Transactions of the North-East Coast Institution of Engineers and Shipbuilders Volume 5

Transactions of the North-East Coast Institution of Engineers and Shipbuilders Volume 5

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1889 edition. Excerpt: ...and size, and I have a strong opinion that by increasing the beam quite as much, if not more, danger is being incurred than there was before with the comparative smallness of beam to which attention was drawn." Well, gentlemen, having belonged to a tremendous roller for three years, and having noted her behaviour in storms when sails were set to steady her, and having been in the fleet off Finisterre when the "Captain" capsized through want of stability, the writer would prefer a few feet extra beam to the poor things afloat possessed of comparatively little beam, whose metacentric height is so small that they are quite unable to set a stitch of canvas to the wind when they are laden with homogeneous cargoes. But every man to his taste. The remarks, however, of Mr. Martell, who is a great authority on shipping matters, are worth remembering, as showing that positive danger may arise from great metacentric heights if no anti-rolling power be placed in the ship. We will now proceed to describe the wave-motor, Fig. 5, Plate X. This instrument, originally intended for another purpose, has been variously termed a wave-motor, a seismoscope, as well as an automatic gun-firing apparatus. S is a hollow sphere containing a liquid--say mercury; C is a cylinder containing an asbestos-packed piston. The cylinder and sphere are connected together by a pipe P. The piston rod, at its upper end, is attached to the lever L. (A connecting rod is omitted.) This lever works on the fulcrum F. On the left hand side of the fulcrum is a long spiral spring. C L is a clock connected by a spindle, shown in dotted lines, to a cylinder R, also shown in dotted lines. At P a pencil is fitted in the lever and made to project through the curved slot, more

Product details

  • Paperback
  • 189 x 246 x 7mm | 240g
  • United States
  • English
  • black & white illustrations
  • 1236810090
  • 9781236810090