No person within the city shall carry on or about his person or in any vehicle, without authority of law, any pistol, revolver, dagger, razor, dangerous knife, stiletto, knuckles, sling-shot, loaded air rifle as defined by 720 ILCS 535/1, an object containing noxious or deleterious liquid, gas or substance or other dangerous weapon, or conceal the weapon on or about his person or his motor vehicle. (Amended during 1997 codification: Ord. 453 § 1, 1979: prior code § 27-2-7)