No. 74-1421. Argued January 24, 1975. Decided February 12, 1975. Rehearing Denied March 24, 1975. Alan D. Longman, Atty., N.L.R.B. (Peter G. Nash, Gen. Counsel, John S. Irving, Deputy Gen. Counsel, Patrick Hardin, Associate Gen. Counsel, Elliott Moore, Deputy Associate Gen. Counsel, and William H. DuRoss, III, Atty., N.L.R.B., on the brief) for petitioner. William G. Haynes, Topeka, Kan. (Eidson, Lewis, Porter Haynes, Topeka, Kan., on the brief) for respondent. Blake, Uhlig Funk, Kansas City, Kan