Light powered by induction of variable impedance motor

Claim 2

In a multi-speed fractional horsepower universal motor the combination of a multi-tapped field coil for speed control purposes, means connecting one end of the coil in a series circuit with the armature to one side of an A.C. electrical potential, a plurality of ON-OFF switches any one of which turns the motor ''''on'''' and selectively connects the taps of the field coil to the other side of the electrical potential, and electrical light means interconnecting said one side of the electrical potential and the other end of said coil in series through the coil and switches to said other side of the electrical potential.

Claim 3

The combination called for in claim 1 including a rectifier connected in series with said field and armature, and means connecting said light means in a circuit parallel to said series circuit to bridge said rectifier.

Claim 4

The combination called for in claim 1 including a rectifier connected in series with said field coil and armature between one side of said A.C. electrical potential and one of said switches, and switch means interconnecting said one side of the electrical potential and said armature to bridge said rectifier.

Claim 5

In a multi-speed fractional horsepower universal motor driven appliance having a working area; an electric light supported by said appliance to illuminate the working area, A motor stator including a paramagnetic core and a field wound thereon, said field including a plurality of serially connected field coils having individual tap leads at the connections that are disposed intermediate the ends of said field, armature means magnetically coupled with said stator and serially connected in circuit to one end of said field, a plurality of switches separately interconnecting said tap leads to one side of a source of electrical potential and selectively actuated to close and energize field coils in series with one another, means for connecting one end of said circuit to the other side of a source of electrical potential, and means connecting said light between said other end of the circuit and the other end of said field in series through non-energized field coils and actuated switch to said other side of the electrical potential.

Claim 6

In a multi-speed fractional horsepower universal motor driven appliance having a working area; an electric light supported by said appliance to illuminate the working area, A motor stator including a paramagnetic core and a field wound thereon, said field including a plurality of serially connected field coils having individual tap leads at the connections that are disposed intermediate the ends of said field, armature means magnetically coupled with said stator and serially connected in circuit to one end of said field, a plurality of switches separately interconnecting said tap leads to one side of a source of electrical potential and selectively actuated to close and energize field coils in series with one another, means for connecting one end of said circuit to the other side of a source of electrical potential, and means connecting said light between said other end of the circuit and the other end of said field in series through non-energized field coils and actuated switch to said other side of the electrical potential.

Claim 7

The combination called for in claim 4 including a rectifier connected in series with said field and armature means, and means connecting said light means in a circuit parallel to said series circuit to bridge said rectifier.

Claim 8

The combination called for in claim 4 including a rectifier connected in series with said field coil and armature between one side of said A.C. electrical potential and one of said switches, and switch means interconnecting said one side of the electrical potential and said armature to bridge said rectifier.

Claim 9

In a multi speed fractional horsepower universal motor driven appliance having a working area, a low wattage electric light supported by said appliance to illuminate the working area, a motor stator including a paramagnetic core and field wound thereon, said field including a plurality of serially connected field coils having individual tap leads at the interconnections intermediate the ends of said field, a multi-switch having contact means and a plurality of movable contacts connected to said tap leads and selectively actuated to close one at a time, armature means magnetically coupled with said stator and serially connected in circuit to one end of said field, means for connecting one end of said circuit to one side of a source of A.C. electrical potential, means connecting said contact means to the other side of said source, and means connecting said light between said one end of the circuit and the other end of said field in series through the field coils, their interconnections and the selectively actuated contact to said other side of said source.

Claim 10

In a multi speed fractional horsepower universal motor driven appliance having a working area, a low wattage electric light supported by said appliance to illuminate the working area, a motor stator including a paramagnetic core and field wound thereon, said field including a plurality of serially connected field coils having individual tap leads at the interconnections intermediate the ends of said field, a multi-switch having contact means and a plurality of movable contacts connected to said tap leads and selectively actuated to close one at a time, armature means magnetically coupled with said stator and serially connected in circuit to one end of said field, means for connecting one end of said circuit to one side of a source of A.C. electrical potential, means connecting said contact means to the other side of said source, and means connecting said light between said one end of the circuit and the other end of said field in series through the field coils, their interconnections and the selectively actuated contact to said other side of said source.

Claim 11

The combination called for in claim 7 including a rectifier connected in series in said circuit. 9. The combination called for in claim 8 including a switch shunting said rectifier with the closure of said movable contacts.

Claim 12

In a multi speed fractional horsepower universal motor driven appliance having a working area, an electric light supported by said appliance to illuminate the working area, a motor stator including a paramagnetic core and a field wound thereon, said field including a plurality of serially connected field coils having individual tap leads at the connections that are disposed intermediate the ends of said field, switch means having a common contact and a plurality of movable contacts connected to said tap leads and selectively actuated to engage said common contact one at a time, armature means magnetically coupled with said stator and serially connEcted in circuit to one end of said field, means for connecting one end of said circuit to one side of a source of electrical potential, means connecting said common contact to the other side of said source, and means connecting said light between said one end of the circuit and said other side of said source through the other end of said field and said movable contacts.

Claim 13

In a multi speed fractional horsepower universal motor driven appliance having a working area, an electric light supported by said appliance to illuminate the working area, a motor stator including a paramagnetic core and a field wound thereon, said field including a plurality of serially connected field coils having individual tap leads at the connections that are disposed intermediate the ends of said field, switch means having a common contact and a plurality of movable contacts connected to said tap leads and selectively actuated to engage said common contact one at a time, armature means magnetically coupled with said stator and serially connEcted in circuit to one end of said field, means for connecting one end of said circuit to one side of a source of electrical potential, means connecting said common contact to the other side of said source, and means connecting said light between said one end of the circuit and said other side of said source through the other end of said field and said movable contacts.