Geared casement window hinges
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United States of America Patent
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Mar 1, 1994
Grant Date -
N/A
app pub date -
Jul 6, 1992
filing date -
Jul 6, 1992
priority date (Note) -
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Abstract
A hinge structure for supporting a window sash on a window frame. The hinge structure includes sash arms secured to opposite sash sides, and a shaft having gears fixed to its ends and supported by tracks for longitudinal movement along opposite sides of the frame. The gears engage racks on each of the tracks. The sash arms are carried with the shaft in its longitudinal movement along the tracks.
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