{HEAD ~ The battery} 30 is pushed towards {TAIL ~ the cover} 20, and each protrusion 35 moves the respective wedge 254 away from the beam 154, due to the engagement of a given inclined plane 352 and the corresponding wedge 254 
{ HEAD ~ The battery } 30 is pushed towards { TAIL ~ the cover } 20 , and each protrusion 35 moves the respective wedge 254 away from the beam 154 , due to the engagement of a given inclined plane 352 and the corresponding wedge 254
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH