Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . oved. The grainside is kept uppermost, and is smartly brushed with a stiff hair-brush, using at the same timeplenty of water, when the slicker is again used to remove the water and loosened bloom. LEVER. See Statics. LEYDEN JAR. See Electric Machines, Static. LICKER-IN. See Cotton-spinning Machinery. LIFE-BOATS. Vessels constructed especially for the preservation of life in case of shipwreck. Shore Li ft-Boats.—The qualities necessary to these craft, as summed by the Royal National Lif
Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . oved. The grainside is kept uppermost, and is smartly brushed with a stiff hair-brush, using at the same timeplenty of water, when the slicker is again used to remove the water and loosened bloom. LEVER. See Statics. LEYDEN JAR. See Electric Machines, Static. LICKER-IN. See Cotton-spinning Machinery. LIFE-BOATS. Vessels constructed especially for the preservation of life in case of shipwreck. Shore Li ft-Boats.—The qualities necessary to these craft, as summed by the Royal National Life-Boat Institution of Great Britain, arc: 1, great lateral stability or resistance to upsetting; 2, speedagainst a heavy sea; 3, facility of launching or taking the shore; 4, immediate self-discharge ofany water breaking over her; 5, self-righting if upset; 6, strength; 7, storage room for a largenumber of passengers. Figs. 2770, 2777, and 2778 represent in detail one of the most improved forms of English life-boats. Fig. 277f, represents the sheer plan, Fig. 2777 the deck plan. At a are the delivering. tubes ; b, air-cases; c, well; d, air-cases; e, empty air-cases under deck ; /, fore air-compartment;g, after air-compartment; h, air-cases; k, mast-thwart; and s, air-scuttles. Figs, 2779, 2780, and2781 show respectively the sheer plan, deck plan, and cross-section of the American life-boat. Thisis an ordinary surf-boat of cedar, weighing about 700 lbs. The mode of conveying life-boats oncarriages to the beach for launching is shown in Fig. 27S2. A number of the principal varieties of life-boats in use in England are represented in Figs. 2783to 2794* Fig. 27S3 represents the North Country or improved Greathead plan, now nearly are the widest rowing life-boats in existence, some of them having as much as 10£ to 11 ft. * From a paper by Charles H. Beloe, C. E., in Scientific American, xxxi., 13. LIFE-BOATS. 289 beam with a length of 30 ft. At A are air-tight com
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Keywords: ., bookauthorbenjaminpark18491922, bookcentury1800, bookdecade1880
