Page:Motors and motor-driving (1902).djvu/497

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direct, 216-218; testing steering gear, 218; brakes, 218-222; brakes used by various makers, 221; Automobile brake trials, 222; wheels, 222, 223
 * Petrol engine, principle of the, 103; internal combustion, 105; illustrated by a single-cylindered Daimler, 105; force generated by explosion of mixed gas and air in combustion chamber, 106; fired by electric spark or red-hot platinum tube, 106, 107; suction stroke, 106; compression stroke, 106; explosive stroke, 107: exhaust stroke, 107; operation shown in a complete cycle, 107, 108; induction valves, 108; exhaust valve, 109; mechanical lift of exhaust valve, no; surface carburetter, in; twin trap or mixing chamber, 113, 114; Benz carburetter, 115; spray carburetter, 116; systems of feeding the spray carburetter, 117; the silencer, 118; systems of governing, 120; governing by advancing or retarding the sparking, 120; by exhaust-valve lifter, 121; by exhaust-valve closer, 121; by regulating the lift of the induction valve, 121; by mechanically governing the exhaust valves, 121; the Daimler system of governing described in diagrams, 122-129; the accelerator, 128; governing by throttle, 129; governing both by exhaust and throttle, 130; motors with more than one cylinder, 130; movements of double-cylindered engines with cranks set at 180 and 360, 130, 131, 132; water circulation, natural and forced, 133, 134; radiators, 134; the crank chamber, 135; the piston, 135; relative positions of induction and exhaust valves, 136; appliances for starting the motor, 137; various types of engine, 137; ignition, 138 et seq. See Ignition in petrol engines
 * Petroleum spirit (petrol), regulations concerning, 414-417
 * Peugeot petroleum vehicles, 9, 14, 1 6, 24; in the Marseilles-Nice-Turbie race, 19; 8 h.-p. (1902), 41
 * Phoebus motor tricycle, with Aster motor, 312
 * Phoenix motor bicycle, with improved Minerva engine, 315; two-speed gear, 317
 * Plante batteries, 290
 * Platinum tube for ignition in petrol engines, 138, 139
 * Pneumatic tyres, 20, 45, 49, 94, 226, 237; punctured, 228, 370. See Tyres
 * Postel-Vinay electric motor, the, 286
 * 'Powerful' electromobile, the, 290, 300
 * Pumps for boilers of steam cars, 257


 * motor cycle, the,