#$%^&*AU2007254615B220120419.pdf#####ABSTRACT The compact sickle drive mechanism is adapted to incorporated into or beneath a floor or pan of a header at a location between and spaced from the 5 sides or ends of the header, and can be configured for reciprocatingly driving two knife assemblies disposed in end to end relation, in opposite directions, such that potentially vibratory forces, including those generated by the moving masses of the knife assemblies, at least substantially cancel one another and thus are not transferred to structure of the header. As a result, the overall width of the header 10 and structure thereof can also be reduced.3/19 ~7b 015- o 4 7 07 ya 7Y 7q 5 7 AA haR so 60-7
