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Above: Before and after pictures of the blower’s control valve assembly. This allows wind to blow into the reservoir until it is full, then shuts off, preventing over-fill. Left: Showing the inlet valve from the blower and the outlet hole into the reservoir. Centre: Showing the crude arrangement of screw-eyes being used as pulleys. The cord used to be connected to the reservoir top but had long-since been worn through, and was lying in disarray on the floor under the organ.Right: I `fitter proped pulleys made from small pieces of dowelling running on phosphor-bronze bearings. In order to gain access to these pieces, it was necessary to move the remaining organ framework.
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At this time the reservoir was inspected for soundness of leather, and as most of the leather was good and supple I decided to patch a few splits (above left) rather than take the whole assembly apart and replace all leather – an expensive job. It should continue without trouble for many years to come. One additional job was needed – the re-leathering and re-mounting of the spill (safety) valve. Its (three) springs had almost rusted through so I replaced them by a single phosphor-bronze spring (above right).
At this point I decided to level the frame so the organ would be really “horizontal” instead of leaning towards the window. This entailed raising the right-hand side about 10mm and standing it on blocks.
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© 2018, John Page