It is unlawful for any person, firm, association or corporation within the corporate limits of the city to conduct any public dance or other type of public entertainment to which the general public is invited or admitted, between the hours of one a.m. and six a.m. or any day; provided, however, that such public dance or entertainment may be conducted at such time is a written permit for same has previously been granted by the city. (Ord. 1137 1/2, §1, 1947).