Chapter IV: Small Power Motors

A VERTICAL POWER MOTOR ..........................................
CONNECTIONS FOR THE THREE POLE ARMATURE .........................
CONNECTIONS FOR THE SIX-POLE ARMATURE ...........................
A HORIZONTAL POWER MOTOR. .......................................

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. .......................