general instructions. - Limit Of Shunt

204 Special Instructions applicable at Particular Places.—Continued.
STAITH ES VIADUCT,
No train must be permitted to travel along the viaduct when the windgauge
affixed to the viaduct registers a force of 28 lbs. to the square foot
or more.
The wind-gauge is so connected electrically with a bell in the Staithes
signal box that should the wind pressure amount to 28 lbs. per square foot
the bell will ring continuously so long as that or any higher pressure exists.
In the event of a gale, the ganger or one of the platelayers must proceed
to the station sons to be ready in case the bell rings, to make an inspection
of the Viaduct on the bell ceasing ringing before a train is allowed to pass
on to the Viaduct. Should the Viaduct bell commence ringing, and there
is no permanent way man at the station, the Station Master will be held
responsible for sending for the nearest platelayer to make an examination
of the Viaduct.
Immediately the bell commences to ring, the following instructions must
be observed :—
(I) When the bell from the Viaduct rings in the Staithes box, the signalman
there must at once send the Obstruction danger signal to Grinkle, and
this must not be cancelled until the Viaduct is safe for trains to cross, except
as under :—
In the event of a mineral train arriving at Grinkle for Boulby Mines
during the time that the Obstruction danger signal is in force, the Station
Master there should communicate with the Station Master at Staithes. The
latter, after satisfying himself that the protection of the obstruction has
been carried out in accordance with Rule 217, may authorise the signalman
to withdraw the Obstruction danger signal. This will enable the signalman
at Grinkle to obtain the occupation key by giving the prescribed bell signal
and so allow the mineral train to have acce§s to Boulby Mines. The train
must, after working at Boulby, return direct to Grinkle, and upon replacing
the occupation key in the instrument at Grinkle and giving the prescribed
bell signal, Staithes must again give the Obstruction danger signal, and keep
the line blocked until the Viaduct is 'safe for trains to cross.
(2) If permission has not been given for a train to leave Hinderwell, the
signalman at Staithes must send the Blocking back inside home signal to
Hinderwell, and the latter station may then offer the Is fine clear signal for
any train which, if it is advisable it should run to Staithes, must be accepted
under the Section clear to Home Signal only signal, and the driver informed
of the circumstances.
(3) Should a train have been accepted by the Staithes signalman from
either direction, when the bell' commences to ring, the Obstruction danger
signal must at once be sent, all fixed signals placed at danger, and prompt
measures taken to stop the train. If such train has entered the section from
Grinkle, it must be detained at the outer home signal until the viaduct is
safe, or arrangements are made for working it back to Grinkle. If a train
has entered the section from Hinderwell it may be brought to the platform
after having come to a stand at the home signal, and the driver informed
of the circumstances. If it is desirable that a second train should reach
Staithes from the Hinderwell direction, it must be dealt with in accordance
with paragraph 2.