Photograph: Steam Engine "Lady of the Lake" at Crewe

PHOTOGRAPH: Steam Engine "Lady of the Lake" at Crewe.

Endorsed: This engine worked the Irish Mail from Holyhead for many years.

The London and North Western Railway (LNWR) 7 ft 6 in Single 2-2-2 class was a type of express passenger locomotive designed by John Ramsbottom. The class is better known as the Problem class for the first locomotive built, or the Lady of the Lake class for the example that was displayed at the International Exhibition of 1862. The first examples were built shortly after the acquisition of the Chester and Holyhead Railway by the LNWR, and primarily saw use on the Irish Mail route from London to Holyhead. They were the first locomotives to be fitted with water scoops, which could refill the tender from water troughs between the tracks without stopping. One such locomotive, No. 229 Watt, was the first to use them in non-stop run from Holyhead to Stafford in 1862, while conveying despatches relating to the Trent Affair. The Lady of the Lake class was the second type of locomotive designed by Ramsbottom. It was typical of express passenger locomotives of its era in having a single driving axle with large (7 ft 6 in (2.286 m) in this instance) driving wheels to achieve high speeds, while avoiding the friction associated with coupled driving wheels. (Coupling was done primarily on goods locomotives, where tractive effort was more important than speed.) The locomotives bore a resemblance to 2-2-2 designs by Patrick Stirling and Joseph Beattie, yet could also be regarded as a development of Alexander Allan's designs under Ramsbottom's predecessor, Francis Trevithick. They had an open cab, a smokebox door that opened vertically, and open slots on the "splashers" that covered the driving wheels.

Dim cyfyngiadau/ No Restrictions

Adnau preifat / Private deposit

Os gwelwch yn dda archebwch y dogfenau gan ddefnyddio y rhif cyfeirnod amgen (lle ddarperidd) / Please order documents using the alternative reference number (where provided)

Mae copiau clawr caled o`r catalogau ar gael yn Archifau Ynys Môn ac yn y Gofrestr Cenedlaethol Archifau. Polisi Archifau Ynys Môn yw catalogio yn iaith y ddogfen./Hard copies of the catalogue are available at Archifau Ynys Môn / Anglesey Archives and the National Register of Archives. It is the policy of Archifau Ynys Môn / Anglesey Archives to catalogue in the language of the document.

Cyflwr da /Good condition

Compiled by Amanda Sweet for Archifau Ynys Môn / Anglesey Archives

https://en.wikipedia.org/wiki/LNWR_Lady_of_the_Lake_class

Mae'r holl gofnodiadau sy'n cydymffurfio â pholisi casglu Swyddfa Gofnodi Cyngor Sir Ynys Môn wedi eu cadw /All records which meet the collection policy of the Anglesey Archives have been retained.

Ni ddisgwylir croniadau/Accruals are not expected