It shall be the duty of the City Clerk to keep a journal of the proceedings of the Council and have charge of and preserve the records, bonds, papers, and other documents belonging to the City. It shall be his duty to attend the sessions of the Police Court and keep accurate records of its proceedings, and all judgments shall be entered by him within twenty-four hours after the same are rendered. He shall, in case of sickness or disability of the Mayor act, or in case of his absence from the City, or during any vacancy in the office of the Mayor, perform the duties of the Mayor and shall be vested with all powers necessary for the performance of such duties. He shall also perform such other duties pertaining to the fiscal affairs of the City or otherwise, as may be required of him by this Act or by the Council.