• 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.

Search results

  1. Wayne A

    Tomorrow's project.. corroded Wilmac

    I see your rust and raise! :) It will clean.
  2. Wayne A

    Suspension spring specs?

    Just checked a few Horolovar suspension spring sizes with a micrometer and they all are as close as I can measure .0165" wide. Not real easy to measure these but had read that they are uniform in width and its a method to identiy the Horolovar brand. Also they start out as the proper size wire...
  3. Wayne A

    Repairing of old Koma Clock

    Well then we move on to try something else. Have you experimented with the position of the fork below the upper block? The guide books close match for your clock calls for a 5mm gap between the fork and the upper block. I'd suggest trying to lower the fork to increase the gap to 6mm and give...
  4. Wayne A

    Repairing of old Koma Clock

    Well you indicated you replaced the mainspring with one a little shorter but how did the thickness compare to the original? Small changes in any dimension will make a difference in available power.
  5. Wayne A

    Repairing of old Koma Clock

    Correct, a weight driven clock using greater weight to overcome increased friction or wear.
  6. Wayne A

    Repairing of old Koma Clock

    I think any machine can be fixed with time and money. :) Beat setting is a little tedious and just a little off and the clock will not run.
  7. Wayne A

    Pin Pallet Repair

    Excellent! Heres the beading needles I use for Jum/7's, there 10 thousandths.
  8. Wayne A

    Repairing of old Koma Clock

    Ok it sounds like the the suspension spring is not a problem that could prevent the clock from running. Have you tried to adjust the beat with the new suspension spring?
  9. Wayne A

    Repairing of old Koma Clock

    That suspension spring may be a problem. Think your clock is close to the guides plate 1395B which has the suspension spring .89mm. Can you run a test with a stopwatch and time how long it takes the pendulum to make 8 rotations timed from stop to stop? Should be about one minute but if that...
  10. Wayne A

    Repairing of old Koma Clock

    Not a good idea long term.
  11. Wayne A

    Repairing of old Koma Clock

    Check it for notches in the fork. Also this is a fine adjustment you only need a small clearance, the thickness of a sheet of paper or less.
  12. Wayne A

    Repairing of old Koma Clock

    Those links worked for me. Yes definitely there is excessive play in the fork to pin. Also check that there is not a worn notch in the fork. Watching the escapment action it looks like it should work where its currently at.
  13. Wayne A

    Repairing of old Koma Clock

    Video links will not play for me.
  14. Wayne A

    Lathe cutting tools/accessories

    Justification is a funny thing when its a hobby. Have a number of hobbies and the only one that pays back is my vegetable garden and its by far the least expensive hobby I have ever had. An example, I fly model aircraft, helicopters and airplanes and in that hobby I've watched guys crash...
  15. Wayne A

    Lathe cutting tools/accessories

    Saw Jerry's post as well. Made sense to me to eliminate cutting tool sharpness as variable from the learning process. I picked up some micrograin carbide tools from Mcmaster Carr. Should last a very long time and seem to work great for this lathe noob. As much as I have to sharpen drill bits I'd...
  16. Wayne A

    Boley Lathe Parts

    Draw Bar.
  17. Wayne A

    Repairing of old Koma Clock

    1 an eccentric used to adjust pallet drops. Adjustment often not required. 2 dead beat Anchor. Anchor contacts the escape wheel with its two adjustable pallets often no adjustment required. Wire on end is called the pin. 3 its a fork 4 suspension bracket with saddle. Suspension spring is hung...
  18. Wayne A

    Pin Pallet Repair

    Anytime, also the jum/7 pallets are pressed in. I sand down the tip a half thousandth of the 10thou beading needle, then heat the brass with clean soldering iron, then freeze spray the pin just before quickly pushing it in. When I've pressed them in like this they go in with a audible squeak.
  19. Wayne A

    Pin Pallet Repair

    The pins sockets on the Jum7 are just under 10 thousandths so thats gonna be one tiny punch!

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