No. 17840. February 18, 1960. Rehearing Denied April 14, 1960. Melvin J. Welles, Atty., Thomas J. McDermott, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Stuart Rothman, Gen. Counsel, N.L.R.B., Washington, D.C., for petitioner. Warner F. Brock, Houston, Tex., for respondent. Before TUTTLE, CAMERON and WISDOM, Circuit Judges. TUTTLE, Circuit Judge. This is a companion case with the two others between the Board and this Union, Nos. 17,789, 5 Cir., 275 F.2d 408 and 17,800, 5 Cir