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angle appear architect architectural axis base building called center line circle color complete cone construction convenient corner curve cylinder dark describe dimensions direction distance dividers door dotted draftsman drawing drawn edge effect elevation equal example face figure finished floor front give given ground height horizontal inches indicated intersection isometric laying length letter light located lower material measure method necessary obtained opening paper parallel passing pencil perpendicular placed plane PLATE position practice prism Problem projection pyramid radius rendering represents roof rule scale shade shadows shown in Fig shows side sketches sometimes space square straight line student surface T-square taken tint tracing triangle true upper usually vertical vertical plane wall wash window
Page 59 - A circle is a plane figure bounded by a curved line, every point of which is equally distant from a point within called the center. The curve which bounds the circle is called the circumference.
Page 64 - A cone is a solid bounded by a conical surface and a plane which cuts the conical surface.
Page 97 - Fig. 4. straigm tine in perpendicular to either V or H, its projection on that plane is a point, and on the other plane is a line equal in length to the line itself, and perpendicular to the ground line. Fig. 4 is given as an exercise to help to show clearly the idea of plan and elevation. A = a point B" above H, and A
Page 79 - V shows the necessary arcs. Produce the sides of the angles thus constructed until they meet at T. The triangle RTS will be the required triangle. After drawing these six figures in pencil, draw the pencil lines for the lettering. The lines for the words '•'•PLATE V" date and name, should be pencilled as explained on page 20. The words " Problem 7," " Problem 8," etc., are lettered as for PLATE IV.
Page 70 - Draw the horizontal straight line AC about 3.', inches long and assume the point P about 1| inches above A C. Through the point P draw an oblique line FE forming any convenient angle with A C.
Page 52 - Fig. 5 draw all arcs first and then draw the straight lines meeting these arcs. It is much easier to draw straight lines meeting arcs, or tangent to them, than to make the arcs tangent to straight lines. As this exercise is difficult, and in all mechanical and machine drawing arcs and tangents are frequently used we advise the beginner to draw this exercise several times.
Page 18 - T-- square place the triangle so that the other 45-degree angle is in the position occupied by the first. If the two 45-degree angles coincide they are accurate. Triangles are very convenient in drawing lines at right angles to the T-square. The method of doing this is shown in Fig. 10. Triangles are also used in drawing lines at an angle with the horizontal, by placing them on the board as shown in Fig. 11. Suppose the line EF (Fig. 12...
Page 41 - It is a good plan to draw lines ^ inch apart on a separate sheet of paper and pencil the letters in order to know just how much space each word will require. The insertion of the words " Fig. 1