Sealed double glazing unit

A sealed double glazing unit comprising:

• an outer pane and an inner pane which are spaced apart by perimeter sealing means, and at least one fixing means for fixing the unit to a supporting member, which fixing means passes through a hole in one of said panes and is clamped to said one pane only inwardly of said perimeter sealing means without obstructing the outer edge of the unit, said fixing means being operable to permit the unit to flex under wind load without impairing the sealing of the unit by said perimeter sealing means.

A sealed double glazing unit comprising:

• an outer pane and an inner pane which are spaced apart by perimeter sealing means, and at least one fixing means for fixing the unit to a supporting member, which fixing means passes through a hole in said outer pane and through a hole in said inner pane at a positioin spaced inwardly of said peripheral sealing means without obstructing the outer edge of the unit, said fixing means being clamped to said outer pane and passing through said hole in said inner pane with a clearance sufficient to permit the unit to flex without impairing the sealing of the unit by said perimeter sealing means, sand said fixing means including a boss positioned between and sealed to both said panes.

A sealed double glazing unit comprising:

• an outer pane and an inner pane which are spaced apart by perimeter sealing means, and at least one fixing means for fixing the unit to a supporting member, which fixing means passes through a hole in one of said panes and is clamped to said one pane only inwardly of said perimeter sealing means without obstructing the outer edge of the unit, said fixing means including a fixing member which passes through said hole in said one of the panes, and a boss through which said fixing member passes, said boss being positioned between and sealed to both said panes and passing through a sealed hole in the other of said panes with a clearance sufficient to permit the unit to flex under wind load without impairing the sealing of the unit by said perimeter sealing means.

A sealed double glazing unit comprising:

• an outer pane and an inner pane which are spaced apart by perimeter sealing means, at least one fixing means located inwardly of said perimeter sealing means for fixing the unit to a supporting member without obstructing its outer edge, said fixing means including a fixing bolt whose head engages in a bush which is part of said fixing means and which is a free fit in a hole in said outer pane, said bush being clamped in said outer pane by a disc which is tightened on said fixing bolt, said fixing bolt passing through a hole in said inner pane with clearance sufficient to facilitate the flexing of the unit under wind load without impairing the sealing of the unit by said perimeter sealing means, and said glazing unit further including an annular spacer which is sealed to both said panes and surrounds said fixing bolt and said hole in said inner pane.

A sealed double glazing unit comprising:

• an outer pane and an inner pane which are spaced apart by perimeter sealing means, at least one fixing means located inwardly of said perimeter sealing means for fixing the unit to a supporting member without obstructing its outer edge, said fixing means being clamped to said inner pane only, said fixing means including a boss through which a fixing bolt of said fixing means passes, said boss being positioned between and sealed to both said panes and being located with clearance in a hole in said outer pane and being sealed within that hole, said boss having a central, externally-threaded extension which passes through a hole in said inner pane, said fixing means further including a threaded disc screwed on to said extension of said boss to clamp said boss to said inner pane, said fixing bolt passing through said boss and its extension for fixing to a supporting member, and the clearance between said boss and said hole in said outer pane being sufficient to facilitate flexing of the unit under wind load without impairing the sealing of the unit by said perimeter sealing means.

A sealed double glazing unit of rectangular form comprising:

• an outer pane and an inner pane which are spaced apart by perimeter sealing means, and fixing means adjacent each corner of the unit, and at a position spaced inwardly of said perimeter sealing means, for fixing the unit to a supporting member without obstructing the outer edge of the unit, which fixing means is attached to one of said panes, said fixing means being operable to permit the unit to flex under wind load without impairing the sealing of the unit by said perimeter sealing means.

A glass assembly comprising:

• an array of sealed multiple glazing units each comprising an outer pane and an inner pane which are spaced apart by perimeter sealing means, and at each of a plurality of locations spaced inwardly of said perimeter sealing means, fixing means for fixing the unit to a support without obstructing the outer edge of the unit, each said fixing means being attached to one of said panes, said fixing means being operable to permit the unit to flex under wind load without impairing the sealing of the unit by said perimeter sealing means, and said fixing means being fixed to supporting members with the outer edges of the units sealed edge-to-edge to constitute a glass wall assembly.