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... wide, so the slab can be placed further back. Here some pics: 2_270449_340000000.jpg REA (Non-GWR). Centre of brackets and bolts on centre-line of timber. No holding-down bolt. The blunt nose certainly looks closer to the edge of the timber than 2", but on the other hand it also looks narrower than 3/4 ", so this may be a modern revision with 5/8" nose as FB (on a new bullhead crossing with 12" timbers). 2_121258_410000000.jpg 2_121355_050000000.jpg GWR. With holding-down bolt. On 14" timber. 14" timbers "A" were once quite common elsewhere, and I'm wondering if this is the origin of the commonly-quoted 4" dimension for the blunt nose from the timber centre? 3" extension plus 4"= 7"= centre of 14" timber, if the extension is aligned to the edge of the timber. Phil O posted a top view of GWR slab& bracket at: topic 184- message 895 seemingly on a ...
... topic: 3270 Fishbolt holes in check rails- defective timbers posted: 13 May 2018 00:32 from: Rob Manchester 2_121355_050000000.jpg Note fish-bolt holes in end of check rail Hi Martin, Paying attention as always I noticed your note for me relating to the fishplate holes. Would you care to explain the existence of the holes in this position? Re-use of old/worn running rails would seem to be the only reason I can think of and then they would only appear in a small number of check rails. If that is the case you would think that the ends of old running rails would have been cut off prior to re-use as that part of the rail would be subject to the most wear. I guess it wouldn't actually matter that the rail head was worn down as when functioning as check rails there isn't any contact with the rail top surface. Rob posted: 13 May 2018 02:26 from: Martin Wynne Rob Manchester wrote: Would you care to explain the existence of the holes in this position ...
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