As used in this chapter, the following terms shall have the meanings indicated:
Includes any vehicle consisting of an arrangement or combination of two wheels, 20 inches or more in diameter, one following the other, supported by a frame propelled wholly or in part by the feet acting upon pedals.
The Director of Police of the City.
Includes one or more persons of either sex, natural persons, corporations, partnerships, associations and joint-stock companies, residing in or having a place of business in the City.