In case the adoption of the budget ordinance is delayed until after July 1, the governing board shall make interim appropriations for the purpose of paying salaries, debt service payments, and the usual ordinary expenses of the local government or public authority for the interval between the beginning of the budget year and the adoption of the budget ordinance. Interim appropriations so made shall be charged to the proper appropriations in the budget ordinance. (1927, c. 146, s. 14; 1955, cc. 698, 724; 1971, c. 780, s. 1.)