COLE & MORGAN, Inc.
Publishers of the Arts and Sciences Series
P. O. BOX 473 CITY HALL STATION
NEW YORK, N. Y.
COPYRIGHT 1919
BY
COLE & MORGAN, Inc.
- [CHAPTER I. EXPLAINING HOW AN ELECTRIC MOTOR OPERATES. SOME PRINCIPLES OF MAGNETISM. THE DIFFERENCE BETWEEN A SHUNT AND A SERIES MOTOR.]
- [CHAPTER II. THE CONSTRUCTION OF SIMPLE TOY ELECTRIC MOTORS.]
- [CHAPTER III. A Magnetic Attraction Motor. A Motor Having a Laminated Field and Armature Frame. How to Make an Experimental Induction Motor. How to Make an Electric Engine.]
- [CHAPTER IV SMALL POWER MOTORS]
- [FIG. 1.—If a current of electricity is passed through a wire, the wire will attract to itself iron filings.]
- [FIG. 2.—If a wire carrying a current of electricity is formed into a loop, the space enclosed by the loop will become magnetic. The arrows represent the paths of the lines of magnetic force.]
- [FIG. 3.—By forming the wire into several loops or a spiral so that the effect of the individual turns is concentrated in a small space, an Electromagnet is made.]
- [FIG 4—The strength of an electromagnet is proportional to the ampere turns. The magnet illustrated above does not possess sufficient turns to be very strong.]
- [FIG. 5.—An increase in the number of turns of wire has resulted in considerable increase in the magnetism and this magnet is able to lift a much greater weight than that shown in Figure 4.]
- [FIG. 6.—The Principle of the Electric Motor.]
- [FIG. 7.—Diagrams showing the difference between a Shunt and a Series Motor.]
- [FIG. 8.—Details of the Armature for the Simplex Two-pole Motor.]
- [FIG. 9.—Showing the Armature assembled on the shaft ready for winding.]
- [FIG. 10.—A front view of the Field Frame.]
- [FIG. 11.—The completed Field Frame, ready for winding.]
- [FIG. 12.—The Bearings.]
- [FIG. 13.—Side view of the Armature and Commutator Core assembled on the Shaft before winding.]
- [FIG. 14.—Showing the Motor assembled on the Base so that all the parts may be lined up before winding.]
- [FIG. 15.—The Field Frame with the Winding in position.]
- [FIG. 16.—The Armature Winding before the Commutator is completed.]
- [FIG. 17.—The completed Armature showing how the Commutator is constructed.]
- [FIG. 18.—Details of the Commutator.]
- [FIG. 19.—The completed Motor.]
- [FIG. 20.—Details of the Three-pole Armature.]
- [FIG. 21.—The Three-pole Armature assembled on the shaft.]
- [FIG. 22.—Showing the Armature and Shaft with the Commutator Core in position.]
- [FIG. 23.—Diagram showing how the coils are connected together so as to form a continuous winding.]
- [FIG. 24.—The completed Three-pole Motor.]
- [FIG. 25.—The Simplex "Overtype" Motor.]
- [FIG. 26.—Details of the Field Frame for the "Overtype" Motor.]
- [FIG. 27.—Showing how the Field is Wound.]
- [FIG. 28.—The Bearings.]
- [FIG. 28.—The Manchester Motor.]
- [FIG. 30.—Details of the Field Frame.]
- [FIG. 31.—Details of the Field Pedestal.]
- [FIG. 32.—Showing how the Field Coils are Wound.]
- [FIG. 33.—Details of the Magnet Bobbins.]
- [FIG. 34.—The completed Electromagnets mounted on the Yoke.]
- [FIG. 35.—Details of the Armature Shaft.]
- [FIG. 36.—Details of the Standard which forms the upper bearings.]
- [FIG. 37.—The Brass Contact.]
- [FIG. 38.—The Brush which bears against the Contact.]
- [FIG. 39.—The completed Magnetic Attraction Motor.]
- [FIG. 40.—The completed Electric Motor.]
- [FIG. 41.—Details of the Field Frame.]
- [FIG. 42.—The Assembled Field ready for Winding.]
- [FIG. 43.—Details of the Armature Laminations.]
- [FIG. 44.—The Armature assembled on the Shaft ready to Wind.]
- [FIG. 45—The Commutator and Method of connecting the Armature Coils.]
- [FIG. 46.—The Bearings.]
- [FIG. 47.—Brush and Supporting Block.]
- [FIG. 48.—A well known Three-pole Battery Motor.]
- [FIG. 49.—Showing how a Three-pole Motor may be provided with "Starting Coils" and connected to form an Experimental Induction Motor.]
- [FIG. 50.—The completed Engine.]
- [FIG. 51.—The Base.]
- [FIG. 52.—Details showing the size of the Magnet Bobbin.]
- [FIG. 53.—The Frame which supports the Electromagnets.]
- [FIG. 54.—The Main Bearings.]
- [FIG. 55.—The Shaft.]
- [FIG. 56.—Showing the Armature, Armature Bearing and the Connection Rod.]
- [FIG. 57.—Details of the Brushes and Brush Holder.]
- [FIG. 58.—Showing how a Flywheel may be made out of sheet iron.]
- [FIG. 59.—A Vertical Battery Power Motor.]
- [FIG. 60.—Details of the Field Frame of the Vertical Motor.]
- [FIG. 61.—Three-pole Armature.]
- [FIG. 62.—Six-pole Armature.]
- [FIG. 63.—Showing how the Coils on a Three-pole Armature are connected to the Commutator.]
- [FIG. 64.—Showing how the Coils on a Six-pole Armature are arranged and connected.]
- [FIG. 65.—Details of the Commutator.]
- [FIG. 66.—Details of the Bearings, Shaft, and Pulley.]
- [FIG. 67.—The Brushes and Brush Holder.]
- [FIG. 68.—Details of the Field Frame for the Horizontal Power Motor.]
- [FIG. 69.—Front view of the Field Frame.]
- [FIG. 70.—The Field Magnet Bobbin.]
- [FIG. 71.—Details of the Shaft, Rocker Arm, Bearing and Pulley.]
- [FIG. 72.—Rear view of the completed Horizontal Motor.]
- [FIG. 73.—Side view of the Horizontal Motor.]