• 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.

Cannon Pinion on Gustav Becker

MJShaw

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Jan 3, 2021
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I am new to clock repairing and I'm working on a Gustav Becker clock & would appreciate some advice.

What does the "P64" and other markings on the clock tell of its age?

The clock is not chiming and I don't know why so I decided to investigate the mechanism. Does the GB mechanism have a chime silent lever?

After removing the hands and face and now reassembling it, I have found the cannon pinion is loose on the shaft. Turning the minute hand does not move the cannon pinion and so there is no movement of the hour hand as the minute hand is rotated.

The hour hand was quite tight on the hour wheel so I am concerned the cannon pinion may have become loose getting the hand off. The cannon pinion looks to be a solid brass pinion with two lugs on it and there does not appear to be a means to tighten it to the shaft.


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shutterbug

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Oct 19, 2005
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Can you see slipping where the minute and hour wheel connect? If the minute hand is very loose, it might potentially spin without moving the hour hand. We need to narrow this down a bit, so please observe what you can see slipping and let us know. Pictures of the offending part will help too. We need to know what exactly is slipping in order to advise properly.
 

MJShaw

Registered User
Jan 3, 2021
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The cannon pinion is loose on the center shaft. I think it should press onto the shoulder on the shaft and be fixed. Is it common practice to apply a glue or locktite to this pinion to prevent it coming loose? cannon.jpg
 

shutterbug

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Oct 19, 2005
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LocTite 609 (I think that's the number) would probably be strong enough to hold it. It's not the "Proper" approach to the problem though, and the next guy will have a devil of a time getting it off unless he knows what you did :) Metal bonding agents have really been improved in recent years, and are commonly used in manufacturing. We see their use more and more in clock repair too ... much to the chagrin of many of us ... but it's a reality that we have to accept - that "easy" fixes like that actually do work :)
Be sure you have a minute hand with a bushing. Otherwise you'll have to position the star precisely.
The best approach would be to knurl the arbor and put the gear back in place with a friction fit.
 
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