Opinion by
Not to be published in full.
Gen. No. 47,688.
First District, First Division.
June 15, 1959.
Rehearing denied July 10, 1959.
Released for publication July 23, 1959.
John C. Melaniphy, Corporation Counsel, of Chicago (Sydney R. Drebin, Rita Ivy Epstein, *174Assistant Corporation Counsels, of counsel) for defendants-appellants;
Robert J. Nolan (Patrick W. Dunne, of counsel) for plaintiffs-appellees.
Opinion by
Not to be published in full.