Anatomy of a WurliTzer Theatre Pipe Organ

Manual Chest.

The joints of the chest side walls to the end of a manual chest are a potential problem source for leaks between adjoining ranks. These joins are not always perfect so gaps may be present.

While the chest was the other side up as the inside of the chest was being shellaced extra shellac was run into these joins. In some cases the shellac ran out the other side. Repeated coats caused the leaks to stop. The gaps were not large enough to allow glue to be forced around all the corners. The shellac is liquid enough to wick its way around the corners and will fill all the small gaps. It will shrink as it dries but the next coat will have a smaller gap to fill until it forms a complete seal.

The timber adjacent to the corners was left un-shellaced to enable a strip of leather to be glued along the join.


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