What's inside a BROADMOOR SIREN damper/shutter control box?
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- Опубликовано: 1 авг 2024
- This little box has been opening and closing the siren shutter, WAIT FOR IT... about 65'000 TIMES!
In this video, we take a look inside the shutter mechanism.
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65'000 TIMES?? How? See bottom of description.
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ABOUT THE SIRENS:
Broadmoor installed 13 sirens in surrounding towns of the Broadmoor secure hospital, to warn local residents of a dangerous person that could have escaped. Broadmoor is a hospital to some dangerous patients.
The sirens were tested at 10am each Monday and I have separate videos for most of them sounding.
THE SIREN HUNT:
Initially these were quite hard to find, but we found them all. Some in council depots, compounds, parks and believe it or not - in the middle of housing estates metres from houses! Some are in secure places with no access at all.
HOW THE SIRENS WORK:
The Klaxon CS8 siren.
A 415volt 3-phase motor spins two rotors on either side. One rotor is for the high tone and the other for the low tone (the one with most holes is the HIGH tone).
During the escape tone, the airflow is cut alternately (about once a second) to each rotor by a shutter on each end producing the distinctive high-low tones. I believe these are known as CODED SHUTTERS - hence the model name Klaxon "CS"8.
Both shutters are opened together for the all clear tone. You can just make out the high and low frequencies being produced together if you listen carefully.
WHY ARE THERE ESCAPE SIRENS?
They were installed in the 1950s/60s with the intention of warning residents in surrounding towns and villages to remain in their homes and keep their children supervised following the escape of a Broadmoor patient.
2018 ONWARDS... - WHAT NOW?
The siren system was originally installed in the 1950s. The copper telephone wire system is outdated and parts have not been available for many years now.
With various faults developing and lack of parts and knowledge to fix it, a decision had to be made.
• Broadmoor Sirens - Loc...
After a lot of meetings and consultations, it was decided to maintain the existing sirens as best as possible then remove them when they fail.
It was decided to decommission the whole system rather than spend a lot of money to update it.
By the end of 2018, all sirens were be removed. Here is one being removed:
• Broadmoor siren--REMOV...
You have to bear in mind that security at Broadmoor has been vastly improved since it was built, and the sirens were installed in the 1950s. Also a new 'more secure' hospital is complete, making an escape even more unlikely. Compare 1950 to NOW, there is no comparison! Also we have social media, text messaging, mobile phone - none existed in 1950 when the sirens were installed.
A new siren will be installed on the new hospital, but not only is it electronic (basically a speaker, boring!), but it's tested 'silently'!!
The age of the satelite (remote) sirens is sadly, over.
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What is my channel about? "Old lift machinery made interesting", old air-raid sirens, prehistoric alarm equipment - things that I find fascinating and I hope you will too. If "I" don't find it interesting - IT DOESN'T GET UPLOADED!
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65'000 TIMES??
Let's say the sirens started in 1960 (as some did). Let's say... 1st Jan 1960 until December 2019 = 21884 days. 21884 /7 = 3126 weeks of Monday test activations.
The siren shutter cycles open and closed about every 1.5 seconds for 1 minute. Then one more time for the 'all clear' tone. That's about 21 times per week during the Monday 10am test.
So ROUGHLY, that's 22 * 3126= 65'646 times the shutters have cycled.
A giant solenoid, a strong spring, and a lot of grease.
it’s a horizontal 3T22 with no cones, solenoids work different, and different voltage
Thunderbolt 1003 and 3t22:
It is
you should consider saving one of those sirens. it would be an amazing part of history.
It doesn't matter how much money you try and throw at the guys removing the siren, Even if you offer more money than it's worth than scrap value they'll still take it to the scrapper
@@seanjuth the sad truth
Anyone noticed the van says Transhit instead of Transit @ 5:35 ?
That's amazing i want one
Hahaha
Waberner LMFAO
I have only JUST noticed that lol!!!
mrmattandmrchay - loooool
Built to last back in those days, love the giant solenoid !
The ones built now are too.
So simple, yet so effective. Beautiful.
One remaining mystery for me is how these sirens were controlled remotely. Maybe do a video on the control infrastructure?
I guess it's a phone line, and a box of electronics and relays.
Phone line or 'P.O. Line' as named in the control boxes.
@@dyl46225 And then what. Relays? Microcontroller?
They are connected back to the hospital via telephone lines.
@@MichalM What are the SIGNALS
I figured this would have just been identical to a Federal Signal 3T22, but it's interesting to see how the actual damper is at a 45 degree angle.
5:33 *TRANSHIT*
🤣🤣🤣
Wow now there was history recorded right there. Very thankful to the de-commissioning crew for allowing a good once over on the siren
My girlfriend’s 23 year old sister made a POINT of being weirded out by my interest in sirens when it came up in conversation. I love this though, definitely more going on in there than I thought!
Some people just don't understand...
now we know how the shutter mechanism works. Thanks Matt
I never knew that the shutter sits at a 45 degree angle. That’s cool
Likewise, I never knew either!
Certainly doesn’t look like it should be!
To accurately work out the times they’ve opened and closed, the first test was on the 8th December 1952 at 10am
They used to do pulse as the home office was using Hi-Lo for fallout warning grey (fallout expected within 1 hour)
But once the Home Office retired this signal, broadmoor switched over to the more infamous Hi-Lo signal we know today
Very similar to a 3T22 Siren shutter mechanism, another dual tone siren we have here in the states..
So here is what I can see. A solenoid pushes a hinge (on kind of a doorhandle of sorts to minimize pressure on the solenoid. The turning point of the hinge is where the flap is connected. The hinge is held in a position by a spring. This holds the flap in a closed position. When the solenoid is engaged it moves back, the hinge moves and flap opens up. This is operated to a timer relay. I do not think that this is a great explanation. Matt, would you like me to create an animation of this or a practical demonstration with a functioning mechanism? I am very happy to help. Plus I can subtitle this video for you.
Thats brilliant.
You should ask for the siren control panels
Social Media Is Nowhere Near As Better Than These Amazing Sirens
Interesting to see inside that mechanism.
If the siren dates from the late 50s, then it must have been moved onto that particular roof half way through its life, because the shopping centre was built in the 1980s (according to Wikipedia and the architectural style of the building). I wonder how long it was out of service.
According to some people that I've spoken with, it was originally on the council offices. You're quite right that the shopping centre appeared way after the siren was first installed.
@@mrmattandmrchay did you know that the old 2ww sirens had shutters. Not all of them but in some places on the south coast they had gents and carter sirens with shutters in WW2. They sounded what was called the cuckoo signal because of surprise attacks on the see front by German fighters but still sounded the code red and raiders past signals so they must of sounded a faster hi lo sound than the broardmoor sirens
@@mrmattandmrchay they had a cuckoo siren in Margate and other seeside towns
@@mrmattandmrchay and Eastbourne had one
Why didn't you take it home? 😂
They are property of the hospital. He can't just take them.
@@Dave-ji1hv Correct.
@@Dave-ji1hv plus where would he put it?
he couldent he would have had to ask broadmoor to take it
Why
Beau démontage
Love this old stuff I really get a kick out how simple things were back then but I’d say it’s overdue for re greasing still I suppose maintenance Is difficult when parts aren’t available anymore.
The solenoids are similar to the ones in an American Federal Signal Thunderbolt 1003, but the linkages have to operate rotating butterfly valves as opposed to sliding valves.
I love your videos
Couldn't they use those sirens for natural disasters or civil emergencies? Our Civil Defense system in the US was repurposed as natural disaster sirens.
No They Can’t Because Someone Will Steal It
The Whole Siren System Was Working Flawlessly After It Was First Installed
TRANSHIT van 😂, a classic haha
They better not be scrapping those sirens
1:04 looks pretty tall. Would it work standing up like that, or does it need to be mounted sideways to get airflow?
Sweet! the solenoids kinda reminds me of a Federal Signal 3T22.
Or the Thunderbolt 1003, but the linkages do a rotary motion instead of linear.
It basically is but its at 50 hz, it has no horns, its on its side, and the solenoids are different
I’d love to just have one
when is the siren F video from castairs village coming?
This is a federal 3t22 except no intake stands, no horns, sits sideways, different solenoids
So basically completely different.
@@CorollaChronicles Y e p
Keep it !!
So these really are basically a horizontal Federal 3T22 in the way these operate...of course these were in service long before the 3T22 existed so I wonder if Federal Signal got the design from them or just tweaked it a bit...
They're called Hi-lo and were used for fire calls in the US.
The inside of the solenoid is remarkably similar to the solenoid of an FS 3T22
You know when a sirien is very ild when even the techs have trouble opening the control boxes
How long ago did you film this Matt, I wonder if they've got them all back at Broadmoor now?
That was maybe three weeks to a month go. I was invited (as I know both Michal and Matt) but was unable to go due to family engagements. Apparently the only ones left now are sirens F and G which haven’t been removed, but nobody knows for sure.
Some very similar aspects between the CS8 and 3t22
I know I'm a bit late, but, are the sirens for the Broadmoor and State Hospital still running? It'd be a shame if they were taken down or replaced with electronic ones.
Playing with the flaps reminds me playing with a fidget
Looks similar to a 3T22 damper but in a different layout
What happens to these old sirens? Do they sit somewhere forgotten about or re-sold elsewhere?
Hey, i also have bought a similar siren like this in my garden, it's name is Cs8
You should save it!
Is it possible to ask these people in taking it home?
They use solenoids, and a shutter valve. All of that is connected to a flasher in the rcm
That's how the FS 3T22 and the THUNDERBOLT 1003 work those are soleniodes that operates the shutter .
I hope these sirens aren’t destroyed when removed. It would be great if they used them for something else. You should see if you could buy one off them
Flamethrower guy unfortunately the NHS have been adamant on their destruction to prevent them getting into the wrong hands
@@Jeagles thanks for letting me know, a sad end for these sirens but a valid reason for their destruction all the same
Solenoid energized to open the shutter - de-energized to close it.
yesss big solenoids
Well it looks like a Federal Signal 3T22, or Thunderbolt 1003 solenoid, but a 1003 has smaller solenoids. And this siren has a lower pitch than a Federal Signal 3T22, probably bc U.K's alternating current frequency is 50hz so the motor spins slower and in u.s is 60hz
did you buy the siren?
That is a very heavy-duty solenoid. Pity you couldn't save the siren. Offer the guys a couple of boxes of beer. (well-greased up mechanism)
hey matt, i'm working on an informative video on the klaxon cs8 sirens. do you mind if i use some of your videos? i will give credit in the description. thanks!
Hi. Thanks for your message. Normally I'd have a look at your channel to see what type of content you're creating before deciding. If I allowed everyone to use snippets of my videos, then it'd get out of hand and my videos (which I work very hard to film and produce) would start appearing everywhere on youtube. This is why I don't automatically say yes to everyone. However, your channel has no content at all for me to make a decision on. Crediting me in a video on a brand new youtube channel, is unlikely to give me many (if any) further views on my videos.
Therefore on this occasion, I'm very sorry, but I'm going to have to say no unfortunately.
I do appreciate you asking first though.
You need to nab one of these.
So why did some of the shutters not work? Mechanism siezed or something else? What do you think Matt.
My theory is that the ones that stuck shut didn't receive power and ones that stuck open had snapped/damaged springs.
Possible that the winding's on the transformer were burnt out.
The shutters worked off 240V so I don’t see a need for a transformer if you’re going to use such a big electromagnet.
Cool technology back in the 50s in United kingdom.
what type of sirien is that
this CS8 is like a hornless 3t22 but with no conduits Lol and its flipped over
What happened to the siren afterwards?
I want it.
It grew a body and became siren head
It got turned into bean tins
Why are this great sirenes decomisioned? thats so sad :(
For reverse 911 or 119 where ever the emergency number is and Phone Warnings and TV too.
Miss hearing those sirens on Monday 10:00
what did they do with the siren? destroy it? or sell it on a auction website or something like that?
I Hope they save one of these Beauties.
but where did the siren go?
That was the one that wasn’t working
This is a very big solenoid
where do these siren go after they been taken down
Depends on the location. Most end up in waste while either partially or fully assembled, left in a city's garage, or fully dismantled/destroyed for the contents.
In the case of broadmoor, the scrap yard
2:07 looks a lot different than the 3T22 solenoid
5:35
RIP
Matt, i wonder why you not asked for permission to take both sirene and All control equipment with you home 😆 what about the Main controller, was you able to record a video of that inside?
Did you get to keep one
Nope, despite many requests from many people they decided not to make any available. I can't blame them, if someone rigged one up and activated it, then the management at BMH would take the criticism from releasing them in the first place.
@@mrmattandmrchay I want one
I would love to have the privilege of inheriting a siren intended for the scrap yard…
Why don't they just use a gearbox connected to the actual siren wheel which picks up the siren rotation, and which then brings down rotational speed down to 3 rps (half a turn on 1.5 s) which converts to 180 rpm. Then just a mechanical linkage connected from that cogwheel to the shutter door.
The more mechanical moving parts, the higher likelihood of a mechanical failure .
Great video. It's very interesting to see that big electromagnet.
Also, it'S RD. I made a channel with some videos on it. I will likely use this channel from now on. i just wanted you to know i'm the same person. Thanks for your Email by the way.
cool. Just a note, you could be limiting your video content by your channel name. I mean, if you upload Schindler, then it's not a Express? Perhaps I'm over-analysing it as usual!! :)
mrmattandmrchay Hmmm, you could be right. I’m not planning on only uploading Express lifts, just a thing old or interesting. I genuinely couldn’t think of a name. Do you have any ideas?
Oh, and I think I found an amazingly rare lift in Edinburgh yesterday. It’s a Smith Major and Stevens lift which was modernised by Express in the 50s/60s.
@@Lift.Tracker That lift you describe sounds wicked! About the name, how about using the word Express as per dictionary definition: "express definition": 1. to show a feeling, opinion, or fact: 2. to communicate what you think or feel, by speaking. You could play on that by making it something like "Express lift interest", hmmmm I must admit that was a crap attempt you shouldn't rename it to that, but you know what I mean? I'll have a think...!
mrmattandmrchay Channel name changed! I don’t know why I didn’t just think of this name in the first place! Thanks for the suggestion to change it.
I’ve got a reply back from the guy at BSM. He’s invited me to a tour of plant rooms, lift motor rooms, the basement and staff passages.
Unfortunately it’s probably too late for you to come along, but I hope that you will be able to get the arrangement of seeing the lift motor room! :-)
@@Lift.Tracker That sounds fantastic! Your channel is showing some good content so keep up the effort. Always worth trying to go the extra mile then uploading it, rather than doing the 'short cut' and just uploading anything. Well, it's always been my way of doing things, as you know, I prefer to spend loads of time on videos to get a good reputation for doing quality videos. But this is just me, and you should make your channel what you want it to be. REALLY looking forward to seeing your BSM videos, but my advise is TAKE A WIDE ANGLE CAMERA AND TORCH! Would have liked to meet up and enjoy the experience with you, but how about making this YOURS and own it? - I mean, you made the effort to contact them, so you should get the reward and views? Let me know when it's up.
Why didn't you ask if you take a siren home?
Hi Noah, It's not as easy as that. These are not the type of thing a high security hospital will give away. I did ask about 4 years ago, and the answer was always no.
What's the point of actively removing a siren just to run the decommissioning program? Why not just cut the power connections from it so that nobody can turn it on?
that siren without working shutters is sounded like a German war siren
it looks like a 3t22 wiht qut horns
Looks almost exactly like a 3T 22 shutter control
FYI 3T22s to look exactly like that just with horns on it
@@jonuthinslawncareandconstr7772 and they are right side up, Solenoids are different and its at 60hz
So what's their future after they get moved on?
LightingDesk the bin
What happens to thiese sirens after decommission
scrapped or restored
Trap Star just scrapped unfortunately
It's for Hi-Lo.
Broadmoor siren
Don't forget to use the drone
Can you save one?
When they were removed, they were all taken back to Broadmoor hospital. Many people asked, no-one was allowed. But it would be irresponsible of them to give them away, else people could power them up, create a nuisance and Broadmoor would be held accountable for giving them away in the first place.
At the time, they were receiving so many emails 'can i have a siren' that I think they got fed up of the subject ;) I guess my channel probably didn't exactly help either.
what will happen to them
Hospital decided to scrap them all.
Klaxon CS8
This is a CS8
Feels so weird, but in the intro, I think I hear moaning, and then a hear the guy screwing of the cover, *sex sounds*, I don’t know why
haha this comment made me laugh!! I'll put my headphones on tomorrow and let you know what I think..! :D
This is Siren K
why is the siren kinda old and rusty and the chopper is scratch up with gray and red
Sirens And Air Conds because it’s 65 years old?
Because it's been outside in the British weather for 60 years, and that can take its toll.
This siren is siren K
"Giant electromagnet." No, not really. Want a giant one? Try the ones at metal salvage sites!
Here, man, this is called a _solenoid._
nothing is in the damper the damper is just a flat circle the solenoid is just a box
Make to hi lo
5:33 "Transh!t"
Old siren
So The air raid siren
H
No