Self Starting Synchronous Motor
Summary: The Westclox M1 self-starting motor. Large rotor contained between plates, field coil located away from rotor to keep the bearings cool.
Application Date: 1934-09-10
Issue Date: 1935-09-17
Patent Number: 2015042
Serial Number: 743334
Notes: This is the M1 motor, which was used from 1938 until ca. 1940. The M2 and M4 motors, used until the mid-1950s, are smaller versions of the M1.
The torque of this motor in a rest position is actually greater than the torque attained when it is running at synchronous speed.
Inventor Information: Joseph A. Reinhardt and Oscar H. Kaminky, Peru, Ill., assignors to Western Clock Company, Peru, Ill., a corporation of Illinois
Patent Type: Utility
Patent Country: United States
Patent Category: Clock Synchronous Motor
Assignee: Western Clock Company 1912 to 1936
Inventor: Reinhardt, Joseph
Inventor: Kaminky, Oscar
Attorney: Neureuther, Andrew
Patent URLs: U.S. Patent Database; Google Patents