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Cast Iron Slave clock
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Zero



Joined: 21 Apr 2015
Posts: 102

PostPosted: Sun Aug 21, 2016 4:03 pm    Post subject:  Reply with quote

I would never have believed you had glass in there unless you had told us.
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Donsayers



Joined: 24 Apr 2015
Posts: 70
Location: United Kingdom

PostPosted: Sun Aug 21, 2016 9:45 pm    Post subject: Reply with quote

Zero wrote:
I would never have believed you had glass in there unless you had told us.


It is positioned very carefully; low so it does not reflect the sky and with a backdrop of trees behind.
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Donsayers



Joined: 24 Apr 2015
Posts: 70
Location: United Kingdom

PostPosted: Sun Nov 06, 2016 10:07 pm    Post subject: Reply with quote

And it stopped. Been working fine til the cold weather struck. Seems like the oil thickened in the cold stopping the dial.

A clean and a re oil and it works fine.
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Zero



Joined: 21 Apr 2015
Posts: 102

PostPosted: Mon Nov 07, 2016 6:31 am    Post subject: Reply with quote

Donsayers wrote:
And it stopped. Been working fine til the cold weather struck. Seems like the oil thickened in the cold stopping the dial.

A clean and a re oil and it works fine.


Please tell us you didn't use whale oil?  Wink
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Donsayers



Joined: 24 Apr 2015
Posts: 70
Location: United Kingdom

PostPosted: Mon Nov 07, 2016 6:45 pm    Post subject: Reply with quote

Zero wrote:
Donsayers wrote:
And it stopped. Been working fine til the cold weather struck. Seems like the oil thickened in the cold stopping the dial.

A clean and a re oil and it works fine.


Please tell us you didn't use whale oil?  Wink


I do have a bottle of that somewhere inherited from my grandad. Never used it.

I don't believe in clock oils either. Clocks are just machines, so I use an appropriate grade of light spindle oil.

In the past before high quality mineral oils were commonly available, whale oils and the like, were the only oils that did not oxidise and gum up. Hence the origin and continuing mythology surrounding proper clock oils.
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Zero



Joined: 21 Apr 2015
Posts: 102

PostPosted: Tue Nov 08, 2016 6:10 am    Post subject: Reply with quote

You would not believe the state of many of the rural long case clocks I repaired.

Rancid chip fat seemed to be quite popular but not exclusively.   Cool
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hugozair



Joined: 21 Apr 2015
Posts: 134
Location: near Penzance UK

PostPosted: Tue Nov 08, 2016 10:07 am    Post subject: Reply with quote

Interesting that this topic should come up again now ! I've been looking at the prepared bit of 1mm dural (pic) for a fortnight and as yet haven't had the courage to start cutting out ! They are for the pilot dial of a MK1 'nome I bought on eBay a while ago..
It had been left in a works office after going out of service and had been fitted with a quartz movement and fake pendulum !! I recently got a 'nome movement of eBay with homemade hands,not of Synchronome design, and anyway they were bent and battered. But I've got the collets out of them and cleaned them for the new ones I'm making. I collected a 1972 Myford super7 last month so that came in handy right away..I ought to be able to make collets in future !



edit: You may wonder why this has appeared here Smile it's because of the new post alert which took me to the end of page 1  ..didn't notice the rest of the pages...doooh
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Donsayers



Joined: 24 Apr 2015
Posts: 70
Location: United Kingdom

PostPosted: Wed Jul 19, 2017 8:38 pm    Post subject: Reply with quote

That process look familiar.
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Zero



Joined: 21 Apr 2015
Posts: 102

PostPosted: Thu Jul 20, 2017 6:04 am    Post subject: Reply with quote

A piercing saw is best for that sort of job.
I have an adjustable nickel plated one and an Eclipse in navy blue paint.
The Eclipse is easier to use because it has a deeper throat.
It was great fun sawing out fancy hands for early 1700s long case clocks.
Many clocks seem to have been "brought up to date" with much later and skinnier "matching" hands.
A 19th Century form of "quartz movement/anorexia" disease?
I sawed them out of thick carbon steel to be ground, polished and then blued over a flame.
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hugozair



Joined: 21 Apr 2015
Posts: 134
Location: near Penzance UK

PostPosted: Thu Jul 20, 2017 8:25 am    Post subject: Reply with quote

They are still hanging around somewhere, still need cutting out !
Perhaps a job for the winter..Plenty of diversions this year but fiddling with the cHipp Toggle clock still continues..Thanks largely to Mike's raspberry Pi monitoring program which is amazing...Roger

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