I'll be trying to figure this out myself if I ever get my order from Wayne (new spokes). I've not taken my tire & wheel off the bike yet, but a quick glance makes me think that wire will have to come out of one side of the pulley to allow it to expand enough to get off the edge of the rim.
Most of the guys on here have bolted on pulleys. Not sure when they changed to the clip on pulley, but it appears to have been in '57.
Mike Sal