The motor 20 is enclosed within a casing 23 which has a downwardly depending pin 231 pivotally connected to {HEAD ~ the other end} of {TAIL ~ the oscillating arm} 24 
The motor 20 is enclosed within a casing 23 which has a downwardly depending pin 231 pivotally connected to { HEAD ~ the other end } of { TAIL ~ the oscillating arm } 24
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 TAIL OTH