The HST door is well suited for up to 6 m wide openings, that require a lot of glass space with minimal visual obstructions. It is a comfortable solution, because it utilizes large window panes, which provide large unobtrusive glass surfaces with a great view. Ball bearings make sliding the movable casement easy. The fixed and the movable casements are installed separately on two levels. The design is suitable for large passageways.
Scheme A
The door comprises of 2 large parts. One is fixed and the other, movable, part can be move parallel to the fixed part.
Scheme C
The door is comprised of 4 part. 2 are fixed and 2 are movable. The 2 parts in the middle can be moved parallel to the fixed respective parts in the sides.
Scheme D
Scheme F
