Home
Home
News
News
History
History
Route
Route
Locos
Locos
Our Rolling Stock
Rolling Stock
Progress
Progress
Working Parties
Working Parties
For Sale
For Sale
membership
Membership
 

     The Welding Institute Railway and its lifting and move to Kempton   

   

  TWI (The Welding Institute ) is located near Cambridge.  The Chief Executive of TWI at the time was Bevan Braithwaite, a life-long railway enthusiast. He thought that it would be a fun to have a railway between the Main Building and the Canteen, and so he designed and constructed a 2ft gauge people-mover/tramway in 2003 to cover the 300 metres between the buildings. With loops at both ends, sidings and a wandering route around the car parks, it gave ca. 600 metres of track in all, including four turnouts; Fig. 1 shows the plan of the railway.  After Bevan Braithwaite retired, TWI offered the railway to a society so more people could enjoy it.  The MWBRS wanted rail and were prepared to lift it and after some negotiation, a deal was struck.

 

Fig 1.  Plan of TWI Railway “As Planned”, essentially “As Built”; The Letters are to identify the locations of the pictures.

 

The rail was far from new when the railway was built but ex Welshpool & Llanfair Light Railway, as evidenced by the “Dowlais Steel 1901/2” markings on the web of the rail, see Pic.1.

 

 

 

     Pic.1 :  Dowlais Steel 1902”, which would ‘match’ With the 

                         laying of the Welshpool and Llanfair Light Railway.

 

It was originally 50lb/yd rail, but although the head is a bit worn the rail is generally in fairly good condition and more than enough ‘life’ left in it for the Hampton to Kempton Railway, see Pic.2.

     Pic.2 :  The rail head may be worn, but the ‘web’  and ’foot’ look

                      in good nick

 

 

 

The turnouts at B, D and K (these letters refer to points on the plan Fig.1) which might even been a heavier spec. were said to be ex. National Coal Board and are also suitable to us, see Pic.B1.

               Pic.B1 : This Canteen Loop point is also very substantial

 

The TWI Railway had two unusual features:  a 35 m long 5-span viaduct on the loop at one end, every strongly built and protected by hot-dip galvanising; this viaduct was included in the deal, and indeed TWI wanted it removed first. See Pic.V1.  Dismantling the viaduct was quite a difficult task   

Pic.V1 : The Viaduct curves round on the loop by the main

                                  TWI Building.

The second oddity was that the track was buried up to rail-top height with earth and turf so that the groundsmen could ‘mow’ over the top, hence it was more tramway-like, although the rails were of a standard profile. This resulted in several problems in recovering the rail – first you had to find it – often it was all-but invisible, see Pics.F1  and D1, the second problem was that there was obviously a lot of digging to do, but even worse, in the dry weather the ground set like concrete and eventually we had to call in mechanised assistance, see below. 

          Pic.F1 : The track (long-welded rail as it transpired)

                           across the open field is barely visible

       Pic.D1 :  The turnout at the start of the Canteen loop is well

                       buried. On the far right you can just see work starting

                       on Train Shed turnouts.

.A third problem was that the track fixings were often rusted solid (although the rail itself was fine) and lastly, of course, 99% of the sleepers were rotted beyond re-use.  The few sleepers that were not, were in the ‘dry’ area under the trees of the Canteen loop; see Pics A1, C1, C2 and B2.

   

Pic A1 : The Train Shed is in a branch off the Canteen loop.  This Shed was not part of the’deal’

 

  

Pic C1 : The Canteen loop curves under the trees; despite the rain the ground is fairly dry.

  Pic C2 : The rail by the

     Canteen Platform is just

       visible.

Pic B2 : It was tough digging up the Train Shed turnouts on the Canteen loop.

The railway had been constructed 2003 with help from a local contracting/transportation firm Welch’s.  Some of the men who helped in the transport of the materials to Kempton, including loading and unloading the lorries, had worked on the construction of the railway. The system was opened in 2004, see Pic.V2. 

                 Pic V2 :  Opened in 2004! 

 

Of course we would be working on what was in effect an “industrial” site and so we, that is the Members of the Metropolitan Water Board Railway Society, who were going to be working on-site dismantling the viaduct and lifting the track, had to comply with TWI site health & Safety requirements and present to them our Method Statement, Man-Handing Training and Completed Risk Assessments.   While they seemed onerous at the time, they were useful exercises and a good discipline for our construction phase as well. You will note that in the several Pictures that we are wearing hard-hats when under the Viaduct and always Toe-Tector boots and, usually, Gloves.

 The first task, after we had “found” most of the track, was to dismantle the rail and other ancillary parts of the viaduct,V, and to uncover the foundations so that the viaduct itself could be lifted by Welch’s at a later date: 

Pic V3 : Dismantling the rail on the viaduct,

        showing also how the rails were moved.

Pic V4: Getting at the “underside” of the

              viaduct needed a ladder.

Pic V5 : One of the toughest jobs was

           digging out the viaduct foundations.

However while were in the middle of this an even more urgent task arose as TWI were about to build a test-rig/building which would have buried the track near point G on the plan.  Near this point, already partially covering the track, was a pile of earth and rubble see Pic.G1 and we had to do a ‘rescue’ recovery of this short length of track, which we quickly did, but then we could find no joints in the rail beyond this, across the open field, F, almost as far as the road crossing by point D.  We had chanced upon the length of rail which had been “long-welded” during trials of a “Thermite Process”; seems logical for a railway at The Welding Institute! The TWI Railway was also the test-bed for the development of 'Long-Range Ultrasonic Testing'. See, Pic.F5. 

 

     

               Pic G1 : This pile of rubble and earth partly covered the track,

                   which was also in the way of a proposed TWI experimental

                   rig at "G".

 

    

     Pic.F5. Long-welded rail across the open field ‘F’.

Now we could set-to on exposing the rail and in particular the fish-plated joints, see Pics.3 and 4. and the turnouts.  The later were of two types: two were welded as complete units on cross-bars (like giant Hornby Doublo), see Pic.D1 much more difficult to excavate, but of course far easier to reuse, and standard turnouts on wooden sleepers (rotten of course!), a bit easier to recover, see Pic.B1, above, but far more problem to re-build/re-use. 

    Pic 3 : The first task was to expose the nuts & bolts of

                  each rail length…...

 

   Pic 4 : ….which of course meant a lot of digging.  

 

 

 

 

     Pic D2 : The complete turnout of the entrance to the Canteen loop

                           is in one ‘welded’ piece – mechanical help is essential!

                           Note this is the same turnout "buried" in Pic.D1 above.

rack lifting then continue apace and rail was transported by hand and by hand-trolleys, brought from  Kempton to TWI for that purpose,  to be  stacked by the road-side, near points K, H and D, for subsequent recovery. See Pics.  V3 (above,) V6 and J1. 

 

 

 

Pic V6 : Crowbars in use to shift the rail by the viaduct

 

   Pic J1 : A pair of lifted rails on a trolley on their way to

                    the rail stack.

Moving the rails on trolleys was not trouble-free as the trolleys tended to de-rail, unless heavily loaded.  The solution was to laboriously clear the rail-head and flange-way all the way to the rail-stacks, see Pics.M1 and H1. .  This tendency to de-rail with grass/soil up to the rail-head probably contributed to the problems of the original operation.

Pic M1 : Clearing the flange way near the viaduct.

 

  Pic.H1. Clearing the flange way at the far end of the Car Park.. 

        

Once the foundations of the viaduct had been dug-out and all rail, footplates, hand-rails similar items had been removed Welch’s were called to disassemble and remove the viaduct, see Pic.V7. and V8. And soon the viaduct is loaded on to Welch’s Lorry and is transported to Kempton and is safety stored under the A316, ready for possible re-use, see Pic.7.

 

  Pic V7 : Welch’s crane making short work of

                      dismantling the viaduct.

Pic V8 : Robert poses with a smile, as the viaduct behind him is no more, and the track to the left has also been lifted.

Pic 7 : Parts of the viaduct are stacked

             underneath the A316 at Kempton,

              ready for re-use.  

Meanwhile the work of recovering the rail was proving very hard, particularly when the ground dried-out in the summer and made a good imitation of concrete.  To speed things up the TWI offered the use of their mechanical excavator to help clear soil and turf from the track and then lift the rail.  In particular this was useful across the open field F See Pic F2., where the long-welded rail was situated, and also for the lifting of the welded unit turnouts, see Pic.D1, above.  Once the rail had been lifted, see Pic.F3, the long-welded sections were chopped-up into 30ft lengths with an oxyacetylene torch, and then stacked with the standard-length rail 

           Pic F2 :  The TWI mechanised digger attacks the hard ground

                   on the open field where the log-welded rail was buried…... 

        Pic F3 : ….and the rail is extracted and cut-up into 30ft

                       lengths by TWI with their oxyacetylene torch.

 And finally the rail lifting was finished and stacked ready for Welch’s to load-up, see Pics,J2, C3 and F4, collect and deliver to Kempton, and it is now stacked and ready for reuse  see Pic.5 – and by the time you are reading this it may have already started to be re-laid on the Hanworth Loop, see Pic.6.  

        Pic J2 : The bulk of the rail is loaded on to the right-hand lorry,

            while  on the left-hand lorry, with the built-in Hiab. crane carries

                     the points and handrails from the viaduct.

 

          Pic C3 : Welch’s Hiab. Lorry loads rail from the

                       Canteen loop.  

    

    Pic F4 :  Welch’s Hiab Lorry is loaded with turnouts and viaduct

   

 

 Pic 5 :  The rail is stacked neatly at Kempton ready for re-use.

 

 

<<<-----    Pic 6 : One of the ‘ready-made’ turnouts, ‘K’

                           from the viaduct loop, is lowered into place on

                                 the Hanworth Loop.

Hard work it certainly was, but there was much satisfaction in retrieving a railway, rather than it going for scrap, and there lighter moments – many in fact, see Pics.J3, B3 and 8.  

Pic J3 : Peter and John take a lunch-time break

 on the trailer.

Pic B3 : Jim laying-down-on-the-job as he un-bolts the fish-plates of the Train Shed point.

Pic 8 : One of the biggest MWBRS gangs

              takes a break for lunch in the sun.

 

We started work at TWI in end March 2010 and the task was completed in September 2010.

Out thanks to TWI for their assistance and to Welch’s for their expertise.

Many dozens, perhaps even hundreds of pictures were taken of this exercise. And although they were not taken for that purpose would

form an archive of knowledge for anybody writing a ‘complete’ history of the short-lived TWI Railway.  Anybody wishing to make use

of this archive has only to join the MWBRS  (see Membership Page of this Website) will be free to dip into this extensive

pictorial record.

 

Douglas

 

T