Patents on induction motors filed by GE on Feb 9, 1924 . Mar 31, 2014 5:22:57 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by coldspaces on Mar 31, 2014 5:22:57 GMT While trying to match up the patents on my CG control I ran across these. Again I haven't yet read them much but they are from that era, these may be on our Monitor Tops? Don't think we have posted these before.1637040 - Self-excited induction motor www.google.com/patents/US1637040?pg=PA2&dq=1637040&hl=en&sa=X&ei=SPs4U5_8KefmsASW_4HABQ&ved=0CEYQ6AEwAg1637041 - Induction motor www.google.com/patents/US1637041?pg=PA1&dq=1637041&hl=en&sa=X&ei=afo4U7qmCcjPsATZ7YCYBQ&ved=0CEYQ6AEwAgEdit: After looking at the wiring I guess these are not Monitor Top motors. If we find this does not pertain fell free to delete it.