RULES ADOPTED AT INTERNATIONAL CONFERENCE. 21 



Particular attention should be made to the following requirements : — 

 In Senate Document No. 463, Regulation Article XV, Section 2 — 



"No doors, sluice valves, manholes or access openings are permitted — (b) in 

 watertight transverse bulkheads dividing a cargo space from an adjoining cargo 

 space or from a reserve bunker, except as provided in paragraph 6 of this article. 



"6. Hinged watertight doors of specially heavy desig-n may be fitted above the 

 load waterline in bulkheads between cargo 'tween-deck spaces. They shall be closed 

 before the voyage commences, and kept closed while at sea by efficient closing 

 gear." 



In Regulation Article XVI, Openings in Vessel's Side — 



"9. In no case shall gangway, cargo, and coaling ports be fitted below the load 

 waterline." 



To further show the effect of the Convention requirements a typical passenger 

 and freight steamer as used on the west coast of the United States is herewith taken. 



Plate 6, profile J, shows the vessel as built. 



On Plate 7, profile L, the fioodable lengths have been shown, and a curve of 

 fioodable lengths given. 



Referring to Plate i. Curves of Factors of Subdivision, this vessel is taken as 

 conforming to curve B, and for her length of 420 feet we obtain a factor of sub- 

 division of .8. Multiplying the fioodable lengths shown on profile L by .8 we obtain 

 the spacing of the watertight bulkheads shown on profile M. 



As this disposition of watertight bulkheads does not suit the length of the ma- 

 chinery space a rearrangement is necessary, which is shown in profile N. By 

 arranging the engines and boilers in two separate watertight compartments we 

 obtain a better arrangement of bulkheads in the cargo holds. 



On Plate 6, profile K, the watertight bulkheads have been spaced as required by 

 the Department of Commerce, Steamboat-Inspection Service Rule III, Section 24, 

 Edition January 13, 19 14. 



Comparing profile J vessel as built with profile N, as required by the Conven- 

 tion, this vessel, if affected by the Convention, will require one more watertight 

 bulkhead. 



It should again be noted that this vessel as arranged on profile N will founder 

 if she has any two adjoining compartments flooded. The same remark applies to 

 profile K, where the watertight bulkheads are arranged according to the Steamboat- 

 Inspection Rules. 



CONCLUSION. 



Referring to Senate Document No. 463, the International Conference recognized 

 the great amount of work to be done in studying the Construction of vessels so as to 

 insure increased safety, and on pages 84, 85 and 86 a list of subjects is given which 

 shows the extent of the work of the Committee on Construction. 



