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Hidden Secrets Of The Mersey Tunnel | The Deep Shafts! 

AdventureMe
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Exploring the History of the Mersey Queensway Tunnel in Liverpool, uncovering all of it's history and Hidden Secrets.
In this video we head into the giant Ventilation Rooms inside the George's Dock Building, and look at how they operate along with a peer down the 200ft tunnel shaft. Then take a close look at the giant turbines, that suck out all the fumes from the Mersey Tunnel and pump in fresh air.
MERSEY TUNNEL TOURS INFORMATION:
www.merseytravel.gov.uk/tunnel...
Call: 0151 330 1004
VIDEO INFORMATION CREDITS & THANK YOU'S
Alison Smith
Nikki McLaughlin
Mersey Travel
Liverpool City Region CA
NOTWEN_John
Beno.uk
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A special thank you to all video content film makers and photographers who's footage or pictures are featured in this video. These videos are made under Fair Use for educational purposes. All contributors and available links to their work can be seen in the videos description.
#adventureme #merseytunnel #liverpool #georgesdock #merseytravel #queenswaytunnel #artdeco

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24 июл 2024

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Комментарии : 246   
@ovallavo
@ovallavo Год назад
My father was a maintenance electrician for the tunnels for over 30 years and practically lived in the vents. We have enjoyed watching these videos together- any questions you need answering fire them this way. Thanks for the videos.
@AdventureMe
@AdventureMe Год назад
Thanks mate. One more to go.
@michaelcharters5727
@michaelcharters5727 Год назад
@@AdventureMe Did Your Dad know Mr Mannix. Arc Rectifier converts AC to DC, There was one on Mersey rail to operate the lifts. I worked there as an electrician And at the Railway George dock pump house
@lescampbell8464
@lescampbell8464 Год назад
What was your dads name..
@MichaelBeeny
@MichaelBeeny Год назад
Mercury arc rectifiers were used in many old cinemas. To provide the 70/100 volts DC required for the carbon arc light source for the projectors. I worked in one in the 60s. They are really reliable, they were still working after 50 years. Finally being removed for modern silicon diodes type rectifiers. Larger ones were also used to provide the DC for early trams.
@AdventureMe
@AdventureMe Год назад
Thanks Michael
@allangibson8494
@allangibson8494 Год назад
Lift motors too…
@emmabh2166
@emmabh2166 Год назад
Me and my eldest have been watching your videos for a while and we went to liverpool (and got stranded due to rail strikes) but managed to get through the tunnel and my son absolutely loved it! 🙌🏼 keep doing what you’re doing, you’re well loved in our house and it’s so educational too
@AdventureMe
@AdventureMe Год назад
Thanks Emma. Glad I am educating others.
@octaviussludberry9016
@octaviussludberry9016 Год назад
I hope you didn't walk as that's illegal and you could've been arrested.
@hollimurray8856
@hollimurray8856 Год назад
When the fan was opening I don't know why but I had the Thunderbirds theme tune in my head 🤣. Brilliant video!
@AdventureMe
@AdventureMe Год назад
Yes. That's so fitting
@andyrichardsvideovlogs8835
@andyrichardsvideovlogs8835 Год назад
Fascinating video. It's a privilege to see behind the scenes of tunnel. 👍 I actually live about a mile from where the gearboxes were made back in the 30s in the days when David Brown were one of the premier engineering companies in the country.
@lindamccaughey6669
@lindamccaughey6669 Год назад
That was fantastic thanks. How interesting that was. Thanks for taking me along, please stay safe and take care
@markosmith8037
@markosmith8037 Год назад
What a fantastic video. This ticks all the boxes and was a pleasure to watch. A perfect video that shows all you need to know about these tunnels and more - the engineering and workmanship of the tunnels and ancillaries, crystal clear narration and flow and great music. Excellent work - well done - 10/10.
@shirleylynch7529
@shirleylynch7529 Год назад
What a fab explore. You never cease to amaze us Darren. So interesting. Thank you.
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@havingalook2
@havingalook2 Год назад
Once again that was brilliant and very informative. Well done - you were very lucky to have seen this. Cheers
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@paulbeesley5743
@paulbeesley5743 9 месяцев назад
Its a great tour, i did it back in 2009 and loved it. Great video 👍👍
@rogerchadwick2255
@rogerchadwick2255 Год назад
Brilliant video, very informative. Thanks for making it. I've watched all your vids so far and this is one of the best
@AdventureMe
@AdventureMe Год назад
Wow, thanks!
@underwaterdick
@underwaterdick Год назад
Been waiting for this one with eagerness 😁 thank you!
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@petecotton2801
@petecotton2801 Год назад
Great Video Darren, Its fascinating to see what goes on behind the scenes of things that we really take for granted on a daily basis.
@AdventureMe
@AdventureMe Год назад
Thanks Pete. That's what I like to show people
@petecotton2801
@petecotton2801 Год назад
@@AdventureMe keep up the great work pal. The best in the business 👌 👏
@eliz9369
@eliz9369 Год назад
Absolutely fascinating and quality video, as usual. Many thanks Darren. David Brown made great tractors.
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@brianaveriss7972
@brianaveriss7972 Год назад
Another of your excellent videos Darren, thank you👍🏻
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@GENERALWA5TE
@GENERALWA5TE Год назад
Great video, always fascinating to watch your adventures.
@AdventureMe
@AdventureMe Год назад
Thanks Phil
@ffrancrogowski2192
@ffrancrogowski2192 Год назад
This place is mind blowing, Darren. The size of the extractor fan is incredible, and the size and depth of the shaft is whopping! Many thanks for being able to show us all this machinery etc. I've often wondered what's to do with those massive brick shafts either side of the Mersey there.
@AdventureMe
@AdventureMe Год назад
Thanks 👍Glad it was right up your street so to speak.
@martinmarsola6477
@martinmarsola6477 Год назад
Another great video today. Thanks Darren!
@AdventureMe
@AdventureMe Год назад
My pleasure!
@rydermike33
@rydermike33 Год назад
This series is fascinating. Thanks very much indeed for sharing with us. (And just look at that wonderful British engineering!)
@AdventureMe
@AdventureMe Год назад
Thanks Mike
@brianartillery
@brianartillery Год назад
Absolutely fascinating video. The plant room is like being in the engineroom of a huge ship. Really enjoyed this. Thank you!
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@michaelmiller641
@michaelmiller641 Год назад
fascinating as usual, Darren!
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@fhwolthuis
@fhwolthuis Год назад
Great stuff, Darren!
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@andrewclegg6541
@andrewclegg6541 Год назад
Fabulous !
@bobsrailrelics
@bobsrailrelics Год назад
Some big kit there. Very interesting and a process I hadn't thought of. Thanks.
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@jennytoole5276
@jennytoole5276 7 месяцев назад
This is fascinating!
@raccabird8889
@raccabird8889 Год назад
Awesome
@lindseykaine-walley6339
@lindseykaine-walley6339 Год назад
What an amazing place and to see it working before your very own eyes! Well impressed 👌
@AdventureMe
@AdventureMe Год назад
Thanks Lyndsey
@YouTube-are-Tory-Toilet-Crud
Amazing seeing what was cutting edge technology from over 90 years ago and those glazed bricks - a lot of thought and consideration went into the fabrication of those “air vents” No wonder the tunnel was considered the eighth wonder of the world. Fascinating. Thanks for bringing all the detail to life, in 2022! A great historical and informative project! 😁👍
@AdventureMe
@AdventureMe Год назад
Thanks Paul
@simonbradshaw3708
@simonbradshaw3708 Год назад
Thank you for another really enjoyable and interesting video. The adventureme series is really good, where to explore next have your series on the Mersey Tunnel? Looking forward to the next instalment.
@AdventureMe
@AdventureMe Год назад
Thanks Simon. I've got plenty of others up my sleeve
@TheGramophoneGirl
@TheGramophoneGirl Год назад
Really interesting video. Thank you. Look forward to more.
@AdventureMe
@AdventureMe Год назад
Thanks Samantha. There's a part 1 already out on the channel too.
@a11csc
@a11csc Год назад
this just gets better darren
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@darrenhaynes865
@darrenhaynes865 Год назад
Interesting vid can't wait for the next one
@AdventureMe
@AdventureMe Год назад
Thanks Darren. Did you see the first part?
@richardpowell1344
@richardpowell1344 Год назад
Hi Daz, wow another stunning video. Fantastic viewing once again. It's nice to see a little bit of Yorkshire in Liverpool with those gearboxes. What an amazing piece of engineering,especially the old starter motor room. Am looking forward to the next instalment. Just off topic for a moment,have you thought of following the old Cross Gates to Wetherby railway. Thanks again for an excellent video 😁😁😁
@AdventureMe
@AdventureMe Год назад
Thanks Richard. Yes I have, just not had time yet. I've done a small section of it already in my pompocali video.
@richardpowell1344
@richardpowell1344 Год назад
@@AdventureMe Hi Daz,I've just watched the Pompocali video. What a conundrum that is. It certainly gets the grey matter buzzing🤔🤔🤔
@moxymagic
@moxymagic Год назад
Another great video, looking forward to part 3
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@KeithHambidge
@KeithHambidge Год назад
Amazing engineering the stater switch gear looked awesome so complex Great series as always
@AdventureMe
@AdventureMe Год назад
Thanks Keith
@fatlad5090
@fatlad5090 Год назад
wow David brown are still going in Huddersfield. my dad had trucks with David brown gearboxes. And David brown tractors
@morphuk1
@morphuk1 Год назад
Another excellent video!
@AdventureMe
@AdventureMe Год назад
Thanks Ade
@bluenose1744
@bluenose1744 Год назад
Brilliant, thanks, answered lots of queries I had.
@AdventureMe
@AdventureMe Год назад
You are welcome!
@r3dshed
@r3dshed Год назад
The David Brown workshops are at the bottom of the street from where I'm sat watching this video. Finest Yorkshire engineering!
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@johntheman2006
@johntheman2006 Год назад
Great. Looking forward to pt.3.
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@oddsandwindsocks5905
@oddsandwindsocks5905 Год назад
Great video as usual Darren, was hoping for an outdoor view to of the air intake shaft.
@AdventureMe
@AdventureMe Год назад
It's the top of the building lol. Couldn't fly my drone due to the wind.
@wrcfreak2121
@wrcfreak2121 Год назад
Great stuff
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@ironwolf6849
@ironwolf6849 Год назад
So I don't know what type of "motor starter" it is but I do suspect It would be /would have been Ither auto transformer or a resistive starter. I cannot think It would have been Star Delta or wet bath starter because The motor is a bit too big For Star Delta and wet bath starters require constant attention. But The problem Is not that people won't work on the old starters(I know I would) :P. But the parts would have to be custom made which would take time and cost a lot of money. I also suspect that The DC was used for the control circuitry for the control for the fan contacters/relays ect. (The older generation stuff used to work with DC.) also a reason people don't want to work on it. Plus most big modern motors use soft starters and VFD's to really cut down on startup current draw. Plus VSD/VFD's "your choice of words" Can be micro tuned to run at certain Frequencies / speeds to match the current conditions in the tunnels. Saving power in the long run. OH and it's not a turbine. It's a fan there is a huge difference.
@ianhill20101
@ianhill20101 Год назад
Looking at the old switch gear id of thought it would of been started in wye and swith to delta i highly suspect because the motors had a gearbox in place from day 1 so id presume the input rpm would have always been fairly high for the gearbox as its huge for just a fan blade must be a fair amount of reduction going on and the shaft needs that support with bearings so theres alot of torque needed to move that massive weight of air as a column in the tunnel plus fight atomispheric pressure. Its nice looking at these old installations and having a peek into the past how things was done.
@ironwolf6849
@ironwolf6849 Год назад
@@ianhill20101 You could be right. Star delta is not uncommon and I did not rule it out. And If I'm not mistaken it really does look like the motors are not as old as the rest of the assembly as the motor has a much newer look to it compared to older motors. Now that I had a second thought about it and watched another video again that shows the motor from a different angle"It was too far". I suspect I could be right with some of my observations. Because I think that the older motor and possibly the new one too could be running with slip rings. Which would mean they not using S-D but the only way we will know is if they told us or If we could have had a closer look ourselves. And Yes I'm a fenatic when it comes to old gear and I love watching exploration videoes of things like this as there is nothing to really compare to and explore in my country. Plus it's ither all stripped and broken or too dangerous to explore (crime) . As I'm a qualified Millwright and have an excellent understanding for mechanical and electrical systems like my gamps before me I can usually figure out a lot of what's going on in these exploration videoes. The only unfortunate thing Is that The factory closed where I worked at before I qualified. Plus covid and the BBBEE law in the country makes it extremely difficult to get a job.
@ianhill20101
@ianhill20101 Год назад
@@ironwolf6849 Same here i trained and worked as a electical engineer on trains but that jobs long gone everywhere is shutting or shut. I made a bike a while back using a bldc motor and a variable frequancy drive called ' vesc ' they allow to run a motor with differing commutation types such as bldc or foc etc to get a smoother torque delivery and have a throttle thats based on torque rather than rpm so its not massively jurky off the mark. Keep learning and sharing plently like to read our thoughts.
@keepitsimple5982
@keepitsimple5982 Год назад
The starter we saw in the cabinet was for DC - so not star/delta - you can tell it is for DC because of the coils each side of the conductors of the "relays" They are called magnetic blow-outs - the strong magnetic field deflects the arc that would otherwise continue between the contact points and destroy them. Making the arc deflect in a curve gives space for cold air to fill the gap and look like the arc was being blown out like a candle (bigger installations do use compressed air). Also, because originally they used a DC motor it can be started as a "series" motor with a very high starting torque and then switched to the "parallel" mode, making it a constant speed motor (which is what you need for a fan).
@ironwolf6849
@ironwolf6849 Год назад
@@keepitsimple5982 That's verry interesting. I never thought that they would have used a DC motor but it makes sense.
@paulharvey9149
@paulharvey9149 Год назад
Long shafts AND nice eyes: my day is made! Seriously - this is interesting, I would never have thought that tunnel ventilation would be such a difficult issue to manage. Thanks for sharing.
@AdventureMe
@AdventureMe Год назад
Thanks Paul. Did you see the first part?
@paulharvey9149
@paulharvey9149 Год назад
@@AdventureMe I did indeed, yes!
@groovydonkey
@groovydonkey Год назад
Your videos always fascinate me, seeing things a majority of us never get to see and the with this one how it all works in synch. It must have have smelt quite strong in the foul chamber with all that diesel. I do hope in many years to come when/if all cars are electric and place like this are not needed as much that they will be listed and not forgotten and be part of the history of engineering and what was achieved.
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@MidnightVisions
@MidnightVisions Год назад
@6:05 Mercury Arc Rectifiers do the same function as a Bridge Rectifier in modern equipment. It turns AC electricity to DC by only allowing the positive AC wave in a 3 phase system to pass. They produce lots of x-rays too so don't get too close.
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@IanDarley
@IanDarley Год назад
X-rays need around 15kV to get excited, most MARs were used for lower voltages in the hundreds range to power large elevators, trams and the like. UV was an issue however.
@DesigntowinLew
@DesigntowinLew Год назад
It's amazing to see all the behind the scenes equipment that is needed to make the tunnel a safe and efficient place to be . Enjoying this series something a little different . Keep up the great work Darren !
@AdventureMe
@AdventureMe Год назад
Thanks Lewis
@andybbeck2043
@andybbeck2043 Год назад
Darren fantastic job very very impressive 👏
@AdventureMe
@AdventureMe Год назад
Thanks Andy
@garyfallows1123
@garyfallows1123 Год назад
I've been on the Birkenhead Tunnel tour, absolutely fascinating
@AdventureMe
@AdventureMe Год назад
Hope you enjoyed
@garethparr9482
@garethparr9482 Год назад
Really fascinating that
@AdventureMe
@AdventureMe Год назад
Thanks Gareth
@butchknapman3939
@butchknapman3939 Год назад
Darren , yet another detailed and fascinating video, something I noticed as you passed through the first red door was the quality of the glazed brickwork, all that work so even and then you mentioned it later, I am surprised that amongst in areas you were not wearing masks. There are a few people making good videos in my book and a lot making poor ones, not worth watching, poor research etc. Carry on your excellent work
@AdventureMe
@AdventureMe Год назад
Thanks mate. No masks, but I could taste it.
@ste.h9825
@ste.h9825 Год назад
Thanks Darren.😀
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@twelveightyone
@twelveightyone Год назад
I've done this tour and it's absolutely fascinating... this series is great and I am going to book myself in again for another tour (it's a bargain at £8.80, so much history). When I did the tour it was led by some engineers who work on the tunnel. They were talking to me about converting the lighting to LED and how much energy it would save. It still hasn't been completed, wish it would so it can save more energy. An absolutely amazing video, thank you so much for producing it (and I got scared when they dropped the weight down to prove their was water 30-40ft below... dark rooms with small holes leading to a massive drop which has water at the bottom is not something I am comfortable with!)
@AdventureMe
@AdventureMe Год назад
I bet lol. I was ok with it 😜
@IanDarley
@IanDarley Год назад
The Kingsway tunnel was upgraded to LED a few years ago. It's a bit easier with that tunnel though because there's two tunnels they can close one down for work in off-peak times.
@douglasthompson296
@douglasthompson296 Год назад
hi Darren, that was ace!!! imagine all that 'Heath Robinson' gizmos and plant whirring away for decades and still going strong. Those Mercury Arc Rectifiers were so spooky. who ever dreamed about making all this gear probably appeared were a tad 'eccentric' to other mere mortals 😎 Awaiting part 3, keep up the hard work. Cheers DougT
@AdventureMe
@AdventureMe Год назад
Cheers Doug. Yes they are quite bizarre contraptions.
@mark-wh2qc
@mark-wh2qc Год назад
Peter Cooper Hewitt an American invented the mercury-arc rectifier in 1902.
@robertjones8315
@robertjones8315 Год назад
I saw a functioning mercury arc rectifier in a railway museum somewhere up North years ago. It was very cool
@88SPIKE
@88SPIKE Год назад
I was brought up in Liverpool but had no idea of what lay behind the tunnels - thank you
@AdventureMe
@AdventureMe Год назад
Thanks mate. More to come
@davef.2329
@davef.2329 10 месяцев назад
Amazing! And mostly all of it pre-dates WWII.
@anthonyellis987
@anthonyellis987 Год назад
Is that your biggest fan on the series? Loving this series so far.
@AdventureMe
@AdventureMe Год назад
Quite possibly my two biggest fans
@octaviussludberry9016
@octaviussludberry9016 Год назад
You can actually ride a bike through the tunnel, after 10 at night and before 7 in the morning. I've done it a few times and it's quite scary as the lanes are narrow and drivers don't realise you're allowed to ride through. It's also really hot down there and that slope is steeper than it looks.
@AdventureMe
@AdventureMe Год назад
I bet it is. Don't fancy it myself.
@jonathancoombes1495
@jonathancoombes1495 Год назад
Why can't people be arsed click the thumbs up for videos like this? The time and effort to produce them needs acknowledging. Superb video giving us a glimpse of something most of us would never see for ourselves.
@AdventureMe
@AdventureMe Год назад
Yes indeed. Thanks Jonathan
@markosmith8037
@markosmith8037 Год назад
I could not agree more. However this situation seems common for many RU-vid videos / channels. I'd rate this one at 100% so I cannot see how anyone could not 'like' it. These people must have high expectations !
@HTV55838
@HTV55838 Год назад
As always Darren absolutely fascinating!! What is the instrumental music you use at the start of each video? Best wishes Paul
@AdventureMe
@AdventureMe Год назад
It's always mentioned in the video description, unless I made it myself.
@lynnballington8467
@lynnballington8467 Год назад
Hello Darren how are you and how is your dog Barney love your vidio you do very interested vidio s. You are amazing and always work hard take care stay safe xx
@AdventureMe
@AdventureMe Год назад
Thanks Lynn. He's all good at the minute
@nicklowe536
@nicklowe536 Год назад
Amazing to think they don't use the 60s fans. My mate worked on the tunnel installing the current fire escape system. After seeing your videos I get his love for the tunnel
@AdventureMe
@AdventureMe Год назад
Thanks Nick
@barrieshepherd7694
@barrieshepherd7694 Год назад
I wonder if it's because they are probably far higher speed and create a lot of noise and maybe complaints. Noise pollution is becoming the bane of life (along with the other pollution) The older, larger, fans turn at a slower rate so create less noise.
@fatlad5090
@fatlad5090 Год назад
very interesting daz. are doing a lost railways from Queensbury to bradford city goods yard and to the exchange station that will a good one.
@AdventureMe
@AdventureMe Год назад
Yeah eventually
@fatlad5090
@fatlad5090 Год назад
@@AdventureMe👍
@Slacky2k13
@Slacky2k13 Год назад
David browns were made in melt jam Huddersfield, around the corner where I used to live on and abandoned railway, good idea for a vid Darren!
@AdventureMe
@AdventureMe Год назад
Thanks mate. I used to live near there too.
@Slacky2k13
@Slacky2k13 Год назад
Good video again mate!
@johno9507
@johno9507 11 месяцев назад
Photonicinduction would be going nuts seeing those mercury arc rectifiers.
@probablynotmyname8521
@probablynotmyname8521 Год назад
For the rectifier, just read the wikipedia page, its pretty straightforward and an ingenious device.
@gerardshort6149
@gerardshort6149 Год назад
That was really interesting as i have been through the tunnel loads of times with my mate in the late 70's and early 80's . When you where on about the first fan and how big it was . I can easily know how big there are as i use to work down the pit and they had the same kind of thing cutting coal off the coal face as they ranged from 7ft to 12ft but i have heard of a coal face of 20ft .
@AdventureMe
@AdventureMe Год назад
Thanks mate. So you see the first part too
@gerardshort6149
@gerardshort6149 Год назад
@@AdventureMe I watched the first one then part showed so i went to wafch that straight away.
@grindelston5968
@grindelston5968 Год назад
I'm definitely gonna do that tour, me. 8 quid for 2 hours and you get all this I'm going specifically to meet the David Brown gears. That my favourite tractor ,David browns.
@sarahillingworth2718
@sarahillingworth2718 Год назад
I wouldn't want to fall down that shaft lol.. great video 👍
@AdventureMe
@AdventureMe Год назад
Me neither. I didn't get too close.
@lescampbell8464
@lescampbell8464 Год назад
cant watch anymore, without a comment. This brought back so many memories. My mate and I had the task of repairing and rewiring the starter cubicles (witch were 2 phase with a standing blue? phase). switchboards fans some idiot decided it was good idea wire the fans etc in Pyro whitch I was involved in. The (octopus ) Mercury arc rectifier I disconected and moved to G.D resulted myself my mate and a apprentice having to go for blood tests.(mercury). ..1982--2002. What happened to the TOP hat (Gearbox oil speed controlled.
@AdventureMe
@AdventureMe Год назад
Thanks Les. Glad you enjoyed
@Chipchase780
@Chipchase780 Год назад
I can’t help admiring the solid belt and braces engineering of the 1930’s, such as the original 1930’s trams still running in Blackpool. I understand they have to remanufacture some parts that wear out because they are long since obsolete. The components shown here look designed and constructed to last 100 years.
@gerbilmajor
@gerbilmajor Год назад
Having a mercury arc rectifier, the lift motors must have been DC and not AC
@johnj4860
@johnj4860 25 дней назад
Every time I see a DC motor my mind immediately jumps back 60 years to the formula for the back emf taught in my National Certificate course at Kitson College in Leeds. P phi n z / 60c if my memory still serves correctly
@misspurrr-fect3684
@misspurrr-fect3684 Год назад
Remember passing through the Queensway Tunnel in the early 1970s when the Tunnel was still as it was built with its 1930s fixtures & fittings. Amazed to see when driving through an Army of Women cleaning the Tunnel walls with large mops & NO breathing apparatus ! This practice was only phased out in the late 1980s as the tunnel walls & lighting were updated .
@AdventureMe
@AdventureMe Год назад
Yeah that's right. I mentioned that in the first episode.
@misspurrr-fect3684
@misspurrr-fect3684 Год назад
@@AdventureMe Witnessing it though was on another level ! 😳
@alligatorskies2807
@alligatorskies2807 Год назад
I believe there is still a working Mercury Arc Rectifier being used at the Manx Electric Railway in Laxey, Isle of Man. Probably need to request permission to see it as it's not open to the public. They use to do tours if you wanted to check out a working one.
@AdventureMe
@AdventureMe Год назад
Someone mentioned that to me yesterday. Yeah I need to get over there one day.
@TheRattyBiker
@TheRattyBiker Год назад
My grandad worked for David Brown & Sons Huddersfield... Bet the Scousers wish it was a Lancashire gearbox.... 🤣 That aside, I learned something today about the DBS badging on an Aston 👍👍
@6sicSIX
@6sicSIX Год назад
I'm a big fan
@AdventureMe
@AdventureMe Год назад
Thanks Killian
@EgoShredder
@EgoShredder Год назад
8:49 - Thunderbirds are go! 😁
@Lighting_Desk
@Lighting_Desk Год назад
I can only imaging the level of engineering and power required to keep this thing running. The power draw to start up must be huge.
@AdventureMe
@AdventureMe Год назад
Yeah. We don't realise what goes into just a tunnel.
@michaeldibb
@michaeldibb Год назад
6:32 search for this video on RU-vid: "Mercury Arc Rectifier - Still working after 8 decades" where they fire an Mercury arc rectifier up!
@projectartichoke
@projectartichoke 19 дней назад
A mercury arc rectifier converts AC current to DC current. It is a cold-cathode tube/valve meaning it has no heater filament. It works like any other rectifier tube/valve with the exception that the cathode is composed of liquid mercury making it self-restoring -- the cathode will never wear out or burn up. The initial arc in the tube must be struck by momentarily dipping an anode electrode into the pool of mercury and quickly withdrawing it, this is almost always done with an electromagnet. Once struck, the arc will continue on its own as long as current is flowing. In a regular heated rectifier valve the electron stream is invisible or a soft glow, but a cold-cathode rectifier must utilize a plasma arc which itself is also simply a stream of electrons. They were used in industrial and transportation settings because of their extremely high current handling capabilities as compared to other types of rectifiers at the time.
@ianhill20101
@ianhill20101 Год назад
Photonic induction has a video of the mercury arc rectifier showing how they work very clever basic design but highly dangerous if impacted is like a vacuum tubes equivalent of an igbt. The earliest diesel electric trains had massive arc rectifier but they was unreliable with all the vibration been liquid based, modern mosfets and igbt are solid state no moving parts more robust.
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@rjmun580
@rjmun580 Год назад
The old switchgear is typical 1930s DC equipment complete with mercury arc rectifier.
@NOMADCREATIVESOLUTIONS
@NOMADCREATIVESOLUTIONS Год назад
It's pretty epic engineering really.
@AdventureMe
@AdventureMe Год назад
Sure is
@ACslife23
@ACslife23 Год назад
cant wait for the next epsiode when will it be out ?
@AdventureMe
@AdventureMe Год назад
18th I think
@nonoyorbusness
@nonoyorbusness Год назад
Incredible what we used to be capable of.
@AdventureMe
@AdventureMe Год назад
Sure is
@VaultPete
@VaultPete Год назад
My maternal grandmother was a cleaner in the tunnels at night . With the mop bucket and long handled mop.
@AdventureMe
@AdventureMe Год назад
She may be one them in the photos in part one.
@Tuberuser187
@Tuberuser187 Год назад
I might be wrong but I think David Brown and Sons also made a huge, one off 1.5 ton gearbox for a interwar Driven Wheel Land Speed Record vehicle able to harness about 5,000 from a pair of aero engines and as well as beefy was fairly cutting edge. Edit: Check a RU-vid Channel called "Photonic Induction" for an explanation of the Mercury Arc Rectifier, a professional electrician with a mad scientist urge who also collects rare/unusual electrical stuff and he both explains one and gets them working, in his living room...
@AdventureMe
@AdventureMe Год назад
Thanks 👍
@TheWacoKid1963
@TheWacoKid1963 Год назад
Is the guide Crystal Tips?
@johnj4860
@johnj4860 25 дней назад
Carbon Monoxide is odourless. It's various other waste products in exhaust fumes you can smell
@Xantec
@Xantec Год назад
3:53 that fan looks to be just idling. id expected it to be going faster than that.
@AdventureMe
@AdventureMe Год назад
Yeah they weren't on full power. Not always needed.
@adejohnston6831
@adejohnston6831 Год назад
I wonder if putting a new modern efficient fan would save power
@AdventureMe
@AdventureMe Год назад
Quite possibly.
@cycklist
@cycklist Год назад
Got to love random Capital Letters :)
@pinacmediauk7453
@pinacmediauk7453 Год назад
Have they done RU-vid tours before, how would I go about it if I was interested because I'm thinking about doing different stuff on my channel
@AdventureMe
@AdventureMe Год назад
I think I was the first one. But nothing to stop you contacting them.
@pinacmediauk7453
@pinacmediauk7453 Год назад
@@AdventureMe I'm finding the tunnel well interesting it's cool
@asamitchell7948
@asamitchell7948 Год назад
If you go onto photonicinductions channel he starts up an old Mercury rectifier so you can see how they work
@AdventureMe
@AdventureMe Год назад
Thanks mate
@rich8761
@rich8761 6 месяцев назад
mercury arc rectifier will output DC from AC
@rjmun580
@rjmun580 Год назад
I cycled through the tunnel in the late 1950s. It was the late 1960s before I stopped coughing.
@AdventureMe
@AdventureMe Год назад
I bet. I was coughing a few days after this.
@Turbocharge1000
@Turbocharge1000 11 месяцев назад
did they scrap the original motors off of this ventilation?
@AdventureMe
@AdventureMe 11 месяцев назад
No they're still in use
@Turbocharge1000
@Turbocharge1000 11 месяцев назад
they moved them to another area in the tunnel then...this setup is new motors with those VFD drivers..@@AdventureMe
@SuperMika70
@SuperMika70 Год назад
🤩
@paulphillipson2378
@paulphillipson2378 Год назад
Converts AC to DC current for thie lift motors, plenty of vids on RU-vid about how they work
@AdventureMe
@AdventureMe Год назад
Thanks Paul
@TonyLing
@TonyLing Год назад
5:06 Those are not starter motors. That is the starting gear.
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