A.
No person shall, within the limits of any street or highway, throw stones or other missiles or engage in any game or exercise which might interfere with the free, safe and convenient use of such street or highway by any person traveling or passing along the same. No person shall project by means of any air pipe, air gun, spring gun, sling or like instrument any missile or substance whatsoever in or into any public street, highway, court, square or place within the City.
B.
No person shall operate or use any power-propelled model airplane in any public place within the City except with the approval of the board or officer having charge of such place.