(Chicagotribune) - Ken Pelletier to help bring New York concept to West Loop. New York hipsters know the name Michael Dorf. By the end of 2012, in-the-know Chicagoans will too. Dorf founded New York's celebrated, bohemian concert venue, the Knitting Factory, in the mid-1980s. He resigned in 2002 and sold his stake in the business.A few years later he started New York's City Winery. The winery's second outpost will open, in Chicago, by midyear. Construction has begun on its West Loop site, a 28,000-square-foot former food-storage warehouse at 1200 W. Randolph St.