Window locking arrangement

In a window arrangement of the type having a pair of sashes to which the window panes are mounted with the sashes being vertically slidable to selectively control the amount of window opening, locking means being provided for locking juxtaposed edges of the sashes to each other, the sashes being formed from hollow members and being mounted to a hollow frame in such a manner that each sash may pivot inwardly to facilitate cleaning of the window, the improvement being a locking member being provided on each side on one of said sashes, at least one slot being formed in each side of said hollow frame corresponding in size and position to a respective locking member, means for mounting each locking member for selective engagement in a respective slot to thereby m maintain a seal of the sash, said locking means comprising a pair of locking mechanisms for locking said lower sash to said upper sash, housing being mounted in each of said slots into which said locking member may be selectively moved, securing means securing said housing in its respective slot, said securing means including flange means at the open face of said housing, and wedge members on the end walls of said housing spaced from said flange means to capture the wall of the slot therebetween.