Screw-threads, alteration of shape, [i, 89].
pitch of, [i, 85].
requirements of, [i, 86].
self-locking, [i, 85].
tools for cutting, [i, 87].
variation of pitch, [i, 87].
Screws, [i, 115].
belt, [ii, 216].
set, [i, 127].
variation of pitch, [i, 87].
Scroll chucks, [i, 238].
chuck threads, wear of, [i, 238].
sawing machine, [ii, 306].
Seams for boilers, forms of, [ii, 352].
Securing feathers, methods of, [i, 120].
devices, nut, [i, 120].
pins for exact adjustments, [i, 121].
Segmental circular saws, [ii, 300].
Segments, for patterns, [ii, 278], [279].
saw, fastening to discs, [ii, 301].
Self-acting lathe, English form of, [i, 148].
locking bolts, [i, 117].
nuts, [i, 85].
screw threads, [i, 85].
Self-adjusting couplings, [ii, 198].
Self-oiling pulleys, [ii, 201].