EXHIBIT 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the inclusion in this Report on Form 8-K of our reports dated April 16, 1997 and March 11, 1999 relating to the financial statements of The Kirk & Blum Manufacturing Company for the years ended December 31, 1996, December 31, 1997 and December 31, 1998. /s/ Rippe & Kingston Co. PSC ------------------------------ Rippe & Kingston Co. PSC Cincinnati, Ohio December 14 , 1999