Edward John Massey

Specification of Edward John Massey - Chronometers and other Timekeepers - No. 7678

Catalogue no: 1034
Dewey No: Subject(s): Patents
Author(s): Edward John Massey
Total pages: 3 Illustrations: 1 fold out Language(s): English Publication date: 1838
Editor: Publisher: The Great Seal Patent Office
Dimensions: 290mm x 200mm Condition: Blue cover fragile
Related titles: Related library records:
Notes:
Relates to; "Certain Improvements in Chronometers and other Timekeepers". Patent describes the use in chronometers of two detents on separate axles, the advantage claimed being able to use very delicate springs and of locking the pallet wheel very near the centre of the circular detent. Malcolm Gardner, Horological Bookseller sticker on front cover and first page. Malcolm Gardner, Horological Bookseller sticker on cover and first page.
Room location: Library Cabinet: Q Shelf: 4
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