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GWR SB nameplate weight

British signalling of the past (UK, excepting Northern Ireland)

GWR SB nameplate weight

Unread postby Chris Osment » Fri May 12, 2017 7:02 pm

Partly for simply curiosity, but also with a serious purpose for 'safe working and handling' procedures etc.....

GWR cast-iron signal-box nameplates were heavy - I know, I've carried a few! But exactly how heavy?

Assume a 'typical' plate such as ANYTOWN SIGNAL BOX, maybe 6 to 7 feet long - roughly how much would it weigh please?

Thanks!
Chris Osment
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http://www.railwest.org.uk
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Re: GWR SB nameplate weight

Unread postby davidwoodcock » Fri May 12, 2017 8:10 pm

Cast iron has a density of 6.800 to 7.800 Kg per cubic metre, 1.000 Kg (or metric tonne) being pretty much the same as the imperial ton.

So if you know the height, length and mean thickness of a plate in metres (100 cm being 1 metre), a few seconds work on the simplest of calculators will give you the approximate weight in Kg.
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Re: GWR SB nameplate weight

Unread postby Ashley Hill » Sat May 13, 2017 3:25 pm

It's all relative really. Old Oak Common Engine Shed Signal Box will always weigh more than Box Signal Box :D
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