No. 7726. Argued October 16, 1958. Decided October 22, 1958. Fred S. Landess, Atty., National Labor Relations Board, Washington, D.C. (Jerome D. Fenton, Gen. Counsel, Thomas J. McDermott, Assoc. Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, and Arnold Ordman, Atty., National Labor Relations Board, Washington, D.C., on brief), for petitioner. J.W. Alexander, Jr., Charlotte, N.C., and C.B. Winberry, Statesville, N.C. (Adams, Dearman Winberry, Statesville, N.C., and Blakeney Alexander, Charlotte