Electric motor rotator for christmas tree ornaments

作者: David Morrison

DOI:

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摘要: This invention pertains to the an electric motor of very small size which is adapted plug into a lamp socket string-set series connected decorative incandescent lamps so as utilize output rotate ornaments and like devices. A particular electrical unique design geared shown.

参考文章(9)
Robert E. Sanders, John L. Vertreese, Charles J. Flynn, Light string ornament circuitry ,(1985)
Jr. George B. Davis, Christmas tree lighting control ,(1975)
Thomas A Anastasio, Richard G Pokorski, Electric motor and housing-clutch assembly for use in high vacuum ,(1968)
Ernest Doherty Robert, Dynamo-electric machine ,(1925)