Today’s invention is a washing line made of a glass-fibre rod (just like a uniform-diameter fishing rod).
This bistable strut would be moored securely at either end, in a slot housing which would allow motion of the rod only in the vertical plane.
The line would begin in the lower, dotted configuration.
Once loaded with washing, it would be pushed upwards into the other stable position, allowing the washing to be held high up in the faster airstream and without the usual problem of large items such as sheets potentially dragging on the ground.
The nice thing about this approach is that several such lines could be set up with slots at the same two locations but oriented in slightly off-vertical planes.
Two mooring points would thus allow several washing lines to be supported which did not greatly interfere with each other’s drying capability.