Big Ben: Fly fans
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- Опубліковано 28 вер 2024
- (There is no dialogue in this video) These fly fans are used within Parliament's Clock Tower (Big Ben)
The fly fans are air brakes used to regulate the descent of the weights which powers the bells.
Visit www.parliament.... for more information about the Clock Tower.
You are doing a really great work. I know that visiting the tower is subject to approval by a MP or embassy, and filming is otherwise forbidden, so this bunch of videos could represent a valid alternative for those that have missed the opportunity to visit the tower or simply can't afford it.
12 year comments
It is because these videos are official from the same government
Three days a week, Monday, Wednesday, and Friday, a group of mechanics head up to the clock room and spend an hour and a half winding the weights back up. They have a set of electric motors (installed 1914) for the striking and chiming trains. The going or timekeeping train is still wound by hand. They also do an accuracy check of the clock and an overall inspection and lubing of the parts.
11 year comments
Would like to see:
1. This same video recorded at 12:00 noon, showing the chiming train fan running for the full hour chine followed by the striking train fan running for the full noon strike.
2. Videos of the gear trains themselves as they unlock, move, and lock. The hour chime for the chiming train, and the noon strike for the striking train.
Adam Ahmed there is a video
what video is that
ua-cam.com/video/QQOlbMmgmc0/v-deo.html whach to the end
OMG thank you soooo much
some day in 2021 I would go to London and take a 4k video of it
I can hear that from London fireworks New Years Eve 2018
I wonder how many times Big Ben and the quarter bells can chime before the weights have to be wound up again.
Nerd With Attitude 3 days
F1Demon kkkjjkkkkkkkkkk
k!
Om i
5 days
The great clock is wound up 3 times a week
Lee Orbell I know. That wasn’t my question.
the fan fly on the left,that is the one with narrow blades, is connected to Big Ben's hammer, that is the striking mechanism. the fan fly on the right(which was spinning during the video), that is the one with wide blades, is connected to the 5 hammers that ring the 4 quarter bells(the lowest pitched bell has 2 hammers that save time because the chimes are fast, so it takes time with 1 hammer),that is the chiming mechanism.
I supposedly heard one of these broke causing the mechanism to run away. Can anyone shed anymore light on what happened?
Read about that on wikipedia and am curious as well just what went wrong.
Wikipedia: 5 August 1976: First and only major breakdown. The air brake speed regulator of the chiming mechanism broke from torsional fatigue
after more than 100 years of use, causing the fully wound 4-ton weight
to spin the winding drum out of the movement, causing much damage.
The fan fly suffered from torsional fatigue
Rather, the inspection is a quick visual inspection I'm pretty sure. Thorough inspections, from what I've read, are done twice a year when the clock is stopped for daylight savings time re-setting, and I guess that's also when guys descend down to the faces on ropes to clean them.
11 year comments
They don't hit each other because the one that spins here has notches cut out of the top corners so it will clear the other one. Also they will never run at the same time.
Adam Ahmed becuase the other one is controlled to big ben (the big bell in the center)
To make this video better, they should have the camera attached to the fly fan and roll video while they are spinning.
that seems a little to dangerous as if some 1 did that the fans started flicking & the camera came loose & was thrown it could get traped in a gear push the couns off the pengulum or knock some one out + they'd probly have to stop the clock first to do it to prevent the fans smacking them in the face
It can stop the clock and the chimes.
I remember standing on the platform with a dirty blanket pressing it against that shaft to stop it from overspinning when they were winding down the weights.
The quarter chimes of course
That click of the clicksprings at the end is not good. No clock no matter how large should do that, I have got a mantle clock, back when I used to wind it up it chimed normally, I went on vacation about 2 weeks and came back. It clicked like that and the clock face was out of sync with the chimes due to the fact it uses mechanical cams.
clocks built after 1920 has something called autocorrect it corrects itself by therefore switching off the chimes for the next hour until the clock face catches up with the chimes that belong to that specific quarter, half or full hour clock face position.
That click of the clicksprings at the end is in fact good. It has nothing to do with any of the reasons you talk about. The fans are driven by a click and ratchet so they can coast to a stop when the gear train locks at the end of the chiming. On most domestic clocks the fly fans are a friction fit on their arbors and are made to slip slightly when the arbor stops or starts.
3 quarter hour chime
It should’ve at least showed the chiming train in action.
Bigben
@stonerscolony the smaller air brake is for the main chime of big ben
YES
WHATS WRING WITH DA BELLS?????
The bells are chiming 35 minutes
Adithya.G Krishnan you mean 45 minutes.
leya louise since you are a idiot its CHINEING THE QUARTER HOUR
michelle mcdaniel the irony is beautiful.
You are bad grammar
Big Ben falls 12-10-2022
Its quarter before
What do fly fans even do?
They create drag so the bells don't ring too fast
2008
WHATS WRONG WITH DAT CLOCK????
Its just the fan brakes
+Rocky Bill Those fans regulate the speed in which the clock mechanism strikes the bells as they spin.
Rocks Blocks nothing! just Quarter hour.
MilanSmid what did you say 😬😬😬?!
This same video recorded at 12:00 and it power read more
😲
0:14 why flying fans is stoping?
because mate it spins while the clock chimes to control the speed of the chimes and when the chimes is done it stops so the clock doesnt keep chiming
Yes mate that is correct
@@kyletheringer Btw I am a HUGE fan of you!
Many thanks...
UK Parliament
?
UK Parliament can you film the mechanism at 10am???
No problem
0:05 rip headphone users
If they weren't there the movement would chime much faster. In the 970's one of these actually broke and fell on the part of the movement that powered the hour bell (Big Ben itself) tearing it to pieces, until it was restored the hour was chimed by the lowest of the four quarter bells
it was actually the quarter train that got torn to bits at 3:45 am.
Ive been looking everywhere for the name of these fans. These can save people's life on ski lifts or any lifts in general.
"The fly fans are air brakes used to regulate the descent of the weights which powers the bells. "
11 year comments
0:04 15 minutes left until 6 am, 35% power
You are cringy.
Shut up anti fnaf
Your comment has nothing to do with this video
Damn fnaf diehard cringelord, why do you exist in this comment section?
Fnaf
2 bad the clock run out of bong.
That is the quarter bells chiming 15 minutes till the hour.
I heard the quarter bells are chiming 45 minutes
Adithya.G Krishnan 45
There were only 3 chimes, as heard by him.
why isn't that shot in the main video?
12 year comments
I'm using my dad's tablet and I'm max 8 year's old and I love clocks and clock towers
depends what the time is as to how many bongs lol.
On the hour the minute hand doesn't move which I'm guessing is what the smaller wind breaker is.
11 year comments
Well. I thought you would put it back on🔕or🇬🇧🔊
@sonicdoommario The flay fans don't hit any chains but if you are on about the vertical wires to the right of the shot, then yes they are the linkage between the clock and the quarter bells. There are 5 of them for the 4 quarter bells, because there's a quick repetition of the lowest note which doesn't give enough time to lift the same hammer twice.
9 year comments
@JDM3550 - we are planning some more filming of the Clock Tower currently and I'll add this to the suggestions. Thanks.
UK Parliament webmaster
Okay UK
Please film the hour chime fly fan
What’s up in the small fan do is it gonna be back after you want a black 100?
It ring big ben
@eyesk8ter according to the three 'cycles' of the quarter chimes it is quarter to the hour
10 year comments
3 Quarter is the quarter to the hour
@JDM3550 Just search "The chimes of Big Ben" and you get to see the deafiningly loud Big Ben being struck!
its be coz big ben has a crack in it to the side the happer is parellel to with gives it the wanky tone
@@oliviaalwen2142 original was tested but they think the clapper was right then cracked
They are an aerodynamic brake for the chiming movement (a "fan flywheel")
11 year comments
O lord my headphones are up all the way
(I knew it was loud cuz you can hear the mechanism from the BELLFRY!)
♡ A y l e i g a c h a ♡ I remember you from London New Years 2012
Edit: I was FaZe XBL but I changed my channel name to XBL😅
Yes thank you UwU
Interesting!
12 year comments
Isn’t it super funny that when the fly fans are slowing down their sound is Rita Repulsa laughter while she has an ant head Great Britain?
Man, I would feel so intimidated to sit in that room, knowing that I'm right beneath the bells...
What are those chains that the fly fans hit? Do those chains pull up the striking hammers that hit the bells or do those chains have any connection with the weights in the shaft below?
sonicdoommario yes. Those wire ropes lift the strikers for the quarter bells.
the fly fans are there to slow down the weights descent cause otherwise it would go runaway like it did in the 70's.
@@EstCrossings Was there a recording of it?
@Renatodonadio Actually, if memory serves me right, it was one of the cable wheels that broke, It did major damage to the entire works, so it was shut down for a while. Maybe the UKParliament guy can shed some light on this.
10 year comments
they make the all the little ben and big ben's chime
dont you mean big bens kiddy bells lol as i like to see it as big ben the adult bell & the 4 quater bells the children bells lol
Can you film the hour chime fly fan
Rosie and Jim
Big Ben Boing
@ListerofSmeg2006 ah right thanks :)
That's the 3 Quater of the hour chime
9 year comments
I'm not a mechanic, but I'd assume that the weights would fall too fast and put the stability of the mechanism at risk.
11 year comments
what do the fly fans do anyways
They are regulators that stop the mechanism going out of control
That make the big ben chimes.
then great damage will get dealt
11 year comments
This is quarter three hour chime
122
I read in NATIONAL GEOGRAPHIC about some workers swearing about their boss, just as the BBC mic turned on, and their swear words were broadcast (live of course, because a delay would defeat the purpose of a time signal) When did this happen?
8 year comments
Amazing!
That was awesome
125:00
The fly fan is air breaks which that powee the bell of big ben
Big ben records at 12:00
what time was this?
3:45
The reason that striking clocks need these devices is to act as a speed governor. Going too fast could ruin the mechanism.
These fly fans are the only thing that governs the speed of the chiming mechanisms. The faster they spin, the more air drag is created, which causes the system to run at a sufficiently regulated speed. In 1976, the shaft going up to the fan for the quarter-hour mechanism broke, and the mechanism ran away, reaching an estimated 1600rpm and destroying many parts of the machinery. Read about it here: my-time-machines [dot] net/Big_Ben_paper_web-final.pdf (replace [dot] with .)
kstoerz there are safety brakes atached right now
They were put in afer the clock started ticking again in 1976
What spins these fans?
The chiming gear train and the striking gear train.
oh@@RaFGavin陳子垃
Yes we do i sure that big ben fly fan
Yes i sure fly fan of big ben
I am the big fan of ben tower .
Jesshwen
mm hmm
Why Do the other one not move then the other one do ? and how many times do big ben chimes?
Michael Hoffmann-Hansen the left fly fan will only move on the hour. As it is the one that controls the striker for the big ben bell. And Big Ben will chime for each hour passed. Once for one o clock, twice for two o clock, and so on.
A bit too fast
2008
Does the left fly fan start to move right after the fourth quarter, or does the clockwork take a break before the hour chiming starts? Whenever I'm listening to Big Ben in video clips on the full hour there is a break of about 12 seconds between the last quarter tone and the first hour chime.
That is connected to Big Ben, not the quarter bells
bet y didnt know big ben is a whitechapel bell but aparently that foundry is closeing or some thing
There’s a pause of about ten seconds before the striking train spins up.
Olivia Alwen The original was cast in stockton on tees. But that cracked during testing. So the bell was broken up and re cast in Whitechapel bell foundry.
Hmmmm
im suprised one fly fan dose not hit the other
Clockster 3000 the top outward corners of the quarter chime fly fan have been cut out, for that exact reason.
thats bc they spin when its there time to as the left one is more smaller & more closer to the chamber sealing then the right one is a few cm's down & it is a lot longer