• 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.

Perton lathe info

Shawn Blake

Registered User
Sep 20, 2010
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Does anybody know anything about perton lathes.are they 8mm lathes?Does the bevel on the bedway continue the entire length of the bedway?I am looking at one on e-bay but can find no info on this machine not even on lathes.com.uk and this website is the most complete list of lathes that I know of.Any info will be greatly appreciated.Thank you....Shawn Blake
 

moe1942

Registered User
Oct 25, 2010
1,648
18
38
Alexandria, La
Country
Region
I have a Perton. It uses 8MM collets. The edges of the bed are the same from one end to the other. Not much info on them..

If you need pics or further info just ask..
 

watchmakersid

New Member
Jan 26, 2021
2
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41
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I have a Perton. It uses 8MM collets. The edges of the bed are the same from one end to the other. Not much info on them..

If you need pics or further info just ask..
Hi moe1942,

I am looking for more information about if Sherline WW metric collets will fit Perton or Webster Whitcomb lathe having thread size 0.268 - 0.625 mm(Please see attached collet size chart and Sherline collet information pdf)

I looked every where but could not find this information.

I am a newbie with respect to watchmaker lathes and contemplating on buying either Perton WW 8 mm or a American Watch Tool Co's Webster Whitcomb lathe.

Since there are no collets included with these lathes, I am looking for Sherline WW collets.

Sherline collets have thread size 0.275-40.

Any help with collet fittings with these lathes will be of immense help and would enable me to start my watchmaking journey.

Thanks and best regards,
Sid.

img0.gif
 

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Last edited:

wefalck

Registered User
Mar 29, 2011
607
51
28
Paris
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The diameter of the thread is less critical than the pitch. On most 8 mm lathes the pitch seems to be 40 TPI or 0.635 mm. The thread angle seems to be 55°. There seem to now again on the after-sales market taps for various makes, namely L&S and W&J, which are compatible with Sherline. If the Sherline collets don't fit your draw-bar, you could chase it with one of those taps. there is enough 'meat', as the outside diameter is normally a tad under 8 mm.
 

watchmakersid

New Member
Jan 26, 2021
2
0
1
41
Country
The diameter of the thread is less critical than the pitch. On most 8 mm lathes the pitch seems to be 40 TPI or 0.635 mm. The thread angle seems to be 55°. There seem to now again on the after-sales market taps for various makes, namely L&S and W&J, which are compatible with Sherline. If the Sherline collets don't fit your draw-bar, you could chase it with one of those taps. there is enough 'meat', as the outside diameter is normally a tad under 8 mm.
Hi wefalck,

This is a great piece of information. Thank you very much. This helps.
 

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