Specification of Henry Brocklebank - Timekeepers - No. 564

Catalogue no: 1057
Dewey No: Subject(s): Patents
Author(s): Henry Brocklebank
Total pages: 6 Illustrations: 1 fold out Language(s): English Publication date: 1858
Editor: Publisher: The Great Seal Patent Office
Dimensions: 290mm x 200mm Condition: Blue paper cover fragile
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Notes:
Relates to; "Improvements in Chronometers, Watches and Timekeepers". The patent describes eight innovations as follows; 1. Bent or curved detent springs for chronometers 2. An improved method of applying the stop pin to the detent spring 3. The new use of a pin acting on the passing spring of a detent 4. A new method of fixing the jewel pallet in the roller 5. The construction of watches or timekeepers with a centre seconds hand mounted on a tube or collar placed over or outside the tube or boss of the hour hand 6. The improved method of generating motion to the centre seconds hand 7. The method of constructing independent seconds hand 8. The combination of the centre seconds and independent seconds hand
Room location: Library Cabinet: Q Shelf: 4
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