remove time signature engr. inside music expression

[Mehmet Okonsar]

Can we remove the Time Signature Engraver of the staff INSIDE a music 
expression?
I mean: i do it often in a layout block but I do not know the expression to do 
it, temporarily, inside a music expression
something like:
------------
{... notes..
.\context Staff \remove "Time_signature_engraver"
.\context Staff \consists "Time_signature_engraver"
(those doesn't work of course)
...notes...}
-- 
Mehmet Okonsar,
pianist-composer-conductor
www.okonsar.com