| 摘要 |
A method of manufacturing a polygonal glazing panel comprising sheets 61, 62 which are joined together along the margin of the panel using heat-activatable bonding medium 66,67 which is electrically conductive and/or in contact with electrically conductive material 63 comprised within the panel and which is activated in situ by induction heating is characterized in that for the induction heating use is made of a polygonal inductor loop each of whose sides 50, 51, 52, 53 and 68 comprises a conductor or conductors of tubular bar or of rod form, the loop being spaced from the work 61 to 67 and so disposed in relation to the margin of the work that the bonding medium 66, 67 is heated simultaneously at all positions along the joint or joints to be formed. In apparatus for performing this invention the induction heating means comprises an inductor in the form of a polygonal loop which can lead around the edge of a panel assembly, each side of the loop being formed by a conductor or conductors of tubular bar or of rod form and at least one side of the loop is movable relative to one or more other sides of the loop. |
