AN ORDINANCE REQUIRING OWNERS OF DISCO HOUSES, MUSIC BARS, LOUNGES, RESTAURANTS, MOVIE HOUSES, THEATERS, AMUSEMENT AND DANCE HALLS, ASSEMBLY HALLS, CLUB ROOMS, INSTITUTIONAL BUILDINGS, EDUCATIONAL OCCUPANCIES, MERCANTILE OCCUPANCIES, MIXED OCCUPANCIES AND BUSINESS OCCUPANCIES TO INSTALL BATTERY-OPERATED AUTOMATIC EMERGENCY LIGHTS IN THEIR BUSINESS ESTABLISHMENTS.