GRIDIRONS AT LIVERPOOL.
491
supposing each vessel to be uniformly supported througliout her entire
length.
The following table illustrâtes the amount of overhang in typical ships
of the present day :—
TABLE XXXVI.
Name of Vessel. Extreme Length. Overhang. Koel. Nett Registered Tonnage.
Forward. Aft. Kind. Size.
Cevic, . Feet. 520 Feet. 52 Feet. 41 Plate, Inches. 10 x 3 5,402
Georgie, 570 52 361 10 X 3 6,570
Taurie,. . . 476 52 8 10 x 3 3,670
Lake Superior, Manchester City, . 415 25 Bar, 51 x 9 2,897
461 55 45 3,727
Cymric, 600 52 331 Plate, 12 x 3 8,508
Etruria, 520 95 Bar, 6 x 10 3,690
Teutonic, 580 781 35 Plate, 17 x 3 4,269
Campania, . 620 95 4,973
Cuhc, . 444 421 10 Bar, 51 x 9 3,122
Parisian, 455 271 3,385
Aurania, 488 50 10 Bar, 7 X 10 4,029
Oceanic, 705 871 40 Plate, 181 x 31 6,916
Winefredian, 570 55 11 x 3 6,816
New England, 570 55 15 12 x 3 7,416 6,129
Norseman, . 510 421 12 10 x 3
Afric, . 570 45 13 12 x 3 7,804
Ivernia, 600 80 30 9,052
Celtic, . 704 62J 321 Plate, isi x 3J 13,448
Gridirons at Liverpool.
There are two gridirons existing at Liverpool. One, in a recess at the
Clarence Graving Dock Basin, has a length of 313 feet 6 inches and a breadth
of 25 feet 6 inches. The logs or blocks (fig. 482) are 11 inches wide by
Fig. 482. —Gridiron at Liverpool.
14 inches deep, laid 4| feet apart, centre to centre, upon masonry blocks on
a concrete foundation. There is a fall of 2 feet 5 inches in the length of the
gridiron, the lower end of which is 20 feet below high water of ordinary
spring tides. The other gridiron is at the King’s Pier, and has a length of
509 feet and a breadth of 26 feet. The blocks in this case are level
throughout.