general instructions. - Limit Of Shunt

202 Special Cnstructicas appflcable at Particular Places.--Continued.
Shildon Tunnel.—Continued.
3.--Three Mineral trains (when none consist of more than 40 wagons) may
be allowed to pass through the tunnel coupled together, except between
the hours of 6-30 p.m. and 8-0 p.m., when not more than two must be
allowed to run through the tunnel coupled. The first engine that arrives at
the tunnel signals to be first to enter the tunnel, unless one line is required
to be clear before the other. Should a train be approaching at a good speed
when the signalman has just received intimation from Tunnel South that
the line is clear, he must allow that train to pass on before other trains that
may be standing on the other line, or in a siding. Any instructions the
signalman may receive from the Shildon Foreman with respect to passing
any mineral train through the tunnel before another must be attended -to.
SOUTH END OF TUNNEL.
• 4.—After an Up Passenger train has been accepted by the Signalman at
Tunnel South box the Is line clear signal for a Down train must not be
offered to Tunnel North, nor must the Is line clear signal for a Down
Passenger train be offered to Tunnel North box if an Up Freight train has
been accepted, until the Up train in either case has passed Tunnel South
box with tail lamp attached.
5.—The Signalman at Tunnel South must not accept an Is line clear signal
from Tunnel North for a passenger train until the signal has been forwarded
to, and accepted by, the Signalman at Shildon.Junction.
6.--Two engines with empty mineral trains may be allowed to enter the
Tunnel if coupled together.
GENERAL.
7.—The signalman at either end of the tunnel, if unable to satisfy himself
that the whole of the train has passed out of the tunnel, must keep it
blocked until he has ascertained that the line is clear, either by sending a
man through the tunnel to examine the lines, or by running a light engine
in both directions.
8.—All open and covered Fish Trucks, all Goods, Mineral and Ballast
Guards' Vans fitted with side duckets, and certain types of wagons and
tanks lettered "MUST NOT BE SENT THROUGH SHILDON TUNNEL
ON FREIGHT TRAINS," must not be attached to goods, mineral, or
ballast trains passing through the tunnel. ( T . 23274).
Goods and mineral guards must remove their right hand or " 6 ft." side
van lamp before entering the tunnel, and replace it after they have passed
through.
Coaching stock generally, including motor carriage trucks and special
cattle boxes, also Foreign Companies' horse boxes, carriage trucks, and special
cattle boxes, must not be attached to Goods, Mineral, or Ballast trains
passing through the Tunnel. N.E. horse boxes and ordinary carriage trucks
may, however, be allowed to work through the Tunnel on Goods trains.
(O. 5422. B. 39).