Transactions . recall that the John Bowes, builtat Palmers shipbuilding yard in 1857, was the first iron steamcollier built on the Tyne. This vessel was of the single-decktype, and until a year or two ago was regularly running fromthe Tyne in the coasting trade, when the writer believes that shewas sold abroad (being re-named the Transit), and is stillsailing under the Swedish flag. * Trans. Inst. M. E., 1908, vol. xxxvi., page 610. Various types of coal cargo-steamers. 255 The following is a list of the usual types of vessels suitablefor carrying coal:— (1) (a) Single-deck (old and new types)
Transactions . recall that the John Bowes, builtat Palmers shipbuilding yard in 1857, was the first iron steamcollier built on the Tyne. This vessel was of the single-decktype, and until a year or two ago was regularly running fromthe Tyne in the coasting trade, when the writer believes that shewas sold abroad (being re-named the Transit), and is stillsailing under the Swedish flag. * Trans. Inst. M. E., 1908, vol. xxxvi., page 610. Various types of coal cargo-steamers. 255 The following is a list of the usual types of vessels suitablefor carrying coal:— (1) (a) Single-deck (old and new types), (b) raised quarter-deck, (c) two or three decks ; (2) trunk type; (3) cantilever-framed type; (4) turret type; (5) monitor type; (6) vesselsarranged to unload by grab-gear; and (7) vessels arranged tounload by belt-mechanism. Types 2, 3, 4, and 5 are equally applicable as types 6 and7 to be fitted up with either grab-gearing or with belt-mechanism. Types 2 to 7 are what are commonly known as Fig. 1.—Trunk Type of Vessel. (1) Single-deck Type.—(a) The old single-deck was the firsttype of boat to be built. The difference between the old andthe improved type of single-deck boat is that the bulwarks arelower and the hatches only 2 or 2\ feet higher than the maindeck, as compared with at least 3 feet higher than the maindeck in the old type of boat. The new type also has less holdobstruction inside the vessel, which facilitates the handling ofthe cargo, and consequently slightly lessens the amount oftrimming required to be done at the time of loading absence of iron decks below the top (or weather) deck in (lie 25G VARIOUS TYPES OE COAL CARGO-STEAMERS. larger types of boat permits of greater deadweight being carried ;the absence of a steel deck usually involving an increase offraming, which reduces the tonnage while not materially reduc-ing the space, and thus makes a clear hold for the manipulationof bulk cargoes. (b) The raised quarter-deck t
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