Copyright Goodheart-Willcox Co., Inc. vi Print Reading for Industry Dr. Brown would like to acknowledge and thank Dr. Louis Reifschneider, a colleague in the Department of Technology at Illinois State University, for his review and writing of the unit on plastic parts. Dr. Reifschneider has experience in the plastics industry as an engineer and designer. He graciously brought his expertise to this unit. Images and Prints Used in the Text Throughout the text are images and illustrations based on actual industry prints. The companies that have supplied images and prints for this text appear in the following list. The publisher and authors thank these companies for their assistance. Acknowledgments Aerojet-General AIR Corporation AISIN Manufacturing Illinois Barko Hydraulics Barton Manufacturing BC Design and Associates Bell Aerosystems Boston Gear Group Brown and Sharpe Clark Equipment Company Cleveland Gear Creatas Daimler Deere and Company DesignJet Division, Hewlett-Packard Detroit Diesel Allison Dukane Engel, Inc. GenCorp Aerojet Gleason Works Grayhill, Inc. Hydro-Gear Intermatic, Inc. Iron-A-Way J. I. Case Johnson and Towers, Inc. Kennametal MAAC Machinery Marathon LeTourneau Company MASCO Corporation Master Spring and Wire Form Co. Monarch Sidney Motorola Inc. National Lock North American Aviation OMC Lincoln Perkin Elmer Polygon Company Pratt and Whitney Canada Reed Spectrum RegO Cryo-Flow Products Rockwell Manufacturing Company Skil Corporation Sono-Mag Corporation Sperry Phoenix Company Sterling Precision Corporation Sunnen Products Company Talley Industries The American Welding Society Unidynamics Uniloy United Technologies Otis Vickers Industrial Division Wis⋅Con Total Power Corporation