Machine-Shop Handbook A HANDBOOK OF REFERENCE ON MACHINE-SHOP PRACTICE FOR Those Interested in the Work of the Machine the General Mechanic BY International Correspondence Schools Scranton, Pa. 1st Edition, 5th Thousand, 1st Impression SCRANTON, PA. COPYRIGHT, 1924, BY INTERNATIONAL TEXTBOOK COMPANY COPYRIGHT IN GREAT BRITAIN ALL RIGHTS RESERVED PRINTED IN U. S. A. General Library System PRESS OF SCRANTON, PA. T PREFACE !?0!! The publishers have endeavored in this MachineShop Handbook to compile such information as will be of value to persons engaged in shop work. For the greatest convenience of the user, it has been made reference book of small size, but containing a vast amount of information needed by the mechanic. A special feature is the system of indexing. Every important item is indexed under all the letters in which it is likely to be sought, thus making it easy to find the information on any subject. A very large number of illustrations are used. These are of the standard I.C.S. quality as prepared by our special staff of artists. The following subjects are treated : Useful tables and rules; shop work; and first aid to the injured. The useful tables and rules cover weights and measures, mensuration, trigonometry, and properties of materials. Shop work covers drilling, reaming, tapping and threading, lathe work, threads and thread cutting, measuring and testing, millingmachine work, indexing, helixes and spirals, key work, gearing, planer work, shaper work, slotter work, broaching, grinding and polishing and lapping, jigs and fixtures, punch and press work, die casting, gauges, micrometers and vernier instruments, lubricants, temperature indicators, metals, heat treatment, chilled iron, welding and brazing and soldering, coating and protecting, filing, stock estimating, chipping, riveting, pipe bending, laying out work, blueprints, belting, pulleys and shafting, knots and hitches, springs and miscellaneous shop hints. First aid to the injured covers the equipment needed for attending to injuries, the nature of the injuries that have been the most common, detailed instruction for resuscitation, and the care of the patient. INDEX mea A Abrasive, Grade of, for laps, 209 Abrasives for disk grind ing, 193 for grinding wheels, 194 used on polishing wheels, 207 Accidents and injuries, 336 Acme standard thread, 119 Adamite, 195 Adjustable external limit gauges, 232 reamers, 58 Allowance for reaming, 60 Allowances, Fitting, 104 for draft and finish in dies, 223 for grinding, 189 for shrinkage in dies, 222 Alloys, Aluminum for die castings, 226 228 228 Zinc, for die castings, 227 Aloxite, 195 Aluminum alloys, 226 Gauges and weights of sheet, 287 Lubricant for machining, 247 Soldering, 264 Alundum, 195 Angle and length of scrap ing edge of drill, 53 Angle of taper, Calcu lating, 106 plate, 88 Angles and tapers, 108 Center, 78 weight, 2 sures of, 10 of ring, 19 of surface of cylinder, 19 of surface of sphere, 19 Areas of circles from 1-64 to 100, and circumferences, 21 of regular polygons, 20 Artificial respiration, 337 A. S. M. E. standard threads, 134 standard threads, Tap drills for, 65 threads, 118 Average cutting speeds, 102 Avordupois weight, 2 B metals, 250 |