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ms ie MARINE REVIEW. : 7 for receiving the baggage and other appurtenances of passengers. - The principal object of the invention is to provide a pas- senger vessel, having large, commodious and airy cabins; which will be very speedy under steam, and which will be practically unsinkable. 'The principal novelties of the invention consist ofa metallic hull, made of substantially the same shape as that de- scribed in said letters patent, but with longer and finer lines, and a cabin mounted above the hull on preferably three rows of tur- rets, and extending almost the entire length thereof, in such a manner as to effectively strengthen and brace the hull against lateral strains, as will be described hereinafter. Figure 1, isa freq. 2. side elevation of the vessel; Hig. 2, a longitudinal sectional view, showing the cabin and engines removed; Fig. 3, a plan view of the hull with the cabin removed; Fig. 4, a front elevation, and Fig. 5, a cross sectional view. Corresponding parts are designa- ted by the same letters of reference. A is the hull of the vessel. This hull is made substantially like that described and claimed in said letters patent, with a curved top, or deck, straight sides, and curved bottom, with a long spoon-shaped bow, and a cut- away or skeged stern. 'This hull, as described in said letters patent, is to be made preferably of metal plates, riveted or other- wise secured to transverse ribs. 'The hull is provided with long- itudinal bulkheads a a, so as to divide the vessel into preferably three longitudinal sections. It will be understood, however, that any number of longitudinal bulkheads may be provided and that the vessel may be divided into any number of longitudinal sec- tions, or these bulkheads may be dispensed with entirely, if de- sired. 'Ihe vessel is also provided with cross bulkheads 6 4, which may be of any appropriate number. 'This vessel, as in the case of my improved tow boats, is provided with a water bottom B, having a heavy metallic top c, which forms a false bottom for the vessel. The longitudinal bulkheads extend from this false bottom c, directly to the top of the vessel, so as to divide the hull into a number of air-tight chambers. "T am aware that it is not new to provide a vessel with both longitudinal and cross bulkheads, but these bulkheads have here- tofore extended only from the bottom of the vessel toa point near the water line, so that if the vessel is damaged so as to fill at one side, or in case of a collision is rolled a considerable dis- tance to one side, the water will be allowed to flow over the top of the vessel and into thehull. By providing the hull with bulk- heads which extend directly from the top to the bottom of the vessel, no water will be allowed to enter the vessel, in case itas thrown out of its equilibrium. A very desirable arrangement of these bulkheads is to provide the hull with two longitudinal bulk- heads a a, running along the main portion of the hull to the ex- treme forward and rear cross bulkheads, so as to divide the hull into three parts at its main portion and to provide a single bulk- head running from the said cross bulkheads to or near the bow and stern, so as to divide these portions into one or two parts. d represents a horizontal deck, situated some distance beneath the top of the vessel and extending preferably from one extreme cross bulkhead to the other extreme cross bulkhead, except at the boiler and engine rooms, but it should be understood that this deck may extend a shorter distance or that it may extend from one end of the vessel to the other. Upon this deck are placed the second class cabins of the vessel and also the quarters for the crew, &c. CD, are the engine and boiler rooms. The en- gines and boilers may be of any approved construction and may be of any number. I prefer, however, to place an engine in each. longitudinal compartment, so that three screws may be operated. "In the drawings I have shown only one screw or propeller, as indicated in Fig. 1, andif need be only one screw may be used, but I prefer to use two or three screws, with preferably a large screw in the center and smaller screws on either side placed for- ward of the large screw. At the forward part of the vessel the cross bulkheads 4 6 extend from the false bottom c, to the deck d, as shown. But it will be understood that these cross bulkheads may extend at all points the entiredepth of the hull, or that they may extend from the false bottom c to the deck d. As inthecase of the vessel referred to in said letters patent, the present boat is provided at its extreme bow with a collision chamber e, so that in case the bow is damaged so as to admit water the collision chamber only will be filled. Near the bow and stern are placed two large metallicturrets H E, which are firmly riveted or other- wise secured to the top of the hull or upper deck. The forward turret E is preferably of an oval shape, in order that it may con- form to the shape of the bow, and the after turret E is preferably of the same shape, but an elliptical shape would answer. Smaller turrets F F are centrally located. in line with the turrets EF ~ and extend along the top of the hull as shown in Fig. 3. Ex- tending from the forward turret E to the rear turret E and firmly secured to the intermediate turrets F is a heavy metallic deck G, as shown in Fig. 2. This deck is supported at its outer edges upon the smaller turrets H H, which are arranged in pairs be- tween the turrets F F. It will be seen that the deck G acts in precisely the same way as the chord of an ordinary truss, so that the hull will be effectually protected against lateral strains. -- 'Secured to the top of the metallic deck G are the cabins I | J, which are to be of any suitable arrangement. Secured to the 'top of the cabin J is the pilot house K, within which is placed the - usual steering gear. Smoke stacks L, L from the boilers pass up through the central turrets F F, so as to be protected from the action of the waves, which sometimes pass over the lower part of thevessel. The hull is reached from the cabin I, through suitable stair-cases within the turrets. It will be evident that by mounting the cabin on turrets as I have described they, will be ~ free from all odors of bilge water, oil, machinery, cooking, &c.,. and will be always cool and airy, It will be observed also from an inspection of Fig. 5 that the top of the boat and the deck d constitute an arch and truss which will render the upper part of the vessel very strong, and that the bottom of the vessel and the false bottom c constitute another arch and truss which will seen that the top ot the vessel in a longitudinal direction and the » deck G constitute a double or parallel truss which strengthens the vessel longitudinally. "What I claim as new is as follows: First--In a vessel, a hull having an arched top and an arched bottom; with a deck d forming the chord or base of the arched top; a false bottom ¢ forming the chord or base of the arched bottom; and longitudinal and cross bulkheads a and 4 extending from the top of the hull to the said false bottom, substantially as set forth. Second--In a vessel, the combination with a hull, having an arched top and an arched bottom; with a deck d forming the chord or base of said arched top; a false bottom ¢ forming the chord or base of said arched bottom; and longitudinal and cross bulkheads a and 6 extending from the top of the hull tosaid false bottom ; of a deck G, mounted above the hull on turrets, and cabins I and J, mount- ed on said deck, substantially as set forth."