A Few More Stools

Thursday 28th June

Only three of us at Broadway today. I had to miss our normal Tuesday, although there was a small gang here who did stuff other than stools!
So here is a brief summary from Tuesday.
The connection of signal 7 (platform 1 starter wooden post) to the box has now been tidied up so that the wire is supported at 20ft intervals - 7 rollers have been attached to the platform wall to support the wire :

There is a tricky area at the end of  the platform ramp where the wire has to divert over the top of the rods to "squeeze" through. We should have left the two slabs out that we removed to get the rodding through! It works well with no obvious rubbing points.

Neil C has marshalled a pile of cable troughs on the edge of platform 2 - these will be collected  by the diesel railcar for moving to Winchcombe for installing a new cable from the siding renewal work up towards the signal box. The existing cable is buried under the track and will probably get damaged. So better safe than sorry!

So back to today and the dear old rodding.  We dug in a further three stools and concreted them in plus the other 5 that were prepared the previous week.

With the four runs of rodding now installed over all the concreted stools it looks the business:

There are now 7 more stools to put in before we reach the point where two of the compensators will go. We hope to get Steve and his mini digger in to prepare the hole for a substantial concrete block. Once we have laid out the positions we can determine how much to cut off the end of a sleeper to get it all in.

Finished off with a shot of Dinmore Manor appearing out of the shadows

Note in this picture that we have upgraded to an electric mixer after all the problems we had with the petrol one!

Curly

Advancing North

Tuesday 19th June 2018

Following the interest shown in Block Bells and the expectancy of sonorous tones expected from Broadway signal box in due course, I can announce that we are going to install a "Church Bell"  - and here it is:

I am reliably informed that the six types of block bell normally used are:

Church, Ordinary Round, Flat Round, Cow, Sheep, Gong.
I'm sure Church will sound best!

Back to stool planting. Firstly we unloaded another 20 lengths of rodding from our diminishing store at Winchcombe. These are now residing in the 6ft waiting to be put in once the concrete has set on the next batch of stools:

John P and Carl S started by dismantling the shuttering from last week's run of concreting and filling in the ballast round them:

George busied himself assembling some more stool/roller assemblies on the makeshift cabinet bench while Foremarke Hall rolled by

Still quite a few more needed to get us to the end of the platform - but sufficient to keep us going today:

A total of 28 stools have now been installed which takes us almost up to the footbridge. Probably another half dozen to get us to the point where the first pair of compensators need to be for the first set of points and fpl:

Just 5 of these left for concreting next week.

Couldn't resist climbing up the bracket signal to get an overhead view of Foremarke Hall on its last Broadway run round of the day:

Curly

Connected and Disconnected

Monday, 11th June

Firstly, apologies to my observant blog readers. I got carried away with the detector connections last week to the Wooden post starter signal - this was of course wrong and should have featured the new bracket signal (yet to be installed approx a panel length south of the points). Will explain this in more detail when we put the detector in.

So, to today. Four of us at Broadway. No trains running so we are going to temporarily disconnect the ground frame rods at the south points and connect up to the rodding runs from the signal box. We availed ourselves of the P Way trolley to save a bit of carrying to and fro:

With the ground frame disconnected we could now line out the positions for the point and fpl cranks on the steel plates that were installed last week. Firstly four pilot holes by Malcolm:

Followed by John P on the magnetic drill:

Note that the orange connecting link (here connecting to the point stretcher) has an insulated joint to keep the integrity of the track circuit) :

We had the generator with us today so that we could use the angle grinder for cutting the several short lengths required for connection. And of course two more holes needed in each end - achieved using the "high energy input" hole punch.

And here we are all connected up. George was sent off to the signal box to pull the levers and after a bit of adjustment all works well:

We left ourselves a bit tight for time at the end of the day but managed to get the ground frame re-connected ready for Tuesday's services.

So.. .. when the time comes it will be a relatively simple task to changeover to signal box operation. Just a bit of tidying up and tamping required round the concrete blocks.

Curly

A Change of Direction

Tuesday 5th June

We have decided to pause our efforts going South with the rodding - we can't do anything meaningful with with the setting of the cranks on the blocks that we installed last week until the connections from the ground frame are temporarily disconnected. So the grand plan is to do this next Monday (a non-running day) . We will then re-connect the ground frame (having checked that everything works from the box) leaving everything ready for connection to the signal box at a later date.

In answer to one of the questions to the blog last week regarding the positioning of the rollers that the rodding moves on. After several pulls on the levers it appears that rollers (having random positions in their slots initially) all adopt the same position along the run - so a pure rolling action of the roller stub axles in their slots is achieved (ie much reduced friction).
However, the Eagle eyed  observer will note that some rollers do not adopt this regimented position - this is because some of the lengths of rodding are not perfectly flat which means that some rollers do not make contact and do not move!
Similarly, some of the rodding lengths are not perfectly straight laterally which may result in contract with the sides of the rollers - so a certain amount of friction is unavoidable.

Anyway, enough of this roller talk and back to today's activity.
We are now marching northwards with the installation of stools. These have now morphed into the four wheel variety :

Quite a lot of time spent bolting the rollers onto the bases. Each set has 10 bolts. The bolts we happen to be using are a bit longer than they need to be so the winding up of nyloc nuts is a bit labour intensive- but very secure.

Here's Peter B our American volunteer from Hawaii (the current volcanic activity is not on his island) - over here for the summer, having a good workout with the spanners :

Our logistics for concreting today left a bit to be desired. We manhandled many barrow loads of aggregate from the back of the pickup by the station to a pile at the end of platform 2. A barrow crossing needs  a Barrowcrossing:

Concrete then mixed with a very temperamental petrol mixer
which somewhat hampered our progress today:

Then barrowed up the platform and shovelled into a bucket to be handed down to Jim P below

We managed to complete six stools today with a further three ready for concrete - so a modest start.

We were treated to KEII twice today with  well populated carriages:

Curly

Still not Finished

Tuesday 29th May

A smaller group of us at Broadway today to continue with the point rodding installation up to the southern points.
We finished setting in the last four stools up to the point and fpl connections. It has been slow going because the alignment to meet up with the angle cranks which will be set on the concrete blocks at the points has proved a little problematical and has involved the moving (by large crowbar) of the blocks holding the compensators that we buried last week! Anyway, after much grunting and groaning we have got the rodding runs looking respectable. Here's Carl S fixing the steel plate to the first set of blocks - the level of these will need adjusting once the angle cranks are fitted:

And here is the second set of blocks with steel plate fitted at the fpl connection.  Note that we can do all this without disturbing the existing connections from the ground frame. It should then be a relatively simple operation to eventually change over to signal box operation:

I don't think you want to see any more pictures of rodding today, but just to finish off here is a close up of a roller assembly on which the rodding sits. This enables the stub shafts to roll rather than turn therefore minimising friction:

A signal wire has now been connected from the signal box to the wooden Post (platform 1 starter - lever 7) to check the clearance with the platform 2 ramp brickwork. It's all a bit tight here and may need a bit of brick "pruning" - anyway it works OK and we tried it out on Oliver Cromwell!

And the wire being diverted under the tracks by the pulley at the base of the bracket signal:

We were treated to some excellent views of both Oliver Cromwell and P & O coming and going today.

Cromwell running round:

And P & O running round

A fitting wind down from last weekend's Gala!

Curly

Not Quite There Yet

Tuesday 22nd May

We were still slaving away at Broadway today to complete the installation of the point rodding up to the south pointwork. But I have to report that we have not got there yet.
We have been having a bit of a problem with our lengths of point rodding some of which are not particularly straight - so there has been a bit of juggling with rodding selection and stool positioning to get the layout looking presentable and functioning properly. On top of which we had to get the two sets of  compensators re-aligned - a bit of a jigsaw.
Anyway, at last all is OK. Here are a few pictures of the day's work starting with Malcolm on the end of a crowbar - this is quite an effective way of "wriggling" a buried concrete stool to make a small adjustment :

And then check that the distance is OK:

While Jim P and Len W connect the rodding to the compensators. The blocks on which they have been mounted have had the ballast shovelled back in so the system should be nice and stable. NB the wooden height gauge which is used to keep a constant height relative to the track.

And here are the compensators all connected up and looking a lot tidier :

Then continuing on with the stool burying up towards the temporary ground frame. We shall carry on past this up to the point where the existing rods cross to the track. We  left ourselves with four more stools for next week and the burying of four more concrete blocks to take steel plates and angle cranks - these to be connected when the ground frame is eventually removed.

We were "double-headed" today. Another group of two stalwarts from the S & T Oiling Gang turned up for some greasing and oiling. They are responsible for lubricating all the moving parts of signals, pulleys, cranks, etc on the railway- now becoming a major task to keep everything in good working order :

You will also see in the above picture one of the holes for the concrete blocks.


A grease gun poised to inject grease into an angle crank leading to the fpl.

And as if we hadn't had enough excitement for one day we were alerted to the approach of the Gala Visitor 5197 pulling into Broadway Station. It certainly has a unique whistle and a certain presence.
It probably startled people standing close to it on the platform when it's safety valves lifted - guite a noisy blast!

I think it will be a star at the gala.

Curly

Gotherington Auto battery alarm system

Sorry, no pics this time . I think you have perhaps seen enough of us peering into circuit boards and things in-animate.

Just to say that Kevern and I met up on a non running day to start to install another of Keverns magic boxes. It has always been a system weakness that mains failure could go un-noticed until the signalman arrives for duty to find parts of the box system are not working. Then its too late.
This one monitors the various battery voltages at Gotherington so it directly checks that not only are the batteries ok but also that the 240v mains must be on and all the chargers are working correctly.

If the cell voltage on any battery starts to fall outside a set range it will then start a flashing beacon that I mounted under the block-shelf for passing crews to notice and report that there is a fault.

Its pretty bright so perhaps we ought to warn the deer on the hill opposite that they might need sunglasses at night!

Once the battery voltages  have settled down the system will be fully commissioned.

Mike S