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Centrifugal switch
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==History== A 1927 patent for a centrifugal switch (US Patent #1,630,394<ref name="FPO1630394">{{cite web |last1=Royal |first1=Lee |title=Speed governor for electric motors |url=http://www.freepatentsonline.com/1630394.html |website=Free Patents Online |accessdate=4 June 2020}}</ref>) was granted to Royal Lee on May 31, 1927. It was the basis for the formation of the Lee Engineering Company.<ref name="SRP-LJpdf">{{cite web |last1=Jewell |first1=L. |title=A Thumbnail Sketch by L. Jewell c.1950 |url=https://www.seleneriverpress.com/images/pdfs/LEE_BIO_A_Thumbnail_Sketch_of_ROYAL_LEE_by_L_Jewell__ca_1950.pdf |publisher=Selene River Press |accessdate=4 June 2020}}</ref>
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