The Marine Chronometer: Its History and Development |
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This book describes the John Harrison marine Chronometers H1 thru H4. The author also describes other key technology that enabled mechanical timepieces to keep accurate time in the harsh conditions of sailing ships. Includes drawings of key parts. Without accurate time keeping, enabling the determination of longitude, positioning at sea used to be very inaccurate resulting in many lost lives and ships. Book has been reprinted a few times. The story of the authors restoration of the Harrison clocks was described in book & film "Longitude".
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Common terms and phrases
accordingly accurate action adjustment Admiralty allowed alteration amount appears arbor Arnold arrangement auxiliary balance spring Berthoud Board brass carried cause centre chronometer clock compensation complete considerable construction correct course curb daily described designed detent device dial direction Earnshaw effect employed error escape wheel experiments extremely fact fitted force further fusee give given going Greenwich hand Harrison improvement impulse invention keep latter less lever longitude machine maker marine means mechanism method minute months motion move movement never noted observations obtained ordinary original pallet patented pattern period pins pivots Plate position possible practically present produced proposed published remarkable reward rims ship short shown similar slightly standard steel stop taken temperature timekeeper train trial turn varying vibration voyage watch weights winding
Bibliographic information
| Title | The Marine Chronometer: Its History and Development |
| Author | Rupert Thomas Gould |
| Publisher | J.D. Potter, 1923 |
| Length | 287 pages |
| Export Citation | BiBTeX EndNote RefMan |