National Association of Watch and Clock Collectors, Inc.
Horological Science Chapter #161
Horological Science Newsletter
Issue 2002-4 September 2002
Bob Holmström, Editor, 2934 NW 53rd Drive, Portland, OR 97210 Phone: 503-292-3685, <firstname.lastname@example.org>
Bill Givens, Sec. &: Publisher, 3850 Ashford Dr., Eugene, OR 97405 Phone (H): 541-465-9311 <Lbanks@ix.netcom.com>
Everett Jones, Treas., Phone: 440-729-4811
Ernie Martt, Founding Editor, Phone: 440-247-6712, Phone: 440-247-6712 <email@example.com>
2 - 9 Gearing of the Strutt and Wigston Skeleton Clock by Graham White
10 - 18 A Finite Element Analysis of a Fedchenko Type Pendulum by Les P. Pook
19 Calculation of Effect of Moving Small Weight Up and Down on Pendulum Rod by Evan Edwards
20 Rock the boat - Humidity by Alan Emmerson
There will be joint meetings of the AHS- American Section and Horological Science at the NAWCC Seminar
Thursday evening, October 17, 2002,
7 pm-- Will Andrewes will give an illustrated talk on "French Clocks In American Collections."
Will is well known for having been the Curator of the Time Museum collection. He is also the author of
a splendid book on the 1993 Longitude Symposium, which he chaired.
9:30 pm-- Ernest Martt will talk on "Design of Missing Parts in a Dead-Beat Escapement." His
program uses MS Excel for rapid calculations. After these meetings there will be open discussion of member's
There are Rock the Boat items in this issue. These are meant to be comments no longer than half
a page on horological topics, including controversial ones, but not personal. This is a quick way to write
a short article, convey an important idea or ask a question.
The deadline for material for the next issue is November 15th.
Above: Drawing from Apians cosmographicus Liber of 1533, showing how a nocturnal is used to tell the
time at night from the Great Bear.
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