FIGS 1 and 2 show in each case {HEAD ~ the schematic representation} of {TAIL ~ a device} 1 for changing the timing of intake and exhaust valves in an internal combustion engine 
FIGS 1 and 2 show in each case { HEAD ~ the schematic representation } of { TAIL ~ a device } 1 for changing the timing of intake and exhaust valves in an internal combustion engine
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH