Volume Eleven - Pre-Victorian to the Present Day - some more aspects - The Steam Navvy and the Dock Extension of 1883 . . .

The scoop is now drawn forward by means of a chain and winding drum, thereby cutting all before it, according to the radius described by the length of the scoop handle. As soon as the scoop is filled, the man who has charge of it eases the foot-brake, allowing it to come out of its cut. When lifted high enough, the jib is then swung round until the scoop is brought over the wagon to be filled ; the attendant now by means of a trigger line draws the spring catch bolt, allowing the hinged bottom to drop down, discharging its contents into the wagon. The jib is then swung round again, the scoop lowered, and the operation repeated.

After the machine has excavated all that is within its reach, the anchor screws are slackened off, extra sleepers with a short length of rails are then laid down in front of it, and by means of the propelling gear it is moved forward the required distance. The anchor screws are then screwed down in order to prevent the machine from slipping back when at work.' - Engineering. - Scientific American [1070] [499] 1st September 1877.

	1882 - The British Trade Journal advertisement for Ruston, Proctor & Company, Sheaf Ironworks, Lincoln and 20 Budge Row, London, E.C.
	1883 - A few more photographs of the Ruston, Proctor & Company Steam Navvy at work on Barry and Cardiff Docks.