Patent ID: 8146880

Claim:
A method of removing a window sash from a window assembly, comprising the steps of: clamping a support apparatus to a frame unit of the window assembly, said support apparatus having means for supporting a window sash in an open position relative to the frame unit; adjusting the support means to support the window sash in said open position; releasing mounting means by which the window sash is mounted to the frame unit; and removing the window sash from the support means, wherein the support apparatus comprises an elongate support member which, when in use, clamps by a clamp to said frame unit of said window assembly in a generally vertical orientation, said clamp comprises a first clamp element and a second clamp element, each of said clamp elements being slidably mounted to said elongate support member, at least one clamp element comprises a C-section member for engaging a peripheral lip part of said window assembly frame unit.