Introduction to Machine Drawing and Design by David Allan Low with eReader App.

It is now generally recognised that the old-fashioned method of teaching machine drawing is very unsatisfactory. In teaching by this method an undimensioned scale drawing, often of a very elaborate description, is placed before the student, who is required to copy it. Very often the student succeeds in making a good copy of the drawing placed before him without learning very much about the object represented by it, and this state of matters is sometimes not much improved by the presence of the teacher, who is often simply an art master, knowing nothing about machine design. It is related of one school that a pupil, after making a copy of a particular drawing, had a discussion with his teacher as to whether the object represented was a sewing machine or an electrical machine. Evidently the publisher of the drawing example in this case did not adopt the precaution which a backward student used at an examination in machine design: he put on a full title above his drawing, for the information of his examiner.

IT CONTAINS

I. INTRODUCTION

II. RIVETED JOINTS

III. SCREWS, BOLTS, AND NUTS

IV. KEY

V. SHAFTING

VI. SHAFT COUPLINGS

VII. BEARINGS FOR SHAFTS

VIII. PULLEYS

IX. TOOTHED WHEELS

X. CRANKS AND CRANKED SHAFTS

XI. ECCENTRICS

XII. CONNECTING RODS

XIII. CROSS-HEADS

XIV. PISTONS

XV. STUFFING-BOXES

XVI. VALVES

XVII. MATERIALS USED IN MACHINE CONSTRUCTION

XVIII. MISCELLANEOUS EXERCISES

APPENDIX A

APPENDIX B

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