USRE651E - Isviproveivient in hulls of steam vessels - Google Patents

Isviproveivient in hulls of steam vessels Download PDF


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United States
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English (en)
Eoss Winans
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  • the shape of the steamships 'heretofore constructed has been such that when changing from an upright toan inclined position ditferentgures, and consequently varying resistances, are presented to the act-ion of the wind and waves, respectively, which tend to keep the vessel constantly rolling.
  • the object of our invention is to diminish this variation of resistance to the winds and waves which causes a vessel to roll, and also to diminish those resistances which prevent the vessel when i carcened,or inclined to one side, from righting 7 or returning to its normal upright position, while at the same time we obtain increased strength and stowage, and a capacity for greater average speed.
  • We accomplish these objects by giving to the hull such a form that' the transverse section of the exterior in any part will be represented by a circle.
  • the form of hull which we propose for our vessel is that of an elongated pointed spindle, which may be constructed of any suitable ma terials and with any kind of framing that may be deemed advisable.
  • the cross-section of the hull is a circle, as shown in Fig. 3, and its longitudinal axial section, taken in any direction, is formed of two arcs of a circle, as shown in Figs. l and 2.
  • Such a hull when loaded may be immersed to or nearly up to the axis of the spindle.
  • the longitudinal section as represented by arcs of circles, but other curves or combinations of curves may be advanta geously employed, and, if thought preferable, they may be such that the vessel shall be sharper at one end than at the other, as shown in Fig. 5; or the central portion may be a cylinder and the ends bounded by cones with curved sides, giving a longitudinal section, such as is shown in Fig. 6, or the central portion may be a cylinder and the ends cones with straight sides, giving a longitudinal section similarto that shown in Fig. 7; but we do not deem this to be as good a form as those before mentioned.
  • Vessels of this form of hull might be steered in more convenient ways than by the use of the ordinary rudder.
  • One plan for this purpose is as follows: At some suitable point along the length of the vessel,either before or aft the center, a vertical shaft should be passed through astufiing-box in the bottom or through a pipe projecting from the bottom into the interior above the water-line. At the lower end of this shaft a blade of sufficient size should project, which should be symmetrical on both sides of the axis of the shaft, and suiticiently curved or sloped on its top to enable it to make an entire rotation without touching the curved bottom. More than one such rudder might be provided or placed in different positions. The upper end of the shaft should be connected with a filler-wheel or other steering apparatus.
  • a portion of the top of the hull may be fitted with hatches, dead-lights or other similar contrivances, capable of being opened and closed at pleasure.
  • spindle-shaped bodies both solid and hollow, have been called boats and have been used as mere iioats for various purposes-such, for example, as sustaining a bulky superstructure, as decks for freight and propelling machinery, and cabins for passengers in the navigation of rivers and other still waters; but since such spindle-shaped bodies or boats have never heretofore been by and in themselves adapted to the performance of all the functions of the hull of a vessel for navigating seas-such, for example, as receiving and affording accommodations for propelling machinery, freight, and passengers within themselves, in addition to Heating the sam e-such mere tloats cannot perform the oftice of our hull, and, besides, such floats and their said superstructures must be consideredl PTO BOYERS, Pn Duwsffion MISSING PAGE TEMPORARY NOTICE PATENTfgS-n/ n FOR ISSUE DATE HAS BEEN SCANNED, BUT WITH MISSING PAGE(S).



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