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|
| Description |
|
Beats |
| Call Attention |
1 |
| Emergency call attention, number of beats in rapid succession |
|
| |
| 'Is Line Clear?' for: |
|
|
| Express passenger train, express diesel railcar, breakdown van train going to clear the line, 'light engine' going to assist disabled train, empty coaching stock timed at express speed? ('A' headlamps) |
4 |
| |
| Ordinary passenger train, 'mixed' train, breakdown van train not going to clear the line? ('B' headlamps) |
3 - 1 |
| |
| Branch line train (only on main line to junction)? ('B' headlamps) |
1 - 3 |
| |
| Rail motor-car, auto-train or streamline railcar? ('B' headlamps) |
3 - 1 - 3 |
| |
| Express freight, or ballast train conveying a stipulated number of vacuum-braked vehicles connected by vacuum pipe to the engine and authorised to run at a maximum speed of 35 m.p.h.? ('C' headlamps) |
2 - 2 - 3 |
| |
| Parcels, newspaper, fish, meat, fruit, milk, horse, cattle or perishable train composed entirely of vacuum-fitted stock with the vacuum pipe connected to the engine? ('D' headlamps) |
5 |
| |
| Express freight, livestock, perishable or ballast train partly vacuum fitted with not more than one-third vacuum braked vehicles connected by vacuum pipe to the engine? ('D' headlamps) |
4 - 4 |
| |
| Empty coach stock train not specially authorised to carry 'A' headlamps? ('D' headlamps) |
2 - 2 - 1 |
| |
| Express freight, fish, meat, fruit or cattle train, ballast train or
breakdown van train not proceeding to an accident? ('E' headlamps) |
3 - 2 |
| |
| Through fast freight train conveying through load? ('F' headlamps) |
1 - 4 |
| |
| Light engine or light engines coupled together or engine and brake van? ('G' headlamps) |
2 - 3 |
| |
| Freight, mineral or ballast train or train of empties carrying through load to destination? ('H' headlamps) |
3 - 4 - 1 |
| |
| Freight, mineral or ballast train stopping at intermediate stations? ('J' headlamps) |
3 |
| |
| Train conveying out of gauge or exceptional load? ('J' headlamps) |
2 - 6 - 2 |
| |
| Branch freight train (only on main line to junction)? ('K' headlamps) |
1 - 2 |
| |
| Ballast train, freight train or inspection train requiring to stop in section? ('K' headlamps) |
1 - 2 - 2 |
| |
|
| Trolley required to go into or pass through tunnel |
|
2 - 1 - 2 |
| |
| Train approaching |
1 - 2 - 1 |
| |
| Train entering section |
2 |
| |
| Section clear but station or junction blocked |
3 - 5 - 5 |
| |
| Line clear to clearing point only |
2 - 2 - 2 |
| |
| Engine assisting in rear of train |
2 - 2 |
| |
| Train out of section, or obstruction removed |
2 - 1 |
| |
| Engine arrived |
2 - 1 - 3 |
| |
| Train drawn back clear of station |
3 - 2 - 3 |
| |
| Blocking back inside home signal |
2 - 4 |
| |
| Blocking back outside home signal |
3 - 3 |
| |
| Blocking back outside home signal for train already in section |
1 - 2 - 3 |
| |
| Shunt train for following train to pass |
1 - 5 - 5 |
| |
| Opening signal box |
5 - 5 - 5 |
| |
| Closing signal box |
7 - 5 - 5 |
| |
| Testing bells |
16 |
| |
| Time signal |
8 - 5 - 5 |
| |
| Lampman or fogman required |
9 - 5 - 5 |
| |
| Testing slotted signal |
5 - 5 - 5 - 5 |
| |
| Take off slot train waiting |
3 - 4 |
| |
| Cancel 'Is Line Clear?' |
3 - 5 |
| |
|
| Emergency bell signals: |
| Obstruction danger |
|
6 |
| |
| Stop and examine train |
7 |
| |
Train passed without tail lamp
To box in advance |
9 |
| To box in rear |
4 - 5 |
| |
| Train divided |
5 - 5 |
| |
| Train or vehicles running away on right line |
4 - 5 - 5 |
| |
| Train or vehicles running away on wrong line |
2 - 5 - 5 |
| |
| |
| Taken from 'GWR Regulations for Train Signalling on Double Lines', 1936 |
