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Author Topic: What are these?  (Read 3535 times)

Offline Paul Hannaby

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What are these?
« on: September 12, 2016, 01:31:57 PM »
Does anyone know what these are for? There is a flat on both sides, I assume to use a spanner on them but that's all I know!
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Offline Philip Greenwood

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Re: What are these?
« Reply #1 on: September 12, 2016, 01:44:32 PM »
If a small hole through the middle then could be multi step pen mandrels.
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Offline seventhdevil

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Re: What are these?
« Reply #2 on: September 12, 2016, 02:52:08 PM »
any threads down the middle???
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Offline happy amateur

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Re: What are these?
« Reply #3 on: September 12, 2016, 04:42:44 PM »
Looks like light pull mandrels or similar with a direct thread for at a guess record size spindle thread

Fred
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Offline Les Symonds

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Re: What are these?
« Reply #4 on: September 12, 2016, 07:16:39 PM »
Quote from: happy amateur on September 12, 2016, 04:42:44 PM
Looks like light pull mandrels or similar with a direct thread for at a guess record size spindle thread

Fred
....I'm not so sure Fred...those barrels don't look as though they'd take much bigger than a 6mm to 8mm internal/female thread.
Les
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Offline GBF

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Re: What are these?
« Reply #5 on: September 12, 2016, 08:30:43 PM »
Is it possible they are nothing to do with woodturning  ::) ::) ::)

Regards George
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Offline edbanger

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Re: What are these?
« Reply #6 on: September 12, 2016, 10:47:08 PM »
look like flexible pipe adptors

Ed
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Offline Paul Hannaby

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Re: What are these?
« Reply #7 on: September 13, 2016, 12:21:27 AM »
There are no holes or threads, they are both solid and are around 10mm diameter at the widest point.

I'm guessing the flats might be to remove them from a push fit hole in something - perhaps a live centre / drive centre pair but it's only a guess! It seems odd to me that if the two are opposite ends of some sort of mandrel that they aren't matched.
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Offline Mark Hancock

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Re: What are these?
« Reply #8 on: September 13, 2016, 10:54:26 AM »
Quote from: Paul Hannaby on September 12, 2016, 01:31:57 PM
Does anyone know what these are for? There is a flat on both sides, I assume to use a spanner on them but that's all I know!

They are the very first pen turning drives from the early 90's. One goes in the headstock, usually a MT1, and the other goes in an interchangeable live centre. I still have my pair from that period. The flats are so you can remove them from the headstock and live centre.
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Offline Bryan Milham

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Re: What are these?
« Reply #9 on: September 13, 2016, 04:34:53 PM »
The hive mind Stokes again!
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Offline Paul Hannaby

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Re: What are these?
« Reply #10 on: September 14, 2016, 11:59:33 AM »
Hi Mark,
Thanks, I knew someone would have the answer!
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