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Fixing Eye bolt to old Lead longcase weight

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Chris TickTock25/01/2020 21:24:34
560 forum posts
39 photos

Hi, I have a longcase lead weight which arrived with the eye to hold it to the clock replaced with a steel nail. The nail is a little off centre.It has held suspended for years so is probably safe but an eye sore. The obvious difficult is one might expect the original eye sheered off and will tend to make drilling tricky.

As the weights match and are 18th century if I were to attempt a repair any suggestions.

Chris

old mart25/01/2020 21:34:44
1906 forum posts
151 photos

If the weight is a plain cylinder without one end rounded off, you might fit the new eyebolt to the other end and cut the nail off flush.

Bazyle25/01/2020 23:28:06
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If you can guess at the diameter of the original screw eye make a tube of that internal diameter out of silver steel, file teeth in the end and harden. You can then 'drill' down the outside of the broken screw. When deep enough the core can be pushed side to side to break it off and the hole refilled with lead or plumbers solder.

JasonB26/01/2020 07:00:33
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Drill a pair of holes diametrically opposite and bend up a "U" shape from steel rod say 3mm dia to fit them

Michael Gilligan26/01/2020 07:36:51
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Posted by Chris TickTock on 25/01/2020 21:24:34:

[…]

As the weights match and are 18th century if I were to attempt a repair any suggestions.

Chris

.

A photo of the good weight might help those attempting to assist you, Chris

MichaelG.

JasonB26/01/2020 07:50:23
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Plus a photo of the one with the nail, if it is a cut nail with a hole drilled across it then you could spend a little time filing the exposed end to look like an eye same as these two that were made from flat bar.

Chris TickTock26/01/2020 09:06:48
560 forum posts
39 photos

hi guys photos to help see the issue. Remnant of previously probably sheered eye bolt is the issue as it makes drilling difficult but no real alternative other than leave alone which goes against the grain with me if something is reasonably doable.

Chris

weights2.jpgweights1.jpg

JasonB26/01/2020 10:09:22
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Are you sure the original is an eye bolt and not just a bent wire that was cast in probably with some sort of bend at the other end so it would not pull out.

The simple tubular saw suggested would be easy going in lead then just bend up some steel to match an remelt the lead you took out and pour into the hole to set the replacement hook.

Chris TickTock26/01/2020 10:32:29
560 forum posts
39 photos
Posted by JasonB on 26/01/2020 10:09:22:

Are you sure the original is an eye bolt and not just a bent wire that was cast in probably with some sort of bend at the other end so it would not pull out.

The simple tubular saw suggested would be easy going in lead then just bend up some steel to match an remelt the lead you took out and pour into the hole to set the replacement hook.

not sure eye hook is original but that is the target to match to. will look at all posts later and comment and many thanks to everyone.

Chris

Michael Gilligan26/01/2020 10:42:03
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Posted by JasonB on 26/01/2020 10:09:22:

[…]

just a bent wire that was cast in probably with some sort of bend at the other end so it would not pull out.

.

Very likely, I would think

MichaelG.

Roger Hart26/01/2020 11:11:46
118 forum posts
27 photos

TBH this looks a job that is not worth going, leave it alone, the nail 'shows a bit of age'.

Not that easy to drill down with a hollow drill. Even it the drill does not snap off you are still left with how to get the core out. Very unlikely to drop out.

So unless this thing is a Tompion or a Knibb, leave it alone.

not done it yet26/01/2020 13:12:23
4872 forum posts
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Remove nail, test with a strong magnet, for inclusions, then decide on what might need to be done. Simple enough?

old mart26/01/2020 14:15:26
1906 forum posts
151 photos

It would have been normal practice to cast the steel part into the lead during manufacture. I always did that when casting my own fishing weights in plaster of paris.

duncan webster26/01/2020 14:16:23
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2733 forum posts
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Drill two holes on a diameter straddling the nail, then glue in a U shaped bit of wire. You could turn some grooves in the wire before you bend it to give the glue some grip

Chris TickTock26/01/2020 14:18:42
560 forum posts
39 photos
Posted by Roger Hart on 26/01/2020 11:11:46:

TBH this looks a job that is not worth going, leave it alone, the nail 'shows a bit of age'.

Not that easy to drill down with a hollow drill. Even it the drill does not snap off you are still left with how to get the core out. Very unlikely to drop out.

So unless this thing is a Tompion or a Knibb, leave it alone.

 

Thanks Roger and every poster. No the clock is a poor example of crasftsmanship or a good example of bad. The advise is leave it alone and yes i think I will here.

Having said that just for arguments sake I was told to rectify the issue and I could not source one that would do I could easily enough cast one. But anyone know how to seal and age it to look like the other?

Not sure on the law on this as lead as we now know is toxic so is it permissible to cast a replacement for a customer?

Duncan's idea takes my 1st Prize for solutions.

Chris

 

Edited By Chris TickTock on 26/01/2020 14:38:19

old mart26/01/2020 14:41:54
1906 forum posts
151 photos

Casting new weights using the old ones for the lead would be the best of all solutions if you have the means to do it. If using plaster of paris for this size of mould, the plaster should be in a wooden or metal box to avoid the danger of the mould splitting open as the lead is poured. The new hanger bolt is held in position and the lead poured around it. It is important for the mould to be dried thoroughly in a warm place for a week or so before casting, as any dampness will cause steam explosions and lead will be ejected like a small volcano with unpleasant results. It is likely that the mould will only last for one casting.

Edited By old mart on 26/01/2020 14:43:40

Chris TickTock26/01/2020 15:03:07
560 forum posts
39 photos

But what about sealing and aging?

chris

Bazyle26/01/2020 16:00:09
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Posted by old mart on 26/01/2020 14:41:54:

Casting new weights using the old ones for the lead would be the best of all solutions

Why not give the case a coat of nice while gloss paint while you are at it, and replace any tatty bits with mdf. surprise

Chris TickTock26/01/2020 16:28:20
560 forum posts
39 photos
Posted by Bazyle on 26/01/2020 16:00:09:
Posted by old mart on 26/01/2020 14:41:54:

Casting new weights using the old ones for the lead would be the best of all solutions

Why not give the case a coat of nice while gloss paint while you are at it, and replace any tatty bits with mdf. surprise

Already done that.smiley

chris

Chris TickTock26/01/2020 16:28:21
560 forum posts
39 photos
Posted by Bazyle on 26/01/2020 16:00:09:
Posted by old mart on 26/01/2020 14:41:54:

Casting new weights using the old ones for the lead would be the best of all solutions

Why not give the case a coat of nice while gloss paint while you are at it, and replace any tatty bits with mdf. surprise

Already done that.smiley

chris

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