Specification of Edward John Dent - Balance Springs for Timekeepers - No. 7067

Catalogue no: 1031
Dewey No: Subject(s): Patents
Author(s): Edward John Dent
Total pages: 3 Illustrations: None Language(s): English Publication date: 1836
Editor: Publisher: The Great Seal Patent Office
Dimensions: 290mm x 200mm Condition: Blue paper cover very fragile and worn
Related titles: Related library records:
Relates to "An Improvement of the Balance Springs and their Adjustments of Chronometers and other Timekeepers". This patent describes the use of a flexible varnish that would protect the balance spring from rust but not affect its performance. Malcolm Gardner, Horological Bookseller sticker on cover and first page.
Room location: Library Cabinet: Q Shelf: 4
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