OTIS elevator

OTIS elevator 1971 traction motor and controls.
DC motor Type 77L
150 V
75A
15HP
880 RPM

[@sigmathetaphialphabeta]

OMG they left a mousetrap on top of the machine??? HAHA why do mice want to be here? 😆

[@looney15224]

Lol no idea. Maybe they like to look down the shaft 🤣

[@TheTheo58]

Likely was a relay controller and MG set in the original installation. The traction machine is in amazing condition, communicator is very clean, no arcing from the brushes. I am curious if this maybe a mini traction machine, with the lower DC voltage.

[@caroleast9636]

Seems very odd seeing the commutator at that end of the motor! I must have seen thousands of commutators in 42 years as an Otis engineer, but the comms were always at the other end.

[@frommarkham424]

For a few months I loved staring at pictures of universal/brushed dc motors because I thought they looked nice. Now I don't.

[@donalddavis581]

MCE controller... I have thousands of hours with those...

[@richardkallio3868]

Lol, did anyone notice the mousetrap?

[@marekant7776]

What's this other smaller silver box on the ground for?

[@williamford7966]

That's the centrifugal governor. It is calibrated to active the car safeties if the elevator overspeeds.

[@marekant7776]

@@williamford7966 cool, thanks for explaining 😎👍