 | Henry Law - 1855 - 180 páginas
...over it. The better to secure this uniform distribution of the pressure, the sills of one row are so laid as to break joints with the other ; and to prevent...road, experience having shown that this position is as favourable to their wear and tear as any other, and is otherwise the most economical. Their ends are... | |
 | Dennis Hart Mahan - 1867 - 428 páginas
...over it. The better to secure this uniform distribution of the pressure, the •ills of one row are so laid as to break joints with the other ; and to prevent the ends of the sills from yielding the usua. precaution is taken to place short sills at the joints, either beneath the main sills, or on... | |
 | Ohio State Board of Agriculture - 1870 - 736 páginas
...over it. The better to secure this uniform distribution of the pressure, the sills of one row are so laid as to break joints with the other; and to prevent...perpendicular to the axis of the road, experience having shown tliat this position is as favorable to their wear and tear as any other, and is otherwise the most... | |
 | Dennis Hart Mahan - 1871 - 468 páginas
...over it. The better to secure this uniform distribution of the prcssuie, the •ills of one row are so laid as to break joints with the other; and to prevent the ends of the sills from yielding the usua. precaution is taken to pla>.e short sills at the joints, either beneath the main sills, or on... | |
 | Spon E. & F.N., ltd - 1874 - 464 páginas
...secure this uniform distribution of the pressure, the sills of one row ore so laid as to break 2771 joints with the other, and to prevent the ends of...road, experience having shown that this position is more favourable to their wear and tear than any other, and is besides the most economical. Their ends... | |
 | Edward Spon, Oliver Byrne, Ernest Spon, Francis N. Spon - 1874 - 460 páginas
...the pressure, the bills of one row are so laid as to break joints with the other, and to prevent tho ends of the sills from yielding, the usual precaution...road, experience having shown that this position is more favourable to their wear mid tear than any other, and is besides the most economical. Tlieir ends... | |
 | Edward Spon - 1874 - 460 páginas
...over it. The better to secure this uniform distribution of the pressure, the sills of one row are во laid as to break joints with the other, and to prevent...usual precaution is taken to place short sills at tue joints, either beneath the main sills or on the same level with them. The boards are laid perpendicular... | |
 | Junius Brutus Wheeler - 1876 - 506 páginas
...the road, and having their centre lines about four feet apart, or two feet from the axis of the road. The boards are laid perpendicular to the axis of the...shown that this position is as favorable to their durability as any other and is also the most economical. When the road is new and well made, it offers... | |
 | Junius Brutus Wheeler - 1876 - 504 páginas
...the road, and having their centre lines about four feet apart, or two feet from the axis of the road. The boards are laid perpendicular to the axis of the...shown that this position is as favorable to their durability as any other and is also the most economical. When the road is new and well made, it offers... | |
 | Junius Brutus Wheeler - 1876 - 504 páginas
...laid lengthwise of the road, and having their centre lines about four feet apart, or two feet from the axis of the road. experience having shown that this position is as favorable to their durability as any other and is also the most economical. When the road is new and well made, it offers... | |
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BO laid as to break joints with the other ; and to prevent the ends of the sills from yielding the usual precaution is taken to place short sills at the joints, either beneath the main sills, or on the same level with them. The boards are laid perpendicular... 