Notice:- those who dont like this idea or img they can ignore
And i have no information about the low raise and high raise problem in future i dont know whether they have any plans for high raise low raise
I suggest making a high raise and low raise pantograph
If railways make 1 high raise and 1 low raise it may be...
more... costly for railways
My idea is to make a high & low raise panto
Structure type pichkari
On pressure from base can help in high raise
On pressure from top can help to low raise
Just it requires some liquid which adds more pressure
And help it to function in high raise and low raise