In accordance with the present invention {TAIL ~ a rotary oscillating member} is rocked or pivoted back and forth by {HEAD ~ an operating member}, such as a lever 
In accordance with the present invention { TAIL ~ a rotary oscillating member } is rocked or pivoted back and forth by { HEAD ~ an operating member } , such as a lever
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH