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Automatic Stone Signal in Pass of Brander


These instructions appeared in the Appendix to the Working Time Table, dated 1st May, 1915.

AUTOMATIC STONE SIGNAL IN PASS OF BRANDER.-Between the 51¾ and 56 Mile Posts in Pass of Brander, 16 of these are erected on the South or Loch side, and 1 near the 54 Mile Post on the North or hill side of the Line, at irregular distances from each other, and at points where the best view can be obtained of them from either direction. All these Signal Posts carry an Up and a Down Arm, with the exception of the one at the east end, which carries a Down Arm only, and the one at the west end, which carries an Up Arm only. The Signals are connected by a number of wires forming a screen which runs along the top of the railway slope on the hill side of the Line, and so long as the screen wires remain intact, and not broken by stones coming down from the mountain, the Signals remain clear; but in the event of a stone falling from the mountain, and one or more wires being broken, Up and Down Signals go to Danger. Every alternate wire passes the first Signal Post and is connected with the Second Signal Post, and when a Driver gets a Danger Signal he must reduce speed and advance cautiously, sending his Fireman forward to ascertain if there is any obstruction on the Line, until a second clear Signal is reached-as there may be one clear Signal between two Danger ones-or until the last special Signal for the falling stones is passed.

These have been fitted with Commutators and connected with Electric Alarm Bells in Signal Box and Signal Watchman's House at Awe Crossing, in Foreman Platelayer's House at Falls of Cruachan, and in Foreman Platelayer's House at Bridge of Awe.

They are divided into two separate circuits. The Signals from No. 1 to No. 10 on east side of the Crossing form one circuit, and those from No. 11 to No. 17 on west side of the Crossing form the other.

In the event of any of the Stone Signal Arms on the former, or east circuit, going to Danger, the Alarm Bell in Signal Box and Watchman's House at Awe Crossing and in Foreman Platelayer's House at Falls of Cruachan will ring, and any of those on the latter, or west circuit, going to Danger, the Alarm Bell in the Signal Box and Watchman's House and in Foreman Platelayer's House at Bridge of Awe only will ring.

When any of these Bells give an alarm during the night, immediate steps must be taken by all concerned to have the Line inspected and the obstruction, if any, removed; and in the event of an Alarm Signal being given during the day, when the Watchman and Platelayers may be out, the Signalman at Awe Crossing must take the best and quickest means to inform them, and any other men who may be working on the circuit affected, of what has taken place. The Signalman must also immediately advise Loch-Awe and Taynuilt by telephone or telegraph of what has occurred, and the Station Masters at these Stations must inform and instruct the Drivers and Guards of all Trains or Light Engines concerned to proceed cautiously and keep a sharp look-out through the Pass of Brander.

After the Signal Watchman has satisfied himself that the obstruction has been removed, and ascertained from the Foreman Platelayer, or man in charge of the length, that the Line is again clear for traffic, he will, as soon as possible thereafter, clear his Stone Signals and arrange for the switches at the different places being placed in their normal position. The Watchman must, in addition, go himself, and inform the Signalman at Awe Crossing that the obstruction has been removed and that the Line is again clear for traffic, and the Signalman must advise Loch-Awe and Taynuilt accordingly.

When the Signal Watchman requires to inspect, test, oil, repair, regulate, or do anything else that may necessitate the raising of any of the Stone Signal Arms, he must first give the "Watchman's Inspection or Test" Signal as hereafter noted. Should any accident or obstruction occur during the night on the west circuit that is likely to block the Line for any length of time, the Signalman or Signal Watchman may call the assistance of the men at the Falls of Cruachan by giving them the "Obstruction Danger" Signal.

In the event of an Accident or Snowstorm taking place along the Line, and the assistance of the men at Falls of Cruachan being required, the Signalman at Awe Crossing will give them the "Be Ready for Accident or Snowstorm" Signal.

Watchman's Inspection or Test Signal, 3 Short Bells.
Obstruction Danger Signal-to be given twice, 5      "
Be Ready for Accident or Snowstorm Signal-to be given twice, 7      "

These instructions do not in any way interfere with or supersede Rules 250, 251, 252, or 253, which must, in all cases, be strictly adhered to by all concerned.