Whenever the City Council shall have determined to grant a junk dealer’s license to any applicant, the Collector of Revenue shall, upon payment of the license tax provided therefor, issue to the applicant a license to carry on the business. Every license so issued shall be upon the condition, whether or not expressed in the license, that it may be revoked at any time by the City Council, upon satisfactory proof that, in conducting the business, the licensee or any agent or employee of the licensee has or is violating any of the provisions of this chapter, or whenever, in the conduct of the business, the licensee or any person in charge of the business shall be convicted of larceny or of receiving stolen goods knowing the same to have been stolen. No license issued under the provisions of this chapter shall be transferred, either as to parties or location, except upon application and express permission therefor given by the City Council.