Pocketbook of Useful Formulæ and Memoranda
for Civil and Mechanical Engineers

504 Molesworth's pocket-book Locomotives—continued. (French Practice.) D — Diameter of cylinder. A = Area of one cylinder. H — Heating surface. d = Diameter of tubes. D = -0416 vh. A = -00136 H. Stroke ....................= 1 • 57 D. Length of connecting rod — 3’84 D. Ditto slide-valve = • 68 D = • 03 V H. Breadth of ditto = *82 D — -04 VII. Surface of ditto = ‘59A= '0012 H. Angle of advance of slide = 30° Lineal advance .. .. = -013 D. Inside cover of slide-valve = • 012 D. Outside cover..............= '065 D. Piaineter of eccentrics .. = -15D. Steam-port area .. .. = • 071 A. Length of port to width — -91. Area of exhaust-pipe .. = • 14 A. Diameter of steam-pipe .. = • 0002 H. Area of regulator-opening = '00015 H. Ditto of blast-pipe .. .. = • 0002 H. Ditto of nozzle of ditto .. = • 00017 H. Length of fire-grate .. = ’114 V H. Width of ditto.............= • 114 V H. Area of ditto..............= -013 H,