Building cladding system

A building cladding system comprising:

• an infill panel having an inwardly facing peripheral portion,
• a plurality of frame members provided by elongate mullions and transoms,
• an outwardly facing abutment provided on at least one of said frame members,
• a clamping member, and
• operating means for moving said clamping member into clamping engagement with said infill panel to clamp said inwardly facing portion of said infill panel against said outwardly facing abutment,
• said operating means comprising:
• a first member extending inwardly from said clamping member to an intermediate position disposed inwardly of said panel,
• an elongate second member extending laterally relative to said first member,
• means mounting said second member on said at least one frame member for sliding movement longitudinally thereof, and
• inter-engageable cam elements including a first cam element associated with said second member and a second cam element associated with said first member operably to interengage said first and second members at said intermediate position, wherein
• said second member extends from said intermediate position to a driving position disposed remotely from said intermediate position and accessible from a position disposed inwardly of said panel, and
• said second member is engageable at said driving position so as to be slidable longitudinally of said at least one frame member to cause sliding movement of said first cam element associated with said second member, parallel to said infill panel and longitudinally of said at least one frame member, and to cause movement of said second cam element associated with said first member, in a direction generally perpendicular to said infill panel, to move said clamping member into clamping engagement with said infill panel.