Previous Index Next
Page 14
(previous) (Page 000014) (next)
 
CONTENTS

CHAPTER XVI

ELEcmcMorons
Thomas Davenport — The First Electric Motor — A Simple Electric
Motor — The Simplex Motor — The Armature — Making the Field
Magnet - The Bearings — The Commutator Core — The Base —
Assembling the Motor — Connections — How to Build a Larger Motor

— Cutting out the Laminations — Winding the Motor.

CHAPTER XVII

DYNAnos..............
The Dimculties of Building a Dynamo — The Principle of the Alter-

' nator and the Direct-Current Dynamo—Making a Magneto into a.

Dynamo — A Io-Watt Dynamo — The Field — The Armature —
The Commutator - The Windings — The Base — The Bearings —
The Brushes — Assembling and Completing the Dynamo.

CHAPTER XVIII

ANELECTRICRAILWAY.

A Toy Railway Car — How to Make the Running Gear —' Installing

the Motor — Testing the Car — Making the Body — How to Make

the Track — Track Patterns — A Cross-over — A Rail Connector —

Making the Car Reversible — A Track Bumper — A Design for a Rail-
way Bridge -— A Design for a Railway Station.

CHAPTER XIX

MINIATURELIGHTING

What it may be used for — Carbon Battery Lamps — Tungsten
Battery Lamps — Lamp Bases — Sockets and Receptacles — The
Wires used for Miniature Lighting —- Switches _—‘ Batteries — Mul-
tiple Wiring — Series Wiring — Three-way Wiring — Lamp Brackets
—A Hanging Lamp — Small Dry Cells— An Electric Hand-Lantern
— A Ruby Lantern — A Night Lamp — A Watch-Light — An Electric
Scarf-Pin.

CHAPTER XX

MISCELLANEOUS ELECTRICAL APPARATUS

How Electricity may be Generated by Heat —The Energy of the
Sun— Sun-Power Apparatus — How to Build a Thermopile — How

301

318

334

354

Previous Index Next