. The steam-engine and other heat-motors . -i 130 120 no 100 90 30 70 60 50 40 30 20 10 >f«~>t ^4«-*{ ^ MULTIPLE-EXPANSION ENGINES. 319 To Draw the Combined Diagram.—Draw any line to representthe clearance line as in Fig. 163. Perpendicular to it, at any givenpoint, erect a line, called the zero line, whose assumed length willrepresent the volume of the low-pressure cylinder plus the clear-ance. Lay off this clearance. Divide the remainder into anynumber of parts and divide the atmospheric line of the low-pressurediagram (limited by the end ordinates o
. The steam-engine and other heat-motors . -i 130 120 no 100 90 30 70 60 50 40 30 20 10 >f«~>t ^4«-*{ ^ MULTIPLE-EXPANSION ENGINES. 319 To Draw the Combined Diagram.—Draw any line to representthe clearance line as in Fig. 163. Perpendicular to it, at any givenpoint, erect a line, called the zero line, whose assumed length willrepresent the volume of the low-pressure cylinder plus the clear-ance. Lay off this clearance. Divide the remainder into anynumber of parts and divide the atmospheric line of the low-pressurediagram (limited by the end ordinates of the diagram) into thesame number of parts. Draw ordinates through these points andlay off in the combined diagram (in accordance to its assumed h. P. CYL. 120 ?100 - 80 - 604020 L. P. CYL
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