A Treatise on Naval Architecture and Ship-building; Or, An Exposition of the Elementary Principles Involved in the Science and Practice of Naval Construction

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J.B. Lippincott & Company, 1869 - 488 páginas
 

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Página 172 - And if the vessel has more than three decks, the tonnage of each space between decks, above the tonnage deck, shall be severally ascertained in the manner above described, and shall be added to the tonnage of the vessel, ascertained as aforesaid.
Página 169 - ... (average thickness) deducting from this length what is due to the rake of the bow in the thickness of the deck, and what is due to the...
Página 170 - ... at each point of division of the length as follows: Measure the depth at each point of division from a point at a distance of one-third of the round of the beam below such...
Página 172 - If the ship has a third deck the tonnage of the space between it and the tonnage deck shall be ascertained as follows: Measure in feet the inside length of the space at the middle of its height from the plank at the side of the stem to the...
Página 171 - No. 1 being at the extreme limit of the length at the bow, and the "last number at the extreme limit of the length at the stern...
Página 173 - ... breadths ; measure also the mean length of the space between the foremost and aftermost bulkheads or limits of its length, excluding such parts (if any) as are not actually occupied by or required for the proper working of the machinery...
Página 170 - ... area (except the first and last) by two ; add these products together, and to the sum add the first and last if they yield anything; multiply the quantity thus obtained by one-third of the common interval between the areas, and the product will be the cubical contents of the space under the tonnage deck...
Página 172 - ... and multiply by it the mean horizontal area ; divide the product by one hundred, and the quotient shall be deemed to be the tonnage of such space, and shall be added to the...
Página 170 - ... and also at the upper and lower points of the depth; number them from above as before; multiply the second, fourth, and sixth by...
Página 171 - ... multiply the whole sum by one.third of the common interval between the breadths, and the result will give, in superficial feet, the mean horizontal area of such space...

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