The mariners' handbook; a convenient reference book for navigators, yachtsmen, and seamen of all classes (1906)
International Correspondence Schools, Roden, Ernest Konrad, 1866-, International Correspondence Schools. Pocketbook · Scranton, Pa. : International Textbook Co. · leaf 230
ebeen injured by some accident; such, for example, as theexplosion of a shell in the bore. The star gauge consists of a long brass sleeve made inseveral sections that can be screwed together to give thelength required for working at any part of the bore. Onthe end of tliis sleeve is a head carrying… … wedge is actuated by a long rodrunning inside the sleeve andhaving a handle at the outer end.This handle has a pointer thatmoves along a scale on the sleeve,indicating how far the rod (andhence the wedge) is moved in orout. The bevel of the wedgebeing known, this motion backand forth gives the…
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