Machine drawing; a practical guide to the standard methods of graphical representation of machines, including complete detail drawings of a duplex pump and of a direct-current generator . l drawing 208 Order sheets 211 Shop drawings—electrical 219 Requirements 219 Essentials of a good drawing 220 Design of a direct-current generator 222 Material supplied to designing draftsman 222 Preliminary layout sketch 224 General outline drawing 224 CONTENTS 3 PAGE Design of a direct-current generator Details of armature and commutator .224 Armature punchings 226 Armature windings 226 Armature flanges and
Machine drawing; a practical guide to the standard methods of graphical representation of machines, including complete detail drawings of a duplex pump and of a direct-current generator . l drawing 208 Order sheets 211 Shop drawings—electrical 219 Requirements 219 Essentials of a good drawing 220 Design of a direct-current generator 222 Material supplied to designing draftsman 222 Preliminary layout sketch 224 General outline drawing 224 CONTENTS 3 PAGE Design of a direct-current generator Details of armature and commutator .224 Armature punchings 226 Armature windings 226 Armature flanges and spider 230 Equalizer rings and support 231 Commutator details 233 Armature shaft. .. 238 Details of field frame and coils 238 Magnet frame and base 240 Pole pieces 241 Main field coils and spools 245 Commutating field coils and spools 246 Details of brush rigging 249 Brush holder, stud and connections 249 Brush holder yoke and brush shifting device 253 Bearings and pedestals 255 Split bearings for armature shaft 255 Pedestals and caps for bearings : .. .. 257 Details of electrical connections 259 Assembly of connections 259 Connections 262 Final assembly drawing 262 Outline 262. CO o a woo 8 p H N CO -a O « CO Is Ed ,2 co Kl hfl o CO ^. £ CO ^ INTRODUCTION 1 I HE ability to visualize a piece of machinery, to arrive atA the exact idea of the designer or the inventor, and thento draw these details in such a clear and concise form as to makethem thoroughly understood is a very important attribute inthe manufacturing world. The pattern maker must have justthe views and dimensions of the machine that will enable him tomake accurate patterns for the cast parts. The shopman mustbe furnished with every detail which he should know in orderto finish the pieces to proper dimensions; he must be told justwhat surfaces to leave rough, which ones to machine in the lathe,and which ones to caliper to thousandths of an inch. It is evident,that the machine draftsman who is to do his work wit
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Keywords: ., bookcentury1900, bookdecade1910, bookpublis, booksubjectmachinery
