 muckbars" (the result of first rolling from puddle blooms), cutting and piling them, reheating to a welding heat, rolling into bars, then cutting, piling, and reheating again, when they are rolled to the needed sizes. Compression pieces are single refined,...  Railroad Economics: Or, Notes, with Comments from a Tour Over Ohio Railways ... - Seite 28von Stillman Williams Robinson - 1882 - 131 SeitenVollansicht - Über dieses Buch
 | American Society of Mechanical Engineers - 1881 - 672 Seiten
...differ for different parts of bridges. Tension members are never made of anything but "double refined" iron, that is, iron that has been double rolled. This...its thickness without fracture; and when knicked and broken should show a fibrous structure. Such iron in the regular truss tension members is usually allowed... | |
 | 1882 - 566 Seiten
...the ultimate or elastic resistance of the iron adopted for the allowable strain for all parts of any one bridge. The factor of safety is " a thing that...its thickness without fracture; and when knicked and broken should show a fibrous structure. Such iron in the regular truss tension members is usually allowed... | |
| |
