Part 1
ENGINEERING
DRAWING
CHAPTER 1 - - INSTRUMENTS AND MATERIALS
Page 1
Introduction. Learning to draw. Description and use of drafting
equipment. Importance of pencil drawings. Pencil. T-Square
and Triangle. Scales. Dividers. Compasses. Sharpening
Compass Leads.
CHAPTER 2 — LETTERING ON ENGINEERING DRAWINGS
Page 9
Uses of Lettering. Type of lettering in common use.
Vertical System of Lettering. Inclined System of Lettering.
CHAPTER 3 - - DRAWING BOARD GEOMETRY
Page 12
Ruling straight lines. Drawing parallel lines. Angles.
Drawing perpendicular lines. Drawing circles. How to Rule
a Series of Parallel Lines at a Given Distance Apart. How to
Rule Parallel Lines Dividing A Space Into Equal Parts. How
to lay off an Angle. How to divide a circle into equal parts.
How to transfer a given arc length to another line. How to
rectify a given arc. How to draw a smooth curve through a
series of given points. Tangencies. To draw a straight line
tangent to a given circle at a point on its circumference.
Circle Tangent to Another Circle. To draw a straight line
tangent to a given circle from a point outside its circumference.
How to Join two Straight Lines by a Tangent Arc. How to Join
Two Circles by a Tangent Arc. How to Join a Straight Line
and a Circle by a Tangent Arc. Curves. Ellipse. Parabola.
Rectangular Hyperbola. The Family of " Cycloids." Construction of Cycloid. Construction of Epi- and Hypocycloids.
Involute. Cissoid. Helix. Application of the Curves to
Machine Design.
CHAPTER 4 — FUNDAMENTALS OF ORTHOGRAPHIC PROJECTION-Page 28
Working drawings. Perspective. Orthographic Projection.
Foreshortening. Number of orthographic views required.
The principal views of Orthographic Projection. The thiee
fundamental rules for identifying points. Distances and
coordinates. Reading the Views. Visibility of lines. Rules
of Visibility. Theorems of Orthographic Projection. Drafting procedure. Practical suggestions.
CHAPTER 5 — AUXILIARY VIEWS
Page 46
Auxiliary views. Face perpendicular to Η and oblique to V.
Face perpendicular to V and to H.
CHAPTER 6 — SECTIONAL VIEWS
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Page 50
Symbols for section lining. Cutting plane. Full sections and
half sections. Revolved sections. Broken out sections.
Phantom sections. Thin sections. Exceptions.
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CHAPTER 7 — DIMENSIONING
Page 56
General. Dimension and Extension Lines. Dimension
Figures. Other Suggestions. Finish Marks. Angles.
Circles. Dimensions with Tolerances or Limits. Curves
and Angles. Tapers. Standard Tapers. Special Tapers.
Precision Work. Interchangeable manufacture. Allowance
and interference. Classes of fits. Basic Rules for Dimensioning.
CHAPTER 8 — FASTENERS
Page 67
Bolts, Nuts, and Screws. Screw-thread Terminology. To
draw a screw thread. Screw thread forms. Thread Symbols,
Regular. Thread Symbols, Simplified. Fits. American
Standard Screw Thread Fits. American Standard Screw
Threads. Pipe Threads.
CHAPTER 9 — WORKING DRAWINGS
Detail Drawings.
Projections.
Page 79
Assembly Drawings.
Violations of
CHAPTER 10 — TECHNICAL FREEHAND SKETCHING
Line Technique.
objects.
Circles and Ellipses.
Page 81
Sketching from
CHAPTER 11 — INKING
Page 85
Preparation of tracing cloth. Care of the ruling pen and
compass pen. Use of the ruling pen. Kinds of lines.
Tangents and joints. Use of the scroll or French curve.
Lettering. Dimensions.
CHAPTER 12 - - PICTORIAL DRAWING
Page 8»
Axometric projection. Procedure for drawing an axometrlc
view. Projection ratio and inclination. Procedure for drawing an axometrlc view. Isometric projection. Procedure for
making an isometric drawing. Oblique projection. Types of
oblique projection. Procedure for drawing an oblique view.
Summary of Systems of Projection.
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Part 2
DESCRIPTIVE
GEOMETRY
CHAPTER 1 - PROJECTION OF A POINT
The approach to Descriptive Geometry. Location of a Point in
Space The Frame of Reference and Principal Planes.. Axes
and Coordinates. The Principal Views. The Χ, Υ, Ζ laws of
Orthographic Projection. Position of a Point in Space as shown
by the Principal Views: Important Facts about the Location of
Points. Lecture Notes.
Page 98
CHAPTER 2 - PROJECTION OF A LINE
Definition. General and Special Cases of a Line. Lines in
Relation to the Principal Planes. Point on Line. Piercing
Points. Special cases of Perpendicular Lines. Parallel Lines.
Intersecting Lines. Non-intersecting Lines. Lecture Notes.
Exercises.
Page 105
CHAPTER 3 - PLANES AND THEIR TRACES
The Trace of a·Plane. Relation of a Plane to the Principal
Planes as Revealed by its Traces. Oblique, Perpendicular and
Parallel Planes. To Assume a Line in a Given Plane. To
Assume a Point In a Given Plane. Line Perpendicular to a
Plane. To Pass a Plane through a Given Line so that the Plane
will be Parallel to aihother Given Line. Intersection of Two .
Planes. Lecture Notes. Exercises.
Page 121
CHAPTER 4 . AUXILIARY VIEV^S - REVOLUTION
Projection upon an Auxiliary Plane. Revolution of a Point
about a line True Length of a Line. Slope and Bearing of a
Line True Angle between two Lines. Shortest Distance
between Parallel Lines. Shortest distance between Skew Lines.
General Case of Perpendicular Lines. Intersection of a Line
and an Oblique Plane. Angle between Two Planes: True Size
of a Plane Figure which is Perpendicular to Η and V. Counter
Revolution of a Plane Figure. Lecture Notes. Exercises.
Page 138
CHAPTER 5 - INTERSECTIONS AND DEVELOPMENTS
Surfaces
Ruled, Plane, Single-Curved, Warped, Double-Curved
Surfaces.
Page 170
Developments
Development of a Plane Surface.
Definitions.
Development of a Cylinder; of a Right Cone; of an Oblique Cone;
of a Transition Surface; of a Warped Cone; of a Sphere.
Laps and Seams.
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Intersections (Elementary)
Intersection of prisms: of two cylinders; of a cone and a cylinder;
of a plane and a surface of revolution; Intersection of a cylinder
and a cone; of a cylinder and a cylinder; a cone and a cone; a
single and a double curved surface of revolution.
Tangent planes
To pass a Plane Tangent to a Cone at a Given Point on its Surface;
to a Cone at a Given point Outside its Surface; to a Cone and
Parallel to a Given Line; to a Cylinder through a Given Point on
its Surface; to a Cylinder through a Given Point outside its
Surface; to a Curved Surface of Revolution through a Given Point
on its Surface.
Intersections (Advanced)
To determine the Line of Intersection of a Double-Curved Surface
of Revolution with an Oblique Plane. Intersections of Cones and
Cylinders. To draw the Curves of Intersection of two Cones.
Visibility of the Curve of Intersection. Critical Points. To draw
the Curve of Intersection of Two cylinders. To draw the Curve
of Intersection of a Cone and Cylinder. To draw the Curve of
Intersection between a Sphere and a Cone. Lecture Notes.
Exercises.
CHAPTER 6 - PERSPECTIVE
Procedure for making a Perspective Drawing. Fundamental or
Visual Ray Method. Theorems of Perspective Lines. Line or
Vanishing Point Method. Perspective of Curved Lines.
Lecture Notes.
Page 215
CHAPTER 7 - SHADES AND SHADOWS
Directions of the Rays. Shadows cast on the Principal Planes.
Lecture Notes.
Page 224
APPENDIX
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Page 23?
Limiting Dimensions and Tolerances. Screw threads.
Wrench-Head Bolts and Nuts. Screw thread Fits. Pipe
threads. Decimal Equivalents of Fractions of an inch.
Greek Alphabet.
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