mrmattandmrchay | What's inside a BROADMOOR SIREN damper/shutter control box? @mrmattandmrchay | Uploaded December 2019 | Updated October 2024, 2 hours ago.
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.
...........
65'000 TIMES?? How? See bottom of description.
...........
Thanks to MICHAL M for making this video possible.
TO HEAR THE NEW ELECTRONIC BROADMOOR SIREN (the last ever audio test), click here...
youtu.be/u7vEN-sR5Ag
See MICHAL M's channel here:
https://www.youtube.com/channel/UCo6dHlvMtQWra4bGhkXq1Hg/videos..............
OTHER QUALITY SIREN VIDEOS:
THE HAUNTING SIREN OF RAVENSTRUTHER:
youtube.com/watch?v=Zsu9shiC-Is
FORTH/SCOTLAND SIREN TEST:
youtube.com/watch?v=1JSfgvMuyOQ
BEST BROADMOOR SIREN VIDEO:
youtube.com/watch?v=IaCyouD__qQ
BROADMOOR SIREN PLAYLIST:
youtube.com/watch?v=Nr7hFzhSrKU&list=PLaq77KzM3KRR78P1tb_B5HO7PbgHseFy_
CARSTAIRS (Playlist):
youtube.com/watch?v=O3_-UbPrlyc&list=PLaq77KzM3KRSe-yu5tJiiDSHYpJroJyOm
...........
If you like my videos, please consider subscribing, thank you!
SIREN MERCHANDISE now available from mrmattandmrchay.com
...........
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.
youtube.com/watch?v=oWj5qsIJz-k
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:
youtube.com/watch?v=JWHd1ewfx48
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.
...........
THE MRMATTANDMRCHAY CHANNEL, established 2009:
I'm passionate about uploading quality and interesting videos for YOU, my audience.
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!
I always spend a lot of time editing my videos with animations, video in-sync with music and voice overs to make them this way. I'm also a perfectionist!
My moto - "Quality NOT Quantity" - spending a month editing a video is not a rarity!
But without you, I'm nothing here. Thank you so much for watching.
...mrmattandmrchay is me (Matt) and my son Chay.
...........
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.
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.
...........
65'000 TIMES?? How? See bottom of description.
...........
Thanks to MICHAL M for making this video possible.
TO HEAR THE NEW ELECTRONIC BROADMOOR SIREN (the last ever audio test), click here...
youtu.be/u7vEN-sR5Ag
See MICHAL M's channel here:
https://www.youtube.com/channel/UCo6dHlvMtQWra4bGhkXq1Hg/videos..............
OTHER QUALITY SIREN VIDEOS:
THE HAUNTING SIREN OF RAVENSTRUTHER:
youtube.com/watch?v=Zsu9shiC-Is
FORTH/SCOTLAND SIREN TEST:
youtube.com/watch?v=1JSfgvMuyOQ
BEST BROADMOOR SIREN VIDEO:
youtube.com/watch?v=IaCyouD__qQ
BROADMOOR SIREN PLAYLIST:
youtube.com/watch?v=Nr7hFzhSrKU&list=PLaq77KzM3KRR78P1tb_B5HO7PbgHseFy_
CARSTAIRS (Playlist):
youtube.com/watch?v=O3_-UbPrlyc&list=PLaq77KzM3KRSe-yu5tJiiDSHYpJroJyOm
...........
If you like my videos, please consider subscribing, thank you!
SIREN MERCHANDISE now available from mrmattandmrchay.com
...........
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.
youtube.com/watch?v=oWj5qsIJz-k
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:
youtube.com/watch?v=JWHd1ewfx48
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.
...........
THE MRMATTANDMRCHAY CHANNEL, established 2009:
I'm passionate about uploading quality and interesting videos for YOU, my audience.
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!
I always spend a lot of time editing my videos with animations, video in-sync with music and voice overs to make them this way. I'm also a perfectionist!
My moto - "Quality NOT Quantity" - spending a month editing a video is not a rarity!
But without you, I'm nothing here. Thank you so much for watching.
...mrmattandmrchay is me (Matt) and my son Chay.
...........
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.
