The invention provides a corner transfer linkage (10) for a window or door panel, particularly for pivoted widows such as awning or casement windows, and more particularly for a securing system thereof where activation movements and loads are required to be transferred around a corner of intersecting frame members. The corner transfer linkage (10) comprises a first slider (12) to be slidably mounted on a first track for movement along said first track, a second slider (13) to be slidably mounted on a second track for movement along said second track, with said first track inclined to the second track by an internal corner angle (α), and a substantially inflexible interconnecting rocker member (13) pivotally connected to each slider (11, 12) at respective first and second pivot joints (17, 18) to pivot about respective first and second pivot axes (P1, P2), so as to extend between the sliders. Slidable movement of said first slider (11) along said first track causes slidable movement of the second slider (12) along said second track. The invention extends to a securing system including the corner transfer linkage (10) and a window or door panel including said securing system.