Specification of Joseph Anthony Berrollas - Watches - No. 5489

Catalogue no: 1028
Dewey No: Subject(s): Patents
Author(s): Joseph Anthony Berrollas
Total pages: 8 Illustrations: 1 fold out Language(s): English Publication date: 1827
Editor: Publisher: The Great Seal Patent Office
Dimensions: 290mm x 200mm Condition: Blue paper cover fragile and torn
Related titles: Related library records:
Notes:
Relating to; "A detached Alarum Watch". The patent describes the alarm innovations as follows; "the new combination of machinery which I have produced in the detent and its appendages, the elevator, the propellor, and the locker in the watch movement and the combined operation of these with the locking lever and its wire tail" Reprint of 1857
Room location: Library Cabinet: Q Shelf: 4
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