CONTENTS 



Pa.qe 



Preface v 



CHAPTER I 

 Charts and Tables for General Arithmetical Calculations 1 



Arc length versus Central Angle. Chordal Height and Length of Chord. Length of Material for Bends. 

 Circular Segments. Volumes in Tanks, Horizontal Round. Volumes in Tanks, Vertical Round. Volume, 

 Weight, and Cost. Weights of Cylindrical Pieces. Chart of Unit and Total Weights. Chart of Weights 

 and Volumes. Moment of Inertia of Prisms; Flywheels; Gears and Armatures. Radii of Gyration. 

 Transferring Moments of Inertia to Parallel Axis. WR^ of Symmetrical bodies. Centrifugal Force. 

 Forces in Toggle Joint. Linear Motion. Rotary Motion. Mean Cooling Temperature. Solution of 

 Ohm's Equations. Total Resistance of Parallel Circuits. 



CHAPTER II 

 Materials 33 



Selection of Materials. Cast Irons. Alloy Cast Irons. Effect of Nickel and Chromium on Cast Iron. 

 Malleable Iron Castings. Cast Carbon Steels. High Alloy Cast Steels. Low Alloy Cast Steels. Corro- 

 sion and Heat-resistant Cast Steels. Properties of Stainless Steel. Iron-nickel-chromium Alloys. Alumi- 

 num Base Alloys. Magnesium Base Alloys. Insulating Materials. Plastic Materials. Phenolic 

 Laminated Molded Materials. Steels for Automotive Parts. 



CHAPTER III 

 Beams and Structures 71 



Stress Calculations for Thin Aluminum Sheet Sections. Compression Members. Angles in Compression. 

 Shear Members. Vertical Stiffeners for Shear Resisting Webs. Diagonal Tension Webs. Hollow 

 Girders. Box Sections Subjected to Torsion. Chart for Determining Bending Moments. Deflection of 

 Variously Loaded Beams. Stresses in Cantilever Beams. Tensile Strength of Round Wires. Rectangular 

 Moments of Inertia. 



CHAPTER IV 



Latches, Locks and Fastenings 95 



Locking Devices. Retaining and Locking Detents. Wire Locks and Snap Rings. Taper- Pin Applications. 

 Hinges and Pivots. Clamping Shoes and Plugs. Lock Bolts and Indexing Mechanisms. Machine 

 Clamps. Door and Cover Fastenings. Bolt Diameter, Load, and Stress. 



CHAPTER V 

 Springs 121 



Designs of Helical Springs. Spring Wire Specifications. Design Stresses. Torsional Moduli. Allowable 

 Stresses Based on Endurance Limits. Natural Frequency. Formulas for Helical Springs. Permissible 

 Manufacturing Tolerances. Form for Design Calculations. Standard Drawings for Springs. Table of 

 Wire Gages and Diameters, with Their Squares, Cubes, and Fourth Powers. Inspection and Testing of 

 Springs. Graphical Solution of Helical Spring Formulas. Helical Spring Charts for Specified Ratio of 

 Loads and Lengths. Designs of Tension Spring Ends. Graphical Designs of Flat Cantilever Springs. 

 Graphical Designs of Semielliptic Laminated Springs. , 



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