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Single Axel Journal Box Assembly and Suspension Spring


844fan
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 Hey All I have a small question can anyone link me to a good photo of a regular journal box and leaf spring up close. I'm talking like on most old LBSCR Coaches (Or the kind of coach that the Thomas Tv series depicts Annie and Claribell as) or most four wheeled Rolling stock such as Wagons, Vans and others. I need a really good reference for a drawing I am currently working on and I cannot find and pictures close up enough to give me a clear view of the construction and shape mostly due to so many Coach stock having the step boards running along side the wheels and obscuring them.

If anyone also has a set of photos showing the journal Box mounting and bearing hole that would be even better. Sorry for such a silly request and I hope that I make sense here as I know the terms but I'm not 100% I used them all correctly. But just incase This b0ee04180d.jpg is what I mean only not a toy and the real deal.

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NB. For coaches the springs will be longer and the spring ends will not support the solebar directly as in those pics but will do so via J hangers.

This might help http://myweb.tiscali.co.uk/gansg/4-rstock/04arstock2e.htm

J hangers on a freight wagon here http://www.bluebell-railway.co.uk/bluebell/pics/458525.html

Regards

Edited by Grovenor
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These are wagon springs which tend to be shorter, and with fewer leaves.

 

Jon attachicon.gifsusp101a.jpg

Ah I had thought that my self Springs on coaches would be of far more leaves than a goods wagon especially since goods wagons do indeed ride ruffer since they carry nonliving things. All this talk on Leaf Springs reminds me of a old Milk Truck my father tried to restore the leaf springs on it always caught my attention thanks to my love of railways and knowledge of Goods wagons and coaches.

 

If I remember correctly as that truck had to be scraped due to fire damage the springs were short in length and many in leaves so it was suited to I'd say some what gentle rides but not as smooth as a car.

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Short, thick leaf springs will deflect less for a given load than longer ones with fewer leaves. The ride therefore will be harsher over a given stretch of track, because there is less movement in the suspension.

 

As an aside, my Morris Minor Traveller (estate with a wooden framed rear) has 7 leaf springs, whereas saloon Minors have 5 leaf springs. This is to account for the fact that estates tend to get loaded up more than saloons. A common mod is to fit 5 leaf springs to improve the ride.

Minor vans and pick-up's all had 8 leaf springs, again reflecting greater load carrying capacity.

 

Cheers N

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