No. 12793. April 6, 1960. Rehearing Denied May 4, 1960. Thomas J. McDermott, Associate Gen. Counsel, Melvin J. Welles, Atty., Stuart Rothman, Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Alfred Avins, Atty, N.L.R.B., Washington, D.C. for petitioner. Thomas R. McMillen, Chicago, Ill., James B. Moran, Chicago, Ill., for respondent. Bell, Boyd, Marshall Lloyd, Chicago, Ill., of counsel. Benjamin M. Robinson, New York City, Gen. Counsel, Matthew Silverman, New York City, Atty., Amalgamated