A device, first used on locomotives of the LNWR in the UK in 1860 to allow water to be collected from a water trough laid along the track whilst the train was moving. The scoop was mounted on the tender and was lowered by hand when required to collect water. It was essential that the crew raised the scoop before the end of the trough or before the tender was filled to capacity and water spilled through the vent at the tender top. If it did, the leading vehicle would be showered with the excess water and, if there were any open windows, so would the unsuspecting passengers inside.