OR4-A1765.43: Enharmonic chamber organ, Thomas Parker.
London, c.1765.
The Restoration of the Organ.
The restoration of the organ as opposed to the case may be said to have
started after Christmas 1983. In the summer of that year the instrument
as moved to the workshop of Christopher Stevens, St Margaret's Cottage, Ruspur Road,
Ifield, Crawley. During the period January to July 1984, he carried out a
great deal of work on the organ, which may be summarised as under:-
- The pallets were recovered in leather and felt (leakages taken up this way).
- A new bottom to the windchest was made, as the old was rotten owing to the storage
and Claydon House, Bucks.
- The frame was in bad order and several new members were made
and old joints were reglued.
- The keyboard was completely overhauled and re-bushed
for the balance and guide pins holes.
- On the action, one sticker was repaired and one was replaced.
- Roller board was OK. A few replacement trackers were put in.
- The backfall beam was poorly and a piece was cut out of it to allow a new
piece to be inserted to take the balance/first member.
- The bellows and reservoir was OK and did not need recovering,
but it was raised 4" in the frame owing to the removal of the more recent
base of the organ for the pedals.
- New levers for the feeders were made and the old bellows handle refitted.
- Electric blower was also fitted and cut off valve made to enable bellows
handle to be operated.
New levers and lever beam provided for Principal and Stopped Diapason as
all these, strangely were missing.
Windchest
- New bearers were made for the frame to carry the windchest
and locating holes made to allow for proper positioning of the action.
- Chest floored and pallets recovered. Bars recovered. A great deal of
work was involved here and much trouble encountered, owing to
damp storage at Claydon. Reorganisation of pins for pallet guides
followed as the old arrangement was not satisfactory.
- Surface of bars under pallets needed repair too and this was carried out.
- Three tracker wires (missing) were made.
- Ducts for large pipes (in metal) were repaired in some cases remade or made new.
- Leaks in the upper board traced and eradicated.
- Some new pillars added or repairs made to racks.
Racks extended to take GG and AA pipes Long missing).
New pipes made for:-
| Stopped Diapason |
GG (in a terrible state and could not be remade) |
|
AA (missing, a completely new pipe as above) |
|
d (missing, a completely new pipe as above) |
| Principal |
GG (to replace old oak one of horrible aspect and performance, not original) |
|
AA (old AA pipe which had been cut down was lengthened to proper proportions) |
| Fifteenth |
GG |
|
AA & C new pipes (to organ) from stock of old pipes. |
- New upper lip for F Stopped Diapason and C
largely remade at mitre end - Stopped Diapason in
poor state and many pipes take apart and reglued.
- When organ worked again the act of tuning revealed
that pitch was about one quarter tone higher than normal.
- One of the great disappointments was being unable to
restore the quarter tone of the quarter tone chest. Two problems
basically - absolutely no evidence suggesting how the arrangement
worked originally and the odd arrangement to the slides which should
have been to cut off the flats from the sharps.
But a double slide arrangement would have been necessary
to cut off both series from each individual stop
and there was no indication anywhere of this -
so attempt to recreate was reluctantly abandoned.
Contents | Home Page|
List of Instruments
Last updated: 6 October 2000
Web design - pwillis silliw_luap@hotmail.com
© copyright 2000 The University of Edinburgh
For further information regarding this site contact: webmasters@music.ed.ac.uk