No. 76-1702. Submitted May 17, 1977. Decided June 29, 1977. Rehearing and Rehearing En Banc Denied July 20, 1977. Kenneth V. Bryne, St. Louis, Mo., for appellants. Kalvin M. Grove, Chicago, Ill., for appellee, Sears, Roebuck and Co.; Burton L. Reiter, Chicago, Ill., on brief. Harry H. Craig, Wiley, Craig, Armbruster, Wilburn Mills, St. Louis, Mo., for appellee, Unions; Clyde E. Craig, St. Louis, Mo., on brief. Appeal from the United States District Court for the Eastern District of Missouri. Before