Re: Wiring a 110V two-phase motor?
Since it's "Klaxon" branded and rotates at 100rpm, I wonder if it was intended to operate the shutters on a pulsed 'nee-naw' type siren? If so, it may have been powered from two of the three phases feeding the blower motor, maybe via a transformer or even taps on the blower's windings. For such a light duty, the extra cost of a winding for the third phase probably wasn't justified.
I think a 180 degree phase difference is unlikely. It's pretty hard to get anything to rotate with two phases 180 degrees apart (do the trig). You need a quadrature component. The standard 120 degrees is fine.
You might be able to get the motor to run using a step down transformer (even less than 110V should be OK for testing) and connecting one winding straight to the supply and the other via a capacitor or inductor to create some phase shift.
Chris
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