No. 13229. June 21, 1961. George V. Gallagher, Chicago, Ill., Arthur C. O'Meara, Donald H. Bussman, Chicago, Ill., of counsel, for petitioners. Ann Leonard, Chicago, Ill., amicus curiƦ. Marcel Mallet-Prevost, Asst. Gen. Counsel, Julius G. Getman, Attorney, Stuart Rothman, General Counsel, Dominick L. Manoli, Associate General Counsel, Melvin J. Welles, Attorney, National Labor Relations Board, Washington, D.C., for respondent. Before HASTINGS, Chief Judge, CASTLE, Circuit Judge, and GRUBB, District