406 NOTES ON DOCKS AND DOCK CONSTRUCTION. 



for, the strength of chains or hawsers used to secure the vessels 

 to the wharf should be considered. The anchor-chain being the 



HALF SECTION 



BOLLARDS ROUND 



HAMILTON DOCK 



Fio. 355. 



SECTION 



HALF SECTION <->j [ HALF ELEVATION" 



rn 



DOUBLE BOLLARDS 

 8( 2% Centres 



ALONG WHARF WALL 

 FIG. 35G. 



FIG. 358. 



Fio. 357. 



BOLLARDS AND SNATCHBLOCKS. 



strongest carried by a ship is frequently used for mooring 

 purposes. The maximum strain that can be applied through 



