Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 439
e tops of the vertical piles, and onthe longitudinal caps of the bracing piles, reaching about halfway across the base-blocks, are placed and fastened. Oak treenails are used in all fast-enings. The small cobbles are then filled in around and among the piles to the top ofthe caps, and the rip-rap… … Fig. 1013. to the cross-timbers; above the water the timber is squared, the exterior wallspresenting a tight, smooth surface into which the cross-timbers are dovetailed. A quarantine station, built for the port of ]^ew York, on the west bank con-sists of an exterior wall of cribwork, of which Fig.…
Mechanical drawing
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