working in textile mills.(A factory was defined as a place where more than 50 people were employed in a manufacturing process).Then in 1847 women and children were banned from working more than 10 hours a day in textile factories.The 1878 Factory Act defined a factory as any place where machines were used in manufacturing.Meanwhile in 1842 the Miners Act banned women and boys under 10 from working underground in mines.Furthermore nobody under 18 was allowed to work at night (from 8.30 pm to 5.30 am).In 1867 the law was extended to all factories.