Piston valves, [ii, 378].
Pitch, alteration in hardening, [i, 108].
circle, the diameter of, [i, 1].
correcting the errors of, [i, 109].
gauging the, after hardening, [i, 108].
line of cams, [i, 80].
lines of elliptical gear-teeth, [i, 70].
number of teeth, and pitch diameter, [i, 68].
of screw threads, [i, 85].
Pitch of teeth for band saws, [ii, 305].
Pivoted arms for tooth templates, [i, 44].
Plane blades, [ii, 77].
blades, finding shapes of, for mouldings, [ii, 78]-[83].
Planer beds, flat guideways for, [i, 414].
beds, oiling devices for, [i, 416].
centres, [i, 408].
chuck, for curved work, [i, 420].
chucking halves of pulleys on, [i, 423].
chucks, [i, 419].
for spiral grooved work, [i, 419].
for timber, [ii, 330], [331].
head slides, wear of, [i, 410].
or iron planing machine, [i, 402].
shapers, reversing, [i, 398], [399].
swivel heads for, [i, 411].
swivelling tool holder, [i, 411].
tool, aprons for, [i, 411].
heads, feed motions for, [i, 414].
graduations of, [i, 390].
safety devices for, [i, 413].
V-guideways for, [i, 414].
tables, angle plates for, [i, 418].
chucking devices for, [i, 422].
chucking machine beds on, [i, 421].
forms of bolts for, [i, 417].
supplementary tables for, [i, 417].
tool-holder, applications of, [i, 425].
with tool post, [i, 425].
examples of application of, [i, 426].
simple form of, [i, 426].
tools for coarse finishing feeds, [i, 423].
for slotted work, [i, 424].
clearance of, [i, 424].
shapes of, [i, 423].
gauge for, [i, 423].
Planes, [ii, 267]-[270].
circular, [ii, 268].
combination, [ii, 269].
compass, [ii, 268].
core-box, [ii, 269].
for pattern making, [ii, 268], [269].
fore, [ii, 268].
grinding of, [ii, 267].
jack, [ii, 267].
oilstoning of, [ii, 267].
rabetting, [ii, 268].
Plane surfaces, friction of, [ii, 135].
Planet motion, [i, 75].
Planimeter, [ii, 420].