Studio801's * Dr. Mark projects page
Revised 1/28/2008

Lincoln

196 High Street

London

Click on the image to the left and it will take you to a full page copy of this instruments maker information .
 
 
Pump Restoration    

When the he pump was removed from the case, it was seen that it had been covered with a heavy canvas bellows cloth probably used on player pianos.

As can be seen in this image, this material had not held up. It had been repaired not once but twice. Once with the white leather then with pouch leather. In order to restore this pump all of the leathers and cloth had to be removed and all of the boards where sanded, cleaned then checked for warps and cracks. These pine parts need to be sealed to prevent leaks and the proper Alum tanned leather glued to them.

Likely in order to finish, this pump will require wood strips over the leather where it is glued to the wood. This will keep the leather from pulling off of the bellows.

 
 
This board is cracked and leaked between the pumps. It was common to repaired these boards by covering the insides with paper. This pump has vintage writing sheets glued to the boards .
 
 

This board was warped in the direction of the wood grain and was cracked . To Repair the board it was flattened then table saw cut along the end grain. to stiffen and strengthen it a piece of maple was glued across the grain then clamped. This strip is only about 3/4" deep and will be completely covered when the pump is covered.

 
 
  New stiffing ribbs were cut from illustration board in the size of the ones that were removed. These new boards were glued to 50 thousands thick "alum tanned" leather that will make up the new wind pump bellows .
The valve holes in this board were split and pieces of wood were missing. This support is necessary for the proper operation of the valve . To repair the problem the vintage paper was removed
 
In this image the repair can be seen from the valve side of the The board. This section was saw cut to remove the bad section of wood and a new piece of wood was shaved and tightly fitted into the vintage pump board.
 

The pump board above shows the same repair but this time from the outside of the pump.

 

This last view shows a piece of maple vaneer that has been glued acrossed the board grain for strgenth and to provide a very smooth valve surface

 

 

   
Finished pump re-installed in the case.

 
These images show the newly covered pump restored and installed in the organ case. (Click on each of them for a larger versions.) With the exhaust covered the pump filles to full preasure in three turns of the cranks. On to the Valve Chest and Pipes.
       

Valve Chest

The valve chest has been tackled and is shown here being rebuilt. The pallet valve leather was checked and were in very good shape. The problem in the chest related more to the inside hardware. There were many rust damaged pallet guide pins and weak and corroded pallet springs. All of the pins were removed and were replaced with 18 gage, 1-1/4", finishing nails. After they had been put in place they were cut to length. Hardened brass wire (0.20 in dia) was used to make a full set of new springs. lastle the chest was releathered and sealed up for assembly of the pipe manifold.
   
Tracker Frame
The tracker frame has been taken totally apart and the all of the pieces have been cleaned filled and finished the brass adjusters have all been bead blasted and reinstalled. The Key Fingers have all been cleaned and the wood has been sanded . The brass key guides were worn out and "junk". A new set have been made but not fitted as needed.
 
 
 
This is the start of a drawing I have been making of this instrument. The frame has been grain filled and shellacked and the adjusters are reinstalled .
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