No. 83-2622. Argued May 8, 1984. Decided September 27, 1984. As Corrected November 2, 1984. D. Reed Scism, Roberts, Ryder, Rogers Scism, Indianapolis, Ind., for petitioner. Barbara J. Baird, Fillenwarth, Dennerline Groth, Indianapolis, Ind., for respondent. Charles Donnelly, N.L.R.B., Washington, D.C., for intervening party-respondent. Petition for review from the National Labor Relations Board. Before WOOD and ESCHBACH, Circuit Judges, and KELLAM, Senior District Judge. The Honorable Richard B.