S&DJR Sentinels
Encyclopedia
The Somerset and Dorset Joint Railway
(S&DJR) Sentinel locomotives were two small vertical-boilered, chain-driven steam locomotive
s for shunting
. They were built by Sentinel Waggon Works
, who also produced similar designs for industrial customers.
-built saddle tanks, 24A, 25A and 45A. They were both used for shunting coal wagons on the colliery branchlines around Radstock
. They were built to a reduced loading gauge
as they had to pass under the Tyning Arch which had only 10 in 10 in (3.3 m) clearance.
They were taken into London, Midland and Scottish Railway
(LMS) stock in 1930 and renumbered 7190–7191. After nationalisation in 1948, they became 47190–47191 under British Railways. 47191 was withdrawn in 1959 from Bath Green Park
and 47190 in 1961 from Bristol Barrow Road. Both were scrapped.
Gasworks No. 37 Joyce, originally built in 1927 (works No. 7109), is under restoration at the Somerset & Dorset Railway Heritage Trust
at Midsomer Norton
.
Somerset and Dorset Joint Railway
The Somerset & Dorset Joint Railway – almost always referred to as "the S&D" – was an English railway line connecting Bath in north east Somerset and Bournemouth now in south east Dorset but then in Hampshire...
(S&DJR) Sentinel locomotives were two small vertical-boilered, chain-driven steam locomotive
Geared steam locomotive
A geared steam locomotive is a type of steam locomotive which uses reduction gearing in the drivetrain, as opposed to the common directly driven design....
s for shunting
Shunting
Shunting is an event in the neuron which occurs when an excitatory postsynaptic potential and an inhibitory postsynaptic potential are occurring close to each other on a dendrite, or are both on the soma of the cell....
. They were built by Sentinel Waggon Works
Sentinel Waggon Works
Sentinel Waggon Works Ltd was a British company based in Shrewsbury, Shropshire that made steam-powered lorries, railway locomotives, and later, diesel engined lorries and locomotives.-Alley & MacLellan, Sentinel Works, Jessie Street Glasgow:...
, who also produced similar designs for industrial customers.
Service
The two locomotives were both built in 1929 and given the S&DJR numbers 101 and 102. The locomotives replaced three older HighbridgeHighbridge, Somerset
Highbridge is a small market town situated on the edge of the Somerset Levels near the mouth of the River Brue. It is in the County of Somerset, and is approximately north west of Taunton, the county town of Somerset. Highbridge is in the District of Sedgemoor, being situated approximately north...
-built saddle tanks, 24A, 25A and 45A. They were both used for shunting coal wagons on the colliery branchlines around Radstock
Radstock
Radstock is a town in Somerset, England, south west of Bath, and north west of Frome. It is within the unitary authority of Bath and North East Somerset and had a population of 5,275 according to the 2001 Census...
. They were built to a reduced loading gauge
Loading gauge
A loading gauge defines the maximum height and width for railway vehicles and their loads to ensure safe passage through bridges, tunnels and other structures...
as they had to pass under the Tyning Arch which had only 10 in 10 in (3.3 m) clearance.
They were taken into London, Midland and Scottish Railway
London, Midland and Scottish Railway
The London Midland and Scottish Railway was a British railway company. It was formed on 1 January 1923 under the Railways Act of 1921, which required the grouping of over 120 separate railway companies into just four...
(LMS) stock in 1930 and renumbered 7190–7191. After nationalisation in 1948, they became 47190–47191 under British Railways. 47191 was withdrawn in 1959 from Bath Green Park
Bath Green Park railway station
Green Park railway station is a former railway station in Bath, Somerset, England. For some of its life, it was known as Bath Queen Square.-Architecture and opening:...
and 47190 in 1961 from Bristol Barrow Road. Both were scrapped.
Preservation
Neither of the Radstock Sentinels survived into preservation. However, a similar locomotive, former CroydonCroydon
Croydon is a town in South London, England, located within the London Borough of Croydon to which it gives its name. It is situated south of Charing Cross...
Gasworks No. 37 Joyce, originally built in 1927 (works No. 7109), is under restoration at the Somerset & Dorset Railway Heritage Trust
Somerset & Dorset Railway Heritage Trust
The Somerset & Dorset Railway Heritage Trust operates a railway museum at Midsomer Norton railway station and plans to run passenger trains south towards Chilcompton in the near future. It should not be confused with the Somerset and Dorset Railway Trust at Washford railway station. The Midsomer...
at Midsomer Norton
Midsomer Norton
Midsomer Norton is a town near the Mendip Hills in Somerset, England, south-west of Bath, north-east of Wells, north-west of Frome, and south-east of Bristol. It has a population of 10,458. Along with Radstock and Westfield it used to be part of the conurbation and large civil parish of Norton...
.