Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 436
ge. To protect the head of the pileagainst brooming or splitting it is usual to drive on a tight-fitting wrought-iron ring or cap (Fig. 1008) by a blow ofthe hammer. In driving into compactgravel or shingle the point of the pileshould be protected with iron straps, asshown in Fig. 1009. Fig. 1010… … Fig. 1008. Fig. 1009. The site of the wall is first dredged to hard mud compacted with sand. The verticalpiles are then driven, and small cobble-stones mixed with coarse gravel put around andamong the piles to the height of the under side of the binding frames, and rip-rap stoneplaced outside the…
Mechanical drawing
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