The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 410
is also shown in section and marked a, the same being applied to fasten therail in the ordinary manner, viz. by driving the key between the rail and the … Kg. 3. 7 r cheek of the chair. Fig. 2 shows another form of key,which is left open on one side ; in using this descriptionof key it would be advisable to let the ends meet so as toform a butt joint. Fig. 3 [shews an elevation and endview of two hollow pins for fastening the chairs to thesleepers,…
Architecture · Civil engineering · Science
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