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Loading Gauges (from Ratio Kits)


Silver Sidelines

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I needed a self contained task so this week I have been making up a batch of Ratio Loading Gauges of the GWR and GWR/LMS varieties:

 

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The kits are relatively straightforward and I fixed them together using Butanone solvent. The kits do however contain two different diameters of plastic 'rod' with the suggestion that the smaller rod can be used to make up the rigging for the operating mechanism.

 

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However it seems to me that if the rigging is to be fitted then there is a pulley missing from the kits.

 

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It didn't take much thought to realise that a suitable pulley could be cut from the spare plastic sprue (actually by my wife who fished the bits of surplus plastic out of the kitchen waste bin).

 

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The view above compares gauges with and without the rigging. Below the finished gauge in position.

 

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There are some useful drawings and pictures available in my favourite GWR reference book (A pictorial record of Great Western Architecture, A Vaughan (1977), Oxford Publishing Company, pp373-375). The pictures appear to show the rigging made from white rope, with the separate lengths from the opposite sides of the loading gauge joined together prior to passing over the corner pulley.

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Lovely work. Is the one on the right in the first picture the GWR one? The profile of the actual gauge looks different to the one illustrated on the back of the 410 pack I have, which has two convex struts coming out the ends.

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Thanks Ben

 

I do like these difficult questions.

.. Is the one on the right in the first picture the GWR one? The profile of the actual gauge looks different to the one illustrated on the back of the 410 pack I have, which has two convex struts coming out the ends.

Comparing my models with the drawings in Vaughan's book would indicate that the stepped profile on the right is accurate for the GWR/LMSR joint lines type gauge - Ratio Model 411.   I bought three kits all off eBay and no longer have the original packaging.   I cannot find details for Ratio Modle 410 - does it still exist?

 

I have positioned my GWR/LMSR loading gauge (R411) in my ex GWR branch terminus.  The other two perfectly hemispherical gauges are positioned in yards that I deemed to be ex LNWR lines - were these actually R410?.  I cannot properly answer your question and wonder whether Ratio made changes to their kits. 

 

Hope this helps.

 

Regards

 

Ray

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Not sure if this is what you are refering to, but the ends of the GWR profile bar are hinged (hence the pulley system) so the profile will be different according to whether the ends are in the up or down position:

 

GWRLoadingGaugeWBeard.jpg

[from A History of GWR Goods Wagons A.Beard & Others]

 

Not sure of the reason for this!

 

I'm searching for more scale drawings of the GWR loading gauge, so your reference to Adrian Vaughan's book was very useful.

Thanks.

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Thanks for loading the drawing - very similar to the drawig in Vaughan's book.  In addition to the drawing Vaughan has two pictures of gauges - different designs but both with hinged ends. 

 

I have another GWR book  'Great Western Branch Line Termini' by Paul Karau.  This has a number of views of loading gauges all of which show gauges with hinged ends - all in the raised position at the time the images were made.

 

The requirement for the hinged section must be something rather obvious / practical that I am missing!!!

 

I shall be interested to hear what you come up with.

 

Regards

 

Ray


I'm searching for more scale drawings of the GWR loading gauge, so your reference to Adrian Vaughan's book was very useful.

Thanks.

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