Elements of Mechanical Drawing

Elements of Mechanical Drawing
اسم المؤلف
Gardner C. Anthony, A.M
التاريخ
30 سبتمبر 2016
المشاهدات
التقييم
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Elements of Mechanical Drawing
By Gardner C. Anthony, A.M.
Professor of Drawing Ix Tufts College; Dean of The Bromfield-Pearson School;
Member of American Society of Mechanical Knt.Im U.-.
Contents.
THE OUTFIT 9
THE USE OF INSTRUMENTS . . 10
Preparation of the Paper, 10 ; The Pencil, 10 ; The Scale, 10 ; A Study of Straight Lines, 11 ;
Practice in the Use of Triangles, 12; Use of Dividers, 13; Inking, 14; Lettering, 16; The
Drawing of Circular Arcs, 17 ; The Compasses, 17 ; Inking of Circular Arcs, 18.
GEOMETRICAL DEFINITIONS AND USEFUL PROPOSITIONS 20
Points, Lines, and Angles, 20 ; Triangles, 21 ; Quadrilaterals, 22 ; Polygons, 23 ; Circles, 23 ;
Solids, 24; Pyramids, 25; Prisms, 25; Cylinders, 26; Cones, 26; Sphere, 27.
GEOMETRICAL PROBLEMS 27
General Instruction, 27 ; Perpendiculars, 28 ; Angles, 29 ; Triangles, 31 ; Tangents, 32 ; Inscribed and Circumscribed Polygons, 34 ; Construction of the Hexagon, 35 ; Inscribed and
Circumscribed Circles, 37.
EXAMPLES 39
Perpendiculars, 39 ; Angles, 39 ; Triangles, 40 ; Tangents, 40 ; Inscribed and Circumscribed
Polygons, 41 ; Hexagons, 41 ; Inscribed and Circumscribed Circles, 42.
CONIC SECTIONS
The Ellipse, 44 ; The Inking of Curves, 47 ; The Parabola, 48 ; The Hyperbola, 49.
EXAMPLES . 50CONTENTS.
PROJECTION .51
General Instruction for Drawing, 55; Problems 1 to 12, 56; Objects Oblique to Planes, 58;
Problems 13 to
17, 59; Special Methods for the Revolution of Lines, Surfaces, and Solids, 61.
SPECIAL PROBLEMS IN PROJECTION .65
THE DEVELOPMENT OF SURFACES 68
Problems 18 to
25, 70; Development of Surfaces of Revolution, 72; The Cylinder, 72; The
Cone, 73; Problems 26 to 28, 75.
THE INTERSECTION OF SURFACES 76
Problems 29 to
31, 77; Use of Auxiliary Planes, 78; Problems 32 to 36, 79.
SCREW-THREADS AND BOLT-HEADS 81
Spirals, 81; Involutes, 82; The Helix, 82; Problems 37 and 38, 83; V and Squnre ScrewThreads, .84; Problem ’39, 86 ; Conventional Threads, 86; The Double Thread, 86; U. S.
Standard V
Thread, 87 ; Problem 40, 88.
BOLTS
Sphere and Cutting Planes, 88 ; Hexagonal Heads and Nuts, 89 ; Problem 41, 91.
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