by increasing the cross-section of the connecting pieces, e.g. by expanding the connecting pieces with wedges

Full Title

Window sashes, door leaves, or like elements for closing openings; Layout of fixed or moving closures, e.g. windows; Features of rigidly-mounted outer frames relating to the mounting of wing frames > Corner joints or edge joints for windows, doors, or the like frames or wings > using separate connecting pieces, e.g. T-connecting pieces > characterised by the way the connecting pieces are fixed in or on the frame members > by increasing the cross-section of the connecting pieces, e.g. by expanding the connecting pieces with wedges

Classification Context

Section:

FIXED CONSTRUCTIONS

Class:

DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS, IN GENERAL; LADDERS

Subclass:

FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES