Bristol Barrow Road - Ash Disposal Pits Update
Entry posted by barrowroad
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Time for an update on the slow progress with the two ash disposal pits. Unlike the other outside pits, which were all updated and in some cases elongated using concrete, these two pits remained with their original brick structure and 5ft cast iron panels to support the track.
Having made 7 of the 10 lengths of iron panels [ fabricated from brass section] I decided I needed a break and started on the pits themselves. The pit under the ash plant itself is 220ft long and is curved. The shorter pit alongside is 130ft and is also curved. This fact meant I could not used my straight jig to glue and assemble the pits. Instead I had to fabricate each pit by cutting the pit bases into a series of short straight sections in order to form the curve. After this the side walls were glued to follow the curve.
I have yet to attach the cast iron [brass] panels to the top of the pit walls - a bit more work is required before this happens - but plan to fix them using 1mm brass screws fixed into pre drilled holes in the side walls of the pit.
A few additional photos:-
In order to fix the brass cast iron panels to the top of the pit side walls I have decided to use 16mm long 12BA cheese head screws which I have to hand. These will be self tapped into the mdf side walls and have the advantage that they can also be used as electrical connectors as they protrude through the bottom of the pit.
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