Why and on what issues did the positions of British liberals and conservatives converge in the second half of the 19th century?

By 1870, more than 37 million mechanical spindles were operating in the English textile industry, and only 450 thousand workers served them. There were also significant successes in heavy industry. Smelting of pig iron, which in 1840 amounted to 1.4 million tons, by 1870 exceeded 6 million tons. Coal mining in just 15 years (1855-1870) doubled – from 61.5 million to 123.7 million tons. All the latest discoveries and inventions (even if they were not made in England) were quickly introduced into production. As soon as the first refrigeration units appeared, they were immediately used to deliver giant consignments of frozen meat from Australia and New Zealand to Europe.