{HEAD ~ means} for controlling opening and closing of throttle means regulating {TAIL ~ supply} of fuel to said reciprocating internal combustion engine 
{ HEAD ~ means } for controlling opening and closing of throttle means regulating { TAIL ~ supply } of fuel to said reciprocating internal combustion engine
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH