- Quarter glass
Quarter glass (or quarter light) on
automobilesand closed carriagesmay be a side window in the front door or located on each side of the car just forward of the rear window of the vehicle. [ [http://www.motorera.com/dictionary/QUA.HTM#QuarterWindow "Quarter window 1." defined by the Dictionary of Automobile Terms] , accessed on 2008-06-04.] Only some cars have them. In some cases the fixed quarter glass may set in the corner or "C-pillar" of the vehicle. [ [http://www.motorera.com/dictionary/QUA.HTM#QuarterLight "Quarter light 2." defined by the Dictionary of Automobile Terms] , accessed on 2008-06-04.] Quarter glass is also sometimes called a valence window. [ [http://www.getusedparts.com/auto_parts_guide/Q/ Auto Parts Guide — "Q"] , accessed on 2008-06-04.]
This window may be set on hinges and is then also known as a vent window. Most often found on older vehicles on the front door, it is a small roughly triangular shaped glass in front of and separate from the main window that rolls down (see top right image). It has hinges and a latch, thus it can be opened for additional ventilation. Most vehicles since the 1960s have removed this feature for cleaner styling, known as "ventless" windows. Some vehicles also have glass that rolls down like a regular window or have hinged opening vent quarter windows for rear seat passengers. [ [http://www.autobodytoolmart.com/dent9.html "Glass Removal and Installation, Page 1" Automotive Tutorials] , accessed on
2008-06-04.] This may be a side window between the B-pillar and the C-pillar, and in the case of minivansbetween the C and D-pillars (examples include the Chrysler Town and Country). [ [http://www.motorera.com/dictionary/HI.HTM#HingedQuarterWindow "Hinged quarter window." defined by the Dictionary of Automobile Terms] , accessed on 2008-06-04.]
They can also be non-movable and mounted in the door itself because that section of the rear side glass would not be able to slide down because of the cut out in the rear doors to clear the rear wheel housings. The fixed portion of the glass is separated from the main window that rolls down by a slim opaque vertical bar (see top left image of a close-up of rear door).
A quarter glass can be found set in the body ahead of the front door opening (examples include the
Chevrolet Lumina APVand eighth generation Honda Civic4-door sedan).
In some automobiles the fixed quarter glass may set in the corner or "C-pillar" of the vehicle. There are also designs that incorporate two quarter windows (see bottom right image) one that is part of the door and the second mounted in the roof pillar. This arrangement may help to increase
driver visibility. In this case, the quarter glass in the C-pillar would not be called an " opera window."
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