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Apparatus for exchanging Tablets


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

TRAIN TABLET REGULATIONS-APPARATUS FOR EXCHANGING TABLETS.-An Apparatus has been provided for exchanging Tablets at certain Crossing Places and Junctions on the Callander and Oban Line, as per list appended hereto, to all of which the following Regulations will apply.

Description.-The Apparatus consists of a metal standard erected in a suitable position on the left-hand side of both Down and Up Lines. A sliding lever is placed on the top of the standard, and affixed to the lever is a cross arm with a spring catcher at the one end and a delivery spring at the other. A corresponding Apparatus is fixed on the left-hand side of the Engine, but the position of the spring catcher and delivery spring is reversed.

The spring Tablet catcher on the ground standard receives the Tablet placed in the delivery spring of the Apparatus on Engine, and the delivery spring on the standard holds suspended the Tablet (enclosed in pouch) to be taken up by the spring catcher on Engine.

Instructions to Signalmen.-When a Tablet is to be given to the Driver of a Train by means of the exchanging Apparatus the Signalman must, whenever possible, obtain a Tablet from the Tablet Instrument in time to place it in position for exchanging without delaying the Train.

After obtaining the Tablet the Signalman must put it into the pouch provided for the purpose (the notch being turned to the bottom, and not towards the side of the pouch), and place the pouch with the Tablet in the delivery spring of the Apparatus on the ground standard, taking care that it hangs plumb.

The Signalman must then draw the lever working the sliding arm, so as to bring the Apparatus fully forward and into position for exchanging, and hold it firmly until the exchange has been made, and when the exchange has been effected the lever must be promptly reversed so as to withdraw the Apparatus clear of the Train.

The Signalman must then take the pouch with the Tablet received from the Engine Driver to the Signal Box and place the Tablet in the Instrument, clearing the Line in the ordinary way.

The slide on the ground standard must be kept clean and well oiled to ensure efficient working. The springs, &c., of the catcher must also be carefully attended to.

Should the Apparatus fail, the Signalman must advise the Station Master or Signalman at the Box or Station in the rear of the failure, who must inform Engine Drivers concerned accordingly, so that they may be prepared to take the necessary steps to make a manual exchange.

Station Masters and Signalmen concerned must see that the pouch with Tablet left in the ground standard by Engine of Night Mail is removed therefrom and placed in the Signal Box as early as possible on Sunday mornings.

Instructions to Engine Drivers.-Engine Drivers of Trains exchanging Tablets by the Apparatus must, after getting the proper fixed Signals, fix the Tablet (enclosed in pouch) on the delivery spring of the Apparatus upon the Engine (taking care that it hangs plumb) and push the sliding arm fully out into the position for exchanging, holding it firmly over till the exchange has been made. Immediately on the exchange being effected, the sliding arm must be withdrawn, and the Tablet pouch removed from the catcher, care being taken to see that it contains the proper Tablet for the Section in advance.

As the position of the Apparatus varies at the different Crossing Places and Junctions, Engine Drivers must note the positions carefully so as to ensure the safe and proper working of the Apparatus.

General Instructions.-In the case of any Train being stopped at a Tablet Station and at places where a Train may be brought to a stand at the Home Signal, the exchanging of Tablets must be made by hand, and not by the Tablet Exchanging Apparatus. Should the Apparatus upon the Engine fail, an Engine be run Tender first, or an Engine not fitted with the exchange Apparatus be run, the Signalman or Station Master must advise the Station or Signal Box in advance by Telegraph or Telephone of the occurrence, and the Engine Drivers of such Trains or Engines must give three distinct Cock Crows when approaching the Home Signal at each of the places mentioned below, so as to warn the Signalman against placing the Apparatus into position for exchanging Tablets.

In the event of the Engine catcher failing to pick up the Tablet, the Engine Driver must immediately make this known to the Signalman by giving one Long and two Short Whistles, and after bringing his Train to a stand, send his Fireman back for the missed Tablet, and the Signalman must meet the Fireman with it in order to reduce the delay to the Train as much as possible

Guards and Brakesmen, especially those in charge of the Night Mail, must pay particular attention to the closing of Carriage and Van doors before leaving Stations, and also see that the loads of wagons of hay and straw and other bulky traffic which are liable to shift on the journey, and come in contact with the Tablet Exchanging Apparatus, are properly secured. Should there be any chance of such coming in contact with any part of an Apparatus, the Guard or Brakesman in charge must instruct the Engine Driver to stop the Train short of same and arrange for the Apparatus being reversed clear of the Train.

Engine Drivers must not lower their Apparatus for the purpose of exchanging Tablets sooner than is necessary, and Platelayers and others who may be working at or near the Crossing Places or Junctions mentioned in these instructions, should always stand on the opposite or right-hand side of approaching Trains, as it might at any time be necessary to work important Passenger or Fish Trains by Engines fitted with the Tablet Exchanging Apparatus.

When it is necessary to work the Night Mail by an Engine not fitted with the Apparatus, the Locomotive Foreman at Stirling must advise all the places concerned by telegraph.

When it is necessary to work such Trains by Engines so fitted, and exchange Tablets by means of the Apparatus, the Engine Driver must inform the Station Master at the Station from which the Special Train starts, who must advise all Signalmen concerned by telegraph.

In such cases the Engine Driver must give, in addition to the usual Tablet Whistle, two Cock Crows in order to let the Signalman know to have his Apparatus in position for exchanging of Tablets.

In the event of an accumulation of Tablet pouches taking place at any one end of a Section they must be returned to the Signal Box or Station at the other end by the Guard of the first suitable Train, who must hand them out to the Signalman or Station Master in passing.

When anything goes wrong with or damage occurs to the apparatus on Engine, the Engine Driver must at once advise the Locomotive Foreman, who will make arrangements to have it put right without delay

In like manner, when a Ground Standard requires replacement or repair, the Signalman must at once wire the District Engineer, so that he may have the necessary work executed. Should any irregularity occur in connection with the working of the Apparatus, and the Signalman be unable to determine whether the fault is with the Ground Standard or the fixture on Engine, he must advise both the District Engineer and the Locomotive Foreman, so that the Apparatus may be tested.

The Signalman must see that the working parts of the Apparatus are kept oiled and in proper condition.

In sending Apparatus for repair, each separate piece must bear an address label shewing the name of forwarding Station or Signal Box.

CROSSING PLACES AND JUNCTIONS AND POSITION OF APPARATUS.

  Up Line. Down Line.
 Glencruitten Summit  In front of Signal Box  Opposite Signal Box.
 Connel Ferry (West)  About 20 yards West from Signal Box  Opposite Signal Box Stair.
 Connel Ferry (East)  ........................................  About 22 yards West from Signal Box.
 Taynuilt  About 24 yards East of East end of Up Platform  About 24 yards East of East end of Down Platform.
 Awe Crossing  At East end of Tablet Platform  Opposite Signal Box.
 Glenlochy Crossing  Opposite Signal Box  At West end of Tablet Platform.
 Tyndrum  About 11 yards East of East end of Up Platform  About 21 yards West of West end of Down Platform.
*Crianlarich Junction (West)  At East end of Tablet Platform  Opposite Signal Box.
*Crianlarich Junction (East)  Opposite Signal Box  At Buffer Stops of Down Exchange Siding.
 Crianlarich  About 25 yards West from West end of Up Platform  About 30 yards West from West end of Down Platform.
 Luib  About 30 yards East of East end of Up Platform  About 30 yards East of East end of Down Platform.
 Killin Junction (West)  About 40 yards East from Signal Box  
 Killin Junction (East)  About 20 yards East from Signal Box  About 20 yards East from Signal Box.
 Glenoglehead Crossing  In front of Signal Box  Opposite Signal Box.
 Balquhidder (West)  About 10 yards East from Signal Box  About 13 yards West from Signal Box.
 Balquhidder (East)  About 30 yards West from Signal Box  About 6 yards West from Signal Box.
 Strathyre  About 18 yards West from West end of Up Platform  About 12 yards West from West end of Down Platform.
 St. Bride's Crossing  In front of Signal Box  Opposite Signal Box.
 Callander (West)  In front of Signal Box  
*Callander and Oban Junction  Opposite Signal Box  At East end of Signal Box Stair.
 Drumvaich Crossing  At West end of Signal Box Stair  Opposite Signal Box.

* Special Arrangement.

Up Trains deliver the Tablet at Crianlarich Junction (West), and receive the Tablet at Crianlarich Junction (East).
Down Trains deliver the Tablet at Crianlarich Junction (East), and receive the Tablet at Crianlarich Junction (West).
At Callander and Oban Junction, Callander, Up Trains receive the Tablet, and Down Trains deliver the Tablet.