An electrical conductor connected with {TAIL ~ the sliding brush} can extend through {HEAD ~ the housing}, for example through the housing cover 
An electrical conductor connected with { TAIL ~ the sliding brush } can extend through { HEAD ~ the housing } , for example through the housing cover
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH