INDEX 



xv 



Pipe, Protection of blow-off, 



119. 



Pipes, Flow of water in, 72. 

 for engines, Steam, 102. 

 Piping, Arrangement of, 122. 



Boiler, 120. 

 Piston, Loose, 211. 



packing, Broken, 212. 

 speed, 192. 



striking cylinder heads, 212. 



Pitch, Axially expanded, 234. 



Determining the kind of, 



236. 



Measurement of, 234. 

 of propeller, Required, 236. 

 Radially expanded, 234 

 Pitting or honeycombing, 131. 

 Pittsburg, Pa., license law, 



280. 

 Planimeter, 185. 



Hints for use of, 186. 

 Plate, Dead, 104. 

 Plugs, Fusible, 116. 

 Polygons, 34. 

 Positive injectors, 123. 

 Pounding at crosshead, 213. 

 in air pump, 214. 

 in circulating pump, 214. 

 of engines, Causes and rem- 

 edies for, 210. 

 Power, Work and, 62. 

 Powering of vessels, 238. 

 Powers, roots, and reciprocals, 



Table of. 11. 

 Precautions in relighting oil 



fuel fires, 158. 

 Preparations for shutting 



down a boiler, 163. 

 Pressure, Approximate mean 



effective, 190. 

 by ordinates. Mean effect- 

 ive, 187. 



due to head of water, 73. 

 Finding the mean effective, 



184. 



Oil, 152. 



on brasses, Reversal of, 213. 

 Referred mean effective, 



195. 

 Prevention of incrustation 



and corrosion, 133. 

 Priming, 162. 



Prism, 37. 



Frustum of, 37. 

 Production of draft, 108. 

 Products of combustion, 76. 

 Projected propeller area, 234. 

 Prony brake, 196. 

 Propeller area, Projected, 234. 



Required diameter of, 237. 



Required pitch of, 236. 

 Propellers, Screw, 232. 

 Properties of fuel oil, 83. 



of steam, 89. 



Propulsion of vessels, 231. 

 Protection of blow-off pipe, 



119. 

 Pulley, Brumbo, 178. 



Differential, 65, 

 Pulleys, Belt, 66. 



Combination of, 65. 



Cooling of brake, 198. 



Driven, 67. 



Driving, 67. 



Fixed and movable, 64. 



Solid, 66. 



Split, 66. 



Wooden, 67. 

 Pump, Pounding in air, 214. 



Pounding in circulating, 



214. 



Purification of feedwater, 135. 

 of feedwater by chemi- 

 cals, 136. 



of feedwater by filtration, 

 135. 



of feedwater by heat, 138. 



of feedwater by settlement, 

 135. 



Quality of steam, 95. 



R 



Radially expanded pitch, 234. 

 Ratio of expansion, 183. 

 Ratios, Cylinder, 194. 

 Real cut-off, 183. 

 Reciprocals, 10. 



Table of powers, roots, and, 



11. 



Rectangle, 34. 

 Reducing a common fraction 



to a decimal, 5. 



