It shall be unlawful for merchants, or others doing business in the city, to expose their goods or property for sale, display, advertisement or other purposes, in such a manner as to rest upon or project over the sidewalks of this city, or to be suspended from the awning post or upon wires, ropes, or framework suspended between the awning posts or in any manner to obstruct the free use of said sidewalks and passage thereon by the public.
('80 Code, § 28-8) Penalty, see § 210-99