Lionel 151 SEMAPHORE - Page 4

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Figure 4—Connections for a No. 153 Block Signal. Diagram Shows How the Accessory
May Be Connected to a Pair of Variable Voltage Terminals Adjusted to Correct Voltage.
CONNECTIONS FOR TWO-TRAIN OPERATION
By installing an insulated block and making the connections shown in
Figure 5, the No. 153C Contactor can be used to control two trains running
simultaneously on the same track and at the same time to operate a Block
Signal or a Semaphore which will be synchronized with the movement of trains.
The insulated block is constructed by taking out the metal pins from the
middle rail of the end sections of the block and replacing them by insulating
fibre pins. Four pins are supplied with each No. 153C Block Signal and No.
151 Semaphore outfit, two for “O” Gauge and two for “0-27” Gauge track.
‘ Choose the two which fit your rails. Two Lockons are required for this
installation: one, marked “A,” in the diagram to furnish power to the insulated
section, and the other, neked “B,” to make connection with the rest of the
track in your layout. Carefully follow the directions as to the minimum
number of track sections required. The insulated section should be at least
3 sections long. (Either straight or curved sections may be used.) The larger
the layout, the more effective the operation and the less possibility of collisions.
As shown in the diagrams the track and the insulated block operate on
separate circuits. The insulated block voltage should be 2 to 3 volts higher
,_ than the track voltage so that the train which may be waiting in the insulated
“block can start rapidly.
It is important that the two trains operate on approximately the same
voltage, or the faster train will tend to catch up with the slower train and
collide with it before reaching the insulated block. Some of the variation in
the speeds of the two locomotives may » be por pensated | for by loading down
the speedier train in order to slow it down. ;
Note: When operating two train layouts don’t forget to dissiniacee the
reversing E-Unit in the locomotives so that the train -will resume forward >
motion after being stopped. |
To operate two trains with a No. 151) Boucle connections are dinds
as indicated in Figure 6. The sequence of train operation will be the same
as before and a clear track will be indicated by the Somes of the Semaphore
| Arm and a flashing of the green Semaphore light. 3
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