(1) Upon a vote of two-thirds (2/3) of the members of the city council, cities of the first class may borrow money for the ordinary operating expenses of the city after January 1 of each year in anticipation of the property tax collections collectible in that year.
(2) The sum so borrowed shall not exceed, in the aggregate, fifty percent (50%) of the amount of city taxes extended on the county tax books for collections during the year.
(3) These cities shall have power to issue to the lender thereof negotiable but noninterest-bearing evidences of indebtedness for moneys so borrowed, to be executed by the mayor and city clerk in behalf of the city.