No. 77-1904. Argued April 12, 1978. Decided July 21, 1978. D. Peter DeBruyne, Rockford, Ill., for petitioner. Carol A. DeDeo, N.L.R.B., Washington, D.C., for respondent. Petition for review from the National Labor Relations Board. Before PELL and WOOD, Circuit Judges, and SOLOMON, Senior District Judge. The Honorable Gus J. Solomon, Senior District Judge of the United States District Court for the District of Oregon, is sitting by designation. HARLINGTON WOOD, Jr., Circuit Judge. This matter comes