Specification of Charles Hanson - Clocks and Watches - No. 10,876
|Catalogue no: 1043
|Author(s): Charles Hanson
|Total pages: 5
||Illustrations: 1 fold out
||Publication date: 1845
||Publisher: The Great Seal Patent Office
|Dimensions: 290mm x 200mm
||Condition: Blue paper cover fragile
||Related library records:
Relates to; "Certain Improvements in Clocks, Watches, or Timekeepers".
Several drawings on fold out page illustrating the patent described as follows;
"The novel construction of detent for locking the escapement wheel of timekeepers".
"The construction and arrangement of locking apparatus".
"The application of a spring to the verge staff in place of the rigid pallett."
Reprint of 1856
Malcolm Gardner, Horological Bookseller sticker on cover and first page.
|Room location: Library
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