Nos. 10570, 10617. Argued November 4, 1966. Decided February 6, 1967. J.W. Alexander, Jr., Charlotte, N.C. (Ernest W. Machen, Jr., and Blakeney, Alexander Machen, Charlotte, N.C., on brief), for petitioner Overnite Transp. Co. Hugh J. Beins, Washington, D.C., (Michael F. Grdina, Willoughby, Ohio, on brief), for petitioner Teamsters Local Union No. 171. Gary Green, Atty., N.L.R.B. (Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, and
No. 17965. March 25, 1960. Rehearing Denied July 28, 1960. Melvin Pollack, Atty., Thomas J. McDermott, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Stuart Rothman, Gen. Counsel, A. Brummel, Atty., N.L.R.B., Washington, D.C., for petitioner. Alexander E. Wilson, Jr., John W. Wilcox, Jr. (of Wilson, Branch Barwick), Atlanta, Ga., for respondent. Before RIVES, Chief Judge, and CAMERON and WISDOM, Circuit Judges. WISDOM, Circuit Judge. In this case, as in National Labor Relations