Hola buenas Tengo un reloj japonés que funciona sin darle cuerda Lo hace funcionar el péndulo Las campanadas son hechas por una batería 🔋 o pila, que hace funcionar el motor que las da Felicitaciones por esa bonita colección de relojes Gracias 🙂
Very nice collection of master clocks you have there. Electric Clock and meter collector from Auckland. I do the same by adding small weights to the pendulum for adjustment. I noticed on your PO #36 clock that you also disabled the seconds contacts, they do add drag onto the pendulum.
Thats a serious collection. It was the clunk that drove my repair synchronome from the house. Hipp toggle, nice. but conctless is EM impulse must be the way to go. Free pendulum. measure gravity.
I had a Gents Pulsynetic once, and it was so unreliable I got rid of it. I wish I'd kept it. Basically the gravity arm sometimes failed to reset, resulting in a second impulse two seconds after the first one. Worse still, I couldn't get it to always advance the wheel by one tooth at a time... sometimes it would advance two teeth at a time, so my slave clock was going horrendously fast.
I have about 5 C7s. the last one i got runnijg was quite difficult to get relaibale but ist now keeping time about +/- 0.4 sec per day. The adjustments are really critical.
@@9neil it certaianly is, but a good one, which does us no harm, my lady friend thinks I am mad, having loads of these, maby I am, but it makes me happy, so if I am mad, I am happily mad.
Hi Neil...A great collection ! I note that your PO36 is a favourite..I have a Mk4 like yours with the synchroniser. I'm not sure about them ever been used on the railways though. They were used in telephone exchanges up until sometime in the late 1970's to control tarrif equipment..ie. to time the calls.. Ther were several Marks..up to Mk6. The Mk4 at first had the synchroniser but could not of been succesfull because the PO removed them when they needed repair and the Mk4 is most often now seen with the synchoniser removed. I ibelieve the PO used a landline signal once a day to keep the clocks accurate ...but for some reason this must not have been successful. They were made under licence by at least three major companies..Gents, Synchronome and Magneta..Usually the label inside states the manufacturer..
Hi IP, and thanks for your reply. My PO 36 is made by Gents I think, as it has a Gents movement, but i cant find any label elsewhere. The teal blue/grey iron frame may be a giveaway perhaps?
The synchroniser system worked ok, but it was run through the telegraph network. with the increase of popularity of the telephone, the telegraph network was phased out and by the mid 1950's the synchronisers were no longer provided (Type 36 mk5). Some time after that, the sync system was discontinued. I have two 36's with 30, 6 and 1 seconds clocks running, and the synchronisers are externally operated once a day. I am still finishing the system, but it is working, see following vid… ruclips.net/video/F0AKXa2VykU/видео.html
Hi Neil, Thanks for putting this up. I watched through it yesterday with interest. You must be an expert in the field? Looking forward to more.. You said you also made clocks? If so, take some shots from your workshop also.. cool to watch! PS! Since this video is public, I hope you don't mind I share it with some friends? Your Norwegian buddy
Hi Neil. Seeing the date on the only other comment below, I have no idea if you'll ever see this one, which I hope you find interesting, but if not, perhaps other viewers might. Many years ago, maybe 1963-64 I went round to a school friend's house and noticed in the hallway a clock quite similar to some that you show in this video. I noticed a couple of metal 'pads' at the bottom of the case over which swung the pendulum, and despite it looking initially like a 'desktop' grandfather clock, my friend explained that it was an 'electric' clock and that every so often magnets would energise and give the pendulum 'a push'. I had never seen such a clock before and the memory of it has stayed with me all these years. My friend said that it was a 'Harrison' and that it was made by one of his distant relatives, (Great, great grandfather etc., not sure exactly), and although I had no idea at the time who he was, I later heard of the famous John Harrison - clock maker. So, I concluded from that it may have been the very same John Harrison himself, or most likely, a later relative. I've seen a number of tv documentary's on John Harrison and the race to accurately determine Longitude with a marine chronometer etc., and so I feel quite privileged to have seen the clock in my friend's house. I remember that the clock was in a dark brown case and was quite tall and that there was some electrical stuff behind the glass, wires, connectors and relay contacts etc., and from memory it was similar ish to your Gents at 4:35 or your 'synchronomes' at 10:32 but it was a long time ago so can't be sure. Now I've thought about it some more, there may well have been a 'hiptoggle' type mechanism similar to your favourite Gents Post Office 36, because I remember wondering what triggered the solenoid/magnets into action. I watched it for some time and was quite fascinated by it. I wonder where it is now. My friends name was Keith Penfold, and straight off there is no obvious family connection in the name, but perhaps 5 -10 yrs later Keith's family changed their names to what I believe was his mother's maiden name - Harrison. So, Keith Penfold became Keith Harrison. Anyway, thanks for a beautifully explained video and I hope you do get to see this comment. Regards Mark in the UK
Interesting. My Synchronome keeps excellent time and is very stable, but you are correct about the setting up, they are delicate things that require understanding. The Gents' Pulsynetic on the other hand also keeps as good time but with them it's just a case of bolting it to the wall and setting it going. Messers Parsons and Ball were not trained as clockmakers they were industrial engineers and it shows; large lumps of cast iron, pressings and stampings, it's a machine for keeping time and they just work. Not as pretty though. Your clocks are very close to each other and no matter what the wall is made of they will interfere with each other. All my clocks are 30 foot away from one another and as far as I can the are mounted at right angles to one another.
Hi Donald. I agree with your comments re the gents & the synchronome, and yes my clocks are close, but its a matter of too little space and too many clocks. There are another 10 or so in storage !.
If you're still active, if you have any information on how these master clocks work and drive slave clocks, whether it be a summary from the top of your head or information online, I'd love to know! These have always fascinated me.
Hi Tony, without a doubt, the IBM. It remains within a few seconds month after month. Second is the PO36 and the Gents with the two Synchronomes coming in last.
Thanks, My interest is in designing and building accurate pendulum clock impulsed by modern electronics. I also have an International (IBM) series 25 with the sealed mercury pendulum. I am in NAWCC chapter 133 electric clock chapter here in USA.
Hi Tony, I also have a magnetically impulsed clock 3/4 built. ( another unfinished project !). It has a 20lb cast iron bob on an invar pendulum, and I have 3 photo-interrupters connected to a microprocessor, which pulses a single magnet during the pendulum cycle. The programmable electronics means I can experiment with the pulse length , impulse position and whether it impulses every cycle or a a quasi type of Hipptoggle. I've had it running but not for long enough to get any accuracy data. I've just taken some photos so will post them shortly.
Sounds like we are going down the same path. My version 1 clock was impulsed from the bottom of the rod using the fedchenco concept (double coil) one to detect and one to impulse. It also had micro processor so i could alter the delay and pulse width. Now my version 2 has photo cell at the bottom of the rod, its impulsed vis a solenoid at the top of the rod, It also uses knife edge suspension.
I have one along with the master control that the wall clock connects too. It was installed in 1946 in a manufacturing plant. Wanting to sell it. Any idea the best way t do that.
I am running them on 12v DC, and have adjusted the series reostat to give a current of about 200mA from memory - its a few years ago. I can measure it if you wish. cheers neil
@@neil1058 wow i didnt know i commented on this 3 years ago. I seemed to have lost the piece that holds the pendulem and suspension spring, so everything is on hold until i can find another.
talking about earthquakes, we don't have earthquakes in London, but a hospital that I worked in had an operating theater, 5 floors up where the concrete floor ( about 100 feet by 50 feet square ) was suspended on huge damping tension springs, all the way around, you could not see from the inside, this was to reduce vibration, from local bombing during ww2, but I don't suppose it was any thing like an earthquake.but the v2 bombs could take out 1/2 a dozen streets in one go. I put a little piece of rubber on the hipp toogle to act as a buffer on my po 36
@@9neil it's a wonder there is any glass left or right. I went to the science museum, in London years ago, and they had a platform wiith grip railings, which simulated in 3 dimensions an actual seismic recorded earthquake in Alaska, with life size pictures in front of you, where the road side had drop 12 feet, if you did not grip hard, you would have ben slung of by the force. but I am sure the real thing, is a lot worse.
Adjustment is key to success, Even down to the noisy clatter , every 30 seconds . I have some in my clock repair workshop. Several steps can be taken to reduce the clatter , 1/ The recommended voltage , is intended to supply many slave dials , ( throughout a large factory, etc. ) so for use in a domestic setting for example, try reducing the voltage , to the point it just runs reliably , . 2/ adjusting the contact gaps , and the drop of the roller onto the gradient , carried by the pendulum. 3/ renew or install felt pads onto surfaces which the armature impacts. Close observations of the action , and numerous experiments , will eventually garner improvements , and be time well spent ..
Thanks for sharing your collection. Excellent video with a useful dialogue.
I have a Gents master plus the timer box. Good clock , noisy but you get use to it. Having that many would drive me bonkers...
Beautiful clocks!
Hi Neil, very interesting thanks of sharing your clocks
Hola buenas Tengo un reloj japonés que funciona sin darle cuerda Lo hace funcionar el péndulo Las campanadas son hechas por una batería 🔋 o pila, que hace funcionar el motor que las da Felicitaciones por esa bonita colección de relojes Gracias 🙂
Very nice collection of master clocks you have there. Electric Clock and meter collector from Auckland. I do the same by adding small weights to the pendulum for adjustment. I noticed on your PO #36 clock that you also disabled the seconds contacts, they do add drag onto the pendulum.
Thanks R. Yes the contacts do increase the HIp frequency.
Thats a serious collection. It was the clunk that drove my repair synchronome from the house. Hipp toggle, nice. but conctless is EM impulse must be the way to go. Free pendulum. measure gravity.
What a nice collection -good to see!
There are several more now. I need time to get them on the wall.
Magnificent collection, thank you for sharing it with us
Thanks Satters. Since then I have added a few more, so will de another video one of these days.
Very nice clocks, and a pleasant video as well.
thanks
I had a Gents Pulsynetic once, and it was so unreliable I got rid of it. I wish I'd kept it. Basically the gravity arm sometimes failed to reset, resulting in a second impulse two seconds after the first one. Worse still, I couldn't get it to always advance the wheel by one tooth at a time... sometimes it would advance two teeth at a time, so my slave clock was going horrendously fast.
I have about 5 C7s. the last one i got runnijg was quite difficult to get relaibale but ist now keeping time about +/- 0.4 sec per day. The adjustments are really critical.
I love your collection. I have just aquired a GPO 36. Your clocks make me want to find some more :)
Its addictive.
@@9neil it certaianly is, but a good one, which does us no harm, my lady friend thinks I am mad, having loads of these, maby I am, but it makes me happy, so if I am mad, I am happily mad.
Hi Neil...A great collection ! I note that your PO36 is a favourite..I have a Mk4 like yours with the synchroniser. I'm not sure about them ever been used on the railways though. They were used in telephone exchanges up until sometime in the late 1970's to control tarrif equipment..ie. to time the calls.. Ther were several Marks..up to Mk6. The Mk4 at first had the synchroniser but could not of been succesfull because the PO removed them when they needed repair and the Mk4 is most often now seen with the synchoniser removed. I ibelieve the PO used a landline signal once a day to keep the clocks accurate ...but for some reason this must not have been successful. They were made under licence by at least three major companies..Gents, Synchronome and Magneta..Usually the label inside states the manufacturer..
Hi IP, and thanks for your reply. My PO 36 is made by Gents I think, as it has a Gents movement, but i cant find any label elsewhere. The teal blue/grey iron frame may be a giveaway perhaps?
The synchroniser system worked ok, but it was run through the telegraph network. with the increase of popularity of the telephone, the telegraph network was phased out and by the mid 1950's the synchronisers were no longer provided (Type 36 mk5). Some time after that, the sync system was discontinued.
I have two 36's with 30, 6 and 1 seconds clocks running, and the synchronisers are externally operated once a day. I am still finishing the system, but it is working, see following vid…
ruclips.net/video/F0AKXa2VykU/видео.html
Hi Neil,
Thanks for putting this up. I watched through it yesterday with interest. You must be an expert in the field?
Looking forward to more.. You said you also made clocks? If so, take some shots from your workshop also.. cool to watch!
PS! Since this video is public, I hope you don't mind I share it with some friends?
Your Norwegian buddy
Hi Neil. Seeing the date on the only other comment below, I have no idea if you'll ever see this one, which I hope you find interesting, but if not, perhaps other viewers might.
Many years ago, maybe 1963-64 I went round to a school friend's house and noticed in the hallway a clock quite similar to some that you show in this video.
I noticed a couple of metal 'pads' at the bottom of the case over which swung the pendulum, and despite it looking initially like a 'desktop' grandfather clock, my friend explained that it was an 'electric' clock and that every so often magnets would energise and give the pendulum 'a push'. I had never seen such a clock before and the memory of it has stayed with me all these years. My friend said that it was a 'Harrison' and that it was made by one of his distant relatives, (Great, great grandfather etc., not sure exactly), and although I had no idea at the time who he was, I later heard of the famous John Harrison - clock maker. So, I concluded from that it may have been the very same John Harrison himself, or most likely, a later relative.
I've seen a number of tv documentary's on John Harrison and the race to accurately determine Longitude with a marine chronometer etc., and so I feel quite privileged to have seen the clock in my friend's house.
I remember that the clock was in a dark brown case and was quite tall and that there was some electrical stuff behind the glass, wires, connectors and relay contacts etc., and from memory it was similar ish to your Gents at 4:35 or your 'synchronomes' at 10:32 but it was a long time ago so can't be sure. Now I've thought about it some more, there may well have been a 'hiptoggle' type mechanism similar to your favourite Gents Post Office 36, because I remember wondering what triggered the solenoid/magnets into action.
I watched it for some time and was quite fascinated by it. I wonder where it is now.
My friends name was Keith Penfold, and straight off there is no obvious family connection in the name, but perhaps 5 -10 yrs later Keith's family changed their names to what I believe was his mother's maiden name - Harrison.
So, Keith Penfold became Keith Harrison.
Anyway, thanks for a beautifully explained video and I hope you do get to see this comment.
Regards Mark in the UK
hi Mark,
Very interesting and you were priviledged if it was indeed a Harrison clock.
Interesting. My Synchronome keeps excellent time and is very stable, but you are correct about the setting up, they are delicate things that require understanding.
The Gents' Pulsynetic on the other hand also keeps as good time but with them it's just a case of bolting it to the wall and setting it going. Messers Parsons and Ball were not trained as clockmakers they were industrial engineers and it shows; large lumps of cast iron, pressings and stampings, it's a machine for keeping time and they just work. Not as pretty though.
Your clocks are very close to each other and no matter what the wall is made of they will interfere with each other. All my clocks are 30 foot away from one another and as far as I can the are mounted at right angles to one another.
Hi Donald. I agree with your comments re the gents & the synchronome, and yes my clocks are close, but its a matter of too little space and too many clocks. There are another 10 or so in storage !.
If you're still active, if you have any information on how these master clocks work and drive slave clocks, whether it be a summary from the top of your head or information online, I'd love to know! These have always fascinated me.
I have a Gents' Pulsynetic but don't know what the voltage is. Can you just help?
Very nice collection.
thanks Alicia
Thank you very much for nice video. I also have a few master clocks and punch clocks :-)
Are you able to put up any picures?
@@9neil I uploaded a short clip of the ITR. I'll make some of the others as well.
ruclips.net/video/iToiqB4lEkY/видео.html
Thanks for sharing. Interesting collection. What do you consider your best timekeeper?
Hi Tony,
without a doubt, the IBM. It remains within a few seconds month after month. Second is the PO36 and the Gents with the two Synchronomes coming in last.
Thanks, My interest is in designing and building accurate pendulum clock impulsed by modern electronics. I also have an International (IBM) series 25 with the sealed mercury pendulum. I am in NAWCC chapter 133 electric clock chapter here in USA.
Hi Tony,
I also have a magnetically impulsed clock 3/4 built. ( another unfinished project !). It has a 20lb cast iron bob on an invar pendulum, and I have 3 photo-interrupters connected to a microprocessor, which pulses a single magnet during the pendulum cycle. The programmable electronics means I can experiment with the pulse length , impulse position and whether it impulses every cycle or a a quasi type of Hipptoggle. I've had it running but not for long enough to get any accuracy data. I've just taken some photos so will post them shortly.
Sounds like we are going down the same path. My version 1 clock was impulsed from the bottom of the rod using the fedchenco concept (double coil) one to detect and one to impulse. It also had micro processor so i could alter the delay and pulse width. Now my version 2 has photo cell at the bottom of the rod, its impulsed vis a solenoid at the top of the rod, It also uses knife edge suspension.
I have one along with the master control that the wall clock connects too. It was installed in 1946 in a manufacturing plant. Wanting to sell it. Any idea the best way t do that.
Barbara - are you in NZ?
what voltage are you running your synchronome? i have one and cant get the right voltage via a battery
I am running them on 12v DC, and have adjusted the series reostat to give a current of about 200mA from memory - its a few years ago. I can measure it if you wish. cheers
neil
@@neil1058 wow i didnt know i commented on this 3 years ago. I seemed to have lost the piece that holds the pendulem and suspension spring, so everything is on hold until i can find another.
talking about earthquakes, we don't have earthquakes in London, but a hospital that I worked in had an operating theater, 5 floors up where the concrete floor ( about 100 feet by 50 feet square ) was suspended on huge damping tension springs, all the way around, you could not see from the inside, this was to reduce vibration, from local bombing during ww2, but I don't suppose it was any thing like an earthquake.but the v2 bombs could take out 1/2 a dozen streets in one go.
I put a little piece of rubber on the hipp toogle to act as a buffer on my po 36
A decent earthquake here causes the pendulum to bang against the glass on the case.
@@9neil it's a wonder there is any glass left or right.
I went to the science museum, in London years ago, and they had a platform wiith grip railings, which simulated in 3 dimensions an actual seismic recorded earthquake in Alaska, with life size pictures in front of you, where the road side had drop 12 feet, if you did not grip hard, you would have ben slung of by the force. but I am sure the real thing, is a lot worse.
are you still on the go ?
Yes absolutely.
I have one and i want fix it
Adjustment is key to success, Even down to the noisy clatter , every 30 seconds . I have some in my clock repair workshop.
Several steps can be taken to reduce the clatter ,
1/ The recommended voltage , is intended to supply many slave dials , ( throughout a large factory, etc. ) so for use in a domestic setting for example, try reducing the voltage , to the point it just runs reliably , .
2/ adjusting the contact gaps , and the drop of the roller onto the gradient , carried by the pendulum.
3/ renew or install felt pads onto surfaces which the armature impacts.
Close observations of the action , and numerous experiments , will eventually garner improvements , and be time well spent ..
why there is no more electric wall clocks?
There is. I've just not gotten round to filming them.
I have Pulsyntic clock and i want to fix it
Play music