The Pot Journey (1950)

Based on the novel by Edith Unnerstad about a man, Pip Larsson, who invents a new kind of pot which makes a sound when the stuff you are cooking is ready. As he can't pay the bills he and his family get evicted but luckely they have a couple of carriages they can live in and travel round the country, selling the new kind of pots Pip Larsson has invented.