Abstract: The method of manufacturing a single crank crankshaft (92) includes forging or casting a double crank (50) with two main shaft sections (54), with a common crankshaft axis (56), a crank web (58) integral with an end of each main shaft section (54) and a drive stud (60) integral with both crank webs (58) and having a drive stud axis (62) that is parallel to and spaced from the common crankshaft axis (56). Flat end surfaces (64) are machined on the ends of the main shaft sections and recesses (66) for machining centers (68) are drilled in each end of the double crank (50). The double crank (50) is then mounted in machining centers (68). A bearing engaging surface (70) and an axial locating surface (74) are machined on each crank web. A bearing engaging surface (76) is machined on each main shaft section (54). A seal engaging surface (78) is machined on each main shaft section (54) and splines (88) are formed on each end of the double crank (50).

Abstract: A single wiper mounted to a conventionally located, non-center wiper post is adapted to wipe a generally rectangular windshield. A primary arm and wiper blade are long enough to cover a main wipe pattern that covers most of the driver side of the windshield. A secondary arm and blade pivoted to the tip of the primary arm are continously pivoted by a drag link over a supplemental wipe pattern that covers the residual area on the passenger side. The width of the supplemental pattern remains relatively great until the secondary blade comes close to the windshield upper edge, where it is retracted to avoid collision.