. The steam-engine and other heat-motors . w fasten eccentric andrevolve engine in direction it is to run; when opposite dead-centerthe opposite valve should show the same amount of lead. Sixth. Set governor on starting-pin and adjust trip-rods sothat cams will just trip valves as wrist-plate coincides with travel-marks on stud when oscillated. Diameter ofCylinder Lap ofSteam Valves Lap ofExhaust Valves Lead ofSteam Valves 8 Ks Ms K2 10 Ks Kd M2 12 Ke X* Hz 14 X H Y,2 10 X % Y:,2 18 X % Yxi 20 X % ya 22 Hi he Ym 21 9h He %i 26 % y>6 %-> 28 K Vw X* 30 K Ha %x 32 % X Ka 34 % H K« 36 % H Vw
. The steam-engine and other heat-motors . w fasten eccentric andrevolve engine in direction it is to run; when opposite dead-centerthe opposite valve should show the same amount of lead. Sixth. Set governor on starting-pin and adjust trip-rods sothat cams will just trip valves as wrist-plate coincides with travel-marks on stud when oscillated. Diameter ofCylinder Lap ofSteam Valves Lap ofExhaust Valves Lead ofSteam Valves 8 Ks Ms K2 10 Ks Kd M2 12 Ke X* Hz 14 X H Y,2 10 X % Y:,2 18 X % Yxi 20 X % ya 22 Hi he Ym 21 9h He %i 26 % y>6 %-> 28 K Vw X* 30 K Ha %x 32 % X Ka 34 % H K« 36 % H Vw Swing 370 THE STEAM-ENGINE AND OTHER HEAT-MOTORS Seventh. Now remove starting-pin and allow governor to goas low down as it will, then adjust safetj^-toes on trip-cams so thatvalves will not hook on when wrist-plate is swung to travel-markson stud. Caution.—The adjustment of rod H is very important: if toolong something will break, if too short the valves will not hook your dash-pots so as to maintain a good working vacuum.*.
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