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The stack of liner boards
ready for fitting |
Over the past couple of weeks some of the volunteers have worked an extra day. As a result, the bucket boards are complete and more than half of the wheel liner boards have been fitted (there are actually 48 of them, not 40 as previously stated).
They are made from larch tongue-and-groove (t&g) board, and are initially prepared by cutting them all to the same length.
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One of the liner boards being
persuaded in to place |
They are then offered up to the wheel and marked for the bolts that hold them to the casting and for the three brass screws that fix them to the bucket bottom boards. After drilling they get an application of Roofer's Mate sealant on the mating surfaces before being fixed in place.
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| Ray cuts a board to fit round a spoke |
The boards that coincide with the spokes are a little more complicated. They have to be cut to fit round the spoke and the casting that it fits into. They cannot be fitted in the normal sequence, as the t&g would prevent their being put in their place.
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| Fitting a board trimmed around a spoke |
Instead, the previous board is removed, the trimmed board fitted, and the previous board hammered in from the end.
You may regret using tongue and groove for the lining boards. Normal practice is to use groove and groove planks with a metal strip inserted, its end bent up to hold it in place. This way if a board needs to be replaced, the end of the metal strip each side can be folded flat, the strips withdrawn and the single plank and metal strips (galvanised hoop-iron) replaced without disturbing the planks on each side. Great work!
ReplyDeleteAs above, is there a particular reason why you have decided to use T & G board please. is it cost or simplicity or another reason. Excellent work though , hoping to get to see it.
ReplyDeleteIt was for the combination of relative simplicity (and therefore speed) and watertightness. Hopfully the use of larch will minimise the need to replace boards.
ReplyDelete