...construction, such as the care now taken may be expected to ensure, a less strength would be sufficient ; or rather, allowing the same strength, an engine of 14 or 16 tons might be passed over with the greatest confidence. By referring to the observed results in the Appendix, it will be seen, that...

...construction, such as the care now taken may be expected to ensure, a less strength would be sufficient ; or rather, allowing the same strength, an engine of 14 or 16 tons might be passed over with the greatest confidence. " By referring to the observed results in the Appendix, it will be seen, that...

...construction, such as the care now taken may be expected to ensure, a less strength would be sufficient; or rather, allowing the same strength, an engine of 14 or 16 tons might be passed over with the greatest confidence. " By referring to the observed results in the Appendix, it will be seen, that...

...be double that of the mean strain, or load. In his first report, he thought from 10 to 20 per cent, would be sufficient; that is, for a 12-ton engine,...to recommend that the section of an iron rail for a 5-feet bearing, with strength 7 tons, should not exceed 5 inches in depth ; that the head ought not...

...In his first report, he thought from 10 to 20 per cent, would be sufficient; that is, for a 12-tou engine, as the weight is at present distributed, a...hour, 7 tons would allow a surplus strength of 16 percent, beyond double the mean strain. The deductions from his experiments led him to recommend that...

...be double that of the mean strain or load. In his first report, he thought from 10 to 20 per cent. would be sufficient.; that is, for a 12-ton engine,...with a velocity of about 35 miles per hour, 7 tons w«uld allow a surplus strength of 16 per cent. beyond double the mean strain. The deductions from...