It was a question of how many uses can you find for point rodding!
As reported previously we had cut up two of our 18ft lengths into 7" lengths for mounting the signal wire rollers along the platforms at Broadway - that was enough for one platform - we now need another similar quantity. So this kept us warm with the angle grinder and file. John P in action cutting :
Oh for the new workshop!
The next use for bits of rodding is for clamps to mount a warning sign to a post at the crossing at the rear of C & W at Winchcombe. This post had suffered a recent "dislodging" so the opportunity has been taken to give the sign a face-lift with fresh paint - the white gloss needed a steady hand
And here are the rodding clamps at the rear
Then off outside to the post
I did manage to put a coat of silver paint on the new "shoe box" lineside cabinet opposite the signal box. Not the best of days to be painting outside but it appears to be OK
And now for the technical bit that I would like to share with you. I did say in the last blog that I would get a picture of a point rodding compensator - so here goes (those of you with a nervous technical disposition look away now)
This first picture shows the compensator as it is set initially with its two arms at right angles to the rodding - ideally on an average temperature day
The compensator is positioned at the centre of the rodding run between the signal box and point. This means that on a hot day both lengths of the rodding will expand equally pushing the arms of the compensator inwards as shown here
The two arms of the compensator cannot move independently from each other so the point can still be operated in the normal manner.
Conversely, on a cold day contraction of the rodding gives us the following :
This cunning system prevents unwanted point movement with extreme changes of temperature.
It is the same problem experienced with long runs of signal wire (see a previous blog)
Hope it gets a bit warmer for our last working day (next Tuesday) before Christmas