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Author's Note | 9 | |
Bridges and Tunnels | ||
1. | Bridges and Tunnels: Introduction | 13 |
List of Terms | 14 | |
2. | Bridges | 16 |
Wood or Stone or Iron? | 16 | |
Foundations | 18 | |
Beam or Girder Bridges | 27 | |
Arch Bridges | 29 | |
Truss Bridges | 40 | |
Trestles and Viaducts | 59 | |
Suspension Bridges | 68 | |
Cantilever Bridges | 71 | |
Movable Bridges | 76 | |
Bridge Failures | 85 | |
3. | Tunnels | 94 |
4. | Railroad Navies | 118 |
Signals | ||
5. | Signals: Introduction | 127 |
6. | Highball--Clear Track Ahead! | 134 |
Ball Signals | 134 | |
Other Early Signal Forms | 136 | |
7. | Banners and Banjos: Early Block Signals | 140 |
8. | Clocks, Blocks, and Interlocks | 152 |
Interlocking | 159 | |
9. | Semaphore Signals: Sentinels of Safety | 169 |
Early American Semaphore Signals | 174 | |
Station Signals | 179 | |
Later Semaphore Signals | 182 | |
10. | Turnouts and Targets: Switch Signals | 189 |
Three Switch Stands | 190 | |
Switch Signals: Looking High and Low | 195 | |
Conclusion: Views from the Observation Car | 199 | |
Notes | 202 | |
Bibliography | 211 | |
Index | 217 |
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Add Trains and technology, Bianculli is a mechanical engineer, now retired from a career involved with product and equipment design and development in a Fortune 500 company. A lifelong aficionado of railroads, Bianculli conducted research on the history and technical development of, Trains and technology to the inventory that you are selling on WonderClubX
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Add Trains and technology, Bianculli is a mechanical engineer, now retired from a career involved with product and equipment design and development in a Fortune 500 company. A lifelong aficionado of railroads, Bianculli conducted research on the history and technical development of, Trains and technology to your collection on WonderClub |