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Caley Jim

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Posts posted by Caley Jim

  1. 40 minutes ago, airnimal said:

    Jim, yes it does have the heavy framing on the end door but not the cupboard doors on the side.   I need technical advice on this one. Although I have the Caledonian wagon book by Mike William's I don't quite know how the end door hoops work. I can see on the drawings that the hoops are welded to the ironwork on the door but where does the hoop go when the door is raised ?  And what does the door pivot on and what is on the door inside ?  I don't think I have ever seen a close up photograph of this feature or read about the way this works. 

    The vertical washer plate on the outside , the hoop and the corresponding washer plate on the inside are all one piece, presumably forged from round bar.  The heavy transverse top beam is attached to the wagon sides, reinforced by a washer plate which extend right across and wraps round the corners.  This has two metal plates on top, corresponding to the position of the hoops.  The door swings on these, via the hoops.  The washer plate across the bottom framing extends out on either side as round 'pegs' and the door is held shut by two oval loops attached to the sides.  The pegs have a hole in them into which a pin, held on a chain, is placed to keep it shut by stopping the loops coming off the pegs. 

     

    The left hand half of the two end elevations on p103 of Mike's book show the inside (top drawing) and outside (bottom drawing) arrangements. 

     

    The RTR wagon you refer to had the hoop disappearing into the top of the cross beam!  How anyone thought that would work is a mystery to me!

     

    HTH

     

    Jim

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  2. Looking forward to seeing this one develop.  Does it have the heavy-framed end door, using the top cross member as the hinge, and cupboard doors, typical of central Scottish mineral wagons? 

     

    I've tried to upload a photo of an earlier 'Arniston' wagon which is a dumb-buffered outside framed 'NB-style' 'bogie', but there seems to be a problem uploading images at the moment.  ☹️

     

    Jim

     

     

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  3. I would suggest that finishing it off would be a fitting addition to the rolling stock, but I'm wondering if that collection of castings includes other things?  There would appear to be parts for a coach bogie there.  I'm afraid I can't help with identification, others with more knowledge may be able to help.

     

    Jim

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  4. 2 hours ago, Compound2632 said:

     Coal wasn't (isn't?) just coal - there was a great variety, with coal not just from different coalfields but from different seams at the same colliery being best suited for different purposes. 

    A classic example of this was the Royal Navy's preference for Welsh anthracite. During WWI the navy was stationed in Scapa Flow resulting in a constant procession of coal trains going north on the WCML. This not only put a severe strain on the Highland Railway, but was a contributing factor in the Quintinshill disaster as one of these trains was occupying the down loop meaning the local train had to be put 'over the road' to allow the late running overnight express to pass. 

     

    Jim 

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  5. The CR mineral wagons ranged from early 6T 'bogies' through 7, 8, &10T to 16T latterly, culminating in the 30T steel bogie wagons.  The 4 wheelers all had end and (cupboard) side doors and many had bottom doors.  Their open wagons were generally 4 planks with fixed ends and side (drop) doors, as well as drop-side wagons of similar design.  The 30T bogie wagons were not a success as the company could not persuade the industrial customers, for whose traffic they were intended, to upgrade their unloading facilities to cope with them.  They ended up as either loco coal wagons, sleeper wagons or, with the side doors removed, merchandise wagons used in express freight traffic.

     

    Jim

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  6. 1 hour ago, Dungrange said:

    .....  Was human waste transported in the same way?  I must admit that I never knew they used human waste as a fertiliser at that time.

    Perhaps not human waste as such, but Glasgow Corporation had 'sewage disposal wagons', lettered as such, which took the sludge from the sewage works out to farms in Ayrshire and Lanarkshire. Also the Glasgow Police Commissioners (who were responsible for cleaning the streets at the time) had manure wagons for similarly disposing of the horse manure they collected.Manurewagons.jpg.26560139eefb75af386ba8a0da9e69ff.jpg

    The four on the right are manure wagons.

     

    Jim

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  7. 10 hours ago, Compound2632 said:

     

    Tuesday 26th or Thursday 28th? Either way, 40°F looks coat-wearingly nippy to me. (Taking the Holyhead readings.)

    40F is around 4.5C. That's T-shirt and shorts weather! We had -16C one night last winter and back around 2010 it was going down to -23C overnight and never went above 0 for days! 

     

    Jim 

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  8. 4 hours ago, ChrisN said:

    .... My Coal Merchant has a 8 ton wagon, but when I worked out the wagon volume and the density of the coal it only carried 7 tons.

    This was common. As I've posted before the 'Load x tons' marking only indicated the maximum load the bearings should be subjected to (taking into account the weight of the wagon), not the physical capacity. Coal was lighter than other minerals such as iron ore and stone. 

    Jim 

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  9. 17 hours ago, CF MRC said:

    But of course David! A sharp tap with a Mallet is sometimes useful to overcome stiction.  
     

    Tim

    Engineering is 90% knowing which hammer to use and 10% knowing where to hit it. Tim will have had plenty practice removing impacted teeth with a bone chisel and mallet! 😃

    Jim 

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