mechanics looked very clean and well looked after, hopefully it will live many more years.
That is one special lift. Crossways chassis and unusual doors on three sides. The combination of American style doors but without inner doors makes it quite unique. It runs pretty smooth as well.
Yes, it's very special and rare. But I do have another lift, the same design as this one coming soon! And the contactors are even bigger than these ones!
wow really neat piece of history and really neat leveling system
Indeed! Very unique and I love filming stuff like this. I have filmed another one of these (same design, different location - coming soon)
What a MACHINE, the full thing. From lift shaft to motor room and controls, electromechanical all the way. If you have the drawing and half a brain these can be step followed all thru the process right in front of you. That lift will run for as long there are people skilled enough to fix it otherwise it will have to be upgraded because the maintenance company don’t have the skilled personnel to fix it after all the old timers have retired. Modern technology is good too but it doesn’t have the appeal of the old stuff. Brilliant video as ever. Cheers. All the best.
I think you've said it all haha! I also have photos of all the schematics from this lift. Perhaps I'll add them to my next video of a lift like this one, as I have another one of these lifts to upload soon (different building, same design).
A fascinating lift - doors on three sides!
No inner doors are a challenge to non certified users. Defietely one of these lifts made before invention of predetermined breaking points.
The artistic decorated walls in the upper floor with it's small, wooden window and ladder are marvellous.
Yes, so many entrances all on different levels. I bet that pushed the designers and commissioning engineers to the limit for this installation!
Perfect timing. Seven hour holiday drive to Devon first thing tomorrow, so I'll save this until we get there, it'll be something to look forward to with a post-motorway beer. Just know it's going to be good because the detail in these vids is stunning. Thanks for posting Matt.
Ah, love these comments. Makes all my time and effort feel worth it! :)
That was a fab video. Top quality once again. One for the best videos playlist!
Thank you very much for your comment, and yes, it's already been added to my best videos playlist
Entirely original machine. No modern contactors whatsoever. Nice!
Yep, even those mechanical timers - could probably replace them with a very simple electronic timer, but the old mechanical ones are still going so why replace them! :)
@@mrmattandmrchay Exactly, and the relays and contactors on this particular elevator look like the kind that if you are having some electrical problems, you just kill power to the elevator and spend some time sanding or cleaning each point.
This is the most interesting design so far.
Certainly is, and I have another of these lifts (different place) to upload at some point.
I shouldn't be surprised if the solution involving the clutch and the slow motor doesn't cost much more than modern solutions, to build and maintain.
marvellous!
thank you!
A very interesting video, showing all the ways things are connected together. I like the electro mechanical design of this lift. Thanks for your work in putting this video together.
Thank you very much Ian, this is indeed a fascinating lift and I think, well worth the time I put into creating it.
That’s somewhat similar to the Otis Microdrive system. It utilizes two motors: one for full speed and one for leveling.
Wasn't there another such system that Otis used to do? There was this massive wheel mechanism which used to go around for the slow motor. Very old, from the same era - 1950s. It had a unique name, but can't remember what it was called. Like "super twister" or something lol! Not that, but something like it.
🤔🤔🤔🤔🤔sounds interesting
"Auxillary Micro" remember a couple of those in London years ago, brake used to come on into slow speed and the whole brake unit used to spin while the small motor drive main gear. Mad to watch, wish I had a video of it!
Eine schöne alte Anlage und dazu noch top gepflegt.
Indeed it is, which is perhaps why it's been running for 70+ years and still everything is original
Great video, very well made. Amazing that it's still running - imagine trying to service that clutch, or get a replacement for one of those limit switches in the shaft if it failed!
What a joy to watch. Thanks so much for the effort of showing all the synchronized videos.
Thank you very much, I think this lift was well worth the effort.
Very neat, also cool to see the more modern control mechanisms that were obviously added over the years. Looks like additional electronics from the 70s/80s and again from the 00s/10s or even more modern. A big mix of everything!
Impressive! It’s perfect! And perfect job as always!
Thank you very much Crocoland for the comments as usual :)
A dandy and unique elevator a clutch system for controlling speed! Has a similar design I saw in another video with the chain drive, and two motors. There is lot more precision engineering with the stop controls in the hoist way on the elevator cab chain linkage to the floor selector. With how far the compensating shaves are places on the cab, a defector sheave is not required on the counterweight side. Plus the two sheaves on the weight. The elevator has been well cared for during the last six decades, still going. It was built to last.
Beautiful piece of Swiss engineering!
Schlieren - the most amazing Swiss lift manufacturer
Yes
@@Laurin0731 Yes, I've been hearing all about Schlieren and they were truely a respectable company, bought out by Schindler later on.
Gebauer too
Incredibly cool elevator. The mechanical action of those huge contactors is very satisfying!
Well, I have another one of these lifts to upload at some point - same design, different location. And the contactors on it are actually much larger than these ones :)
Beautiful machine and obviously well looked after! I noticed at 11:34 the middle slip ring on the main motor is very pitted looking - the other two phases look clean and shiny. Better get the maintenance man to look at that sometime in the next 20 years!
Express had a similar system with a Slow and Fast motor quite the solution before variable speed was possible.
What an wonderful video, the amount of camera angles is amazing!
I did kind of go a bit overboard with camera angles, but better to film too much than too less!
Wonderful! Thanks Much!
Thanks for the comment
@@mrmattandmrchay Yall too!
Fascinating.
I spent a fair amount of time installing CCTV & Audio in lifts but always found it a bit of a black art.
As an electronics engineer for 50 year this and old relay traffic light systems just didn’t make sense.
I'd love to see some old relay traffic light systems! I'll have to do a search, probably all mechanical timers, relays and interlocks (to prevent two lights being green at once). Used to install CCTV in lifts myself, most interesting installation was City Tower in Basinghall street, London, back in the early 2000s.
wunderschöne Technik!
Thank you, indeed it is
14:41 Ooh look! It's a siren!
Now that's interesting, because that's what I thought. HOWEVER...!! The answer is here: th-cam.com/video/87tuIBi2tCE/w-d-xo.htmlsi=yp22x1Hlb7HwFVjp&t=475
Quality over Quantity
Absolutely, and I wouldn't want it any other way :)
3:20: It's for things like that arrow that this channel stands apart from others as much better!
I love adding things like this, the finishing touches and 'attention to detail'. Did you know, I exported this video 9 times before I was happy with it!! Everytime, nah, I need more detail here, etc!! I told myself, I have to stop being so critical with my videos then I'll upload more often, but then, wait a minute, perhaps this is what people enjoy! I don't think I can edit it any other way.
@@mrmattandmrchay 9 times? Uff... I'd just be happy watching the preview to be happy with it. Maybe with 1 remake... Wow...
I don't need more often. I just need the quality and the sutff you have been giving us. Thank you!
@@mrmattandmrchay Sigh... TH-cam deleted my answer. I'll see if I can recover it.
Edit: Nope. It's lost.
It was just commenting about how I don't do 9 times and how I don't have patience for that many times and I the the preview of the editor
Wow! Interesting
What a beaty, it is unique indeed!
Absolutely! Thanks for the comment
Very good videos as always
Thank you very much UrbanHarvey!
Main motor looks like slip-ring induction, with set of resistors connecting to slip rings for soft start. Resistors are near corresponding contactors, they turn on step by step.
Not quite sure was there a way to use same resistors for slow speed. As I understand it, it would work under load but have almost no effect if lift is going other direction (ie without motor it would actually overspeed going under its own weight or empty lift going up because counter-weight is much heavier). I believe effective speed control using slip-ring motor was achieved in old school hoisting cranes, but it probably required an operator to turn rheostat. For automatic use this 2-motor configuration is probably easier...
Good old screw-in fuses, haven't seen them for a while! Also copper oxide rectifier (or is it selenium, still confuse them!)
9:12 - this lift managed to find the Answer to Life, Universe and Everything while doing its job.
Slip ring motor - yes indeed! I researched this a while ago and very interesting to find out about them and how they work. Very interesting comment, enjoyed reading it and thank you.
Wow! Some lifts are a work of art in engineering and rightly deserve to be preserved. We know that one day none of this technology will be around but what a shame to just throw away something proven to work under harsh conditions for modern electronic rubbish designed to fail in time. I would rather trust my life with hard coded logic like this than some easily glitchable electronic controller.
This was probably state of the art back in 1952 and it's lasted all this time. The issue is always, do modern day engineers know how to fix this stuff when it goes wrong! Thanks for the comment
what amazes me is that someone sat at a desk and designed all of that.
Yes, exactly! And back in the 1950s, most of that stuff would have probably had to have been made specially in a workshop (not 'off the shelf' as everything is now)
These lifts also were not installed for too long as they were not long later made obsolete by using transformers and secondary low voltage rectifiers depending on if the lift was AC or DC. This approach was later further developed on in the 1970s with transistor logic which allowed for the earliest iterations of intelligent levelling which was done with up to seven different levelling speeds that the lift would rapidly move through.
Very interesting comment and thank you. Makes you wonder, if they knew the technology was coming, then would they still have created such an elaborate design. But guess they didn't know.
The lift runs like Swiss clockwork. Just a little bigger.
...Yes, I like it!
OH YEAH
Great video, please upload sirens videos it's really cool
There's not a lot of sirens to film in the UK, that have not been filmed already.
Super. 💙 T.E.N.
Thank you!
We have some old Otis Lifts from the 60ties in Theatre Dortmund. Also very impressive mechanical inner workings
Yes, designs from before computers were controlling lifts, yes, all mechanical and fascinating to film and watch.
Awesome video
Thank you!
Very cool lift, a lot of attention to details and very well put together, no wonder its still in service.
I wonder about the reliability of a such a mechanical system vs a double winding double speed motor (no idea how its referred in English).
Thanks VEc70R, yes I know what you mean about the double winding. Lots of things that can go wrong, also it would take an engineer that knows about how the lift works, to be able to repair it! Thanks for the comment.
Very OLD elevator!
The level of operational detail is superb!
Very nice work!
How are you able to determine the sequence of operation for obscure lifts? Do you have access to documentation/schematics ?
Yes, I actually photographed the schematics from this lift (when I walk up the stairs, you can see them on the floor outside of the motor room door). I have filmed another lift exactly like this one (same design, different location) so I'll show them when I edit this video. Thank you for your nice comment.
Considering this dates from the early 1950s it is a magnificent piece of engineering
Absolutely is, and 70+ years and still going! It's also very loud, especially with that door open for the motor room.
On a funny note I can't wait to see a V12 powered lift. On a serious note the engineering that this lift uses is impressive and built to last
I could see an internal combustion engine being specified as a backup in a circumstance where continued availability of the lift is essential but the electric power is sketchy. Ski lifts are designed that way.
Walls? Who needs those?
Yes, and they couldn't remove the only wall left, else nowhere to put the counterweight! :D
A very cool and unusual vontage model indeed.
It's very unique and this was a pleasure to upload
At first I thought this was in the US or Canada because freight elevators with doors that open vertically from the center are common here. However the inside door on one of those is typically a steel mesh that opens upwards.
Wow 72 years old
very nice - I once had the pleasure of 'rebuilding' such an engine room (sounds better than demolishing -_-)
Back then you could still replace every single contact in the contactors - extremely durable - but also super dangerous, there was simply no contact protection back then - you had to know what you were doing :)
Not like today, where you write on the Iphone that you shouldn't eat it ...
Yes, you have to be very careful what you touch here. Anything metal, easier to assume it's live and don't touch it! For a lift engineer fault finding, must be difficult, especially without drawings (no computerised fault log to diagnose faults).
That's an interesting lift!
I remember having seen a video of the motor room of the lift of this type with this clutch before quite a while ago here on TH-cam, but unfortunately I don't remember where. And of course your video is much more detailed and especially shows the whole lift, not only the motor room.
This lift is however quite scary indeed, with no inner doors on three sides! I think only in a place like this which is not open to the public a lift like this can survive so long without being modernized or replaced for safety reasons.
What's confusing is that while it seems this lift is in an English speaking country (probably the UK as that's where you are located), everything on this lift is in German, even the "operating instructions" and the labeling of the buttons (which seemingly had to be customary made for this lift anyway).
It's also a bit confusing for me that there seem to be more buttons than positions on the floor selector. Are these for different doors on the same floor?
Yeah, you definitely wouldn't want to load your freight in such a way that any part of it is leaning against the shaft wall.
interesting and are you interested in elevators and their functionality?
Absolutely! Anything LEDs and PCBS - ...uhm NO! Anything lamps and relays, YES!
Freight elevators in my country always used this kind of weird clutch
Very interesting concept though. Short lived, as DC motors and generators followed from this in the 1960s
@@mrmattandmrchay Well, again, the lifts in the country I live used AC motors and the clutch system as far as the 80s. I guess more modern solutions didn't pass well through the iron curtain.
Marrryat and Scott were using a similar drive in the 1930s they called it Levelectric. Royal Masonic hospital in London had several. All controller by Dewhurst controller
Cool, sounds like another unique and fascinating machine. Express do something similar, actually come to think of it, so did otis (a massive wheel mechanism that rotates - wish I could remember what it was called).
donde puedo buscar informacion del ascensor y de los embragues
There were some diagrams with this lift, I didn't upload them here. But I do have another video of a lift just like this one (same lift design, different building) coming up. I'll try and include the diagrams in that one.
I think the elevator is in Biel🇨🇭
It seemingly just needs minimal preventative maintenance to keep it running and it will probably never break down if well cared for! :)
Yep absolutely, and I suppose if anything broke, it's fairly simple to either repair or replace some of this stuff (someone in his workshop could knock something up!)
@@mrmattandmrchay
Yup plus modern machining tools also make it a lot easier to reproduce custom parts for those lifts! :)
Express Lifts had the TrueLevel using clutch and two motors.
If you are interested How to send you photographs?
Finally
Hopefully worth the wait?
I watched you for 14 years please respond remwber me? You responded to the older one
Thank you very much for watching me for so long. Uhm, I respond to so many people,, I'm sorry if I don't remember but I need some clues please? :)
you wanna see a 1970s lift go to eckersleys mill
It is a pity that they did not show the speed limiter device, and the catcher device was interesting
Ah, I thought I filmed everything, but not sure that I saw the speed limiter. Although we had an unlimited amount of time to film, this was in an office and the lift was LOUD when travelling!! Everyone there was very kind, but we didn't want to out-stay our welcome! So we kind of had to limit how long we were there for.
OH H*LL TO THE NO.. No cab walls! This thing is like the elevators that sometimes come up in my dreams. Except in my dreams the elevators open and its just black inside and I know if I try to step in the elevator, I am going to fall down the shaft. I haven't had a dream about elevators in awhile now.
I too was surprised - only one side is the wall, so only one place they could put the counterweight!
Beschriftung auf Deutsch, in welchem Land steht der Aufzug ? Das Gebäude drumherum wirkt irgendwie modern, ein Wunder das er so lange überlebt hat.
Der Aufzug befindet sich in der Schweiz (lebe auch dort deshalb weiss ich es)
@@Laurin0731 Correct
I agree - a modern office and a very old lift in the middle!! Strange sight!
What a fantastic lift - it will be shame if they modernise it.
It'll be modernised one day, but the good thing is, in this country they keep things going for far longer than we do in the UK here.
It's a freight elevator, why would it need to be modernized? Most of the mechanical room could last quite a bit longer than throwing in a microcontroller and calling it a day. Granted, the motors are probably not all that efficient but, again, this thing is meant to move freight, not people. I guess if it was dire, yes, the freight elevator can move people. That idea of using two motors and a clutch like that seen on a garden tractor is pretty cool though.
with all the old cloth wrapped wire it could be one hungry mouse away from an electrical nightmare. Not from the bite marks but from having to move neighboring wire to gain access to the damage and the insulation starts flaking off
Oh yes, rodents - I didn't consider that! These old looking buildings could be an ideal place for rodents to live and chew things like that.
Some of them got some of the wiring in my car.
72 years of operation and still counting... that's pure German engineering quality right there! It's interesting though that they did not bother to supply the labels in English!
It‘s made in Zürich, Switzerland… If it was a German Elevator though, it would likely had utilized many of the same electromechanical components as *SIEMENS* was the largest manufacturer for those capacitors, relais, switches, contactors, rectifiers, fuses and more!
Schieren and Schindler seem to label all their relays in a different way to what I'm used to. Yes, and indeed 72 years and still going! It seems that people actually WANT to keep this machinery running - here in the UK, stuff like this would have been replaced a LONG time ago!
Trash only no garbage? What does this mean?
No organic material that rots and stinks.
Good question! Not sure I know the answer to that one!
@@mrmattandmrchay easy: not rated for industrial waste, only intended for domestic waste and new produce
This is probably what a college student with an engineering degree would design for a lift
Yes, I like the idea! I'd love to go back to the 1950s when they were designing this!
Same here
no dust covers on anything? of course no safety guards.
In other words - don't stupid then.
@@VEC7ORlt you never did anything stupid?
@@arthurmario5996 if you're working on it without disconnecting the power - well, read above.
@@VEC7ORlt have you ever done any trouble-shooting? an ohmmeter will only get you so far.
@@arthurmario5996 there are also voltmeters, current clamps, non-contact indicators and other scary words, so your point is?
I wouldnt mind riding this but for the owners privacy I wont ask for the location and besides where Im from it would be way too expensive to travel out of country
3:40 trash only no garbage????!
"Garbage" means refuse that can leak, rot, or stink. "Trash" means dry refuse that cannot leak, rot, nor stink.
Excuse me? Trash only no garbage? What does that even mean?
"Garbage" means material that can rot, stink, or leak juice. "Trash" means dry refuse that cannot rot or stink nor leak any juice.
If im not mistake, nice german tech.
Swiss! 🇨🇭
I am the first comment/first like, there is no purpose to this comment sorry.
The purpose of the comment is to deny that it has a purpose.
Don't make a habit of begging for likes and subs, yet here we are.
Tell me, why even bother putting it in the beginning? I haven't even had the chance to see anything, besides when everyone keeps asking and asking and asking don't you get to the point where you just start hating it with passion?
If you spent 3 months editing a video then maybe you would consider doing the same. This is the SECOND TIME IN 15 YEARS (throughout my 600 videos) where I've verbally mentioned about subbing, hence "I don't make a habit of it". In the end, it's my choice what I put into the video, and believe me, I put a lot of effort into them which I think justifies asking people to CONSIDER liking and subbing. Also - I only added it at the start (after the intro so you've already had a taster) because its the best time as nothing is happening whilst going up the stairs. If I did it later then people would complain that I've put it a busy point in the video :)
@@mrmattandmrchay the only thing I'd consider is using more sponsor block and marking those annoying segments to be skipped and/or muted, this is how much I loathe it.
Without ads and the bits you loathe, there's nothing in it for me. I believe what you are refering to are all the components that go into monetisation and me trying to further my channel? Without it, I wouldn't post ANY videos - the little money I get, justifies all my time in creating the videos. If you hate them so much, then pay for the 'ad free' subscription. Otherwise, me mentioning 'if you wouldn't mind subscribing for just 10 seconds in the video', well, it's there for a reason and I won't be removing it. It's my channel, and I think I deserve it.
@@mrmattandmrchay well, put more then, put a reminder every few minutes, use dumbass titles, especially ones ending in a question, oh and don't forget useless arrows in the thumbnail pointing to obvious things, that'll propel the channel to the stratosphere, become a true slave to the algorithm.