Bøger af Harold C. Kelly

The timeless book about timekeeping-and how clocks and watches are made, and fixed.First written by the definitive expert in 1957, Watch Repair for Beginners is the ideal book for anyone who is fascinated by time and how we measure it-or wants to know how to fix their own watch. Learn what horology is; the basics of watch and clock repairing; the mechanics of a clock; how the wheels work; the difference between an automatic watch, a stop watch, and a chronograph; and so much more. With detailed black-and-white illustrations, this classic that touches on both the metaphysical and the mechanical is a must-read for any lover of horology.

2021 Reprint of the 1957 Edition. Full facsimile of the original edition and not reproduced with Optical Recognition Software. Originally published as Watch Repair by Kelly in 1957. Copiously illustrated with line engravings and photographs. First written by one of the definitive experts in 1957, this is the perfect beginning for anyone looking to learn about the theory and practice of watch and watch repair. Learn what horology is; the basics of watch and clock repairing; the mechanics of a clock; how the wheels work; the difference between an automatic watch, a stop watch, and a chronograph; and, so much more. This book was prepared for use as a home study course in horology and as a reference for the student in horological schools. It its preparation the author has kept in mind the practical and theoretical knowledge required by those organizations that prepare students for expertise in related fields. Chapters:Part 1. Practical horology: Introductory remarks to beginners -- Practical clock repairing -- Practical watch repairing -- Repair and adjustment problems taken from practice -- Part 2. The mechanics of horology: Wheel work of pendulum clocks -- wheel work of balance wheel clocks and watches -- Gearing -- Escapements for pendulum clocks -- Escapements for balance wheel timepieces -- Striking mechanisms -- Automatic watches -- Stop watches and chonographs -- Calendar mechanisms -- Part 3. Theoretical horology: A study of the pendulum -- A study of the balance and balance spring.