 Complete the following phrase:  Crane was a nephew of Chicago lumber dealer Martin Ryerson. He moved to Chicago from New Jersey in 1855. Richard and his brother Charles soon formed R. T. Crane  Bro., which manufactured and sold brass goods and plumbing supplies. The new company soon won contracts to supply pipe and steam-heating equipment in large public buildings such as the Cook County courthouse and the state prison at Joliet. In 1865, R. T. Crane and Brother was incorporated and the name of the company was changed to the Northwestern Manufacturing Company. It began to manufacture a full line of industrial valves and fittings in cast iron, malleable iron and brass. By 1870, when it employed about 160 people, it was making elevators as well. After the 