• 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.

New Addition - ITR Weight Driven Motor Wound Master Clock

Joe B

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May 2, 2018
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Just bought this guy! Should be able to have some more detailed photos and info on it in the next week or so... Could not find the model number or any ID plate. Does anyone recognize the model? Or have an estimate on the age?

Runs great but needs service and lots of small TLC.

It was from the estate of a higher level employee at ITR during the IBM conversion when they retired this clock to him.

This is the only photo I have for now:
Clock.jpg
 
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Burkhard Rasch

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Jun 1, 2007
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wow,that looks to be a great clock,congrats! Looking foreward to more pics and technical details!
Burkhard
 
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Joe B

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May 2, 2018
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Alright, so here it is - Cleaned up, serviced, and running! The only thing is that it currently seems to rewind every 12 hours or so, does anyone know if that seems right? I thought these rewound more like every 2-3 days but I could be wrong. The mercurial pendulum is perfectly in tact just removed in the photos for cleaning of the mercury and glass vials before reinstalling. Also - I have the original hands but they were not installed for the photo.

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Scot Traffis

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Apr 8, 2011
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your clock has a case just like Self Winding Clock Co. master clock. Nice clock, I like the motor rewind clocks they are very accurate timekeepers and run forever with very little upkeep
 
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Joe B

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May 2, 2018
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Thanks Scot, I hope to have it running completely by next week. As I was placing the mercury jars back in the pendulum I thankfully notices a crack in the suspension spring... so now I'm waiting for the new one to be delivered. Better that i found it that way though...
 
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Kevin W.

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Apr 11, 2002
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Great looking clock, i love those IBM clocks, i have a master IBM and i really like it, nice to see others around.
 

Scot Traffis

NAWCC Member
Apr 8, 2011
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I have four masters with mercury pendulums, two with glass jars and two with sealed metal tubes. I always worried about broken suspension springs so I always check them when ever I do any maintain on the clocks.
 
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paradise

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Jun 24, 2007
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I have the same case on a motor wind IBM and for all my looking it seems to me to be a Stromberg case with beveled glass all around and a 14 inch dial. I also have a few motor wound glass jar pendulum clocks. I rigged a setup somewhat similar to a Seth Thomas tower clock whereby if the suspension spring breaks it will catch the pendulum before it falls more than a quarter inch. I would imagine y'all can improvise something that does that and let me tell you it takes away a lot of the worry about mercury spill. It does not affect the movement of the pendulum at all.
Just look at a ST tower clock up near the suspension spring.
 
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Joe B

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May 2, 2018
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Alright so here's the update - I replaced the suspension spring with an exact replacement I found and replaced the mercury jars. The clock, at the fastest pendulum position, continues to run slow. I do notice that the mercury vials are a bit low on mercury, do you think that would case the clock to run too slow? (I've got to brush up on my physics)

IMG_8363.JPG
 

Joe B

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May 2, 2018
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Huh, so mine are a little low but I wouldn't think that would have such a large impact on running speed. Though I guess 2 more pounds of mercury would make a difference.
 

fdew

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Jul 12, 2007
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It isn’t the weight of the mercury that is throwing it off, it is the location of the center of mass of that mercury. If the jars are 1/2 full and are 7in tall then the center of your weight has moved down about 1 3/4 in. That is a lot.
 
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Ken Sykes

NAWCC Member
Feb 8, 2018
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I just acquired the same clock with just the “guts”, no case, weights or pendulum also the weight pulley on the right was missing so I am going to fabricate two new ones. I would appreciate any help in finding parts for this one.
 

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