In the Circuit Court of the United States, Eastern District of Pennsylvania, no. 44, October sessions, in equity: between Richmond Safety Gate Company, complainant, and Samuel H. Ashbridge, Mayor of the city of Philadelphia; Abraham L. English, Director of Public Safety of said city; Thomas W. Jenkins, Lincoln Van Gilder, Ferdinand M. Beamer, elevator inspectors attached to the Division of Elevator Inspection of the Bureau of Building Inspection of said city, and such other elevator inspectors as may be attached to said Division of Elevator Inspection, and the names of whom are to the complainants unknown, defendants : [defendant's brief].