• 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.

What is the correct weight for each train of a 5-tube 3-weight Herschede. Cincinnati era.

dbertinot

Registered User
Feb 11, 2014
25
0
1
I purchased an older 5-tube, 3 weight Herschede clock last year. I restored the clock recently, but the weights were not correct. The time and strike seem to run ok, but the chime train needs a heavier weight. I was able to purchase the three weight shells from a Herschede electric clock, but each weight is only 5 pounds. The shells look correct as the chime one is much larger. Does anyone know the correct weight that should be in each shell? And how I might possibly achieve that. Thanks in advance.
 

Andy Dervan

Gibbs Literary Award
NAWCC Star Fellow
NAWCC Member
Oct 23, 2002
2,828
109
63
Country
Region
3 weight chiming hall clocks: typical time and strike weights are about 12 lbs., but chime weight is much heavier about 35 lbs.and is much larger.

Andy Dervan
 

Bruce Alexander

Sponsor
NAWCC Brass Member
Feb 22, 2010
7,251
749
113
Country
Region
Hello,

"Cincinnati era" covers quite a few models.

I have a 5-Bell Herschede Model 320 from circa 1956. I just checked the weights and came up with:

Strike = 8.3 pounds
Time = 11.2 pounds
Chime = 22 pounds

I did not open the Shells. Sometimes folks mess around with the weights by adding junk but as far as I know these are the original specs. I suspect that 9-Bell movements require a heavier chime weight, probably in the 30 pound neighborhood.

Herschede always seemed to tweak things so perhaps they adjusted the weights over time as well.

Of course if you're sure that your movement is in good running order and properly lubricated, you could start on the light side and gradually add weight until you achieve reliable operation.

Hope that helps.

Regards,

Bruce
 

Andy Dervan

Gibbs Literary Award
NAWCC Star Fellow
NAWCC Member
Oct 23, 2002
2,828
109
63
Country
Region
I was going by 9 tube Grand Rapids Clock and Mantle Co. clock for approximate train weights.

Lighter is always better as long as the clock will run and strike and chime properly.

Having it properly serviced - completely disassembled, serviced, cleaned, reassembled and properly lubricated is very important.

Andy Dervan
 

Dick Feldman

Registered User
Sep 1, 2000
2,395
153
63
Colorado, usa
Country
Region
The minimum weight a clock train will run on can be found by suspending a scale (similar to what fishermen use) between the clock pulley and something secured firmly below (a wire, a cable, etc) The lower end of the scale may be fastened to the floor of the case or a large ballast.
As you wind the train, you will stretch the scale and use the energy stored in the scale to run the train. When the train will no longer run, read the value on the scale. That is the minimum weight that will run the clock train. Add about 25% to that value for consistent reliable operation.
As was mentioned, the movement must be in fair shape as far as wear to be reliable under any conditions. Herschede movements are prone to wear excessively in the chime train due to large amounts of energy required and the power supplied (the heavy weight).
This method was proposed by Dr. David S. Goodman in his book, This Old Clock.

Best of luck,

Dick
 

brian fisher

NAWCC Member
Jan 20, 2017
1,721
428
83
houston, tx
Country
Region
in regard to a 5 tube, i think bruce alexander's advice is about as accurate as it gets. those are the numbers i would shoot for.

btw, herschede clocks are known for being cantankerous and unreliable once the bushings start to wear. 20-25 lbs should be the correct amount of weight for the chime train on this clock. if it takes more than that, most likely the movement is in need of a rebuild.
 

dbertinot

Registered User
Feb 11, 2014
25
0
1
in regard to a 5 tube, i think bruce alexander's advice is about as accurate as it gets. those are the numbers i would shoot for.

btw, herschede clocks are known for being cantankerous and unreliable once the bushings start to wear. 20-25 lbs should be the correct amount of weight for the chime train on this clock. if it takes more than that, most likely the movement is in need of a rebuild.
Thanks for all the advice. The movement was recently cleaned and re-bushed. I have temporary weights on the clock now. 9 pounds seem to work well on the strike and time trains. I only had a 14 pound weight on the chime and it was running slowly.
I did get the correct Herschede shells and I ordered a lot of lead shot to put the correct weight in the shells. It should be running very well soon.
thanks again.
 

Bruce Alexander

Sponsor
NAWCC Brass Member
Feb 22, 2010
7,251
749
113
Country
Region
I was wondering what model you have as well.
If you haven't identified it yet, please post some photos and maybe someone can help identify it for you.
Photos of the movement would be great too as Teaclocks has suggested...if you have some time to burn.
 
Know Your NAWCC Forums Rules!
RULES & GUIDELINES

Find member

Forum statistics

Threads
163,513
Messages
1,420,846
Members
84,916
Latest member
Gsader
Encyclopedia Pages
1,101
Total wiki contributions
2,857
Last edit
Aurora's 15 Ruby Jewel Movements by Greg Frauenhoff

514 Poplar Street
Columbia, PA 17512

Phone: 717-684-8261

Contact the Webmaster for perceived copyright infringement (DMCA Registration Number 1010287).

Copyright © National Association of Watch and Clock Collectors Inc (A 501c3 non-profit corporation). All Rights Reserved.

The NAWCC is dedicated to providing association services, promoting interest in and encouraging the collecting of clocks and watches including disseminating knowledge of the same.