Friction brake for a vertical sliding window
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United States of America Patent
Stats
-
Nov 12, 1985
Grant Date -
N/A
app pub date -
Apr 23, 1984
filing date -
Apr 23, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plastic liner is attached to the jamb of a vertical sliding window and has a continuous 'U' channel with the channel opening facing the window opening and a block member slidingly engaged in the channel adapted to be coupled to the window sash and to one end of an elongated coil spring located in the channel which is attached at its other end to the liner. Primary frictional braking force is provided by a wing member inside the channel pushing against the block member so it rubs against a wall of the channel. The block member rides over a 'T' shaped rail in the channel and carries a set screw which can be reached through the channel opening to be threaded through the block member into contact with the top surface of the rail member for manually adjusting the frictional braking force on the block member.
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