Trains and Technology: The American Railroad in the Nineteenth Century, Svazek 4

Přední strana obálky
University of Delaware Press, 2001 - Počet stran: 215
This work presents a view of the history of American railroads in the nineteenth century from a somewhat different perspective. The maturation of the railroad is traced through an exposition of the railroad technology that was developed and applied during the period. Throughout the nineteenth century, a symbiotic relationship existed between railroading and technology, each dependent upon the state and progress of the other to a large degree. A great deal of new technology was created for the railroad, and the railroad, in turn, applied new technology as it became available. Volume four is about bridges and tunnels, and signals. An exposition of the various types of bridges, their foundations, and the materials of which they were made is included. Tunnels and marine railroad operations are treated also. The development of signal systems is an area that has been overlooked or neglected in the general literature but is fully covered here. The text of this volume is accompanied by 145 illustrations and accurate drawings of the equipment and appliances, many of which have not been published before outside of old technical journals. Anthony J. Bianculli is a mechanical engineer with extensive and varied experience in a Fortune 500 company.
 

Obsah

Bridges and Tunnels Introduction
13
Brief List of Terms
14
Bridges
16
Foundations
18
Beam or Girder Bridges
27
Arch Bridges
29
Truss Bridges
40
Trestles and Viaducts
59
Other Early Signal Forms
118
Banners and Banjos Early Block Signals
122
Clocks Blocks and Interlocks
134
Interlocking
141
Semaphore Signals Sentinels of Safety
151
Early American Semaphore Signals
156
Station Signals
161
Later Semaphore Signals
164

Suspension Bridges
68
Cantilever Bridges
71
Movable Bridges
76
Bridge Failures
77
Tunnels
86
Railroad Navies
100
Signals
107
Signals Introduction
109
HighballClear Track Ahead
116
Turnouts and Targets Switch Signals
171
Three Switch Stands
172
Looking High and Low
177
Views from the Observation Car
181
Notes
184
Bibliography
193
Index
198
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