It is unlawful for any minor not employed by the railroad company to jump on or from any railroad car while the car is in motion. City Code, 1879, art. 40, §10 1893, art. 41, §10 1927, art. 39, §10 1950, art. 29, §8 1966, art. 20, §8 1976/83, art. 20, §8 Ord. 1868-011 Ord. 48-479 Ord. 99-526