A resilient member 27 is engaged with the projections 26 at the lower end of {TAIL ~ the casing} 23 for steadying {HEAD ~ the motion} of the oscillating arm 24 
A resilient member 27 is engaged with the projections 26 at the lower end of { TAIL ~ the casing } 23 for steadying { HEAD ~ the motion } of the oscillating arm 24
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH