Disclosed is {TAIL ~ a braking system} for braking movement of a window sash within {HEAD ~ a window frame} jamb liner 
Disclosed is { TAIL ~ a braking system } for braking movement of a window sash within { HEAD ~ a window frame } jamb liner
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH