2.5 hours of videotape documenting a succession of clock escapements invented by Richard F. Bond in the 19th century. Bond's invention was called isodynamic escapement.
Arrangement:
1 series: 5 items (original videotapes only).
Related Archival Materials:
Two of the three regulators videotaped are located in the Division of the History of Technology collections (now Division of Medicine and Science).
Provenance:
Made for the national Museum of American History, December 17, 1997.
Restrictions:
Collection is open for research but the original videos are stored off-site and special arrangements must be made to work with it. Some oral histories are restricted Contact the Archives Center for information at archivescenter@si.edu or 202-633-3270.
Mémoire sur le pendule et le balancier : considérés comme régulateurs des instruments à mesurer le temps, renfermant les résultats d'un grand nombre d'expériences sur les résistances que l'air oppose à la marche du pendule, sur le poids et la longueur qu'il mouvement de ces pendules / par J. Wagner
Watch and clock escapements : a complete study in theory and practice of the lever, cylinder and chronometer escapements, together with a brief account of the origin and evolution of the escapement in horology. / Compiled from the well-known escapement serials published in the Keystone. Nearly two hundred original illustrations
Watch escapements : being the 2nd part of A course in horology for use in the Swiss horological schools / by James C. Pellaton ; translation by S. Paris and ed. by Donald de Carle ; diagr. redrawn by Edward H. Price
Title:
Course in horology for use in the Swiss horological schools
