Casement window operator with adjustable bushing

摘要

A housing assembly which can accommodate either one of a split arm drive mechanism and a dual arm drive mechanism for a casement window. The housing assembly includes an escutcheon and a base as well as an adjustable bushing that is adjustable to at least two positions, one for the split arm drive mechanism and the other for the dual arm drive mechanism. A worm drive assembly is contained within the housing assembly for driving the drive mechanism. A handle is snap fitted into the worm drive assembly for rotating the worm drive assembly and moving the casement window. A spacer is mounted to the base to enable the base to fit a wide variety of window configurations.