The enumeration and specification of particular matters which must be included in every franchise granted shall not be construed to impair the right of the City to insert in such franchise such other and further conditions and restrictions as the Council may deem proper for the public welfare. [May 3, 1913, new sec. 77; rev. 1914, sec. 176; 1928 pub., sec. 176; 1942 recod., sec. 10-211.]