In the quarter of a century between 1830 and 1855, the railway locomotive developed from the small sisters of Rocketto the broad gauge monsters of Daniel Gooch, with a boiler pressure nearly three times that of Rocketand weighing in at nearly 40 tons (eight times the weight of Rocket). There was a marked increase in loads, speeds and reliability as the railways spread across the country from their cradle in the North West, with several thousands of...