alternating current ammeter amperes angle arc lamp armature axis base border lines brushes cable candle power carbons center line choke coil circle circuit circular mils commutator conductors cone connected construction copper core curve cylinder diameter direct current distance dotted draw drawn dynamo edge electric electromotive force elements elevation engines equal face feeder feet figure give ground line hence horizontal plane incandescent lamp inches long induction insulation intersection iron isometric left-hand letters light lightning arrester load located machine magnetic mains method motor ohms parallel passing pencil perpendicular piece placed PLATE points poles position potential prism Problem projection pyramid radius rail resistance right-hand rotary converter shade lines shown in Fig side speed square station straight line supplied surface switch switchboard T-square tangent terminals tion transformer triangle trolley wire usually vertical plane voltage volts wattmeter watts wheel
Page 5 - CIRCLES. 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 10 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Page 7 - In order to obtain accurate measurements each degree is divided into 60 equal parts called minutes and each minute into 60 equal parts called seconds.
Page 9 - A cone is a solid bounded by a conical surface and a plane which cuts the conical surface. The plane is called the base and the curved surface the lateral area.
Page 17 - Proof. If two straight lines are cut by a third making the corresponding angles equal, the lines are parallel.
Page 38 - In 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, the beginner is advised to draw this exercise several times.