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Stations, Junctions, etc
Engine Sheds
Other
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Miscellaneous: Operating Equipment & Practices
Signalling Procedure: misc_equip250
![Another extract from the ‘Great Western Railway Regulations for Train Signalling on Double and Single Lines’](miscellaneous/misc_equip250.jpg) |
An extract from the Great Western Railway Regulations
for Train Signalling on Double and Single Lines detailing the operation
of the Webb and Thompson Single Line Electric Train Staff System and a
photograph showing the instrument with a B configuration Train
Staff inset. The Webb and Thompson Train Staff instrument was invented and
patented by LNWR Engineers Francis Webb and Arthur Thompson in 1889. The Train
Staffs were similar in appearance to the wooden staffs which had been used
previously, but were considerably heavier, weighing approximately three and a
half pounds. This made them difficult to transfer when the locomotive was
moving and resulted in the development of the lighter tablet and token systems.
In Warwickshire, the Henley-in-Arden Branch used the Electric Train Staff
between Rowington Junction and Henley-in-Arden and the Halesowen Joint Railway
used the Electric Train Staff System between Halesowen and Rubery and between
Rubery and Longbridge West Signal Box. The single line from Hatton Branch
Junction via Stratford-on-Avon to Honeybourne also used the Electric Train
Staff until most of this route was doubled during the construction of the North
Warwickshire Line in 1907. The remaining single line section between Hatton
West Junction and Bearley East Junction was subsequently converted to the
Tyers Electric Key Token system.
Each Train staff was an iron tube 1¼inch in diameter
and 23 inches long, with five brass rings of 2 inch diameter. It was identified
with a brass nameplate fixed to one end of the staff. The configuration was
determined by the distance between the centre lines of the fourth and fifth
brass rings. The normal train staff colour code was:
Configuration |
Ring Spacing |
Staff Colour |
A |
3½ inches |
Red |
B |
3 inches |
Blue |
C |
2½ inches |
Green |
Robert Ferris
back
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