. American engineer . arc AD. This is also divided into the same num-ber of equal parts as AD. From these division points erect per-pendicular lines. Horizontal lines are then drawn from thepoints on MG and KF, which intersect the perpendicular linesfrom MJsl at the points O3, 6s, O4, 64, etc. These points lie onthe contour of the sheet and when joined by a smooth curvegive the layout of the outside sheet in its development. Thedevelopment of the inside sheet is obtained in a similar being the length of the arc BC. Perpendiculars are erected tained by laying off D^O, equal to FK or
. American engineer . arc AD. This is also divided into the same num-ber of equal parts as AD. From these division points erect per-pendicular lines. Horizontal lines are then drawn from thepoints on MG and KF, which intersect the perpendicular linesfrom MJsl at the points O3, 6s, O4, 64, etc. These points lie onthe contour of the sheet and when joined by a smooth curvegive the layout of the outside sheet in its development. Thedevelopment of the inside sheet is obtained in a similar being the length of the arc BC. Perpendiculars are erected tained by laying off D^O, equal to FK or MG. carrying the di-vision points c,, rf,, (,, etc., with it. Perpendicular lines areerected from these points and their intersections with the hori-zontal lines drawn from the corresponding points on the arc AD,locate the points e,,, , c,,, on the outside edge of the inside edge is obtained in a similar manner, C, O being equalto KF or MIf, the poirts ;;;., ;/,, Is,, etc., being transferred to C^O. Arrangement of Boilers and Smoke Flues. as before. The perpendicular lines from these points are inter-sected by the horizontal lines from the corresponding points onarc BC at iiir,, /,v., ii-„ which locates points on the inner edge ofthis sheet. These points being connected by smooth curves give A /I,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
