• Important Executive Director Announcement from the NAWCC

    The NAWCC Board of Directors is pleased to announce that Mr. Rory McEvoy has been named Executive Director of the NAWCC. Rory is an internationally renowned horological scholar and comes to the NAWCC with strong credentials that solidly align with our education, fundraising, and membership growth objectives. He has a postgraduate degree in the conservation and restoration of antique clocks from West Dean College, and throughout his career, he has had the opportunity to handle some of the world’s most important horological artifacts, including longitude timekeepers by Harrison, Kendall, and Mudge.

    Rory formerly worked as Curator of Horology at the Royal Observatory, Greenwich, where his role included day-to-day management of research and digitization projects, writing, public speaking, conservation, convening conferences, exhibition work, and development of acquisition/disposal and collection care policies. In addition, he has worked as a horological specialist at Bonhams in London, where he cataloged and handled many rare timepieces and built important relationships with collectors, buyers, and sellers. Most recently, Rory has used his talents to share his love of horology at the university level by teaching horological theory, history, and the practical repair and making of clocks and watches at Birmingham City University.

    Rory is a British citizen and currently resides in the UK. Pre-COVID-19, Rory and his wife, Kaai, visited HQ in Columbia, Pennsylvania, where they met with staff, spent time in the Museum and Library & Research Center, and toured the area. Rory and Kaai will be relocating to the area as soon as the immigration challenges and travel restrictions due to COVID-19 permit.

    Some of you may already be familiar with Rory as he is also a well-known author and lecturer. His recent publications include the book Harrison Decoded: Towards a Perfect Pendulum Clock, which he edited with Jonathan Betts, and the article “George Graham and the Orrery” in the journal Nuncius.

    Until Rory’s relocation to the United States is complete, he will be working closely with an on-boarding team assembled by the NAWCC Board of Directors to introduce him to the opportunities and challenges before us and to ensure a smooth transition. Rory will be participating in strategic and financial planning immediately, which will allow him to hit the ground running when he arrives in Columbia

    You can read more about Rory McEvoy and this exciting announcement in the upcoming March/April issue of the Watch & Clock Bulletin.

    Please join the entire Board and staff in welcoming Rory to the NAWCC community.

Another watchmakers lathe

Dells

NAWCC Member
Oct 18, 2019
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Hi all
I have been looking for a cross slide for my IME watchmakers lathe but it seems they are as rare as rocking horse poo, so I have purchased another watchmakers lathe including cross slide and other parts, some I know what they are for and some I don’t.

so If the knowledgeable people on here could help it would be much appreciated,

firstly I can’t find a makers name on it although most of the collets measure very close to Derbyshire and the very top of the bed measures 1 and 15/32” or 36.5mm, and it has had an extra indexing plate fitted and I know one of the brass parts Is the mount for the indexing pin

second the two black and brass poles have two pulley wheels on top of one of them I haven’t a clue what they are for.
Also the thing that looks a bit like a top slide but not sure what that is .

And last but not least various other handles and things plus a round knurled ring with two grub screws.

many thanks Dell
09452018-F400-49C5-A60F-B735619C2190.jpeg C21DADA9-6CC3-4B03-9591-68E3A0A2C434.jpeg 683A6712-0FE6-4BF4-BB5F-CCF8967EA740.jpeg FC54E5A4-0547-4F96-A07D-E815C250E40C.jpeg 80FB5B9D-B4AA-43B5-B135-5D3BE280CD0F.jpeg 7DB8815D-6E69-4BC7-9BDA-E9CD4DF3175C.jpeg 72EA5B21-CE66-420F-A21F-D770DC0987D1.jpeg E9292959-7FA9-4F86-B954-D04221E4E46D.jpeg C116B946-6493-422E-A5A8-FA9C9B90DF31.jpeg 564FCFEF-BA78-4E25-8739-49D91A1E1ACD.jpeg 5721DD62-3D74-4C4D-9AD2-1A671587B0F9.jpeg 1344C1BA-05B3-4DC8-8D56-3C426F060E52.jpeg 65CCAEAF-4BD4-4537-821A-ABE50FA34513.jpeg
 

wefalck

Registered User
Mar 29, 2011
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Lots of shop-made parts, I would think, which then are not so easy to identify.

The brass-pole with pulleys could be an idler pulley to direct the belt towards a grinding or milling attachment on a vertical slide.

In second row, middle picture, there is an incomplete toolholder, the tumble-nut to adjust the height is missing.

In the third row, middle, picture, there is lever-operated tailstock

In the fourth row, last picture, there are two parts that have nothing to do with watchmaking lathes, they look like MT0 arbors.

The rest are bits and incomplete pieces.
 

Dells

NAWCC Member
Oct 18, 2019
424
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Hi wefelck thanks for reply
I thought it was some sort of tool holder as it sits on the bed but has a larger thread through bed than the cross slide I need to find a picture to see what it should look like.
There is a washer missing from tool holder on cross slide ( I have ordered a quick change tool holder ) .
I know about the leaver operated tailstock but I need to find out what fitting I need for Jacob chuck .
I added the picture of the arbors by mistake.
The picture next to headstock picture I think is the support and pin for the extra indexing plate as there is a threaded hole in end of bed.
The picture of the grey part with the long leaver on it also sits on the bed perfectly but that may be just coincidence.
Dell
 

wefalck

Registered User
Mar 29, 2011
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The quills of the lever-operated tailstocks of this kind would have a (proprietary) cone at the business end. Any chuck would have to have an arbor with the respective cone. However, these cones are often quite small, perhaps too small for the weight of a 'normal' Jacobs chuck.

Getting a QTP is probably a good move. Made one myself decades ago.

I am quite sure that the thingie with the long lever is a shoe for the bed. There probably was a T-bolt going through the whole with which to clamp-down another part. No idea what this could have been.
 

Dells

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Oct 18, 2019
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The Jacob chuck I have is very small 3/16 to zero so hopefully will be ok and I know what the arbor is like as I have an 8mm arbor that the chuck fits on ( for my IME lathe) but not sure how to go about measuring for the other end and I was going to make it from drill steel.
Dell
 

Dr. Jon

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Dec 14, 2001
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If the object of this effort is to get a cross slide I suggest you do the following.

1) Measure the height from the bed to the center of the lathe you want it for.

2) Look for cross slide with with the T slotted carrier top surface at least 5mm below this center .

3) Buy the slide with the understanding that you will need a show for it you can make or get made.

The shoe goes over the lathe bed, has a bed itself to hold the slide perpendicular to the lathe bed and has clearance for the cutter. The shoe is the items that mates the rest to the lathe,

Once you have a slide rest you get to look for a tool post and cutters,
 

Dells

NAWCC Member
Oct 18, 2019
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That was the reason I purchased this lathe it has a cross slide it was some of the other things that came with it that I am unsure of.
 

Dells

NAWCC Member
Oct 18, 2019
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Well I found out the lathe is a Derbyshire Magnus 10mm but with a Wolf Jahn cross slide , I found the stamping when I stripped it to get rid on the old crap paint job and clean it for repainting, as I have a few collets missing I can start looking now.
Thanks Dell
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wefalck

Registered User
Mar 29, 2011
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That's good news. Magnus collets pop up from time to time on the Internet. I think RDG-Tools in the UK sells 10 mm arbors for chucks etc. that may fit.
 

Dells

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Oct 18, 2019
424
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Thanks wefelck
I will have a look, I know there seems to be quite a few for sale in USA but not so much over here, am I correct in thinking Derbyshire lathes are still being made ?
If so it may be worth contacting them to see if they are still making 10mm collets because I am sure if they still are they would send some ( but probably very expensive)
Dell
 

Dells

NAWCC Member
Oct 18, 2019
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I sent an email to Derbyshire and Magnus collets are still available ( quite expensive) but something to think about.


I have it all cleaned and painted in 2K ready for rebuilding, but I am unsure what oil to use, with my IME the consensus was to use H32 transmission oil, has anyone any suggestions?

Dell
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Dells

NAWCC Member
Oct 18, 2019
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According to Derbyshire I should use 100 SSU lubricating oil anyone know what that is ?
Dell
 

gmorse

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Jan 7, 2011
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Hi Dell,

100 SSU lubricating oil
Saybolt Seconds Universal (or Saybolt Universal Seconds, 'SUS'), is a measure of kinetic viscosity, which is tabulated against other measuring schemes here, but for a lathe of that size I think a high-speed spindle oil could fit the bill. I use Castrol Hyspin E5 in my watchmaker's lathe.

Regards,

Graham
 

Dells

NAWCC Member
Oct 18, 2019
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Well all cleaned and rebuilt running very smoothly, there was no wear on spindle or bearings, contacted Derbyshire and they still make 10mm Magnus collets so that’s good, I only have about 6 missing but at £68 each plus postage plus import duty very expensive but S/hand are hard to find in UK (will have to buy a couple at a time ).
Just have to work out what the other bits are for now.
Dell
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Dells

NAWCC Member
Oct 18, 2019
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Anyone know the taper of the tailstock, or how to measure it.
Dell
 
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