‘The Bug’ – Ruston 0-4-0DM

‘The Bug’ is the nickname for the green Ruston & Hornsby diesel shunter based on the railway.

The loco is not fitted with vacuum brakes so cannot haul passenger trains, but is one of the most useful bits of kit on the railway, along with Larry the Loader and the Self Propelled Crane. As a diesel loco, the time required to start up is a fraction of the that required to bring a steam engine up to working pressure, you just switch it on and go! This means it can be used to shunt wagons and locos about on non-operating days.
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0-4-0 refers to the 4 coupled wheels, and the DM stands for Diesel Mechanical, meaning the engine drives the wheels through a mechanical transmission, rather than hydraulic or with electric traction motors as found on most modern locos.

The Headlight and Makers' Plate

The Headlight and Makers’ Plate

Shunting two vans off the inspection pit

Shunting two vans off the inspection pit

Shunting the two operational steam locos into the shed

Shunting the two operational steam locos into the shed

The locomotive, like most of the rolling stock in the museum’s collection, has a local connection. For many years it worked at the British Gas site in Hallen Marsh near Avonmouth, and it was there that these two photos were taken.
These photographs are linked here from the Bristol Rail Archive site and are the property of Mike P.
622px-Seabank1

Seabank2

The loco was donated to the museum by British Gas in 1995. It was subsequently repainted green with red motion and bufferbeams, and given a fictional shedplate (82 was the Bristol area shed code under BR).
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TBT – Another Ruston at Canon’s Marsh

While the BHR currently operates the ex-British Gas shunter (Known as ‘The Bug’), this isn’t the first Ruston & Hornsby Diesel to have worked on the docks railways in Bristol.
In July 1952, just over the water at the Bristol Gas Company’s works at Canon’s Marsh (Now the site of luxury new build and re-build flats), a 4-wheel diesel mechanical shunter is at work.

This photo is reposted from Rail Photoprints and can be purchased at this link.