I collect old electric shavers but know nothing about the motors. I would like to be able to describe them by "type?" or name, i.e. ("This is a ? motor.") They are 1940s era items and use 110-120v and 10-15w. In the photo - the shaver on the left can only use AC - the shaver on the right can use either AC or DC and has "contact points". These are common among many manufactures of the period. Many thanks. Ron
View attachment Remington Electric Motors.JPG

 

Interesting, they both appear to be vibrators rather than (rotating) motors.

 

Hi Bob - the AC/DC motor on the right side actually has a rotating weight centered on an oval shaft just below the points. The oval shaft opens and closes the points as the rotating weight spins.

 

Hi Bob - the AC/DC motor on the right side actually has a rotating weight centered on an oval shaft just below the points. The oval shaft opens and closes the points as the rotating weight spins.

Oh, okay.

 

Really, the "motor" on the right might also be a vibrator type. The simple check is to mark a line on the end of the shaft and observe if the mark rotates as the device operates.
It may also be operating one or the other of the coils as an alternative to a commutator in a two-pole motor. You can verify that without running the motor, by connecting an ohm meter across the line cord pins and manually rotating the motor shaft.

 

Thanks for the info - (and if I may further show my lack of knowledge) - Do you mean that since the left motor has an arm that moves back and forth; it is a vibrator motor because the AC charges and discharges an electromagnet? AND - The right motor does in fact rotate continuously in one direction - (with AC loading a capacitor) - is this some type other than a "vibrator" motor? I am trying to reach for a descriptive name in order to describe these motors to others. Many thanks for your help.

 

OK, the clipper on the right side does look like it would have a rotating shaft. Switches instead of a commutator!! what a good way to produce a lower speed motor for AC or DC!! And contacts much simpler to clean,

 

Well after a bit of self-education (with hints from those responding) - the motor descriptions for which I'm looking are:

(LEFT Motor) - AC Electromagnet Motor
(RIGHT Motor) - Induction Motor: Single Phase, Capacitor-Running, Using Switch Contacts ("points")

 

AND, those are motor types that you will not see anywhere except in hair-cutting devices.

 

AND, those are motor types that you will not see anywhere except in hair-cutting devices.

correct - it was fun trying to figure it out.