THIS is a valuable volume for all Metal Workers;—the following are a
few of the many subjects treated:
=Materials=.—Definitions; Qualities of Matter; Iron, Steel;
Various Metals, Alloys, etc.; Gravity and Tables; Three Laws of Motion;
Strength of Materials; Fatigue of Metals; Table of Melting Points of
Solids; Useful Weights and Measures.
=Shop Drawing=.—Free-hand Drawing; Instruments; Penciling;
Inking; Lettering Drawings; Dimensioning; Shading; Section-Lining;
Reading Working Drawings; Problems in Geometrical Drawing—Points
Relating to Drawing.
=Gearing=.—Cog Wheels, Spur and Bevel Wheels; Mitre Wheel;
Mortise Wheel; Worm Gearing; Helical Wheel; Designing Gears; Speed of
Gear Wheels.
=Bench and Vice=.—Tempering and Hardening Metals; Grades of
Steel; Cementation Process; Bessemer and Siemen-Martin Process;
Case-Hardening; Annealing; Hand Tools; Machine Tools; Work Benches;
Sledge and Anvil; Surfacing; Red Marking; Hand Drilling; Broaching;
Screw Cutting by Hand; Pipe Cutting.
=Tools and Machines=.—Machine and Hand Tools; Portable Tools;
Action of Machines; Classification of Machine Work; Turning and Boring;
Planing; Milling; Drilling; Grinding; Punching and Shearing.
=Lathe Work=.—Forms and use of Foot Lathes; Hand Lathes; Chuck or
Surfacing Lathe; Engine Lathe; Parts of the Lathe; Cutting Tools Used
in the Lathe; Tempering of Lathe Tools Rule; Lathe Practice; Measuring
Instruments; Mandrels; Lathe-Dogs; Driving Work Between Centers;
Turning Work Between Centers; Lathe Speed; Chuck and Face-plate Work;
Drilling and Boring in the Lathe; Proportion of Parts of a Lathe;
Useful References; Tables and Index.
[Illustration: RODGER’S PROGRESSIVE MACHINIST