![]() "10 Old Car Features We Desperately Miss". "Intermediate sedans – big cars of the future". ^ Dunne, Jim Hill, Ray (February 1976).^ "The Pacer and the Rabbit: A Tale of Two Subcompacts".Standard Catalog of American Cars 1805–1942. ^ "Vent Windows on Your Car: Function of Vent Windows".Archived from the original on 14 March 2006. ![]() "From Pillar to Post: More Automotive Definitions". Non-opening, fixed quarter windows are installed like windshields in that they are bonded to the body with urethane. In this case, the quarter glass in the C-pillar would not be called an " opera window". This arrangement may help to increase driver visibility. There are also designs that incorporate two quarter windows (see bottom left image) one that is part of the door and the second mounted in the roof pillar. In some automobiles the fixed quarter glass may set in the corner or "C- pillar" of the vehicle. 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). They are 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 required to clear the rear wheel housings. Ī quarter glass can be found set in the body or A- pillar ahead of the front door opening (examples include the Buick Encore, Chevrolet Lumina APV, Toyota Prius, Opel Astra J, Mitsubishi Endeavor, Fiat Grande Punto, Suzuki SX4 sedan, and the 8th-generation Honda Civic sedan). This may be a side window between the B- pillar and the C-pillar, and in the case of US minivans between the C and D-pillars (examples include the Chrysler Town and Country power-operated venting glass). The Toyota Century had vent windows that would pivot out, and were operated with a dedicated electric switch for the front and a separate vent window in the rear doors. During the 1980s, the Lincoln Town Car had a version where the vent window would retract into the door separately from the primary side window, so that the vent window would always drop down first and was the last to return after the main window was rolled back up. Some vehicles also have glass that rolls down like a regular window or have hinged opening vent quarter windows for rear seat passengers. As automobile air conditioning became more popular, front window vents disappeared by the 1980s. ![]() Although the front venting windows "provide unmatched ventilation, air turbulence and leakage outweigh the benefits". ![]() Some automakers continued to offer vent windows with the American Motors made AMC Pacer having optional front vent windows for increased flow-through ventilation. Most vehicles since the 1960s have removed this feature for cleaner styling known as "ventless" windows. It was assigned to the Ternstedt Manufacturing Company, a GM subsidiary that manufactured components for Fisher Body. 1933 was the first year all GM vehicles were installed with optional vent windows which were initially called "No Draft Individually Controlled Ventilation" later renamed "Ventiplanes" which the patent application was filed on 28 Nov. It has hinges and a latch, so it can be opened for additional ventilation. Many early closed cars, such as the 1933 Pontiac Economy Eight had front and rear vent windows called "ventiplanes" and were installed on all GM products that year. Most often found on older vehicles on the front doors, it is a small roughly triangular glass in front of and separate from the main window that rotates inward (see top right image) for ventilation. This window may be set on hinges and is then also known as a vent window, wing window, wing vent window, or a fly window. Quarter glass is also sometimes called a valence window. In some cases, the fixed quarter glass may set in the corner or "C- pillar" of the vehicle. Quarter glass (or quarter light) on automobiles and closed carriages may be a side window in the front door or located on each side of the car just forward of the rear-facing rear window of the vehicle. Stationary quarter glass in the rear door
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