Date   

Re: Regulator style slave

Simon Taylor
 

Hi Richard, 

it is in the online group.

Hopefully the following link will take you to the photo album…


Simon GPO clocks





On 11 Jan 2019, at 19:25pm, RICHARD ADAMEK via Groups.Io <oldenginehouse@...> wrote:

Thanks Gentlemen all for your useful info, 

I may have missed something earlier in the life of this new platform Jim, not quite certain where to look for the photo section - perhaps I'm just a dafter old fart than I thought ;)

On Friday, 11 January 2019, 17:03:50 GMT, James Kelly via Groups.Io <jimfortress@...> wrote:


Richard, Simon and Chris,
 
There is a file in the photos section titled Synchronome Astronomical slaves, there are a number of images in there of both dial and movemnets.

Regards

Jim


--
Simon GPO Clocks

http://www.lightstraw.co.uk/gpo/clocksystems/index.html


Re: Magneta and also Bowell

James Kelly
 

Hi Simon

Sorry must clean my glasses I interpreted the reflections on the bob as different shaped bob, now Ive had a second look I can see its original

Mea culpa, my mistake, must try harder.

Jim


Re: Magneta and also Bowell

Simon Taylor
 

I er… WHAT?

Are you sure, I thought it looked the same. It might be the pendulum centring register that is below it, so I will add a further two photos of same clock.



Best I got (ebay photos!)



On 11 Jan 2019, at 19:11pm, James Kelly via Groups.Io <jimfortress@...> wrote:

Hi Simon

Thanks For the additional information< I can see now that the SECC PO 16 image from your earlier post has had the pendulumn bob changed to a non standard shape

Glad you like the new groups.io platform its a lot better than the old Yahoo one

regards

Jim



--
Simon GPO Clocks

http://www.lightstraw.co.uk/gpo/clocksystems/index.html


Re: Pallet design

Ken Strauss
 

Got it and thanks!

I resaved as an Acrobat 9 or later version which is only about 18MB if anyone wants a slightly smaller version.

 

From: synchronome1@groups.io [mailto:synchronome1@groups.io] On Behalf Of Ian Lonsdale
Sent: Friday, January 11, 2019 12:01 PM
To: synchronome1@groups.io
Subject: Re: [synchronomeelectricclock] Pallet design

 

For Jurgen and Ken,

 

File is on its way as requested

 

You should get a link to WeTransfer in your email shortly

 

Just follow the link and that will allow you to download the PDF

 

Kind regards

Ian Lonsdale

 

From: synchronome1@groups.io <synchronome1@groups.io> On Behalf Of Jürgen Hoefeld
Sent: 11 January 2019 11:42
To: synchronome1@groups.io
Subject: Re: [synchronomeelectricclock] Pallet design

 

Hi Ian,

do you think it would be possible to send this file also to me?

 

Thank you very much in advance.

 

Yours, 

Juergen 

 

Juergen Hoefeld

Aachen, Germany

 

Am Fr., 11. Jan. 2019 um 11:53 Uhr schrieb Ian Lonsdale <ian.lonsdale@...>:

John,

 

The extract came from a series of articles published in Engineering in Miniature between Jan 1987 to May 1988

 

I can send the complete series in PDF (28mb) to you via WeTransfer.com if you want

 

Regards

Ian Lonsdale

 

From: synchronome1@groups.io <synchronome1@groups.io> On Behalf Of John Haine
Sent: 10 January 2019 20:37
To: synchronome1@groups.io
Subject: Re: [synchronomeelectricclock] Pallet design

 

Wow!  Thanks for all the quick replies.

Ian, noted that the ideal shape is probably not going to work any better.  Even the "ideal" shape is based on the notion that a raised-sine impulse waveform is optimum, with no real reason why.  As I have a little CNC mill I could form the shape almost as easily as the circular arc.

Peter, I think those pages are almost the same as what I have in "Electric Clocks and How to Make Them" - again the drawing lacks one dimension.

Ian, thanks for that article - very useful!  I think that is from HJ?  Could you say when it was published please?  Now that HJ is online from 1858 to 2000 I should be able to download the whole series.

Geoff, "HSN" is a newsletter published by the NAWCC, sort of the American equivalent of the BHI, it's for oddities like me who still find the physics of pendulums and things interesting.  Not a very wide circulation I fear.

Thanks again all - I'm sure I'll have many more questions.

John.


Re: Pallet design

Jürgen Hoefeld
 

Thank you very much, Ian. This helps a lot to plan a possible build of this magnificent clock.

Best regards, Juergen

Am Fr., 11. Jan. 2019 um 18:01 Uhr schrieb Ian Lonsdale <ian.lonsdale@...>:

For Jurgen and Ken,

 

File is on its way as requested

 

You should get a link to WeTransfer in your email shortly

 

Just follow the link and that will allow you to download the PDF

 

Kind regards

Ian Lonsdale

 

From: synchronome1@groups.io <synchronome1@groups.io> On Behalf Of Jürgen Hoefeld
Sent: 11 January 2019 11:42
To: synchronome1@groups.io
Subject: Re: [synchronomeelectricclock] Pallet design

 

Hi Ian,

do you think it would be possible to send this file also to me?

 

Thank you very much in advance.

 

Yours, 

Juergen 

 

Juergen Hoefeld

Aachen, Germany

 

Am Fr., 11. Jan. 2019 um 11:53 Uhr schrieb Ian Lonsdale <ian.lonsdale@...>:

John,

 

The extract came from a series of articles published in Engineering in Miniature between Jan 1987 to May 1988

 

I can send the complete series in PDF (28mb) to you via WeTransfer.com if you want

 

Regards

Ian Lonsdale

 

From: synchronome1@groups.io <synchronome1@groups.io> On Behalf Of John Haine
Sent: 10 January 2019 20:37
To: synchronome1@groups.io
Subject: Re: [synchronomeelectricclock] Pallet design

 

Wow!  Thanks for all the quick replies.

Ian, noted that the ideal shape is probably not going to work any better.  Even the "ideal" shape is based on the notion that a raised-sine impulse waveform is optimum, with no real reason why.  As I have a little CNC mill I could form the shape almost as easily as the circular arc.

Peter, I think those pages are almost the same as what I have in "Electric Clocks and How to Make Them" - again the drawing lacks one dimension.

Ian, thanks for that article - very useful!  I think that is from HJ?  Could you say when it was published please?  Now that HJ is online from 1858 to 2000 I should be able to download the whole series.

Geoff, "HSN" is a newsletter published by the NAWCC, sort of the American equivalent of the BHI, it's for oddities like me who still find the physics of pendulums and things interesting.  Not a very wide circulation I fear.

Thanks again all - I'm sure I'll have many more questions.

John.


Re: Regulator style slave

RICHARD ADAMEK
 

Thanks Gentlemen all for your useful info, 

I may have missed something earlier in the life of this new platform Jim, not quite certain where to look for the photo section - perhaps I'm just a dafter old fart than I thought ;)

On Friday, 11 January 2019, 17:03:50 GMT, James Kelly via Groups.Io <jimfortress@...> wrote:


Richard, Simon and Chris,
 
There is a file in the photos section titled Synchronome Astronomical slaves, there are a number of images in there of both dial and movemnets.

Regards

Jim


Re: Magneta and also Bowell

James Kelly
 

Hi Simon

Thanks For the additional information< I can see now that the SECC PO 16 image from your earlier post has had the pendulumn bob changed to a non standard shape

Glad you like the new groups.io platform its a lot better than the old Yahoo one

regards

Jim

On Friday, 11 January 2019, 18:05:53 GMT, Simon Taylor <smktaylor1@...> wrote:


Hi Jim, 

I was going to show a photo of another clock, but just had an inspiration. 

On my site is a copy of the first GPO clock manual as it were from October 1927, which has a description of the clock 16 and two drawings. GPO drawings tended to be exact down to the bow in the wires and the position of the screws!.
Here they are…

.


here is a link to the 1927 document. It is in the form of a .jpg gallery.

There is also the early Martin Fisher Magneta system detailed here.

Simon GPO clocks



On 11 Jan 2019, at 18:52pm, James Kelly via Groups.Io <jimfortress@...> wrote:

Hi Simon

With regard to your image of the SECC P.O. 16 clock I have not seen one with that shape of pendulum bob do you think its original

regards

Jim


--
Simon GPO Clocks

http://www.lightstraw.co.uk/gpo/clocksystems/index.html


Re: Magneta and also Bowell

Simon Taylor
 
Edited

Hi Jim, 

I was going to show a photo of another clock, but just had an inspiration. 

On my site is a copy of the first GPO clock manual as it were from October 1927, which has a description of the clock 16 and two drawings. GPO drawings tended to be exact down to the bow in the wires and the position of the screws!.
Here they are…



here is a link to the 1927 document. It is in the form of a .jpg gallery.

There is also the early Martin Fisher Magneta system detailed here.

Simon GPO clocks



On 11 Jan 2019, at 18:52pm, James Kelly via Groups.Io <jimfortress@...> wrote:

Hi Simon

With regard to your image of the SECC P.O. 16 clock I have not seen one with that shape of pendulum bob do you think its original

regards

Jim


--
Simon GPO Clocks

http://www.lightstraw.co.uk/gpo/clocksystems/index.html


Re: Magneta and also Bowell

James Kelly
 

Hi Simon

With regard to your image of the SECC P.O. 16 clock I have not seen one with that shape of pendulum bob do you think its original

regards

Jim


Re: Regulator style slave

Simon Taylor
 

Brilliant Jim,
nice to see others. That first one with the black dial is the one we had running on the system in the shop and a link to a video of it is earlier in this topic!
 
Simon GPO Clocks

http://www.lightstraw.co.uk/gpo/clocksystems/index.html


Re: Magneta and also Bowell

Simon Taylor
 

For comparison’s sake of a good design, here is an SECC type 16 from the first quarter of the 20th century.

(Look, I can have the photos where i want now, joy!)




Below is a Gillet & Johnston licensed version of the GPO clock 46 from 1934



and last is my new acquisition, most likely from the 60’s or 70’s. (Won’t know until it arrives and I can check for the date code.)


Apart from the 46 having extra facilities and no synchroniser, it is easy to see the similarities through out 50 or so years!

Simon GPO clocks


On 11 Jan 2019, at 17:59pm, James Kelly via Groups.Io <jimfortress@...> wrote:

Hi James,

Thanks for the additional information, it must have been a very interesting period with companies merging and creating transitional models before they hit on a winning design, it certainly gives us enthusiasts plenty to lookout for and talk about,

Regards

Jim


--
Simon GPO Clocks

http://www.lightstraw.co.uk/gpo/clocksystems/index.html


Re: Regulator style slave

James Kelly
 

Richard, Simon and Chris,
 
There is a file in the photos section titled Synchronome Astronomical slaves, there are a number of images in there of both dial and movemnets.

Regards

Jim


Re: Pallet design

Ian Lonsdale
 

For Jurgen and Ken,

 

File is on its way as requested

 

You should get a link to WeTransfer in your email shortly

 

Just follow the link and that will allow you to download the PDF

 

Kind regards

Ian Lonsdale

 

From: synchronome1@groups.io <synchronome1@groups.io> On Behalf Of Jürgen Hoefeld
Sent: 11 January 2019 11:42
To: synchronome1@groups.io
Subject: Re: [synchronomeelectricclock] Pallet design

 

Hi Ian,

do you think it would be possible to send this file also to me?

 

Thank you very much in advance.

 

Yours, 

Juergen 

 

Juergen Hoefeld

Aachen, Germany

 

Am Fr., 11. Jan. 2019 um 11:53 Uhr schrieb Ian Lonsdale <ian.lonsdale@...>:

John,

 

The extract came from a series of articles published in Engineering in Miniature between Jan 1987 to May 1988

 

I can send the complete series in PDF (28mb) to you via WeTransfer.com if you want

 

Regards

Ian Lonsdale

 

From: synchronome1@groups.io <synchronome1@groups.io> On Behalf Of John Haine
Sent: 10 January 2019 20:37
To: synchronome1@groups.io
Subject: Re: [synchronomeelectricclock] Pallet design

 

Wow!  Thanks for all the quick replies.

Ian, noted that the ideal shape is probably not going to work any better.  Even the "ideal" shape is based on the notion that a raised-sine impulse waveform is optimum, with no real reason why.  As I have a little CNC mill I could form the shape almost as easily as the circular arc.

Peter, I think those pages are almost the same as what I have in "Electric Clocks and How to Make Them" - again the drawing lacks one dimension.

Ian, thanks for that article - very useful!  I think that is from HJ?  Could you say when it was published please?  Now that HJ is online from 1858 to 2000 I should be able to download the whole series.

Geoff, "HSN" is a newsletter published by the NAWCC, sort of the American equivalent of the BHI, it's for oddities like me who still find the physics of pendulums and things interesting.  Not a very wide circulation I fear.

Thanks again all - I'm sure I'll have many more questions.

John.


Re: Magneta and also Bowell

James Kelly
 

Hi James,

Thanks for the additional information, it must have been a very interesting period with companies merging and creating transitional models before they hit on a winning design, it certainly gives us enthusiasts plenty to lookout for and talk about,

Regards

Jim


Re: putting clocks on forwards or backwards

Stuart Baskill
 

When I worked for Gents and had to advance a clock system after a repair etc,I used to put the instructions book that was kept in the case down the side.This dampened out the increased swing and stopped the pendulum smashing into the case.I tied the string down.If it was an old system, or it only needed advancing a small amount,I pulled the string only on alternative swings which gave the slave movements twice as long to operate and stopped them missing pulses if they stuck a bit.It was better than adjusting 500 slave clocks individually!!  If they were hopelessly different times I used to find the most inaccessible clock and advance that to correct time and then alter the others by hand.Gent stopped bothering with clocks around 1990 when they concentrated on fire alarm systems.

On ‎Thursday‎, ‎10‎ ‎January‎ ‎2019‎ ‎22‎:‎32‎:‎16‎ ‎GMT, RICHARD ADAMEK via Groups.Io <oldenginehouse@...> wrote:


As a practical suggestion, only the Gents runs permanently so when setting it on I have a couple of bits of foam which normally lay on the floor, I stand one either side of the pendulum bob so as the swing increases they damp any excess out nicely.

It was removed from the local Tech and replaced by quarts clocks, between battery failures, cost, vandalism and theft they collected the whole lot in again and issued only for exams, staff & students own watches catering for all other timekeeping purposes, I suspect many other places did the same.

Best regs

Richard


On Thursday, 10 January 2019, 21:47:43 GMT, Geoff via Groups.Io <urjoking_uk@...> wrote:


I used to have to visit master and slave clock sites and step on or stop for an hour, clock systems. Putting back was easy, just stop them for an hour. However, stepping on an hour was not so easy. With synchronome, the pendulum starts banging the case when you set it to pulse continually. You have to stop then and on some clock systems, you had to manually step the clock on by hand. If you slightly jerked or made an irregular pulse, there would be some clocks out of step! Then you would have to get big ladders to adjust the wrong clocks! Out of interest, what do people do now with lots of quartz clocks around? I presume they have to visit EVERY clock??........The old system was easier wasn't it?


Re: Pallet design

Ken Strauss
 

I would also appreciate a copy.

 

From: synchronome1@groups.io [mailto:synchronome1@groups.io] On Behalf Of Jürgen Hoefeld
Sent: Friday, January 11, 2019 6:42 AM
To: synchronome1@groups.io
Subject: Re: [synchronomeelectricclock] Pallet design

 

Hi Ian,

do you think it would be possible to send this file also to me?

 

Thank you very much in advance.

 

Yours, 

Juergen 

 

Juergen Hoefeld

Aachen, Germany

 

Am Fr., 11. Jan. 2019 um 11:53 Uhr schrieb Ian Lonsdale <ian.lonsdale@...>:

John,

 

The extract came from a series of articles published in Engineering in Miniature between Jan 1987 to May 1988

 

I can send the complete series in PDF (28mb) to you via WeTransfer.com if you want

 

Regards

Ian Lonsdale

 

From: synchronome1@groups.io <synchronome1@groups.io> On Behalf Of John Haine
Sent: 10 January 2019 20:37
To: synchronome1@groups.io
Subject: Re: [synchronomeelectricclock] Pallet design

 

Wow!  Thanks for all the quick replies.

Ian, noted that the ideal shape is probably not going to work any better.  Even the "ideal" shape is based on the notion that a raised-sine impulse waveform is optimum, with no real reason why.  As I have a little CNC mill I could form the shape almost as easily as the circular arc.

Peter, I think those pages are almost the same as what I have in "Electric Clocks and How to Make Them" - again the drawing lacks one dimension.

Ian, thanks for that article - very useful!  I think that is from HJ?  Could you say when it was published please?  Now that HJ is online from 1858 to 2000 I should be able to download the whole series.

Geoff, "HSN" is a newsletter published by the NAWCC, sort of the American equivalent of the BHI, it's for oddities like me who still find the physics of pendulums and things interesting.  Not a very wide circulation I fear.

Thanks again all - I'm sure I'll have many more questions.

John.


Re: Pallet design

Steve Berger
 

Hi John,
I always wondered what in the world was it doing in the deserts of Arizona. Guess that’s why we keep searching.
Steve

On Jan 11, 2019, at 6:39 AM, John Hubert <jfphubert@...> wrote:

One like that (but complete) sold at Gardiner Houlgates sale on 25th October 2018 as lot 1152.



On 11 Jan 2019, at 13:35, Steve Berger <info@...> wrote:

Here's one I found at a flea market in Phoenix, Arizona with missing movement parts.
Steve 
AZ, USA

<synchronome.jpg>
On Jan 11, 2019, at 3:53 AM, Ian Lonsdale <ian.lonsdale@...> wrote:

John,
 
The extract came from a series of articles published in Engineering in Miniature between Jan 1987 to May 1988
 
I can send the complete series in PDF (28mb) to you via WeTransfer.com if you want
 
Regards
Ian Lonsdale
 
From: synchronome1@groups.io <synchronome1@groups.io> On Behalf Of John Haine
Sent: 10 January 2019 20:37
To: synchronome1@groups.io
Subject: Re: [synchronomeelectricclock] Pallet design
 
Wow!  Thanks for all the quick replies.

Ian, noted that the ideal shape is probably not going to work any better.  Even the "ideal" shape is based on the notion that a raised-sine impulse waveform is optimum, with no real reason why.  As I have a little CNC mill I could form the shape almost as easily as the circular arc.

Peter, I think those pages are almost the same as what I have in "Electric Clocks and How to Make Them" - again the drawing lacks one dimension.

Ian, thanks for that article - very useful!  I think that is from HJ?  Could you say when it was published please?  Now that HJ is online from 1858 to 2000 I should be able to download the whole series.

Geoff, "HSN" is a newsletter published by the NAWCC, sort of the American equivalent of the BHI, it's for oddities like me who still find the physics of pendulums and things interesting.  Not a very wide circulation I fear.

Thanks again all - I'm sure I'll have many more questions.

John. 





Re: Pallet design

John Hubert
 

One like that (but complete) sold at Gardiner Houlgates sale on 25th October 2018 as lot 1152.



On 11 Jan 2019, at 13:35, Steve Berger <info@...> wrote:

Here's one I found at a flea market in Phoenix, Arizona with missing movement parts.
Steve 
AZ, USA

<synchronome.jpg>
On Jan 11, 2019, at 3:53 AM, Ian Lonsdale <ian.lonsdale@...> wrote:

John,
 
The extract came from a series of articles published in Engineering in Miniature between Jan 1987 to May 1988
 
I can send the complete series in PDF (28mb) to you via WeTransfer.com if you want
 
Regards
Ian Lonsdale
 
From: synchronome1@groups.io <synchronome1@groups.io> On Behalf Of John Haine
Sent: 10 January 2019 20:37
To: synchronome1@groups.io
Subject: Re: [synchronomeelectricclock] Pallet design
 
Wow!  Thanks for all the quick replies.

Ian, noted that the ideal shape is probably not going to work any better.  Even the "ideal" shape is based on the notion that a raised-sine impulse waveform is optimum, with no real reason why.  As I have a little CNC mill I could form the shape almost as easily as the circular arc.

Peter, I think those pages are almost the same as what I have in "Electric Clocks and How to Make Them" - again the drawing lacks one dimension.

Ian, thanks for that article - very useful!  I think that is from HJ?  Could you say when it was published please?  Now that HJ is online from 1858 to 2000 I should be able to download the whole series.

Geoff, "HSN" is a newsletter published by the NAWCC, sort of the American equivalent of the BHI, it's for oddities like me who still find the physics of pendulums and things interesting.  Not a very wide circulation I fear.

Thanks again all - I'm sure I'll have many more questions.

John. 




Re: Pallet design

Steve Berger
 

Here's one I found at a flea market in Phoenix, Arizona with missing movement parts.
Steve 
AZ, USA


On Jan 11, 2019, at 3:53 AM, Ian Lonsdale <ian.lonsdale@...> wrote:

John,
 
The extract came from a series of articles published in Engineering in Miniature between Jan 1987 to May 1988
 
I can send the complete series in PDF (28mb) to you via WeTransfer.com if you want
 
Regards
Ian Lonsdale
 
From: synchronome1@groups.io <synchronome1@groups.io> On Behalf Of John Haine
Sent: 10 January 2019 20:37
To: synchronome1@groups.io
Subject: Re: [synchronomeelectricclock] Pallet design
 
Wow!  Thanks for all the quick replies.

Ian, noted that the ideal shape is probably not going to work any better.  Even the "ideal" shape is based on the notion that a raised-sine impulse waveform is optimum, with no real reason why.  As I have a little CNC mill I could form the shape almost as easily as the circular arc.

Peter, I think those pages are almost the same as what I have in "Electric Clocks and How to Make Them" - again the drawing lacks one dimension.

Ian, thanks for that article - very useful!  I think that is from HJ?  Could you say when it was published please?  Now that HJ is online from 1858 to 2000 I should be able to download the whole series.

Geoff, "HSN" is a newsletter published by the NAWCC, sort of the American equivalent of the BHI, it's for oddities like me who still find the physics of pendulums and things interesting.  Not a very wide circulation I fear.

Thanks again all - I'm sure I'll have many more questions.

John. 



Re: Pallet design

Jürgen Hoefeld
 

Hi Ian,
do you think it would be possible to send this file also to me?

Thank you very much in advance.

Yours, 
Juergen 

Juergen Hoefeld
Aachen, Germany

Am Fr., 11. Jan. 2019 um 11:53 Uhr schrieb Ian Lonsdale <ian.lonsdale@...>:

John,

 

The extract came from a series of articles published in Engineering in Miniature between Jan 1987 to May 1988

 

I can send the complete series in PDF (28mb) to you via WeTransfer.com if you want

 

Regards

Ian Lonsdale

 

From: synchronome1@groups.io <synchronome1@groups.io> On Behalf Of John Haine
Sent: 10 January 2019 20:37
To: synchronome1@groups.io
Subject: Re: [synchronomeelectricclock] Pallet design

 

Wow!  Thanks for all the quick replies.

Ian, noted that the ideal shape is probably not going to work any better.  Even the "ideal" shape is based on the notion that a raised-sine impulse waveform is optimum, with no real reason why.  As I have a little CNC mill I could form the shape almost as easily as the circular arc.

Peter, I think those pages are almost the same as what I have in "Electric Clocks and How to Make Them" - again the drawing lacks one dimension.

Ian, thanks for that article - very useful!  I think that is from HJ?  Could you say when it was published please?  Now that HJ is online from 1858 to 2000 I should be able to download the whole series.

Geoff, "HSN" is a newsletter published by the NAWCC, sort of the American equivalent of the BHI, it's for oddities like me who still find the physics of pendulums and things interesting.  Not a very wide circulation I fear.

Thanks again all - I'm sure I'll have many more questions.

John.

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