1 EXHIBIT 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the use in this registration statement of our report dated February 14, 1996, (except with respect to the matter discussed in Note 16, as to which the date is October 17, 1996) and to all references to our Firm included in this registration statement. /s/ ARTHUR ANDERSEN LLP ARTHUR ANDERSEN LLP Chicago, Illinois February 10, 1997