Apparatus for producing insulating glass filled with a gas other than air

In apparatus for producing insulating glass filled with a gas from uncompacted insulating glass, comprising

• two substantially vertical planar plates, which are horizontally spaced apart to define between them a space adapted to receive uncompacted insulating glass, at least one of said plates being displaceable transversely to its plane relative to the other of said plates, each of said plates having a top horizontal edge and two substantially vertical edges, which edges are aligned with corresponding edges of the other of said plates,
• the improvement residing in that
• sealing elements are associated with the top horizontal edges and each pair of corresponding substantially vertical edges of said plates,
• each of said sealing elements is retractable to a non-sealing position and extensible to a sealing position and adapted to seal said space at said corresponding edges in said sealing position,
• a horizontally elongated container is disposed under said plates and has a top rim, which is connected and sealed to said plates and defines an opening communicating with said space between said plates,
• said container has a bottom member that is adapted to be lifted toward and lowered from said rim, and
• lifting means are provided, which are operable to lift and lower said bottom member.