MOVING COAL - A Colliery Layout in 0 Gauge

Discussion in 'Layout Progress' started by PhilH, 8 April 2019.

  1. RGSrr

    RGSrr Member

    WOW PGH ! This looks superb. The 3/4 view with the buffer beam resplendent with bolt heads and rivets is the knock out !

    Thanks for sharing with us earthlings.
    John P
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  2. PhilH

    PhilH Western Thunderer

    Moving on to the two pairs of scratchbuild frames, the first job was to solder the inner and outer frames together

    Frames 003B.jpg

    ......using a blowlamp and 70W soldering iron

    Frames 004B.jpg

    The two sections were aligned with aluminium blocks machined into a "T" shape to fit both slots
    Next job will be adding all the bolts and rivets.
    With the addition of the etched chassis this build has now expanded to three locos, not sure yet which the third loco will be, but it will be Giesl fitted and possibly one of the Walkden "R"s - RESPITE, REPULSE or REVENGE

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  3. PhilH

    PhilH Western Thunderer

    After some deliberation the favoured prototype for the third Austerity is RESPITE, which is the one I saw and photographed most often in Lancashire and Cumbria.

    RESPITE HE 3696.jpg

    RESPITE at Astley Green
    RESPITE was ex works from Hunslet on 26/10/1950, arriving at Walkden Yard two days later. The name is a mystery. It was one of a batch of five obtained new from Hunslet by the NCB and delivered to Walkden Yard, the other four were named after Royal Navy battleships - RODNEY, RENOWN, REPULSE and REVENGE, but as far as I know there is no RN battleship or any other RN warship named RESPITE. It remained on the Walkden System until its closure, after the last train ran on 2/10/1970, working from either Walkden Yard or Astley Green loco sheds. It was fitted with an extended bunker c1959, which was removed and a Giesl ejector and underfeed stoker fitted in Walkden Workshops during November/December 1965. RESPITE was ex works in January 1966 in red livery lined yellow, replacing the previous black lined yellow. During this conversion it was unusually fitted with a small adjustable vent in the smokebox door, presumably a Walkden experiment copying the similar vent on locomotives fitted with the Hunslet gas producer system and Kylpor exhaust, but not repeated on any other of their Giesl fitted locos. Reproducing that on the model might be a challenge.

    Smokebox Door Vent.jpg
    RESPITE smokebox door vent (left) and standard Hunslet smokebox door vent (right)​

    After closure of the Walkden System RESPITE was stored at Walkden Yard until November 1972 when it made a 2 day trip by low loader up to the Ladysmith System at Whitehaven. Two years later in November 1974 it was damaged in a runaway, and then returned to Walkden Yard for repairs the same month. The repairs extended into 1975, but were completed by June when RESPITE was in steam at a works open day. Shortly after it was transferred to Bickershaw Colliery. The front part of the Giesl chimney had been patched up with a new section with square corners, the cast nameplates replaced with the name painted on flat steel plates and a new smokebox door provided without the adjustable vent. The last record I have of it working was in July 1978, on all my visits after that date it was out of use stored outside the loco shed.

    RESPITE and GWYNETH at Bickershaw 23,6.77 © PGH.jpg

    RESPITE and GWYNETH at Bickershaw in June 1977​

    RESPITE and GWYNETH were transferred to Resco Railways Ltd. in 1981 and parts from both used to construct the replica GWR 'Iron Duke' locomotive. The replica incorporated the boiler, cylinders and motion of GWYNETH, but only minor parts were used from RESPITE which remained largely intact. It was later sold for private preservation and is currently undergoing long term restoration at the Ribble Steam Railway in Preston.
    Last edited: 10 September 2019
  4. PhilH

    PhilH Western Thunderer

    then there were 3......

    Chassis x 3.jpg

    Did I really need 3 of these locos ? :confused:

    So far there's a total of 456 pins filed to represent bolts or rivets been used, and I haven't finished yet !
  5. adrian

    adrian Flying Squad

    Undoubtedly - Yes. :thumbs:
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  6. Jordan

    Jordan Mid-Western Thunderer

    Agreed. There is No Such Thing as "too many locos". Especially if they're a particular favourite, as well. :)
  7. PhilH

    PhilH Western Thunderer

    2. Chassis x 2.jpg

    Comparison of etched (top) and scratchbuild chassis. In retrospect I would have used the brass Slaters hornblocks on the scratchbuild frames had they been available when I started this project

    The triangular gussets between frames and buffer beams have been carried through from side to side and located in slots in the frame ends to ease assembly. In the etched chassis I've ignored the corner cut out for the 6" angle between frame and buffer beam and taken the gusset straight through along the back of the buffer beam, as the intended recipient for the final version of the etch didn't want to do the riveted angles and flanges in the corners. I've incorporated these in my test assembly by splitting the angles above and below the gusset. I don't think the lack of a triangular gap in the corner of the gussets will be too obvious in the finished loco.

    3. Chassis.jpg

    Moving back along the chassis between the frames, first is an angled plate representing the back of the cylinders, then the motion plate and a 3 part cross member just in front of the firebox. Dummy top slidebars and valve rods may be added later as a separate unit, and holes for fixing this have been provided in the cylinder and motion plates.

    The bolts on the buffer beam are as on the prototype, so don't line up with the narrower frames on the model.

    4. Chassis.JPG

    The riveted angles and flanges were added after the frames were assembled, so not really practical to use pins. Rivets or bolts were formed by half etching or a rivet press, and the parts fitted with an RSU. Some tidying up of solder joints is required, and the chassis will be grit blasted in due course.

    5. Chassis.JPG
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  8. Ironstone2306

    Ironstone2306 New Member

    Watching with interest PGH, inspiring stuff.

    Paul A.
  9. RGSrr

    RGSrr Member

    Magnificent, model engineering at its best
    RGS rr
  10. Andy Swan

    Andy Swan New Member

    john lewsey and AdeMoore like this.
  11. Andy Swan

    Andy Swan New Member

    Greatly enjoyed your project and wondered if you have drawings of the tippler or can tell me where to find such. How you built yours would help me! I am building a granite quarry (at Dalbeattie) in Scale 7. Well done, Andy
  12. PhilH

    PhilH Western Thunderer

    Hi Andy,
    A description of the building of the side tippler is here:-
    MOVING COAL - A Colliery Layout in 0 Gauge

    A description of the end tippler including a drawing of the tippler platform starts lower down on that same page and continues here:-
    MOVING COAL - A Colliery Layout in 0 Gauge

    Details of the end tippler were obtained by measuring the prototype.

    Last edited: 20 December 2019
    Isambarduk likes this.
  13. PhilH

    PhilH Western Thunderer

    Continuing with the Austerity build, there's been no progress on the actual models since the last report as I've been working on the drawing for the cab and footplate etch. This has now been completed and the first test sheet obtained from the etchers.​

    Cab and Footplate Etch B.jpg

    Footplate Rear.jpg

    Half etched "hollows" have been provided on the rear or underside of each item for all the bolt and rivet detail, giving the option of punching bolts and rivets with a rivet press or drilling out for pins, This is the underside of the footplate. The half etched rectangle is to locate the steps.

    Cab and Footplate Etch Rear.jpg

    Rear of cab side. I'm not sure how the sharp curve at the top will come out with the half etched strips, may need a rethink there. The line of rivets on each side of the lower cab opening were for a reinforcing angle inside, which was only provided on the last few Austerities built by Hunslet.

    The next job is to see how (and if !) this all works out.

    Coupling Rods B.jpg

    Coupling rods have been laser cut from 2mm thick mild steel, they now just require machining on their front and rear faces.

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  14. PhilH

    PhilH Western Thunderer

    Footplate 001B.jpg

    One footplate fitted to the frames​

    Footplate 002B.jpg

    Filing pin heads to shape to represent bolts or rivets can be time consuming but it does make the assembly of items like these steps with respective holes in the different parts a doddle.

    Footplate 003B.jpg

    Firebox washout plugs or mudhole doors were provided in the openings on each side of the frames. These were made by turning a brass rod to the diameter of the centre, making a saw cut across the diameter and soldering a brass strip across, which was then filed into shape. The end was faced off in the lathe and drilled for the centre fixing bolt (a pin with its head filed to shape) and the part then cut off the end of the rod.

    Footplate 004B.jpg

    Rather than provide the angle between the top of the rear buffer beam and the underside of the bunker I extended the footplate to form the top (horizontal) part of the angle and added a strip to the top of the bufferbeam to represent the vertical part. This latter part was drilled with holes for the rivets and bolts with the intention of drilling through the buffer beam once the strip was soldered in position. This proved to be rather a crack-brained idea as it ignored the items already fixed to the rear of the bufferbeam like frames and footplate valance, plus how the heck would I get to the rear of the buffer beam to solder and trim the pins with the footplate in position. Breaking half a dozen 0.45mm dia drills while attempting this somewhat reinforced that view. So the original strip was removed and replaced with a new strip with the rivets and bolts already fixed to it. Despite there only being 0.4mm (the thickness of the strip) length of pin fixed in the strip surprisingly I didn't lose any of the bolts or rivets in this process. A more sensible alternative would have been to form the rivets on the strip with a rivet press, although there is a small bolt head at each end of the row. Just in case you're wondering there are 3 different sizes of rivet head in the row. The black areas round some of the rivets are traces of solder which has leaked out from the rear. Cleaning with Cif seems to turn this solder black.

  15. PhilH

    PhilH Western Thunderer

    Cab 001B.jpg

    The part assembled cab.​

    The brackets on the cab front will retain the back of the 3D printed tank/boiler unit, which then just requires a bolt between the smokebox and the footplate to retain the unit in position. On the prototype these brackets would be welded to the tank and bolted to the cab front. The cab floor was elevated slightly with a slip of paper underneath when the sides and front were soldered in position to ensure that the sides and front fit tightly to the footplate when the cab floor is bolted to the footplate.

    Cab 003B.jpg

    Some of the Walkden Austerities were fitted with cab doors, and these were stepped back from the cab sides to clear the vertical handrails with steel angles attached inside the cab on each side of the doorway. Only the last 4 locos delivered new by Hunslet to Walkden Yard had these angles fitted by rivets, this includes the 2 prototype locos represented here. The rivets are quite small and were formed from short lengths of 0.4mm dia wire soldered in pre-drilled holes, trimmed to length and then rounded off with steel wool. The bunker top edge will be provided with half round beading.

    Cab 004B.jpg

    The bars over the rear windows are 1/2" dia in the prototype, near enough 0.3mm to scale. I thought these would be a bit delicate so used 0.4mm dia. wire. However this does look a bit heavy, but might be a bit less noticeable when they're painted black. Next time I'll do them in 0.3mm dia. The small door between the windows was for access to the top lamp iron, which was fixed to the bottom right hand corner of the door. Some locos had the lamp iron in place, others didn't - as the prototype represented here.

    Cab 005B.jpg

    The bunker front inside the cab. This should have been fitted before the cab rear as I subsequently found out. Its since been fitted in place but I had to separate the top from the vertical part to get it in.

  16. LarryG

    LarryG Western Thunderer

    This loco has been a long slow haul what with the 3D components, artwork to prepare and then conversion to working CAD's for etching. It's getting somewhere fast now though. :thumbs:
  17. john lewsey

    john lewsey Western Thunderer

    Nice work Phil a working railway .when I was about fifteen I used to go to Croydon B Power station they had saddle tanks .i managed to get an afternoon on the footplate absolutely fascinating
  18. P A D

    P A D Western Thunderer

    Hi Phil,
    Just read through the thread from start to finish. Absolutely top class modeling across all disciplines.
  19. PhilH

    PhilH Western Thunderer

    John and Peter thanks for your comments, much appreciated.

    WITCH 001B.jpg
    Larry, yes its nice to see it coming together at last but there is a lot more to do with regard to detail parts - sanding gear, injectors, cab fittings, etc, etc, plus of course one or two additional locos,

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