International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 158
the line 5 is at Sta. 25 + ^0, making the length of the lastcourse 542 ft. In a similar manner, plat the notes for linesb and c, which are given in Art. 1353. 1352. To Lay Off an Angle by its Bearing.—By this method of laying off angles, the direction of each lineis referred to the magnetic… … Fig. 329. line giving the direction of the magnetic meridian is drawnthrough each station at which a bearing is taken. The direction of the meridian may be given by means ofthe ordinary T square and triangles, and the angles laidoff either by a protractor or by tangents. The use of Tsquare and…
Railroad engineering
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
