Tesla Patents
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381,968 - Electro-Magnetic MotorCategory: Motors & Generators Country: United States Application Date: October 12th, 1887 Issue Date: May 1st, 1888 
My present invention is directed to the production and improvement of apparatus capable of more nearly meeting these requirements than those heretofore available, and though I have described various means for the purpose, they involve the same main principles of construction and mode of operation, which may be... more >>
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382,280 - Electrical Transmission of PowerCategory: Power Distribution Country: United States Application Date: October 12th, 1887 Issue Date: May 1st, 1888
The practical solution of the problem of the electrical conversion and transmission of mechanical energy involves certain requirements which the apparatus and systems heretofore employed have not been capable of fulfilling. Such a solution primarily demands a uniformity of speed in the motor irrespective of its load... more >>
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381,969 - Electro-Magnetic MotorCategory: Motors & Generators Country: United States Application Date: November 30th, 1887 Issue Date: May 1st, 1888
In an application filed by me October 12, 1887, No. 252,132, I have shown and described a novel form of electro-magnetic motor and a mode of operating the same, which may be generally described as follows: The motor is wound with coils forming independent energizing-circuits on either the armature or field-magnet, or... more >>
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382,279 - Electro-Magnetic MotorCategory: Motors & Generators Country: United States Application Date: November 30th, 1887 Issue Date: May 1st, 1888
In a former application, filed October 12, 1887, No. 252,132, I have shown and described a mode or plan of operating electric motors by causing a progressive shifting of the poles of one or both of the parts or elements of a motor—that is to say, of either the field magnet or magnets or armature, or both. I... more >>
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382,281 - Electrical Transmission of PowerCategory: Power Distribution Country: United States Application Date: November 30th, 1887 Issue Date: May 1st, 1888
The motor is wound with coils forming independent energizing-circuits on the armature, which is a cylinder or disk mounted to rotate between two opposite magnetic poles. These coils are connected up with corresponding induced or current-producing circuits in an alternating current generator. As a result of this, when... more >>
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381,970 - System of Electrical DistributionCategory: Power Distribution Country: United States Application Date: December 23rd, 1887 Issue Date: May 1st, 1888
The invention relates to those systems of electrical distribution in which a current from a single source of supply in a main or transmitting circuit is caused to induce by means of suitable induction apparatus a current or currents in an independent working circuit or circuits. The main objects of the invention are... more >>
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382,282 - Method of Converting and Distributing Electric CurrentsCategory: Power Distribution Country: United States Application Date: December 23rd, 1887 Issue Date: May 1st, 1888
The invention relates to those systems of electrical distribution in which a current from a single source of supply in a main or transmitting circuit is caused to induce, by means of suitable induction apparatus, a current or currents in an independent working circuit or circuits. The main objects of the invention are... more >>
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390,413 - System of Electrical DistributionCategory: Power Distribution Country: United States Application Date: April 10th, 1888 Issue Date: October 2nd, 1888
In previous applications for patents made by me I have shown and described electrical systems for the transmission of power and the conversion and distribution of electrical energy, in which the motors and the transformers contain two or more coils or sets of coils, which were connected up in independent circuits with... more >>
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390,414 - Dynamo-Electric MachineCategory: Motors & Generators Country: United States Application Date: April 23rd, 1888 Issue Date: October 2nd, 1888
In certain patents granted to Charles F. Peck and myself—notably in Patents No. 381,968 and No. 382,280, May 1, 1888—I have shown and described a plan of constructing and operating motors, transformers, and the like, by alternating currents conveyed through two or more independent circuits from a generator... more >>
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390,820 - Regulator for Alternate-Current MotorsCategory: Motors & Generators Country: United States Application Date: April 24th, 1888 Issue Date: October 9th, 1888
My invention is an improvement in systems for the electric transmission of power; and it consists in a means of regulating the speed and power of the motor or motors. The system for use with which the invention is more particularly designed is one in which the motors, or what may be in certain cases their... more >>
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