The mobile contact can consist of a freely swinging lever that intercepts the path of the coins close to the entrance of the path, while the fixed contact can consist of a metal piece defining {HEAD ~ the rolling route} for {TAIL ~ the coins} 
The mobile contact can consist of a freely swinging lever that intercepts the path of the coins close to the entrance of the path , while the fixed contact can consist of a metal piece defining { HEAD ~ the rolling route } for { TAIL ~ the coins }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL