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เนื้อหาย่อ : PREFACE wwts book has been written in the hope that it will be of real value aa dbe student and instructor of wood patternmaking, and also the morestice patternmaker and journeyman. The book is divided into two parts. The first part presents general aedated information as well as pertinent specific technical data. The wczed part consists of jobs, which are aimed to give the student aining in fundamental skills and procedures, in logically grad- wbed sequence. Applications in patternmaking are so varied that the author gurded it advisable to stress general fundamentals as far as eble and not to restrict his treatment to the specific instruc- an of a limited number of patterns. With a sound and thorough ng in fundamentals, the student is well equipped to make naid individual progress and to do much of his own pattern ming and designing. This material is the product of the author's experience as an udustrial patternmaker and instructor of patternmaking. It has eem used successfully in both the classroom and shop. Additions ad revisions were made until the book assumed its final workable The course in patternmaking is laid out for eight semesters, 9B to 12A inclusive. With the instructor's assistance and the of this book, the student will be able to make simple patterns will be adequately versed in the skills and techniques of all phases of patternmaking. Te auithor is very grateful or the information and assistance given by the following instructors in the Boys' Technical High School, waukee Wisconsin: Mr. G. A. Mickelson, senior member of the er department; Mr. Frederick Kneisler, member of the pat- department; Mr. Henry Luebs, senior member of the cabinet carpentry department; Mr. Frank Bruckwick, chairman of the r wood shop; Mr. Frederick Nicolai, chairman of the mathe- ucios department; Mr. Walter Weber, member of the mechanical du#ing and photography departments; Mr. Sylvester Strothman, f dbe science and forestry departments; and Mr. Clayton Francke, aee principal of the Milwaukee Boys' Technical High School.