foot \E*wide, and 0 incheshigh, are placed trans- *iversely between the i granite sleepers; the rp^^/^TT^--5* *\ ^rails Dare of wrought- t../ ■>:>/ >.^* . •-.iron, similar to the -« ^ - ^ V Liverpool ^and Man- a a Chester rail, weighing 40 lbs. per yard in 12, 15, and 18 feet lengths,fixed… … filled in with broken stone 1 ft. 6 in. deep, upon which are laid longitudinal timber sleepers B 5 by 8, with transverse bearers or tiesc 6 by 6,placed 3 ft. apart from centre to centre : on the top are caulked down continuous plates n of timber G inches square, with a rail or list on the inner…
Civil engineering · Architecture
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