Glossary Results for prefix "ao"
Arc Roof Carriage | 19th century carriage with the roof formed of a simple (fairly flat) arc, sometimes known as a “compass” roof. Like most other railways, the LNWR in the 20th century built larger carriages with low elliptical (”cove”![]() ![]() See examples in this part of the Carriages exhibtion (and following pages) which show examples of Arc and Cove roofs. |
|
At Danger | A signal![]() ![]() |
|
Atlantic Wheel Arrangement | A generic name for the the 4-4-2 wheel arrangement. See Whyte wheel arrangement![]() |
|
Automatic Warning System (AWS) | A device which indicates the position of a distant signal![]() |
|
Axle | The steel shaft on which the locomotive wheels are mounted. The axle not only holds the wheels to gauge![]() ![]() |
|
Axle-box | This provides the bearing between the axle![]() ![]() ![]() ![]() |
|
Axle Guard | A modeller’s term (often one word) to describe the hornguides![]() ![]() ![]() |
|
Axle Load | The static weight carried by an individual axle. This determined the routes over which vehicles (especially locomotives) might run taking into account the strength of the infrastructure, that is bridges and track work. From the 1930s it was realised that the dynamic axle load (allowing for the “hammer blow”![]() |
|
Axle Weight | The weight carried on any axle of a train. The maximum allowed would be limited by the track design, bridges and other structures on the line. | |
Aylesbury Railway (AR) | Incorporated 1836. Transferred to L&B in 1846. |