In message , Tim
Streater writes
In article
,
harry wrote:

Trolley buses don't have pantographs because they can drive all over
the road, they have two poles which can be easily unhooked from the
wires.

I know that you soppy date, I just didn't know what the term is (if
there is one), so I used pantograph instead.

Um, trolleys :-)

--
Graeme