Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Publication of ES209609A1publicationCriticalpatent/ES209609A1/en
An alternating current motor more particularly for the drive of recording facilities in which the number of poles of the stator can be varied by switching so that the motor can rotate at least at two different speeds and in which the rotor is of the shorted type for asynchronous starting characterized in that a part of the rotor in the axial direction comprises a number of body poles which is equal to a number of poles of the stator and because another part of the rotor in the axial direction comprises another number of body poles which is equal to the other number of poles of the stator after switching the stator in such a way that the motor can rotate at different speeds as a synchronous motor. (Machine-translation by Google Translate, not legally binding)
ES0209609A1952-06-051953-06-02An alternating current motor (Machine-translation by Google Translate, not legally binding)
ExpiredES209609A1
(en)
Provision and means to increase the starting torque in small and synchronized electric motors. (Machine-translation by Google Translate, not legally binding)